INNOSPEC INC., 10-K filed on 17 Feb 21
v3.20.4
Cover Page - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2020
Feb. 10, 2021
Jun. 30, 2020
Cover [Abstract]      
Document Type 10-K    
Amendment Flag false    
Document Fiscal Year Focus 2020    
Document Fiscal Period Focus FY    
Document Annual Report true    
Document Transition Report false    
Current Fiscal Year End Date --12-31    
Document Period End Date Dec. 31, 2020    
Entity File Number 1-13879    
Entity Registrant Name INNOSPEC INC.    
Entity Central Index Key 0001054905    
Entity Incorporation, State or Country Code DE    
Entity Tax Identification Number 98-0181725    
Entity Address, Postal Zip Code 80112    
City Area Code 303    
Local Phone Number 792 5554    
Security Exchange Name NASDAQ    
Title of 12(b) Security Common stock    
Entity Filer Category Large Accelerated Filer    
Entity Small Business false    
Entity Emerging Growth Company false    
Entity Shell Company false    
Entity Common Stock, Shares Outstanding   24,598,689  
Entity Address, Address Line One 8310 South Valley Highway    
Entity Address, Address Line Two Suite 350    
Entity Address, City or Town Englewood    
Entity Address, State or Province CO    
Trading Symbol IOSP    
Entity Current Reporting Status Yes    
Entity Interactive Data Current Yes    
Entity Voluntary Filers No    
Entity Well-known Seasoned Issuer Yes    
Entity Public Float     $ 1,061
ICFR Auditor Attestation Flag true    
v3.20.4
Consolidated Statements of Income - USD ($)
shares in Thousands, $ in Millions
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Income Statement [Abstract]      
Net sales $ 1,193.1 $ 1,513.3 $ 1,476.9
Cost of goods sold (850.4) (1,047.1) (1,041.9)
Gross profit 342.7 466.2 435.0
Operating expenses:      
Selling, general and administrative (237.0) (280.9) (261.0)
Research and development (30.9) (35.4) (33.4)
Restructuring charge (21.3) (0.0) (7.1)
Impairment of intangible assets (19.8) (0.0) (0.0)
Total operating expenses (309.0) (316.3) (301.5)
Operating income 33.7 149.9 133.5
Other income, net 7.8 5.3 5.0
Interest expense, net (1.8) (4.8) (6.9)
Income before income tax expense 39.7 150.4 131.6
Income tax expense (11.0) (38.2) (46.6)
Net income $ 28.7 $ 112.2 $ 85.0
Earnings per share:      
Basic $ 1.17 $ 4.58 $ 3.48
Diluted $ 1.16 $ 4.54 $ 3.45
Weighted average shares outstanding (in thousands):      
Basic 24,563 24,482 24,401
Diluted 24,779 24,728 24,603
v3.20.4
Consolidated Statements of Comprehensive Income - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Statement of Comprehensive Income [Abstract]      
Net income $ 28.7 $ 112.2 $ 85.0
Changes in cumulative translation adjustment, net of tax of $3.9 million, $(0.3) million and $2.7 million, respectively 23.7 (6.0) (22.6)
Changes in derivative instruments, net of tax of $0.0 million, $(0.4) million and $(0.1) million, respectively 0.0 (1.5) 0.3
Amortization of prior service credit, net of tax of $0.1 million, $0.2 million and $0.2 million, respectively (0.4) (0.7) (0.9)
Amortization of actuarial net losses, net of tax of $(0.2) million, $0.0 million and $(0.3) million, respectively 1.5 (0.0) 1.7
Actuarial net (losses)/gains arising during the year, net of tax of $1.9 million, $(2.2) million and $3.3 million, respectively (7.7) 9.5 (15.7)
Total comprehensive income $ 45.8 $ 113.5 $ 47.8
v3.20.4
Consolidated Statements of Comprehensive Income (Parenthetical) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Statement of Comprehensive Income [Abstract]      
Changes in cumulative translation adjustment, tax $ 3.9 $ 0.3 $ 2.7
Changes in derivative instruments, tax 0.0 0.4 0.1
Amortization of prior service credit, tax 0.1 0.2 0.2
Amortization of actuarial net losses, tax 0.2 0.0 0.3
Actuarial net gains, tax $ 1.9 $ 2.2 $ 3.3
v3.20.4
Consolidated Balance Sheets - USD ($)
$ in Millions
Dec. 31, 2020
Dec. 31, 2019
Current assets:    
Cash and cash equivalents $ 105.3 $ 75.7
Trade and other accounts receivable (less allowances of $4.5 million and $3.8 million, respectively) 221.4 292.0
Inventories (less allowances of $19.4 million and $14.5 million, respectively):    
Finished goods 156.3 173.9
Raw materials 63.7 70.7
Total inventories 220.0 244.6
Prepaid expenses 14.9 14.7
Prepaid income taxes 4.2 2.5
Other current assets 0.4 0.8
Total current assets 566.2 630.3
Net property, plant and equipment 210.8 198.7
Operating lease right-of-use assets 40.1 32.4
Goodwill 371.2 363.0
Other intangible assets 75.3 113.5
Deferred tax assets 7.6 9.1
Pension asset 118.0 115.9
Other non-current assets 8.2 5.9
Total assets 1,397.4 1,468.8
Current liabilities:    
Accounts payable 98.7 122.0
Accrued liabilities 129.8 154.0
Current portion of finance leases 0.5 1.0
Current portion of plant closure provisions 6.6 5.6
Current portion of accrued income taxes 5.5 10.3
Current portion of operating lease liabilities 11.3 10.6
Total current liabilities 252.4 303.5
Long-term debt, net of current portion 0.0 58.6
Finance leases, net of current portion 0.1 0.5
Operating lease liabilities, net of current portion 28.9 21.9
Plant closure provisions, net of current portion 51.9 43.7
Accrued income taxes, net of current portion 32.4 36.2
Unrecognized tax benefits, net of current portion 16.0 16.4
Deferred tax liabilities 46.9 49.6
Pension liabilities and post-employment benefits 20.5 17.8
Other non-current liabilities 3.4 1.7
Equity:    
Common stock, $0.01 par value, authorized 40,000,000 shares, issued 29,554,500 shares 0.3 0.3
Additional paid-in capital 336.1 330.4
Treasury stock (4,958,599 and 5,047,278 shares at cost, respectively) (93.3) (93.3)
Retained earnings 758.6 755.5
Accumulated other comprehensive loss (57.3) (74.4)
Total Innospec stockholders' equity 944.4 918.5
Non-controlling interest 0.5 0.4
Total equity 944.9 918.9
Total liabilities and equity $ 1,397.4 $ 1,468.8
v3.20.4
Consolidated Balance Sheets (Parenthetical) - USD ($)
$ in Millions
Dec. 31, 2020
Dec. 31, 2019
Statement of Financial Position [Abstract]    
Allowances for doubtful accounts $ 4.5 $ 3.8
Inventory allowances $ 19.4 $ 14.5
Common stock, par value $ 0.01 $ 0.01
Common stock, shares authorized 40,000,000 40,000,000
Common stock, shares issued 29,554,500 29,554,500
Treasury stock, shares 4,958,599 5,047,278
v3.20.4
Consolidated Statements of Cash Flows - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Cash Flows from Operating Activities      
Net income $ 28.7 $ 112.2 $ 85.0
Adjustments to reconcile net income to net cash provided by operating activities:      
Depreciation and amortization 46.0 47.6 49.6
Impairment of intangible assets 19.8 0.0 0.0
Impairment of tangible assets 2.0 0.0 0.0
Deferred tax (benefit)/expense (2.5) (0.8) 5.5
Cash contributions to defined benefit pension plans (0.0) (0.4) (1.0)
Non-cash income of defined benefit pension plans (4.0) (6.1) (4.3)
Stock option compensation 5.8 6.6 4.9
Changes in assets and liabilities, net of effects of acquired and divested companies:      
Trade and other accounts receivable 74.4 (18.2) (40.1)
Inventories 25.5 2.4 (42.2)
Prepaid expenses (1.0) (3.1) 0.5
Accounts payable and accrued liabilities (45.9) 23.2 38.4
Accrued income taxes (10.3) (2.4) (6.1)
Plant closure provisions 8.5 0.0 3.6
Unrecognized tax benefits (0.4) 2.5 11.5
Other assets and liabilities (0.7) (1.9) (0.4)
Net cash provided by operating activities 145.9 161.6 104.9
Cash Flows from Investing Activities      
Capital expenditures (29.7) (29.9) (28.9)
Business combinations, net of cash acquired (0.0) (0.0) (5.4)
Internally developed software (0.0) (1.1) (1.2)
Net cash used in investing activities (29.7) (31.0) (35.5)
Cash Flows from Financing Activities      
Non-controlling interest 0.1 0.0 0.0
Proceeds from revolving credit facility 15.0 105.5 10.0
Repayments of revolving credit facility (75.0) (171.5) (5.0)
Repayment of term loans 0.0 (82.5) (16.5)
Repayment of finance leases (1.1) (1.7) (2.7)
Refinancing costs (0.3) (1.5) (0.0)
Dividend paid (25.6) (25.0) (21.7)
Issue of treasury stock 2.2 1.2 1.1
Repurchase of common stock (2.1) (2.4) (1.4)
Net cash used in financing activities (86.8) (177.9) (36.2)
Effect of foreign currency exchange rate changes on cash 0.2 (0.1) (0.3)
Net change in cash and cash equivalents 29.6 (47.4) 32.9
Cash and cash equivalents at beginning of year 75.7 123.1 90.2
Cash and cash equivalents at end of year $ 105.3 $ 75.7 $ 123.1
v3.20.4
Condensed Consolidated Statements of Equity - USD ($)
$ in Millions
Total
Common Stock [Member]
Additional Paid-In Capital [Member]
Treasury Stock [Member]
Retained Earnings [Member]
Accumulated Other Comprehensive Loss [Member]
Non-Controlling Interest [Member]
Beginning Balance at Dec. 31, 2017 $ 794.3 $ 0.3 $ 320.4 $ (93.3) $ 605.0 $ (38.5) $ 0.4
Net income 85.0       85.0    
Dividend paid (21.7)       (21.7)    
Changes in cumulative translation adjustment, net of tax (22.6)         (22.6)  
Share of net income 0.1           0.1
Changes in derivative instruments, net of tax 0.3         0.3  
Treasury stock re-issued 1.5   (0.4) 1.9      
Treasury stock repurchased (1.4)     (1.4)      
Stock option compensation 4.9   4.9        
Amortization of prior service credit, net of tax (0.9)         (0.9)  
Amortization of actuarial net losses, net of tax 1.7         1.7  
Actuarial net gains (losses) arising during the year, net of tax (15.7)         (15.7)  
Ending Balance at Dec. 31, 2018 825.5 0.3 324.9 (92.8) 668.3 (75.7) 0.5
Net income 112.2       112.2    
Dividend paid (25.0)       (25.0)    
Changes in cumulative translation adjustment, net of tax (6.0)         (6.0)  
Share of net income (0.1)           (0.1)
Changes in derivative instruments, net of tax (1.5)         (1.5)  
Treasury stock re-issued 0.8   (1.1) 1.9      
Treasury stock repurchased (2.4)     (2.4)      
Stock option compensation 6.6   6.6        
Amortization of prior service credit, net of tax (0.7)         (0.7)  
Amortization of actuarial net losses, net of tax (0.0)            
Actuarial net gains (losses) arising during the year, net of tax 9.5         9.5  
Ending Balance at Dec. 31, 2019 918.9 0.3 330.4 (93.3) 755.5 (74.4) 0.4
Net income 28.7       28.7    
Dividend paid (25.6)       (25.6)    
Changes in cumulative translation adjustment, net of tax 23.7         23.7  
Share of net income 0.1           0.1
Changes in derivative instruments, net of tax 0.0            
Treasury stock re-issued 2.0   (0.1) 2.1      
Treasury stock repurchased (2.1)     (2.1)      
Stock option compensation 5.8   5.8        
Amortization of prior service credit, net of tax (0.4)         (0.4)  
Amortization of actuarial net losses, net of tax 1.5         1.5  
Actuarial net gains (losses) arising during the year, net of tax (7.7)         (7.7)  
Ending Balance at Dec. 31, 2020 $ 944.9 $ 0.3 $ 336.1 $ (93.3) $ 758.6 $ (57.3) $ 0.5
v3.20.4
Consolidated Statements of Equity (Parenthetical) - $ / shares
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Statement of Stockholders' Equity [Abstract]      
Dividend paid, per share $ 1.04 $ 1.02 $ 0.89
v3.20.4
Nature of Operations
12 Months Ended
Dec. 31, 2020
Organization, Consolidation and Presentation of Financial Statements [Abstract]  
Nature of Operations
Note 1.     Nature of Operation
s
Innospec develops, manufactures, blends, markets and supplies fuel additives, oilfield chemicals, personal care products and other specialty chemicals. Our products are sold primarily to oil and gas exploration and production companies, oil refiners, personal care and home care companies, formulators of agrochemical and metal extraction preparations and other chemical and industrial companies throughout the world. Our fuel additives help improve fuel efficiency, boost engine performance and reduce harmful emissions. Our Performance Chemicals business provides effective technology-based solutions for our customers’ processes or products focused in the Personal Care, Home Care, Agrochemical and Metal Extraction markets. Our Oilfield Services business supplies drilling and production chemicals which make exploration and production more
cost-efficient,
and more environmentally friendly. Our Octane Additives business manufactures a fuel additive for use in automotive gasoline and provides services in respect of environmental remediation. Our principal reportable segments are Fuel Specialties, Performance Chemicals, Oilfield Services and Octane Additives (ceased trading June 30, 2020).
v3.20.4
Accounting Policies
12 Months Ended
Dec. 31, 2020
Accounting Policies [Abstract]  
Accounting Policies
Note 2.     Accounting Policies
Basis of preparation:
The consolidated financial statements have been prepared in accordance with generally accepted accounting principles (“GAAP”) in the United States of America on a going concern basis and include all subsidiaries of the Company where the Company has a controlling financial interest. All significant intercompany accounts and balances have been eliminated upon consolidation. In accordance with GAAP in the United States of America, the results of operations of an acquired or disposed business are included or excluded from the consolidated financial statements from the date of acquisition or disposal.
Use of estimates:
The preparation of the consolidated financial statements, in accordance with GAAP in the United States of America, requires management to make estimates and assumptions that affect the amounts reported in the consolidated financial statements and accompanying notes. Actual results could differ from those estimates.
Revenue recognition:
Our revenues are primarily derived from the manufacture and sale of specialty chemicals. We recognize revenue when control of the product is transferred to our customer and for an amount that reflects the consideration we expect to collect from the customer. Control is generally transferred to the customer when title transfers (which may include physical possession by the customer), we have a right to payment from the customer, the customer has accepted the product, and the customer has assumed the risks and rewards of ownership. We have supplier managed inventory arrangements with some of our customers to facilitate
on-demand
product availability. In some cases, the inventory resides at a customer site, although title has not transferred, we are not entitled to payment, and we have not invoiced for the product. We have evaluated the contract terms under these arrangements and have determined that control transfers when the customer uses the product, at which time
revenue is recognized. Our contracts generally include one performance obligation, which is providing specialty chemicals. The performance obligation is satisfied at a point in time when products are shipped, delivered, or consumed by the customer, depending on the underlying contracts.
While some of our customers have payment terms beyond 30 days, we do not provide extended payment terms of a year or more, nor do our contracts include a financing component. Some of our contracts include variable consideration in the form of rebates. We record rebates at the point of sale as a reduction in sales when we can reasonably estimate the amount of the rebate. The estimates are based on our best judgment at the time of sale, which includes anticipated as well as historical performance.
 
Taxes assessed by a governmental authority which are concurrent with sales to our customers, including sales, use, value-added, and revenue-related excise taxes, are collected by us from the customer and are not included in net sales, but are reflected in accrued liabilities until remitted to the appropriate governmental authority. When we are responsible for shipping and handling costs after title has transferred, we account for those as fulfilment costs and include them in cost of goods sold.
Components of net sales:
All amounts billed to customers relating to shipping and handling are classified as net sales. Shipping and handling costs incurred by the Company are classified as cost of goods sold.
Components of cost of goods sold:
Cost of goods sold is comprised of raw material costs including inbound freight, duty and
non-recoverable
taxes, inbound handling costs associated with the receipt of raw materials, packaging materials, manufacturing costs including labor costs, maintenance and utility costs, plant and engineering overheads, amortization expense for certain other intangible assets, warehousing and outbound shipping costs and handling costs. Inventory losses and provisions and the costs of customer claims are also recognized in the cost of goods line item.
Components of selling, general and administrative expenses:
Selling expenses comprise the costs of the direct sales force, and the sales management and customer service departments required to support them. It also comprises commission charges, the costs of sales conferences and trade shows, the cost of advertising and promotions, amortization expense for certain other intangible assets, and the cost of bad and doubtful debts. General and administrative expenses comprise the cost of support functions including accounting, human resources, information technology and the cost of group functions including corporate management, finance, tax, treasury, investor relations and legal departments. Provision of management’s best estimate of legal and settlement costs for litigation in which the Company is involved is accounted for in the administrative expense line item.
Research and development expenses:
Research, development and testing costs are expensed to the income statement as incurred.
Earnings per share:
Basic earnings per share is based on the weighted average number of common shares outstanding during the period. Diluted earnings per share includes the effect of options that are dilutive and outstanding during the period.
Foreign currencies:
The Company’s policy is that foreign exchange differences arising on the translation of the balance sheets of entities that have functional currencies other than the U.S. dollar are taken to a separate equity reserve, the cumulative translation adjustment. In entities where the U.S. dollar is the functional currency no gains or losses on translation occur, and gains or losses on monetary assets relating to currencies other than the U.S. dollar are taken to the income statement in other income/(expense), net. Gains and losses on intercompany foreign currency loans which are long-term in nature, which the Company does not intend to settle in the foreseeable future, are also recorded in accumulated other comprehensive loss. Other foreign exchange gains or losses are also included in other income, net in the income statement.
Stock-based compensation plans:
The Company accounts for employee stock options and stock equivalent units under the fair value method. Stock options are fair valued at the grant date and the fair value is recognized straight-line over the vesting period of the option. Stock equivalent units are fair valued at each balance sheet date and the fair value is spread over the remaining vesting period of the unit.
Business combinations:
The acquisition method of accounting requires that we recognize the assets acquired and liabilities assumed at their acquisition date fair values. Goodwill is measured as the excess of consideration transferred over the acquisition date net fair values of the assets acquired and the liabilities assumed.
The determination of the fair values of certain assets and liabilities are usually based on significant estimates provided by management, such as forecast revenue or profit. In determining the fair value of intangible assets, an income approach is generally used and may incorporate the use of a discounted cash flow method. In applying the discounted cash flow method, the estimated future cash flows and residual values for each intangible asset are discounted to a present value using a discount rate appropriate to the business being acquired. These cash flow projections are based on management’s estimates of economic and market conditions including revenue growth rates, operating margins, capital expenditures and working capital requirements.
Cash equivalents:
Investment securities with maturities of three months or less when purchased are considered to be cash equivalents.
Trade and other accounts receivable:
The Company records trade and other accounts receivable at net realizable value and maintains allowances for customers not making required
payments. The Company determines the adequacy of allowances by periodically evaluating each customer receivable considering our customer’s financial condition, credit history and current economic conditions.
Credit losses:
With an effective date of January 1, 2020, we have applied Accounting Standards Update (ASU)
No. 2016-13,
Financial Instruments – Credit Losses (ASC Topic 326). This replaces the incurred loss impairment methodology under previous GAAP with a methodology that reflects expected credit losses and requires consideration of a broader range of reasonable and supportable information to inform credit loss estimates.
The standard was adopted using prospective application and principally impacts the allowance for trade and other accounts receivables. Upon adoption, there was no adjustment made to opening retained earnings as at January 1, 2020. As a result of implementing the standard, the Company did not recognize any material change to the allowance within trade and other accounts receivable as at January 1, 2020. Trade and other accounts receivable are shown net of a $4.5 million allowance at 
December 31
, 2020. The allowance remains immaterial to the financial statements.
The Company is exposed to credit losses primarily through sales of products. The Company’s expected loss allowance methodology for trade and other accounts receivable is developed using historical collection experience, current and future economic and market conditions and a review of the current status of customers’ receivables. Due to the short-term nature of such receivables, the estimate of accounts receivable amounts that may not be collected is based on aging of the accounts receivable balances and the financial condition of customers. Additionally, a further allowance is included to account for the Company’s historic track record of credit losses, for balances which are not aged sufficiently to be considered under the aging based approach.
The Company considered the current and expected future economic and market conditions surrounding the
COVID-19
pandemic and determined that the estimate of credit losses was not significantly impacted.
Inventories:
Inventories are stated at the lower of cost (FIFO method) or market value.
Cost
includes materials, labor and an appropriate proportion of plant overheads. The Company accrues volume discounts where it is probable that the required volume will be attained and the amount can be reasonably estimated. The discounts are recorded as a reduction in the cost of materials based on projected purchases over the period of the agreement. Inventories are adjusted for estimated obsolescence and written down to market value based on estimates of future demand and market conditions.
Property, plant and equipment:
Property, plant and equipment are stated at cost less accumulated depreciation. Depreciation is provided over the estimated useful lives of the assets using the straight-line method and is allocated between cost of goods sold and operating
expenses. The cost of additions and improvements are capitalized. Maintenance and repairs are charged to expenses as incurred. When assets are sold or retired the associated cost and accumulated depreciation are removed from the consolidated financial statements and any related gain or loss is included in earnings. The estimated useful lives of the major classes of depreciable assets are as follows:
 
Buildings
     7
 
to 25
 
years
 
Equipment
     3 to 10
 
years
 
Goodwill:
Goodwill is deemed to have an indefinite life and is subject to at least annual impairment assessments at the reporting unit level. The Company considers that its reporting units are consistent with its reportable segments. The components in each segment (including products, markets and competitors) have similar economic characteristics and the segments, therefore, reflect the lowest level at which operations and cash flows can be sufficiently distinguished, operationally and for financial reporting purposes, from the rest of the Company.
Initially we perform a qualitative assessment to determine whether it is more likely than not (that is, a likelihood of more than 50 percent) that the fair value of a segment is less than the carrying amount prior to performing a quantitative goodwill impairment test. The annual measurement date for impairment assessment of the goodwill relating to the Fuel Specialties, Performance Chemicals and Oilfield Services segments is December 31 each year. Factors utilized in the qualitative assessment process include macroeconomic conditions, industry and market considerations, cost factors, overall financial performance and Company specific events.
If a quantitative test is required, we assess the fair value based on projected
post-tax
cash flows discounted at the Company’s weighted average cost of capital. These fair value techniques require management judgment and estimates including revenue growth rates, projected operating margins, changes in working capital and discount rates. We would develop these assumptions by considering recent financial performance and industry growth estimates.
O
ther intangible assets:
Other intangible assets are deemed to have finite lives and are amortized using the straight-line method over their estimated useful lives. The Company capitalizes software development costs as intangible assets, including licenses, subsequent to the establishment of technological feasibility. These assets are tested for potential impairment when events occur or circumstances change, which suggest an impairment may have occurred.
In order to facilitate testing for potential impairment the Company groups together assets at the lowest possible level for which cash flow information is available. Undiscounted future cash flows expected to result from the asset groups are compared with the carrying value of the assets and, if such cash flows are lower, an impairment loss may be recognized. The amount of the impairment loss is the difference between the fair value and the carrying value
of the assets. Fair values are determined using
post-tax
cash flows discounted at the Company’s weighted average cost of capital. If events occur or circumstances change it may cause a reduction in the periods over which the assets are amortized, or result in a
non-cash
impairment of their carrying value. A reduction in the amortization periods would have no impact on cash flows.
The estimated useful lives of the major classes of assets are as follows:
 
Technology
     10
 
to 17
 
years
 
Customer lists
     10
 
to 15
 
years
 
Brand names
     5
 
to 10
 
years
 
Product rights
     9
 
to 10
 
years
 
Internally developed software
     3 to 5
 
years
 
Marketing related
     11 years  
Leases:
With an effective date of January 1, 2019 we have applied Accounting Standards Update (ASU)
2016-02,
Revision to Lease Accounting, ASC Topic 842 which replaces ASC Topic 840, Leases. ASU
2016-02
requires lessees to recognize a
right-of-use
(“ROU”) asset and a lease liability for all of their leases (other than leases that meet the definition of a short-term lease).
The standard was adopted using a modified retrospective transition method, with the Company electing not to adjust comparative periods. We have taken the election not to apply the requirements to short-term leases and have taken the election not to separate related
non-lease
components from lease components.
The standard had a material impact on our consolidated balance sheet as at December 31, 2019, but did not have an impact on our consolidated income statements. The most significant impact was the recognition of ROU assets and lease liabilities and the related deferred taxes thereon for operating leases, while our accounting for finance leases remained substantially unchanged. Operating lease liabilities recognized under the new standard are not considered to be debt.
We determine if an arrangement is a lease at inception. The present value of the future lease payments for operating leases is included in operating lease ROU assets, and operating lease liabilities (current and
non-current)
on our consolidated balance sheet at December 31, 2020. The carrying value of assets under finance leases is included in property, plant and equipment and finance lease liabilities (current and
non-current)
on our consolidated balance sheet at December 31, 2020.
Operating lease ROU assets and operating lease liabilities are recognized based on the present value of future lease payments over the remaining lease term. Very few of our leases have renewal options or early termination break clauses, but where they do we have assessed the
term of the lease based on any options being exercised only if they are reasonably certain. As most of our leases do not provide an implicit interest rate, we use our incremental borrowing rate based on the information available at point of recognition in determining the present value of future payments.
The operating lease ROU asset excludes lease incentives and initial direct costs incurred. Lease expense for lease payments is recognized on a straight-line basis over the lease term unless payments are variable per the agreement. Where we have lease payments linked to an index or inflationary rate, this rate has been used to value the asset and liability at the inception of the lease. If the payments are not linked to a specific index or inflationary rate, but can vary during the term of the agreement, they have been included at their actual value for each future period.    In some circumstances the future expected payments may be dependent on other factors, for example production volumes, in which case we have used the minimum future expected payments to value the asset.
We do not recognize a ROU asset or operating lease liability for short-term leases (with a length of one year or less), and any associated cost is recognized, as incurred, through the income statement.
Deferred finance costs:
The costs relating to debt financing are capitalized are amortized using the effective interest method over the expected life of the debt financing facility. The amortization charge is included in interest expense in the income statement.
Impairment of long-lived assets:
The Company reviews the carrying value of its long-lived assets, including buildings and equipment, whenever changes in circumstances suggest that the carrying values may be impaired. In order to facilitate this test the Company groups together assets at the lowest possible level for which cash flow information is available. Undiscounted future cash flows expected to result from the asset groups are compared with the carrying value of the asset groups and if they are lower an impairment loss may be recognized. The amount of the impairment loss is the difference between the fair value and the carrying value of the asset groups. Fair values are determined using
post-tax
cash flows discounted at the Company’s weighted average cost of capital.
Derivative instruments:
From time to time,
the Company uses various derivative instruments including forward currency contracts, options, interest rate swaps and commodity swaps to manage certain exposures. These instruments are entered into under the Company’s corporate risk management policy to minimize exposure and are not for speculative trading purposes. The Company recognizes all derivatives as either current or
non-current
assets or liabilities in the consolidated balance sheet and measures those instruments at fair value. Changes in the fair value of derivatives that are not designated as hedges, or do not meet the requirements for hedge accounting, are recognized in earnings. Derivatives which are designated as hedges are tested for effectiveness on a quarterly basis, and marked to market. The ineffective portion of the derivative’s change in value is recognized in earnings. The effective portion is recognized in other comprehensive income until the hedged item is recognized in earnings.
Environmental compliance and remediation:
Environmental compliance costs include ongoing maintenance, monitoring and similar costs. We recognize environmental liabilities when they are probable and the costs can be reasonably estimated, and asset retirement obligations when there is a legal obligation and the costs can be reasonably estimated. The vast majority of our plant closure provision relates to our Ellesmere Port site in the United Kingdom.
The Company must comply with environmental legislation in the countries in which it operates or has operated in and annually reassesses the program of work required. This includes estimating the credit-adjusted risk free rate and the timing and cost of performing the remediation work. Management use specialists to develop these estimates and assumptions utilizing the latest information available together with experience of recent costs. While we believe our assumptions for environmental liabilities are reasonable, they are subjective judgements and it is possible that variations in any of the assumptions will result in materially different calculations to the liabilities we have reported. Costs of future obligations are discounted to their present values using the Company’s credit-adjusted risk-free rate.
Pension plans and other post-employment benefits:
The Company recognizes the funded status of defined benefit post-retirement plans on the consolidated balance sheets and changes in the funded status in comprehensive income. The measurement date of the plan’s funded status is the same as the Company’s fiscal
year-end.
The service costs are recognized as employees render the services necessary to earn the post-employment benefits. Prior service costs and credits and actuarial gains and losses are amortized over the average remaining life expectancy of the inactive participants using the corridor method.
Movements in the underlying plan asset value and Projected Benefit Obligation (“PBO”) are dependent on actual return on investments as well as our assumptions in respect of the discount rate, annual member mortality rates, future return on assets and future inflation.
Income taxes:
The Company provides for income taxes by recognizing deferred tax assets and liabilities for the expected future tax consequences of temporary differences between the financial statement carrying amounts and the relevant tax bases of the assets and liabilities. The Company then evaluates the need for a valuation allowance to reduce deferred tax assets to the amount more likely than not to be realized. The effect on deferred taxes of a change in tax rates is recognized in the period that includes the enactment date. The Company recognizes the tax benefit from a tax position only if it is more likely than not that the tax position will be sustained on examination by the taxing authorities, based on the technical merits of the position. The tax benefits recognized in the financial statements from such positions are then measured based on the largest benefit that has a greater than 50% likelihood of being realized upon settlement. Changes in recognition or measurement are reflected in the period in which the change in judgment occurs. The Company recognizes accrued interest and penalties associated with unrecognized tax benefits as part of income taxes in our consolidated statements of income.
v3.20.4
Segment Reporting and Geographical Area Data
12 Months Ended
Dec. 31, 2020
Segment Reporting [Abstract]  
Segment Reporting
Note 3.     Segment Reporting and Geographical Area Data
The Fuel Specialties, Performance Chemicals and Oilfield Services segments operate in markets where we actively seek growth opportunities although their ultimate customers are different. The Octane Additives segment ceased trading and is no longer a reporting segment from July 1, 2020, as
reported
in our Quarterly Report on Form
10-Q
for the quarter ended June 30, 2020.
Our Fuel Specialties segment develops, manufactures, blends, markets and supplies a range of specialty chemicals products used as additives to a wide range of fuels.
Our Performance
Chemicals
segment provides effective technology-based solutions for our customers’ processes or products focused in the Personal Care, Home Care, Agrochemical and Metal
Extraction
markets.
Our Oilfield Services segment develops and markets chemical solutions for fracturing, stimulation and stimulation operations, products for oil and gas production which aid flow assurance and maintain asset integrity and products to prevent loss of mud in drilling operations.
The Octane Additives business has ceased trading and is no longer a reporting segment from July 1, 2020 as the production of TEL for use in motor gasoline has finished. Legacy costs related to these operations are now being recorded as operating expenses within corporate costs.
There are no significant customers with sales greater than 10% of our net group sales in the last three financial years.
The Company evaluates the performance of its segments based on operating income. The following table analyzes sales and other financial information by the Company’s reportable segments:
 
(in millions)
  
2020
    
2019
    
2018
 
Net Sales:
                          
Refinery and Performance
   $ 372.9      $ 427.9      $ 432.1  
Other
     139.8        155.8        142.4  
    
 
 
    
 
 
    
 
 
 
Fuel Specialties
     512.7        583.7        574.5  
    
 
 
    
 
 
    
 
 
 
Personal Care
     231.4        228.0        241.4  
Home Care
     87.0        93.4        109.1  
Other
     107.0        107.3        117.6  
    
 
 
    
 
 
    
 
 
 
Performance Chemicals
     425.4        428.7        468.1  
    
 
 
    
 
 
    
 
 
 
Oilfield Services
     255.0        479.9        400.6  
Octane Additives
     0.0        21.0        33.7  
    
 
 
    
 
 
    
 
 
 
     $ 1,193.1      $ 1,513.3      $ 1,476.9  
    
 
 
    
 
 
    
 
 
 
 
(in millions)
  
2020
   
2019
   
2018
 
Gross profit:
                        
Fuel Specialties
   $ 160.3     $ 204.5     $ 195.0  
Performance Chemicals
     103.8       100.1       97.5  
Oilfield Services
     80.8       159.9       130.4  
Octane Additives
     (2.2     1.7       12.1  
    
 
 
   
 
 
   
 
 
 
     $ 342.7     $ 466.2     $ 435.0  
    
 
 
   
 
 
   
 
 
 
Operating income/(expense):
                        
Fuel Specialties
   $ 84.5     $ 116.6     $ 116.3  
Performance Chemicals
     54.8       48.7       44.7  
Oilfield Services
     (9.5     39.7       22.1  
Octane Additives
     (2.8     (0.7     9.9  
Corporate costs
     (52.2     (54.4     (52.4
Restructuring charge
     (21.3     0.0       (7.1
Impairment of intangible assets
     (19.8     0.0       0.0  
    
 
 
   
 
 
   
 
 
 
Total operating income
   $ 33.7     $ 149.9     $ 133.5  
    
 
 
   
 
 
   
 
 
 
Identifiable assets at year end:
                        
Fuel Specialties
   $ 509.7     $ 499.7     $ 470.5  
Performance Chemicals
     391.5       383.3       463.9  
Oilfield Services
     210.8       316.8       296.1  
Octane Additives
     0.0       24.2       39.6  
Corporate
     285.4       244.8       203.3  
    
 
 
   
 
 
   
 
 
 
     $ 1,397.4     $ 1,468.8     $ 1,473.4  
    
 
 
   
 
 
   
 
 
 
Identifiable assets relating to our tetra ethyl lead (“TEL”) operations are included within our Fuel Specialties segment in 2020 and in our Octane Additives segment in 2019 and 2018, as shown in the table above. Octane Additives ceased trading on June 30, 2020 and is no longer a reporting segment after that date. As a result, it is now appropriate to report the identifiable assets relating to the remaining TEL production within Fuel Specialties from July 1, 2020. Our TEL operations historically produced TEL for automotive gasoline, which is reported in our Octane Additives segment for the years presented above, and for our AvTel product line, which is reported in our Fuel Specialties segment.
The Company includes within the corporate costs line item the costs of:
 
   
managing the Group as a company with securities listed on the NASDAQ and registered with the SEC;
 
   
the President/CEO’s office, group finance, group human resources, group legal and compliance counsel, and investor relations;
 
   
running the corporate offices in the U.S. and Europe;
 
   
the corporate development function since they do not relate to the current trading activities of our other reporting segments; and
 
   
the corporate share of the information technology, product technology, safety, health, environment, accounting and human resources departments.
The following tables analyze sales and other financial information by location:
 
(in millions)
  
2020
   
2019
   
2018
 
Net sales by source:
                        
United States & North America
   $ 642.4     $ 897.2     $ 803.1  
United Kingdom
     689.1       810.9       797.5  
Rest of Europe
     83.4       115.7       143.7  
Rest of World
     45.6       47.8       29.5  
Sales between areas
     (267.4     (358.3     (296.9
    
 
 
   
 
 
   
 
 
 
     $ 1,193.1     $ 1,513.3     $ 1,476.9  
    
 
 
   
 
 
   
 
 
 
Income before income taxes:
                        
United States & North America
   $ 0.0     $ 53.9     $ 37.1  
United Kingdom
     16.9       67.0       59.5  
Rest of Europe
     19.7       27.2       32.8  
Rest of World
     3.1       2.3       2.2  
    
 
 
   
 
 
   
 
 
 
     $ 39.7     $ 150.4     $ 131.6  
    
 
 
   
 
 
   
 
 
 
Long-lived assets at year end:
                        
United States & North America
   $ 141.0     $ 156.0     $ 148.6  
United Kingdom
     61.3       70.4       71.6  
Rest of Europe
     123.2       116.6       112.2  
Rest of World
     0.2       0.3       0.3  
    
 
 
   
 
 
   
 
 
 
     $ 325.7     $ 343.3     $ 332.7  
    
 
 
   
 
 
   
 
 
 
 
(in millions)
  
2020
 
  
2019
 
  
2018
 
Identifiable assets at year end:
                        
United States & North America
   $ 368.8     $ 419.5     $ 402.5  
United Kingdom
     455.8       487.2       504.7  
Rest of Europe
     171.0       163.2       173.1  
Rest of World
     30.6       35.9       28.2  
Goodwill
     371.2       363.0       364.9  
     $ 1,397.4     $ 1,468.8     $ 1,473.4  
Sales by geographical area are reported by source, being where the transactions originated. Intercompany sales are priced using an appropriate pricing methodology and are eliminated in the consolidated financial statements.
Identifiable assets are those directly associated with the operations of the geographical area.
Goodwill has not been allocated by geographical location on the grounds that it would be impracticable to do so.
v3.20.4
Earnings per Share
12 Months Ended
Dec. 31, 2020
Earnings Per Share [Abstract]  
Earnings per Share
Note 4.     Earnings per Share
Basic earnings per share is based on the weighted average number of common shares outstanding during the period. Diluted earnings per share includes the effect of options that are dilutive and outstanding during the period. Per share amounts are computed as follows:
 
    
2020
    
2019
    
2018
 
Numerator (in millions):
                          
Net income available to common stockholders
   $ 28.7      $ 112.2      $ 85.0  
    
 
 
    
 
 
    
 
 
 
Denominator (in thousands):
                          
Weighted average common shares outstanding
     24,563        24,482        24,401  
Dilutive effect of stock options and awards
     216        246        202  
    
 
 
    
 
 
    
 
 
 
Denominator for diluted earnings per share
     24,779        24,728        24,603  
    
 
 
    
 
 
    
 
 
 
Net income per share, basic:
   $ 1.17      $ 4.58      $ 3.48  
    
 
 
    
 
 
    
 
 
 
Net income per share, diluted:
   $ 1.16      $ 4.54      $ 3.45  
    
 
 
    
 
 
    
 
 
 
 
In 2020, 2019 and 2018 the average number
 
of anti-dilutive options excluded from the calculation of diluted earnings per share were
17,980, 6,270
and
0
respectively.
v3.20.4
Restructuring
12 Months Ended
Dec. 31, 2020
Restructuring Charges [Abstract]  
Restructuring
Note 5.     Restructuring
During 2020, the Company recorded
a charge
 of $21.3 million for the restructuring of its Octane Additives segment in line with the end of the manufacturing and sale of TEL for use in
motor gasoline. As a result, the Octane Additives segment ceased trading and is no longer a reporting segment from July 1, 2020. Production of TEL will continue for sales to the aviation market (“AvTel”), as reported within our Fuel Specialties segment.
The restructuring
charge
 comprise
s
the future committed costs of environmental monitoring of $2.0 million, remediation of facilities of $7.5 million, 
contract termination costs o
f
$7.2 million, impairment of tangible assets of $2.0 million and costs of redundancy due to the
down-sizing
 
of the TEL operations of $2.6 million. During the
year
ended
December 31
, 2020 the utilization 
and the unwinding of the discounting was not material.
v3.20.4
Property, Plant and Equipment
12 Months Ended
Dec. 31, 2020
Property, Plant and Equipment [Abstract]  
Property, Plant and Equipment
Note 6.     Property, Plant and Equipment
Property, plant and equipment consists of the following:
 
(in millions)
  
2020
   
2019
 
Land
   $ 21.6     $ 19.8  
Buildings
     65.5       60.0  
Equipment
     349.9       330.7  
Work in progress
     27.5       19.0  
    
 
 
   
 
 
 
       464.5       429.5  
Less accumulated depreciation and impairment
     (253.7     (230.8
    
 
 
   
 
 
 
     $ 210.8     $ 198.7  
    
 
 
   
 
 
 
Of the total net book value of equipment at December 31, 2020 $1.0 million (2019 – $1.8 million) are in respect of assets held under finance leases.
Depreciation charges were $24.7 million, $23.6 million and $22.6 million in 2020, 2019 and 2018, respectively.
An impairment charge of $2.0 million was incurred in
2020
as a result of the Octane Additives segment ceasing to trade on June 30, 2020.
v3.20.4
Leases
12 Months Ended
Dec. 31, 2020
Leases [Abstract]  
Leases
Note 7.     Leases
We have operating and finance leases for toll manufacturing facilities, warehouse storage, land, buildings, plant and equipment. Our leases have remaining lease terms of up to 10 years, some of which include options to terminate the leases within 1 year.
The components of lease expense were as follows:
 
(in millions)
  
Twelve Months
Ended December 31
    
Twelve Months
Ended December 31
 
    
2020
    
2019
 
Finance lease cost:
                 
Amortization of
right-of-use
assets
   $ 1.0      $ 1.7  
Interest on lease liabilities
     0.0        0.0  
    
 
 
    
 
 
 
Total finance lease cost
     1.0        1.7  
Operating lease cost
     12.8        12.1  
Short-term lease cost
     3.2        2.5  
Variable lease cost
     0.3        0.3  
    
 
 
    
 
 
 
Total lease cost
   $ 17.3      $ 16.6  
    
 
 
    
 
 
 
Supplemental cash flow information related to leases is as follows:
 
(in millions)
  
Twelve Months
Ended December 31
    
Twelve Months
Ended December 31
 
    
2020
    
2019
 
Cash paid for amounts included in the measurement of lease liabilities:
     
Operating cash flows from operating leases
   $ 15.9      $ 14.3  
Operating cash flows from finance leases
     1.2        2.1  
Finance cash flows from finance leases
     0.0        0.0  
Right-of-use
assets obtained in exchange for new lease obligations:
     
Operating leases
   $ 5.7      $ 4.3  
Finance leases
     0.0        0.0  
Supplemental balance sheet information related to leases is as follows:
 
(in millions except lease term and discount rate)
  
December 31
2020
 
 
December 31
2019
 
Operating leases:
                 
Operating lease
right-of-use
assets
   $ 40.1      $ 32.4  
    
 
 
    
 
 
 
Current portion of operating lease liabilities
   $ 11.3      $ 10.6  
Operating lease liabilities, net of current portion
     28.9        21.9  
    
 
 
    
 
 
 
Total operating lease liabilities
   $ 40.2      $ 32.5  
    
 
 
    
 
 
 
 
 
 
 
 
 
 
 
 
Finance leases:
                 
Property, plant and equipment at cost
   $ 9.0      $ 9.9  
Accumulated depreciation
     (8.0 )
 
 
 
     (8.1 )
 
 
 
    
 
 
    
 
 
 
Net property, plant and equipment
   $ 1.0    
$
1.8  
    
 
 
   
 
 
 
Current portion of finance leases
  
$
0.5    
$
1.0
 
Finance leases, net of current portion
     0.1      
0.5
 
    
 
 
   
 
 
 
Total finance lease liabilities
  
$
0.6    
$
1.5  
    
 
 
   
 
 
 
 
 
 
 
 
 
 
 
 
Weighted average remaining lease term:
                
Operating leases
     4.1 years       3.3
 years
 
Finance leases
     1.1 years       1.7
years
 
Weighted average discount rate:
                
Operating leases
     3.0     3.1
Finance leases
     2.6
    2.4
Maturities of lease liabilities were as follows as at December 31, 2020:
 
(in millions)
  
Operating
Leases
    
Finance
Leases
 
Within one year
   $ 11.4     
$
0.5  
Year two
     9.4        0.1  
Year three
     8.2        0.0  
Year four
     5.5        0.0  
Year five
     3.8        0.0  
Thereafter
     4.6        0.0  
    
 
 
    
 
 
 
Total lease payments
     42.9        0.6  
Less imputed interest
     (2.7      0.0  
    
 
 
    
 
 
 
Total
  
$
40.2     
$
0.6  
    
 
 
    
 
 
 
As of December 31, 2020, additional operating and finance leases that have not yet commenced are $
0.0
 million.
Future lease payment for all
non-cancellable
operating and finance leases as of December 31, 2019 were as follows:
 
(in millions)
  
Operating

Leases
    
Finance

Leases
 
Within one year
  
$
10.8     
$
1.1  
Year two
     9.1        0.4  
Year three
     5.8       
0.1
 
Year four
     4.4        0.0  
Year five
     2.1        0.0  
Thereafter
     2.5        0.0  
    
 
 
    
 
 
 
Total lease payments
     34.7        1.6  
Less imputed interest
     (2.2
     (0.1
    
 
 
    
 
 
 
Total
  
$
32.5     
$
1.5  
    
 
 
    
 
 
 
 
As of December 31, 2019, additional operating and finance leases that have not yet commenced are $
0.0
million. 
v3.20.4
Goodwill
12 Months Ended
Dec. 31, 2020
Goodwill and Intangible Assets Disclosure [Abstract]  
Goodwill
Note 8.    
Goodwill
The following table analyzes goodwill movement for 2020 and 2019.
 
(in millions)
  
Fuel
Specialties
   
Performance
Chemicals
   
Oilfield
Services
    
Octane
Additives
   
Total
 
At December 31, 2018
                                         
Gross cost
(1)
   $ 207.9    
$
112.2    
$
44.8     
$
236.5    
$
601.4  
Accumulated impairment losses
     0.0       0.0       0.0        (236.5     (236.5
    
 
 
   
 
 
   
 
 
    
 
 
   
 
 
 
Net book amount
  
$
207.9    
$
112.2    
$
44.8     
$
0.0    
$
364.9  
    
 
 
   
 
 
   
 
 
    
 
 
   
 
 
 
Exchange effect
     (0.2
    (1.7
    0.0        0.0       (1.9
At December 31, 2019
                                         
Gross cost
(1)
  
$
207.7    
$
110.5    
$
44.8     
$
236.5    
$
599.5  
Accumulated impairment losses
     0.0       0.0       0.0        (236.5
    (236.5
    
 
 
   
 
 
   
 
 
    
 
 
   
 
 
 
Net book amount
  
$
207.7    
$
110.5    
$
44.8     
$
0.0    
$
363.0  
    
 
 
   
 
 
   
 
 
    
 
 
   
 
 
 
Exchange effect
     0.2       8.0       0.0        0.0       8.2  
At December 31, 2020
                                         
Gross cost
(1)
  
$
207.9    
$
118.5    
$
44.8     
$
0.0    
$
371.2  
Accumulated impairment losses
     0.0       0.0       0.0        0.0       0.0  
    
 
 
   
 
 
   
 
 
    
 
 
   
 
 
 
Net book amount
  
$
207.9    
$
118.5    
$
44.8     
$
0.0    
$
371.2  
    
 
 
   
 
 
   
 
 
    
 
 
   
 
 
 
(1)
 
Gross cost is net of $8.7 million, $0.3 million and $289.5 million of historical accumulated amortization in respect of the Fuel Specialties, Performance Chemicals and Octane Additives reporting segments, respectively.
The Company’s reporting units, the level at which goodwill is tested for impairment, are consistent with the reportable segments: Fuel Specialties, Performance Chemicals and Oilfield Services. The Octane Additives segment has ceased trading and is no longer a reporting segment from July 1, 2020, as reported in our Quarterly Report on Form 10-Q for the quarter ended June 30, 2020. As a result the gross cost and the accumulated impairment losses have been written down to nil. 
The components in each segment (including products, markets and competitors) have similar economic characteristics and the segments, therefore, reflect the lowest level at which operations and cash flows can be clearly distinguished, operationally and for financial reporting purposes, from the rest of the Company.
The Company assesses goodwill for impairment on at least an annual basis, initially based on a qualitative assessment to determine whether it is more likely than not that the fair value of a segment is less than the carrying amount. If a potential impairment is identified then an impairment test is performed.
The Company performed its annual impairment assessment in respect of goodwill as at December 31, 2020, 2019 and 2018. Our impairment assessment concluded that there had been
no
 
 impairment of goodwill in respect of those reporting units. Due to the triggering events of the COVID-19 pandemic and the reduction in oil prices and their impact on our business, we performed a step one impairment review at June 30, 2020. The impairment assessment indicated the fair values substantially exceeded the carrying values for all operating segments. 
We believe that where appropriate the assumptions used in our impairment assessments are reasonable, but that they are judgmental, and variations in any of the assumptions may result in materially different calculations of any potential impairment charges.
v3.20.4
Other Intangible Assets
12 Months Ended
Dec. 31, 2020
Goodwill and Intangible Assets Disclosure [Abstract]  
Other Intangible Assets
 
Note 9.     Other Intangible Assets
Other intangible assets comprise the following:
 
(in millions)
  
2020
 
 
2019
Gross cost at January 1
  
$
294.8  
 
$
294.6
 
Additions
 
 
0.0
 
 
 
1.1
 
Exchange effect
  
 
4.1  
 
 
(0.9
Gross cost at December 31
  
 
298.9  
 
 
294.8
 
Accumulated amortization at January 1
  
 
(181.3
 
 
(158.3
Amortization expense
  
 
(20.9
 
 
(23.0
Impairment
  
 
(19.8
 
 
0.0
 
Exchange effect
  
 
(1.6
 
 
0.0
 
Accumulated amortization at December 31
  
 
(223.6
 
 
(181.3
Net book amount at December 31
  
$
75.3  
 
$
113.5
 
Amortization expense
The amortization expense was $20.9 million, $23.0 million and $26.3 million in 2020, 2019 and 2018, respectively. Excluding the impact of foreign exchange translation on the balance sheet, $2.9 million, $3.4 million and $3.4 million of amortization, respectively, was recognized in cost of goods sold, and the remainder was recognized in selling, general and administrative expenses.
During the quarter ended June 30, 2020, the Company performed an impairment review over the assets of each operating segment. This indicated the fair values substantially exceeded the carrying values for all operating segments. Further, the Company also performed an impairment review over each of the businesses within the Oilfield Services segment, as a result of reduction in demand for drilling related products. A discounted cash flow analysis was performed to determine the fair value of the assets. This indicated that the intangible assets arising from the acquisition of Strata Control Services Inc. were impaired. The impaired assets relate to technology ($10.0 million) and customer relationships ($9.8 million). There was no impairment indicated on the other businesses within the Oilfield Services operating segment.
The net book amount by category of other intangible assets is shown in the following table:
 
(in millions)
  
December 31

2020
    
December 31

2019
 
Product rights
   $ 6.3      $ 10.1  
Brand names
     2.3        2.9  
Technology
     19.8        32.6  
Customer relationships
     44.2        60.8  
Internally developed software
     2.7        7.1  
    
 
 
    
 
 
 
     $ 75.3      $ 113.5  
    
 
 
    
 
 
 
Future amortization expense is estimated to be as follows for the next five years:
 
(in millions)
      
2021
   $ 15.9  
2022
   $ 14.3  
2023
   $ 10.9  
2024
   $ 10.2  
2025
   $ 7.2  
v3.20.4
Pension and Post-Employment Benefits
12 Months Ended
Dec. 31, 2020
Retirement Benefits [Abstract]  
Pension and Post-Employment Benefits
Note 10.     Pension and Post-Employment Benefits
United Kingdom plan
The Company maintains a defined benefit pension plan (the “Plan”) covering a number of its current and former employees in the United Kingdom, although it does also have other much smaller pension arrangements in the U.S. and overseas. The Plan is closed to future service accrual but has a large number of deferred and current pensioners. The Projected Benefit Obligation (“PBO”) is based on final salary and years of credited service reduced by social security benefits according to a plan formula. Normal retirement age is 65 but provisions are made for early retirement. The Plan’s assets are invested by several investment management companies in funds holding United Kingdom and overseas equities, United Kingdom and overseas fixed interest securities, index linked securities, property unit trusts and cash or cash equivalents. The trustees’ investment policy is to seek to achieve specified objectives through investing in a suitable mixture of real and monetary assets. The trustees recognize that the returns on real assets, while expected to be greater over the long-term than those on monetary assets, are likely to be more volatile. A mixture across asset classes should nevertheless provide the level of returns required by the Plan to meet its liabilities at an acceptable level of risk for the trustees and an acceptable level of cost to the Company.
In 2020, the Company contributed $0.0 million (2019 – $0.4 million) in cash to the Plan in accordance with an agreement with the trustees.
The net service cost for the twelve months ended December 31, 2020 was $1.2 million (twelve months ended December 31, 2019 – $0.9 million and twelve months ended December 31, 2018 – 1.2 million) and has been recognized in selling, general and administrative expenses within corporate costs.
 
The following table shows the income statement effect recognized within other income, net:
 
(in millions)
  
2020
   
2019
   
2018
 
Plan net pension (credit)/charge:
                        
Interest cost on PBO
   $ 11.2     $ 15.2     $ 15.0  
Expected return on plan assets
     (17.8     (22.0     (22.2
Amortization of prior service credit
     (0.5     (0.9     (1.1
Amortization of actuarial net losses
     0.9       0.0       2.0  
    
 
 
   
 
 
   
 
 
 
     $ (6.2   $ (7.7   $ (6.3
    
 
 
   
 
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Plan assumptions at December 31, (%):
                        
Discount rate
     1.36       1.95       2.78  
Inflation rate
     2.35       2.25       2.25  
Rate of return on plan assets – overall on
bid-value
     2.00       2.50       3.05  
       
Plan asset allocation by category (%):
                        
Debt securities and insurance contracts
     86       86       83  
Equity securities and real estate
     10       10       12  
Cash
     4       4       5  
    
 
 
   
 
 
   
 
 
 
       100       100       100  
    
 
 
   
 
 
   
 
 
 
The discount rate used represents the annualized yield based on a cash flow matched methodology with reference to an AA corporate bond spot curve and having regard to the duration of the Plan’s liabilities. The model used to develop the discount rate for the year ending December 31, 2019 has been updated for the year ending December 31, 2020. Management’s experts have used the same data source as the prior year for the bond rate used to determine the discount rate, however this data source now uses inputs from a different range of categories of bonds. The impact of this change has resulted in an increase of 0.13% in the discount rate assumption, which has resulted in a reduction to the Pension Benefit Obligation of around $14 million.
The inflation rate is derived using a similar cash flow matched methodology as used for the discount rate but having regard to the difference between yields on fixed interest and index linked United Kingdom government gilts.
A 0.25%
change in the discount rate assumption would change the PBO at December 31, 2020 by approximately
 
$26 
million
and the net pension credit for 2021 would change by approximately
$0.4 million. A 0.25%
change in the level of price inflation assumption would change the PBO at December 31, 2020 by approximately
$19 
million and the net pension credit for 2021 by approximately
$1.2 million.
Movements in PBO and fair value of Plan assets are as follows:
 
(in millions)
  
2020
   
2019
 
Change in PBO:
                
Opening balance
   $ 701.0     $ 643.2  
Interest cost
     11.2       15.2  
Service cost
     1.2       0.9  
Benefits paid
     (45.5     (42.1
Plan amendments
     5.5       0.0  
Actuarial losses
     61.1       57.7  
Exchange effect
     24.2       26.1  
    
 
 
   
 
 
 
Closing balance
   $ 758.7     $ 701.0  
    
 
 
   
 
 
 
Fair value of plan assets:
                
Opening balance
   $ 816.9     $ 739.1  
Benefits paid
     (45.5     (42.1
Actual contributions by employer
     0.0       0.4  
Actual return on assets
     77.6       89.1  
Exchange effect
     27.7       30.4  
    
 
 
   
 
 
 
Closing balance
   $ 876.7     $ 816.9  
    
 
 
   
 
 
 
The current
investment
strategy of the
Plan
is to obtain an asset allocation of approximately 85% debt securities and insurance contracts and 15% equity securities and real estate in order to achieve a more predictable return on assets.
The Plan holds approximately 11% (December 31, 2019 – 12%) of the Plan’s assets in debt securities issued by
non-US
governments and government agencies. No more than 5% of the Plan’s assets were invested in any one individual company’s investment funds.
For the vast majority of assets, a market approach is adopted to assess the fair value of the assets, with the inputs being the quoted market prices for the actual securities held in the relevant fund.
Debt securities
Fixed income securities are valued based on quotations received from independent pricing services or from dealers who make markets in such securities and are classified as Level 1. Corporate debt securities are classified as Level 2 in line with the industry standard.
Equity backed securities
Common and preferred stock for which market prices are readily available at the measurement date are valued at the last reported sale price or official closing price on the primary market or
exchange on which they are actively traded. Other financial derivatives are classified as level 2 and certain investments that are measured at fair value using the net asset value per share (or its equivalent) have not been categorized with a hierarchy.
Other asset backed securities
The Company has invested in insurance contracts, known as
buy-in
contracts. The value of the insurance contract is based on significant unobservable inputs including plan participant medical data, in addition to observable inputs which include expected return on assets and estimated value premium. Therefore, we have classified the contracts as Level 3 investments. Fair value estimates are provided by external parties and are subsequently reviewed and approved by management.
The Company also invests in real estate as a low risk asset backed security, classified as Level 1.
The fair values of pension assets by level of input were as follows:
 
(in millions)
  
Quoted Prices
in Active
Markets for
Identical Assets
(Level 1)
    
Significant
Other
Observable
Inputs
(Level 2)
   
Significant
Unobservable
Inputs

(Level 3)
    
Total
 
At December 31, 2020
                                  
Debt securities
:
                                  
Debt securities issued by
non-U.S.
governments and government agencies
   $ 99.5      $       $        $ 99.5  
Corporate debt securities
              488.0                488.0  
Equity backed securities:
                                  
Other financial derivatives
              (2.3              (2.3
Investments measured at net asset
value
(1)
                               51.0  
Other asset backed securities:
                                  
Insurance contracts
                      167.4        167.4  
Real estate
     40.2                         40.2  
    
 
 
    
 
 
   
 
 
    
 
 
 
Total assets at fair value
     139.7        485.7       167.4        843.8  
Cash
     32.9                         32.9  
    
 
 
    
 
 
   
 
 
    
 
 
 
Total plan assets
   $ 172.6      $ 485.7     $ 167.4      $ 876.7  
    
 
 
    
 
 
   
 
 
    
 
 
 
 
(in millions)
  
Quoted Prices
in Active
Markets for
Identical Assets
(Level 1)
 
  
Significant
Other
Observable
Inputs
(Level 2)
 
 
Significant
Unobservable
Inputs
(Level 3)
 
  
Total
 
At December 31, 2019
  
     
  
     
 
     
  
     
Debt securities:
  
     
  
     
 
     
  
     
Debt securities issued by
non-U.S.
governments and government agencies
   $ 98.4      $       $        $ 98.4  
Corporate debt securities
              445.9                445.9  
Equity backed securities:
                                  
 
Other financial derivatives
              (3.7              (3.7
 
Investments measured at net asset value
(1)
                               46.8  
Other asset backed securities:
                                  
Insurance contracts
                      157.9        157.9  
Real estate
     41.7                         41.7  
    
 
 
    
 
 
   
 
 
    
 
 
 
Total assets at fair value
     140.1        442.2       157.9        787.0  
Cash
     29.9                         29.9  
    
 
 
    
 
 
   
 
 
    
 
 
 
Total plan assets
   $ 170.0      $ 442.2     $ 157.9      $ 816.9  
    
 
 
    
 
 
   
 
 
    
 
 
 
 
(1)
 
Certain investments that are measured at fair value using the net asset value per share (or its equivalent) have not been categorized in the fair value table with a hierarchy. The fair value amounts presented in this table are intended to permit reconciliation of the fair value hierarchy to the amounts presented in the statement of financial position.
The reconciliation of the fair value of the Plan assets measured using significant unobservable inputs was as follows:
 
(in millions)
  
Other

Assets
 
Balance at December 31, 2018
   $ 142.5  
    
 
 
 
Realized/unrealized gains/(losses):
        
Relating to assets still held at the reporting date
     16.0  
Purchases, issuances and settlements
     (6.5
Exchange effect
     5.9  
    
 
 
 
Balance at December 31, 2019
   $ 157.9  
    
 
 
 
Realized/unrealized gains/(losses):
        
Relating to assets still held at the reporting date
     10.8  
Purchases, issuances and settlements
     (6.6
Exchange effect
     5.3  
    
 
 
 
Balance at December 31, 2020
   $ 167.4  
    
 
 
 
The projected net service cost for the year ending December 31, 2021 is $1.6 million and will be recognized in selling, general and administrative expenses.
 
The following net pension credit will be recognized in other income and expense:
 
(in millions)
      
Interest cost on PBO
   $ 7.5  
Expected return on plan assets
     (15.4
Amortization of prior service credit
     0.3  
Amortization of actuarial net losses
     1.6  
    
 
 
 
     $ (6.0
    
 
 
 
In total, there will be a net pension credit of $4.4 million to the Innospec’s net income for the year ending December 31, 2021.
The following benefit payments are expected to be made:
 
(in millions)
      
2021
   $ 43.9  
2022
   $ 36.9  
2023
   $ 35.9  
2024
   $ 36.1  
2025
   $ 35.8  
2026-2030
   $ 172.0  
German plan
The Company also maintains an unfunded defined benefit pension plan covering a number of its current and former employees in Germany (the “German plan”). The German plan is closed to new entrants and has no assets.
The net service cost for the German plan for the twelve months ended December 31, 2020 was $0.1 million (twelve months ended December 31, 2019 – $0.1 million and twelve months ended December 31, 2018 – $0.2 million).
 
The following table shows the income statement effect recognized within other income and expense:
 
(in millions)
  
2020
    
2019
    
2018
 
Plan net pension charge:
                          
Interest cost on PBO
   $ 0.1      $ 0.2      $ 0.2  
Amortization of actuarial net loss
     0.8        0.3        0.4  
    
 
 
    
 
 
    
 
 
 
     $ 0.9      $ 0.5      $ 0.6  
Plan assumptions at December 31, (%):
                          
Discount rate
     0.40        0.80        1.90  
Inflation rate
     1.50        1.75        1.75  
Rate of increase in compensation levels
     2.75        2.75        2.75  
Movements in PBO of the German plan are as follows:
 
(in millions)
  
2020
   
2019
 
Change in PBO:
                
Opening balance
   $ 13.3     $ 11.3  
Service cost
     0.1       0.1  
Interest cost
     0.1       0.2  
Benefits paid
     (0.3     (0.3
Actuarial losses
     0.8       2.2  
Exchange effect
     1.2       (0.2
    
 
 
   
 
 
 
Closing balance
   $ 15.2     $ 13.3  
    
 
 
   
 
 
 
Other plans
As at December 31, 2020, we have post-employment obligations in our European businesses with a liability of $5.3 million (December 31, 2019 – $4.5 million). For the year ended December 31, 2020 we have recognized an actuarial loss of $0.2 million in other comprehensive loss in relation to the Performance Chemicals pension in France.
Company contributions to defined contribution schemes during 2020 were $10.3 million (2019 – $10.4 million).
v3.20.4
Income Taxes
12 Months Ended
Dec. 31, 2020
Income Tax Disclosure [Abstract]  
Income Taxes
Note 11.    Income Taxes
A roll-forward of unrecognized tax benefits and associated accrued interest and penalties is as follows:
 
(in millions)
  
Unrecognised

Tax Benefits
   
Interest
and
Penalties
   
Total
 
Opening balance at January 1, 2018
   $ 2.2     $ 0.3     $ 2.5  
Additions for tax positions of prior periods
     11.7       0.4       12.1  
Reductions due to lapsed statute of limitations
     (0.5     (0.1     (0.6
    
 
 
   
 
 
   
 
 
 
Closing balance at 31 December, 2018
     13.4       0.6       14.0  
Current
     0.0       0.0       0.0  
    
 
 
   
 
 
   
 
 
 
Non-current
   $ 13.4     $ 0.6     $ 14.0  
    
 
 
   
 
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Opening balance at January 1, 2019
   $ 13.4     $ 0.6     $ 14.0  
Additions for tax positions of prior periods
     1.0       1.4       2.4  
    
 
 
   
 
 
   
 
 
 
Closing balance at 31 December, 2019
     14.4       2.0       16.4  
Current
     0.0       0.0       0.0  
    
 
 
   
 
 
   
 
 
 
Non-current
   $ 14.4     $ 2.0     $ 16.4  
    
 
 
   
 
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Opening balance at January 1, 2020
   $ 14.4     $ 2.0     $ 16.4  
Reductions for tax positions of prior periods
     (1.2     (0.2     (1.4
Additions for tax positions of prior periods
     0.4       0.6       1.0  
    
 
 
   
 
 
   
 
 
 
Closing balance at 31 December, 2020
     13.6       2.4       16.0  
Current
     0.0       0.0       0.0  
    
 
 
   
 
 
   
 
 
 
Non-current
   $ 13.6     $ 2.4     $ 16.0  
    
 
 
   
 
 
   
 
 
 
All of the $16.0 million of unrecognised tax benefits would impact our effective tax rate if recognised.
As previously disclosed, a
non-US
subsidiary, Innospec Performance Chemicals Italia Srl , is subject to an ongoing tax audit in relation to the period 2011 to 2014 inclusive. The Company has determined that additional tax, interest and penalties totaling $3.4 million may arise as a consequence of the tax audit. This includes a reduction in interest accrued of $0.2 million and an increase for foreign exchange movements of $0.2 million recorded during 2020. As any additional tax arising as a consequence of the tax audit would be reimbursed by the previous owner under the terms of the sale and purchase agreement, an indemnification asset of the same amount is recorded in the financial statements to reflect this arrangement.
As previously disclosed, in 2018 the Company recorded an unrecognized tax benefit in relation to a potential adjustment that could arise as a consequence of the Tax Act, but for
which retrospective adjustment to the filed 2017 U.S. federal income tax returns was not permissible. The Company has determined that additional tax, interest and penalties totaling $12.4 million may arise in relation to this item. This includes an increase in interest accrued of $0.7 million during 2020.
As previously disclosed, in 2015 the Company recorded an unrecognized tax benefit of $1.2 million in relation to additional tax that could have arisen if a historical impairment in value of certain of the Company’s
non-U.S.
subsidiaries was reversed upon challenge by the tax authorities. During
2020, the Company released the provision of $1.2 million in full, together with accrued interest of $0.2 million thereon, following a review of the value of the Company’s investments that confirmed the historical impairment in value undertaken in 2005 was appropriate.
Other
non-significant
items, inclusive of interest and penalties, total $0.2 million.
The Company and its U.S. subsidiaries remain open to examination by the IRS for years 2017 onwards under the statute of limitations. The Company’s subsidiaries in foreign tax jurisdictions are open to examination including Spain (2016 onwards), France (2017 onwards), Germany (2018 onwards), Switzerland (2018 onwards) and the U.K. (2018 onwards).
The sources of income before income taxes were as follows:
 
(in millions)
  
2020
    
2019
    
2018
 
Domestic
   $ (0.7    $ 52.4      $ 37.1  
Foreign
     40.4        98.0        94.5  
    
 
 
    
 
 
    
 
 
 
     $ 39.7      $ 150.4      $ 131.6  
    
 
 
    
 
 
    
 
 
 
The components of income tax expense are summarized as follows:
 
(in millions)
  
2020
    
2019
    
2018
 
Current:
                          
Federal
   $ 6.1      $ 13.8      $ 12.5  
State and local
     0.5        2.3        2.0  
Foreign
     6.8        22.9        26.6  
    
 
 
    
 
 
    
 
 
 
       13.4        39.0        41.1  
    
 
 
    
 
 
    
 
 
 
Deferred:
                          
Federal
     (2.8      (3.0      4.2  
State and local
     (0.4      (0.5      0.3  
Foreign
     0.8        2.7        1.0  
    
 
 
    
 
 
    
 
 
 
       (2.4      (0.8      5.5  
    
 
 
    
 
 
    
 
 
 
     $ 11.0      $ 38.2      $ 46.6  
    
 
 
    
 
 
    
 
 
 
Cash payments for income taxes were $23.4 million, $37.6 million and $35.4 million during 2020, 2019 and 2018, respectively.
The effective tax rate varies from the U.S. federal statutory rate because of the factors indicated below:
 
(in percent)
  
2020
   
2019
   
2018
 
Statutory rate
     21.0     21.0     21.0
Foreign income inclusions
     7.1       0.3       0.7  
Foreign tax rate differential
     4.2       (0.3     (0.8
Tax charge/(credit) from previous
years
     3.7       1.8       0.7  
Net charge/(credit) from
unrecognized tax benefits
     (1.7     1.1       0.3  
Foreign currency transactions
     (4.5     (1.0     1.2  
Effect of U.S. tax law change
     0.0       0.6       9.3  
Tax on unremitted earnings
     0.3       (0.1     0.9  
Non-deductible
foreign interest
     0.7       0.8       1.3  
Change in UK statutory tax rate
     6.9       0.0       0.0  
State and local taxes
     1.5       1.4       1.2  
US incentive for foreign derived intangible income
     (1.5     (0.5     (1.0
Innovation incentives – current year
     (4.9     (0.6     (0.6
Innovation incentives – prior years
     (5.3     0.0       0.0  
Non-deductible
officer compensation
     1.8       0.2       0.4  
Other items and adjustments, net
     (1.6     0.7       0.8  
    
 
 
   
 
 
   
 
 
 
       27.7     25.4     35.4
    
 
 
   
 
 
   
 
 
 
The mix of taxable profits generated in the different geographical jurisdictions in which the Group operates continues to have a significant impact on the effective tax rate. In 2020, a significant proportion of the Group’s profits were generated by
non-U.S.
subsidiaries located in higher tax jurisdictions, which negatively impacted on the tax rate.
Foreign income inclusions arise each year from certain types of income earned overseas being taxable under U.S. tax regulations. Foreign tax credits can fully or partially offset these incremental U.S. taxes from foreign income inclusions. The utilization of foreign tax credits varies year on year as this is dependent on a number of variable factors which are difficult to predict and may prevent offset. The effective tax rate is negatively impacted by the net impact of foreign inclusions post foreign tax credit usage in 2020.
The 2020 effective tax rate was negatively impacted by the change in tax estimates for 2019 when compared to finalized positions as determined for the purpose of filing tax returns.
An increase in the enacted income tax rate in the UK on the Company’s deferred tax liabilities, which increased the 2020 tax charge by $2.7 million, had a negative impact on the effective tax rate.
The effective tax was also positively impacted by increased claims for innovation reliefs in the UK and the US. This reduced the tax charge in 2020 by $4.0 million.
As a consequence of the Company having
operations
outside of the U.S., it is exposed to foreign currency fluctuations. These have a positive effect on the effective tax rate in 2020.
Other items do not have a material impact on the effective tax rate.
Details of deferred tax assets and liabilities are
analyzed
as follows:
 
(in millions)
  
2020
    
2019
 
Deferred tax assets:
                 
Stock compensation
   $ 5.3      $ 6.7  
Net operating loss carry forwards
     9.8        7.3  
Other intangible assets
     10.6        6.0  
Accretion expense
     3.2        3.3  
Restructuring provision
     1.4        0.0  
Foreign tax credits
     2.0        3.6  
Operating lease liabilities
 
 
9.2
 
 
 
7.4
 
Other
     6.9        5.9  
    
 
 
    
 
 
 
Subtotal
     48.4        40.2  
Less valuation allowance
     (1.1      (0.8
    
 
 
    
 
 
 
Total net deferred tax assets
   $ 47.3      $ 39.4  
    
 
 
    
 
 
 
Deferred tax liabilities:
                 
Property, plant and equipment
   $ (21.3    $ (19.5
Intangible assets including goodwill
     (28.3      (28.1
Pension asset
     (20.5      (18.2
Investment impairment recapture
     0.0        (1.0
Customer relationships
     (4.4      (4.2
Unremitted overseas earnings
     (2.0      (1.0
Right-of-use assets
 
 
(9.2
 
 
(7.4
Other
     (0.9      (0.5
    
 
 
    
 
 
 
Total deferred tax liabilities
   $ (86.6    $ (79.9
    
 
 
    
 
 
 
Net deferred tax liability
   $ (39.3    $ (40.5
    
 
 
    
 
 
 
Deferred tax assets
   $ 7.6      $ 9.1  
Deferred tax liabilities
     (46.9      (49.6
    
 
 
    
 
 
 
     $ (39.3    $ (40.5
    
 
 
    
 
 
 
The Company assesses the available positive and negative evidence to estimate whether sufficient future taxable income will be generated to permit use of the existing deferred tax assets. A significant piece of objective negative evidence evaluated was the cumulative losses incurred in certain jurisdictions over the three-year period ended December 31, 2020. Such objective evidence limits the ability to consider other subjective evidence, such as our projections for future growth. On the basis of this evaluation, as of December 31, 2020, a valuation allowance of $1.1 million has been recorded to recognise only the portion of the deferred tax asset that is more likely than not to be realized. The amount of the deferred tax asset considered realizable, however, could be adjusted if estimates of future taxable income during the carry forward period are reduced or increased or if objective negative evidence in the form of cumulative losses is no longer present and additional weight is given to subjective evidence such as our projections for growth.
Gross net operating loss carry forwards of $67.1 million result in a deferred tax asset of $8.7 million, net of valuation allowances. The net operating loss carry forwards arose in the U.S. and in five of the Company’s foreign subsidiaries. Net operating loss carry forwards of $36.5 million arose in the U.S. It is expected that sufficient taxable profits will be generated in the U.S. against which $10.7 million of State net operating loss carry forwards can be relieved before their expiration in the period 2031 to 2040. The remaining U.S. State net operating losses and all U.S. Federal net operating losses can be carried forward indefinitely without expiration. Net operating loss carry forwards of $30.6 million arose in five of the Company’s foreign
subsidiaries, of which $1.3 million were generated in 2020
.
It is expected that sufficient taxable profits will be generated against which $24.4
 million of these net operating loss carry forwards can be relieved. These losses can be carried forward indefinitely without expiration.
v3.20.4
Long-Term Debt
12 Months Ended
Dec. 31, 2020
Debt Disclosure [Abstract]  
Long-Term Debt
Note 12.    Long-Term Debt
Long-term debt consists of the following:
 
(in millions)
  
2020
    
2019
 
Revolving credit facility
   $ 0.0      $ 60.0  
Term loan
     0.0        0.0  
Deferred finance costs
     0.0        (1.4
    
 
 
    
 
 
 
       0.0        58.6  
Less current portion
     0.0        0.0  
    
 
 
    
 
 
 
     $ 0.0      $ 58.6  
    
 
 
    
 
 
 
As at December 31, 2020, the Company had repaid all of its borrowings under the revolving credit facility and as a result, the related deferred finance costs of $1.3 million are now included within other
current and 
non-current
assets at the balance sheet date.
On September 16, 2020, Innospec and certain of its subsidiaries agreed to extend the term of its revolving credit facility, as described below, until September 25, 2024. The costs of $0.3 million for extending the term have been capitalized on the balance sheet, which are being amortized over the expected life of the facility.
On September 30, 2019 the Company repaid its
pre-existing
term loan and revolving credit facility that had been amended and restated on December 14, 2016, and replaced this borrowing with the current credit facility, as described below. As a result, refinancing costs of $1.5 million were capitalized which are being amortized over the expected life of the facility.
On September 26, 2019, Innospec and certain of its subsidiaries entered into a new agreement for a $250.0 million revolving credit facility until September 25, 2023 with an option to request an extension to the facility for a further year. The facility also contains an accordion feature whereby the Company may elect to increase the total available borrowings by an aggregate amount of up to $125.0 million.
 
(in millions)
  
2020
    
2019
 
Gross cost at January 1
   $ 1.5      $ 2.7  
Capitalized in the year
     0.3        1.5  
Written down in the year
     0.0        (2.7
    
 
 
    
 
 
 
       1.8        1.5  
    
 
 
    
 
 
 
Accumulated amortization at January 1
   $ (0.1    $ (1.8
Amortization in the year
     (0.4      (1.0
Amortization written down in the year
     0.0        2.7  
    
 
 
    
 
 
 
     $ (0.5    $ (0.1
    
 
 
    
 
 
 
Net book value at December 31
   $ 1.3      $ 1.4  
    
 
 
    
 
 
 
 
Amortization expense was $0.4 million, $1.0 million and $0.7 million in 2020, 2019 and 2018, respectively. The charge is included in interest expense, see Note 2 of the Notes to the Consolidated Financial Statements.
The obligations of the Company under the credit facility are secured obligations and guaranteed by certain subsidiaries of the Company. Amounts available under the revolving facility may be borrowed in U.S. dollars, Euros, British pounds and other freely convertible currencies.
The Company’s credit facility contains restrictive clauses which may constrain our activities and limit our operational and financial flexibility. The facility obliges the lenders to comply with a request for utilization of finance unless there is an event of default outstanding. Events of default are defined in the credit facility and include a material adverse change to our assets, operations or financial condition. The facility contains a number of restrictions that limit our
ability, amongst other things, and subject to certain limited exceptions, to incur additional indebtedness, pledge our assets as security, guarantee obligations of third parties, make investments, undergo a merger or consolidation, dispose of assets, or materially change our line of business.
In addition, the credit facility contains terms which, if breached, would result in it becoming repayable on demand. It requires, among other matters, compliance with the following financial covenant ratios measured on a quarterly basis: (1) the ratio of net debt to EBITDA shall not be greater than 3.0:1 and (2) the ratio of EBITDA to net interest shall not be less than 4.0:1. Management has determined that the Company has not breached these covenants throughout the period to December 31, 2020 and does not expect to breach these covenants for the next 12 months.
The weighted average rate of interest on borrowings was 2.20% at December 31, 2020 and 3.14% at December 31, 2019. Payments of interest on long-term debt were $0.8 million, $4.8 million and $6.5 million in 2020, 2019 and 2018, respectively.
 
The net cash outflows in respect of refinancing costs were $0.3 million, $1.5 million and $0.0 million in 2020, 2019 and 2018, respectively.
v3.20.4
Plant Closure Provisions
12 Months Ended
Dec. 31, 2020
Restructuring and Related Activities [Abstract]  
Plant Closure Provisions
Note 13.    Plant Closure Provisions
The Company has continuing plans to close some of its manufacturing facilities at sites around the world as and when those operations are expected to be decommissioned. The liability for estimated closure costs of Innospec’s manufacturing facilities includes costs for decontamination and environmental remediation activities (“remediation”).
As a result, the principal site giving rise to remediation liabilities is the manufacturing site at Ellesmere Port in the United Kingdom, which management believes is the last ongoing manufacturer of TEL. There are also remediation liabilities on a much smaller scale in respect of our other manufacturing sites in the U.S. and Europe.
Movements in the provisions are summarized as follows:
 
(in millions)
  
2020
   
2019
   
2018
 
Total at January 1
   $ 49.3     $ 49.5     $ 46.1  
Charge for the period excluding restructuring
     5.1       4.4       6.8  
Restructuring (see Note 5)
     7.5       0.0       0.0  
Utilized in the period
     (4.1     (4.4     (3.1
Exchange effect
     0.7       (0.2     (0.3
Total at December 31
     58.5       49.3       49.5  
Due within one year
     (6.6     (5.6     (5.9
    
 
 
   
 
 
   
 
 
 
Due after one year
   $ 51.9     $ 43.7     $ 43.6  
    
 
 
   
 
 
   
 
 
 
 
Amounts due within one year refer to provisions where expenditure is expected to arise within one year of the balance sheet date. Remediation costs are recognized in cost of goods sold.
 
The provisions for remediation represent the Company’s liability for environmental liabilities and asset retirement obligations. The charge for the period in 2020 represents the accretion expense recognized of $3.7 million and a further $1.4 million primarily in respect of changes in the expected cost and scope of future remediation activities.
The Octane Additives segment ceased trading and is no longer a reporting segment from July 1, 2020. As a result, there has been a
one-off
charge of $7.5 million for the restructuring activities related to the legacy production of TEL for use in motor gasoline.
We recognize environmental liabilities when they are probable and costs can be reasonably estimated, and asset retirement obligations when there is a legal obligation and costs can be reasonably estimated. The Company has to anticipate the program of work required and the associated future expected costs, and comply with environmental legislation in the countries in which it operates or has operated in.
 
Remediation expenditure utilized provisions of $4.1 million, $4.4 million and $3.1 million in 2020, 2019 and 2018, respectively.
v3.20.4
Fair Value Measurements
12 Months Ended
Dec. 31, 2020
Fair Value Disclosures [Abstract]  
Fair Value Measurements
Note 14.    Fair Value Measurements​​​​​​​
Fair value is the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date (exit price). The Company utilizes a
mid-market
pricing convention for valuing the majority of its assets and liabilities measured and reported at fair value. The Company utilizes market data or assumptions that market participants would use in pricing the asset or liability, including assumptions about risk and the risks inherent in the inputs to the valuation technique. These inputs can be readily observable, market corroborated or generally unobservable. The Company primarily applies the market approach for recurring fair value measurements and endeavors to utilize the best available information. Accordingly, the Company utilizes valuation techniques that maximize the use of observable inputs and minimize the use of unobservable inputs. The Company is able to classify fair value balances based on the observability of those inputs. The Company gives the highest priority to unadjusted quoted prices in active markets for identical assets or liabilities (Level 1 measurement) and the lowest priority to unobservable inputs (Level 3 measurement). Financial assets and liabilities are classified in their entirety based on the lowest level of input that is significant to the fair value measurement. The Company’s assessment of the significance of a particular input to the fair value measurement requires judgment and may affect the valuation of fair value assets and liabilities and their placement within the fair value hierarchy Levels. In 2019, the Company evaluated the fair value hierarchy levels assigned to its assets and liabilities, and concluded that there should be no transfers into or out of Levels 1, 2 and 3.
The following table presents the carrying amount and fair values of the Company’s assets and liabilities measured on a recurring basis:
 
    
December 31, 2020
    
December 31, 2019
 
(in millions)
  
Carrying

Amount
    
Fair

Value
    
Carrying

Amount
    
Fair

Value
 
Assets
                                   
Non-derivatives:
                                   
Cash and cash equivalents
   $ 105.3      $ 105.3      $ 75.7      $ 75.7  
Derivatives (Level 1 measurement):
                                   
Other current and
non-current
assets:
                                   
Foreign currency forward exchange contracts
     0.0        0.0        0.8        0.8  
Liabilities
                                   
Non-derivatives:
                                   
Long-term debt (including current portion)
   $ 0.0      $ 0.0      $ 58.6      $ 58.6  
Finance leases (including current portion)
     0.6        0.6        1.5        1.5  
Derivatives (Level 1 measurement):
                                   
Other
 
current
liabilities:
                                   
Foreign currency forward exchange contracts
     0.5        0.5        0.0        0.0  
Non-financial
liabilities (Level 3 measurement):
                                   
Stock equivalent units
     17.2        17.2        24.6        24.6  
The following methods and assumptions were used to estimate the fair values:
Cash and cash equivalents:
The carrying amount approximates fair value because of the short-term maturities of such instruments.
Long-term debt and finance leases:
Long-term debt principally comprises the revolving credit facility, which is shown net of deferred finance costs that have been capitalized. The fair value of long-term debt approximates to the carrying value. Finance leases relate to certain fixed assets in our Fuel Specialties and Oilfield Services segments. The carrying amount of long-term debt and finance leases approximates to the fair value.
Derivatives:
The fair value of derivatives relating to foreign currency forward exchange contracts and interest rate swaps are derived from current settlement prices and comparable contracts using current assumptions. Foreign currency forward exchange contracts primarily relate to contracts entered into to hedge future known transactions or hedge balance sheet net cash positions. The movements in the carrying amounts and fair values of these contracts are largely due to changes in exchange rates against the U.S. dollar. Interest rate swaps in the prior year related to contracts taken out to hedge interest rate risk on a portion of our long-term debt.
Stock equivalent units:
The fair values of stock equivalent units are calculated at each balance sheet date using either the Black-Scholes or Monte Carlo method.
v3.20.4
Derivative Instruments and Risk Management
12 Months Ended
Dec. 31, 2020
Derivative Instruments and Hedging Activities Disclosure [Abstract]  
Derivative Instruments and Risk Management
Note 15.    Derivative Instruments and Risk Management
The Company has limited involvement with derivative instruments and does not trade them. The Company does use derivatives to manage certain interest rate, foreign currency exchange rate and raw material cost exposures, as the need arises.
The Company previously entered into interest rate swap contracts to reduce interest rate risk on its core debt. As at December 31, 2020 and at December 31, 2019, there were no interest rate swaps in place with all swaps having been settled during 2019. Interest rate swaps were previously in place to hedge interest rate risk on the term loan for a notional value that matched the repayment profile of the term loan. The interest rate swaps in the prior years were designated as hedging instruments, and their impact on other comprehensive loss for 2019 was a loss of $1.9 million.
The Company enters into various foreign currency forward exchange contracts to minimize currency exchange rate exposure from expected future cash flows. As at December 31, 2020, foreign currency forward exchange contracts with a notional value of $127.2 million were in place (December 31, 2019 $108.9 million), with maturity dates of up to one year from the date of inception. These foreign currency forward exchange contracts have not been designated as hedging instruments, and their impact on the income statement for 2020 was a loss of $1.5 million (2019 – gain $1.5 million).
As at December 31, 2020 and December 31, 2019 the Company did not hold any raw material derivatives.
The Company sells a range of specialty chemicals to major oil refiners and chemical companies throughout the world. Credit limits, ongoing credit evaluation and account monitoring procedures are intended to minimize bad debt risk. Collateral is not generally required.
v3.20.4
Commitments and Contingencies
12 Months Ended
Dec. 31, 2020
Commitments and Contingencies Disclosure [Abstract]  
Commitments and Contingencies
Note 16.    Commitments and Contingencies
Environmental remediation obligations
Commitments in respect of environmental remediation obligations are disclosed in Note
13
 of the Notes to the Consolidated Financial Statements.
Capital commitments
The estimated additional cost to complete work in progress at December 31, 2020 is $14.7 million (2019 – $4.0 million).
Contingencies
Legal matters
While we are involved from time to time in claims and legal proceedings that result from, and are incidental to, the conduct of our business including business and commercial litigation, employee and product liability claims, there are no material pending legal proceedings to which the Company or any of its subsidiaries is a party, or of which any of their property is subject. It is possible however, that an adverse resolution of an unexpectedly large number of such individual items could in the aggregate have a material adverse effect on results of operations for a particular year or quarter.
Guarantees
The Company and certain of the Company’s consolidated subsidiaries are contingently liable for certain obligations of affiliated companies primarily in the form of guarantees of debt and performance under contracts entered into as a normal business practice. This includes guarantees of
non-U.S.
excise taxes and customs duties. As at December 31, 2020, such guarantees which are not recognized as liabilities in the consolidated financial statements amounted to $9.9 million (December 31, 2019 – $4.7 million). The remaining terms of the fixed maturity guarantees vary from 1 month to 3 years, with some further guarantees having no fixed expiry date.
Under the terms of the guarantee arrangements, generally the Company would be required to perform should the affiliated company fail to fulfill its obligations under the arrangements. In some cases, the guarantee arrangements have recourse provisions that would enable the Company to recover any payments made under the terms of the guarantees from securities held of the guaranteed parties’ assets.
The Company and its affiliates have numerous long-term sales and purchase commitments in their various business activities, which are expected to be fulfilled with no adverse consequences material to the Company.
v3.20.4
Stockholders' Equity
12 Months Ended
Dec. 31, 2020
Equity [Abstract]  
Stockholders' Equity
Note 17.    Stockholders’ Equity
 
    
Common Stock
    
Treasury Stock
 
(number of shares in thousands)
  
2020
    
2019
    
2018
    
2020
   
2019
   
2018
 
At January 1
     29,554.5        29,554.5        29,554.5        5,047       5,121       5,204  
Exercise of options
     0        0        0        (109     (104     (103
Stock purchases
     0        0        0        21       30       20  
    
 
 
    
 
 
    
 
 
    
 
 
   
 
 
   
 
 
 
At December 31
     29,554.5        29,554.5        29,554.5        4,959       5,047       5,121  
    
 
 
    
 
 
    
 
 
    
 
 
   
 
 
   
 
 
 
At December 31, 2020, the Company had authorized common stock of 40,000,000 shares (2019 – 40,000,000).
v3.20.4
Stock-Based Compensation Plans
12 Months Ended
Dec. 31, 2020
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]  
Stock-Based Compensation Plans
Note 18.    Stock-Based Compensation Plans
Stock option plans
The Company has two stock option plans, the Omnibus Long-Term Incentive Plan and the ShareSave Plan 2008 under which it currently grants awards. The stock options have vesting periods ranging from 2 to 5 years and in all cases stock options granted expire within 10 years of the date of grant. All grants are at the sole discretion of the Compensation Committee of the Board of Directors. Grants may be priced at market value or at a premium or discount. The aggregate number of shares of common stock reserved for issuance which can be granted under the plans is 2,550,000.
In the fourth quarter of 2020, a number of stock options that were granted to 14 employees in February 2018 were modified to extend the vesting period by two years. The incremental compensation cost resulting from the modifications was $2.4 million, resulting from the performance targets that were not achieved in 2020 being extended to a future period.
The fair value of stock options is measured on the grant date using either the Black-Scholes model, or in cases where performance criteria are dependent upon external factors such as the Company’s stock price, using a Monte Carlo model. The following weighted average assumptions were used to determine the grant-date fair value of options:
 
    
2020
   
2019
   
2018
 
Dividend yield
     1.18     1.09     1.11
Expected life
     5 years       5 years       5 years  
Volatility
     27.0     26.8     25.6
Risk free interest rate
     1.13     2.48     2.74
The following table summarizes the transactions of the Company’s stock option plans for the year ended December 31, 2020:
 
    
Number of
Options
   
Weighted
Average
Exercise
Price
    
Weighted
Average

Grant-Date

Fair Value
 
Outstanding at December 31, 2019
     504,459     $ 33.05      $ 41.35  
Granted – at discount
     63,950     $ 1.11      $ 76.80  
      – at market value
     10,419     $ 95.70      $ 18.69  
Exercised
     (108,518   $ 20.31      $ 45.17  
Forfeited
     (27,417   $ 41.93      $ 36.41  
    
 
 
                  
Outstanding at December 31, 2020
     442,893     $ 32.49      $ 45.31  
    
 
 
                  
At December 31, 2020, there were 42,657 stock options that were exercisable, 15,611 had performance conditions attached.
The Company’s policy is to issue shares from treasury stock to holders of stock options who exercise those options, but if sufficient treasury stock is not available, the Company will issue previously unissued shares of stock to holders of stock options who exercise options.
The stock option compensation cost for 2020, 2019 and 2018 was $5.8 million, $6.6 million and $4.9 million, respectively. The total intrinsic value of options exercised in 2020, 2019 and 2018 was $4.9 million, $3.5 million and $3.2 million, respectively.
The total compensation cost related to
non-vested
stock options not yet recognized at December 31, 2020 was $6.8 million and this cost is expected to be recognized over the weighted-average period of 1.59 years.
In 2020, the Company recorded a current tax benefit of $1.6 million in respect of stock option compensation (2019 – $1.5 million). This amount is inclusive of excess tax benefits.
Forfeits are accounted for as an adjustment to the charge in the period in which the forfeits occur.
Stock equivalent units
The Company awards Stock Equivalent Units (“SEUs”) from time to time as a long-term performance incentive. SEUs are cash settled equity instruments conditional on certain performance criteria and linked to the Innospec Inc. share price. SEUs have vesting periods ranging from 2 to 5 years and in all cases SEUs granted expire within 10 years of the date of grant. Grants may be priced at market value or at a premium or discount. There is no limit to the number of SEUs that can be granted. As at December 31, 2020 the liability for SEUs of $17.2 million is included in accrued liabilities in the consolidated balance sheets until they are cash settled.
In the fourth quarter of 2020, a number of SEUs that were granted to 61 employees in February 2018 were modified to extend the vesting period by two years.
 
The adjusted compensation cost resulting from the modifications has been recognised by the fair valuation at the balance sheet date based on the extended vesting period.
The fair value of SEUs is measured at the balance sheet date using either the Black-Scholes model, or in cases where performance criteria are dependent upon external factors such as the Company’s stock price, using a Monte Carlo model. The following assumptions were used to determine the fair value of SEUs at the balance sheet dates:
 
    
2020
   
2019
   
2018
 
Dividend yield
     1.15     0.99     1.44
Expected life
     5 years       5 years       5 years  
Volatility
     39.9     26.6     27.2
Risk free interest rate
     0.17     1.62     2.46
The following table summarizes the transactions of the Company’s SEUs for the year ended December 31, 2020:
 
    
Number
of SEUs
   
Weighted
Average
Exercise
Price
    
Weighted
Average
Grant-Date

Fair Value
 
Outstanding at December 31, 2019
     390,816     $ 3.69      $ 59.91  
Granted – at discount
     113,107     $ 0.00      $ 76.63  
      – at market value
     3,634     $ 95.70      $ 18.69  
Exercised
     (93,057   $ 0.82      $ 60.04  
Forfeited
     (24,336   $ 0.60      $ 65.99  
    
 
 
                  
Outstanding at December 31, 2020
     390,164     $ 4.35      $ 63.96  
    
 
 
                  
At December 31, 2020, there were 53,146 SEUs that were exercisable, 46,614 had performance conditions attached.
The charges for SEUs are spread over the life of the award subject to a revaluation to fair value each quarter. The revaluation may result in a charge or a credit to the income statement in the quarter dependent upon our share price and other performance criteria.
The SEU compensation cost for 2020, 2019 and 2018 was $1.9 million, $20.1 million and $5.7 million, respectively. The total intrinsic value of SEUs exercised in 2020, 2019 and 2018 was $6.3 million, $7.3 million and $2.7 million, respectively.
The weighted-average remaining vesting period of
non-vested
SEUs is 1.98 years.
Forfeits are accounted for as an adjustment to the charge in the period in which the forfeits occur.
v3.20.4
Reclassifications out of Accumulated Other Comprehensive Loss
12 Months Ended
Dec. 31, 2020
Equity [Abstract]  
Reclassifications out of Accumulated Other Comprehensive Loss
Note 19.    Reclassifications out of Accumulated Other Comprehensive Loss
Reclassifications out of accumulated other comprehensive loss for 2020 were:
 
(in millions)
  
Amount
Reclassified
from AOCL
   
Affected Line Item in the
Statement where
Net
 
Income is Presented
Details about AOCL Components
Defined benefit pension plan items:
            
Amortization of prior service credit
   $ (0.5   See (1) below
Amortization of actuarial net losses
     1.7     See (1) below
    
 
 
     
       1.2     Total before tax
       (0.1   Income tax expense
    
 
 
     
Total reclassifications
   $ 1.1     Net of tax
    
 
 
     
 
(1)
  
These items are included in the computation of net periodic pension cost. See Note 9 of the Notes to the Consolidated Financial Statements for additional information.
Changes in accumulated other comprehensive loss for 2020, net of tax, were:
 
(in millions)
  
Defined
Benefit
Pension
Plan Items
   
Cumulative
Translation
Adjustments
   
Total
 
Balance at December 31, 2019
   $ (9.3   $ (65.1   $ (74.4
    
 
 
   
 
 
   
 
 
 
Other comprehensive income before reclassifications
     0.0       23.7       23.7  
Amounts reclassified from AOCL
     1.1       0.0       1.1  
Actuarial net gains arising during the year
     (7.7     0.0       (7.7
    
 
 
   
 
 
   
 
 
 
Net current period other comprehensive income
     (6.6     23.7       17.1  
    
 
 
   
 
 
   
 
 
 
Balance at December 31, 2020
   $ (15.9   $ (41.4   $ (57.3
    
 
 
   
 
 
   
 
 
 
v3.20.4
Recently Issued Accounting Pronouncements
12 Months Ended
Dec. 31, 2020
Accounting Changes and Error Corrections [Abstract]  
Recently Issued Accounting Pronouncements
Note 20.    Recently Issued Accounting Pronouncements
In December 2019, the Financial Accounting Standards Board issued Accounting Standards Update (ASU)
No. 2019-12,
Simplifying the Accounting for Income Taxes (Topic 740). This removes certain exceptions to the general principles in Topic 740 and improves consistent application of and simplifies GAAP for other areas of Topic 740 by clarifying and amending existing guidance. This ASU is effective for fiscal years beginning after December 15, 2020, and interim periods within those fiscal years, with early adoption permitted. The Company will be applying this ASU from January 1, 2021. We are currently evaluating the impact of adopting this new accounting guidance on our consolidated financial statements, including accounting policies, processes and systems, but we do not expect adoption will have a material impact on the Company’s disclosures.
v3.20.4
Related Party Transactions
12 Months Ended
Dec. 31, 2020
Related Party Transactions [Abstract]  
Related Party Transactions
Note 21.    Related Party Transactions
Mr. Patrick S. Williams has been an executive director of the Company since April 2009 and has been a
non-executive
director of AdvanSix, a chemicals manufacturer, since February 2020. In 2020 the Company purchased product from AdvanSix for $
0.3
 million. As at December 31, 2020, the Company owed $
0.0
 million to AdvanSix.
Mr. Robert I. Paller has been a
non-executive
director of the Company since November 1, 2009. The Company has retained and continues to retain Smith, Gambrell & Russell, LLP (“SGR”), a law firm with which Mr. Paller holds a position. In 2020, 2019 and 2018 the Company incurred fees payable to SGR of $
0.8
 million, $
0.5
 million and $
0.3
 million, respectively. As at December 31, 2020 the Company owed $
0.1
 million to SGR
 
(December 31, 2019 – $0.0 million). 
Mr. David F. Landless has been a
non-executive
director of the Company since January 1, 2016 and is a
non-executive
director of Ausurus Group Limited which owns European Metal Recycling Limited (“EMR”). The Company has sold scrap metal to EMR in 2020 for a value of $
0.2
 million (2019 – $
0.4
 million; 2018 – $
0.3
million). A tendering process is operated periodically to select the best buyer for the sale of scrap metal by the Company. As at December 31, 2020 EMR owed $
0.0
 million (December 31, 2019 – $
0.0
million).
v3.20.4
Subsequent Events
12 Months Ended
Dec. 31, 2020
Subsequent Events [Abstract]  
Subsequent Events
Note 22.    Subsequent Events
The Company has evaluated subsequent events through the date that the consolidated financial statements were issued, and has concluded that no additional disclosures are required in relation to events subsequent to the balance sheet date.
 
v3.20.4
Accounting Policies (Policies)
12 Months Ended
Dec. 31, 2020
Accounting Policies [Abstract]  
Basis of preparation
Basis of preparation:
The consolidated financial statements have been prepared in accordance with generally accepted accounting principles (“GAAP”) in the United States of America on a going concern basis and include all subsidiaries of the Company where the Company has a controlling financial interest. All significant intercompany accounts and balances have been eliminated upon consolidation. In accordance with GAAP in the United States of America, the results of operations of an acquired or disposed business are included or excluded from the consolidated financial statements from the date of acquisition or disposal.
Use of estimates
Use of estimates:
The preparation of the consolidated financial statements, in accordance with GAAP in the United States of America, requires management to make estimates and assumptions that affect the amounts reported in the consolidated financial statements and accompanying notes. Actual results could differ from those estimates.
Revenue recognition
Revenue recognition:
Our revenues are primarily derived from the manufacture and sale of specialty chemicals. We recognize revenue when control of the product is transferred to our customer and for an amount that reflects the consideration we expect to collect from the customer. Control is generally transferred to the customer when title transfers (which may include physical possession by the customer), we have a right to payment from the customer, the customer has accepted the product, and the customer has assumed the risks and rewards of ownership. We have supplier managed inventory arrangements with some of our customers to facilitate
on-demand
product availability. In some cases, the inventory resides at a customer site, although title has not transferred, we are not entitled to payment, and we have not invoiced for the product. We have evaluated the contract terms under these arrangements and have determined that control transfers when the customer uses the product, at which time
revenue is recognized. Our contracts generally include one performance obligation, which is providing specialty chemicals. The performance obligation is satisfied at a point in time when products are shipped, delivered, or consumed by the customer, depending on the underlying contracts.
While some of our customers have payment terms beyond 30 days, we do not provide extended payment terms of a year or more, nor do our contracts include a financing component. Some of our contracts include variable consideration in the form of rebates. We record rebates at the point of sale as a reduction in sales when we can reasonably estimate the amount of the rebate. The estimates are based on our best judgment at the time of sale, which includes anticipated as well as historical performance.
 
Taxes assessed by a governmental authority which are concurrent with sales to our customers, including sales, use, value-added, and revenue-related excise taxes, are collected by us from the customer and are not included in net sales, but are reflected in accrued liabilities until remitted to the appropriate governmental authority. When we are responsible for shipping and handling costs after title has transferred, we account for those as fulfilment costs and include them in cost of goods sold.
Components of net sales
Components of net sales:
All amounts billed to customers relating to shipping and handling are classified as net sales. Shipping and handling costs incurred by the Company are classified as cost of goods sold.
Components of cost of goods sold
Components of cost of goods sold:
Cost of goods sold is comprised of raw material costs including inbound freight, duty and
non-recoverable
taxes, inbound handling costs associated with the receipt of raw materials, packaging materials, manufacturing costs including labor costs, maintenance and utility costs, plant and engineering overheads, amortization expense for certain other intangible assets, warehousing and outbound shipping costs and handling costs. Inventory losses and provisions and the costs of customer claims are also recognized in the cost of goods line item.
Components of selling, general and administrative expenses
Components of selling, general and administrative expenses:
Selling expenses comprise the costs of the direct sales force, and the sales management and customer service departments required to support them. It also comprises commission charges, the costs of sales conferences and trade shows, the cost of advertising and promotions, amortization expense for certain other intangible assets, and the cost of bad and doubtful debts. General and administrative expenses comprise the cost of support functions including accounting, human resources, information technology and the cost of group functions including corporate management, finance, tax, treasury, investor relations and legal departments. Provision of management’s best estimate of legal and settlement costs for litigation in which the Company is involved is accounted for in the administrative expense line item.
Research and development expenses
Research and development expenses:
Research, development and testing costs are expensed to the income statement as incurred.
Earnings per share
Earnings per share:
Basic earnings per share is based on the weighted average number of common shares outstanding during the period. Diluted earnings per share includes the effect of options that are dilutive and outstanding during the period.
Foreign currencies
Foreign currencies:
The Company’s policy is that foreign exchange differences arising on the translation of the balance sheets of entities that have functional currencies other than the U.S. dollar are taken to a separate equity reserve, the cumulative translation adjustment. In entities where the U.S. dollar is the functional currency no gains or losses on translation occur, and gains or losses on monetary assets relating to currencies other than the U.S. dollar are taken to the income statement in other income/(expense), net. Gains and losses on intercompany foreign currency loans which are long-term in nature, which the Company does not intend to settle in the foreseeable future, are also recorded in accumulated other comprehensive loss. Other foreign exchange gains or losses are also included in other income, net in the income statement.
Stock-based compensation plans
Stock-based compensation plans:
The Company accounts for employee stock options and stock equivalent units under the fair value method. Stock options are fair valued at the grant date and the fair value is recognized straight-line over the vesting period of the option. Stock equivalent units are fair valued at each balance sheet date and the fair value is spread over the remaining vesting period of the unit.
Business combinations
Business combinations:
The acquisition method of accounting requires that we recognize the assets acquired and liabilities assumed at their acquisition date fair values. Goodwill is measured as the excess of consideration transferred over the acquisition date net fair values of the assets acquired and the liabilities assumed.
The determination of the fair values of certain assets and liabilities are usually based on significant estimates provided by management, such as forecast revenue or profit. In determining the fair value of intangible assets, an income approach is generally used and may incorporate the use of a discounted cash flow method. In applying the discounted cash flow method, the estimated future cash flows and residual values for each intangible asset are discounted to a present value using a discount rate appropriate to the business being acquired. These cash flow projections are based on management’s estimates of economic and market conditions including revenue growth rates, operating margins, capital expenditures and working capital requirements.
Cash equivalents
Cash equivalents:
Investment securities with maturities of three months or less when purchased are considered to be cash equivalents.
Trade and other accounts receivable
Trade and other accounts receivable:
The Company records trade and other accounts receivable at net realizable value and maintains allowances for customers not making required
payments. The Company determines the adequacy of allowances by periodically evaluating each customer receivable considering our customer’s financial condition, credit history and current economic conditions.
Credit losses:
With an effective date of January 1, 2020, we have applied Accounting Standards Update (ASU)
No. 2016-13,
Financial Instruments – Credit Losses (ASC Topic 326). This replaces the incurred loss impairment methodology under previous GAAP with a methodology that reflects expected credit losses and requires consideration of a broader range of reasonable and supportable information to inform credit loss estimates.
The standard was adopted using prospective application and principally impacts the allowance for trade and other accounts receivables. Upon adoption, there was no adjustment made to opening retained earnings as at January 1, 2020. As a result of implementing the standard, the Company did not recognize any material change to the allowance within trade and other accounts receivable as at January 1, 2020. Trade and other accounts receivable are shown net of a $4.5 million allowance at 
December 31
, 2020. The allowance remains immaterial to the financial statements.
The Company is exposed to credit losses primarily through sales of products. The Company’s expected loss allowance methodology for trade and other accounts receivable is developed using historical collection experience, current and future economic and market conditions and a review of the current status of customers’ receivables. Due to the short-term nature of such receivables, the estimate of accounts receivable amounts that may not be collected is based on aging of the accounts receivable balances and the financial condition of customers. Additionally, a further allowance is included to account for the Company’s historic track record of credit losses, for balances which are not aged sufficiently to be considered under the aging based approach.
The Company considered the current and expected future economic and market conditions surrounding the
COVID-19
pandemic and determined that the estimate of credit losses was not significantly impacted.
Inventories:
Inventories are stated at the lower of cost (FIFO method) or market value.
Cost
includes materials, labor and an appropriate proportion of plant overheads. The Company accrues volume discounts where it is probable that the required volume will be attained and the amount can be reasonably estimated. The discounts are recorded as a reduction in the cost of materials based on projected purchases over the period of the agreement. Inventories are adjusted for estimated obsolescence and written down to market value based on estimates of future demand and market conditions.
Property, plant and equipment:
Property, plant and equipment are stated at cost less accumulated depreciation. Depreciation is provided over the estimated useful lives of the assets using the straight-line method and is allocated between cost of goods sold and operating
Credit losses
Credit losses:
With an effective date of January 1, 2020, we have applied Accounting Standards Update (ASU)
No. 2016-13,
Financial Instruments – Credit Losses (ASC Topic 326). This replaces the incurred loss impairment methodology under previous GAAP with a methodology that reflects expected credit losses and requires consideration of a broader range of reasonable and supportable information to inform credit loss estimates.
The standard was adopted using prospective application and principally impacts the allowance for trade and other accounts receivables. Upon adoption, there was no adjustment made to opening retained earnings as at January 1, 2020. As a result of implementing the standard, the Company did not recognize any material change to the allowance within trade and other accounts receivable as at January 1, 2020. Trade and other accounts receivable are shown net of a $4.5 million allowance at 
December 31
, 2020. The allowance remains immaterial to the financial statements.
The Company is exposed to credit losses primarily through sales of products. The Company’s expected loss allowance methodology for trade and other accounts receivable is developed using historical collection experience, current and future economic and market conditions and a review of the current status of customers’ receivables. Due to the short-term nature of such receivables, the estimate of accounts receivable amounts that may not be collected is based on aging of the accounts receivable balances and the financial condition of customers. Additionally, a further allowance is included to account for the Company’s historic track record of credit losses, for balances which are not aged sufficiently to be considered under the aging based approach.
The Company considered the current and expected future economic and market conditions surrounding the
COVID-19
pandemic and determined that the estimate of credit losses was not significantly impacted.
Inventories
Inventories:
Inventories are stated at the lower of cost (FIFO method) or market value.
Cost
includes materials, labor and an appropriate proportion of plant overheads. The Company accrues volume discounts where it is probable that the required volume will be attained and the amount can be reasonably estimated. The discounts are recorded as a reduction in the cost of materials based on projected purchases over the period of the agreement. Inventories are adjusted for estimated obsolescence and written down to market value based on estimates of future demand and market conditions.
Property, plant and equipment
Property, plant and equipment:
Property, plant and equipment are stated at cost less accumulated depreciation. Depreciation is provided over the estimated useful lives of the assets using the straight-line method and is allocated between cost of goods sold and operating
expenses. The cost of additions and improvements are capitalized. Maintenance and repairs are charged to expenses as incurred. When assets are sold or retired the associated cost and accumulated depreciation are removed from the consolidated financial statements and any related gain or loss is included in earnings. The estimated useful lives of the major classes of depreciable assets are as follows:
 
Buildings
     7
 
to 25
 
years
 
Equipment
     3 to 10
 
years
 
Goodwill and other intangible assets
Goodwill:
Goodwill is deemed to have an indefinite life and is subject to at least annual impairment assessments at the reporting unit level. The Company considers that its reporting units are consistent with its reportable segments. The components in each segment (including products, markets and competitors) have similar economic characteristics and the segments, therefore, reflect the lowest level at which operations and cash flows can be sufficiently distinguished, operationally and for financial reporting purposes, from the rest of the Company.
Initially we perform a qualitative assessment to determine whether it is more likely than not (that is, a likelihood of more than 50 percent) that the fair value of a segment is less than the carrying amount prior to performing a quantitative goodwill impairment test. The annual measurement date for impairment assessment of the goodwill relating to the Fuel Specialties, Performance Chemicals and Oilfield Services segments is December 31 each year. Factors utilized in the qualitative assessment process include macroeconomic conditions, industry and market considerations, cost factors, overall financial performance and Company specific events.
If a quantitative test is required, we assess the fair value based on projected
post-tax
cash flows discounted at the Company’s weighted average cost of capital. These fair value techniques require management judgment and estimates including revenue growth rates, projected operating margins, changes in working capital and discount rates. We would develop these assumptions by considering recent financial performance and industry growth estimates.
O
ther intangible assets:
Other intangible assets are deemed to have finite lives and are amortized using the straight-line method over their estimated useful lives. The Company capitalizes software development costs as intangible assets, including licenses, subsequent to the establishment of technological feasibility. These assets are tested for potential impairment when events occur or circumstances change, which suggest an impairment may have occurred.
In order to facilitate testing for potential impairment the Company groups together assets at the lowest possible level for which cash flow information is available. Undiscounted future cash flows expected to result from the asset groups are compared with the carrying value of the assets and, if such cash flows are lower, an impairment loss may be recognized. The amount of the impairment loss is the difference between the fair value and the carrying value
of the assets. Fair values are determined using
post-tax
cash flows discounted at the Company’s weighted average cost of capital. If events occur or circumstances change it may cause a reduction in the periods over which the assets are amortized, or result in a
non-cash
impairment of their carrying value. A reduction in the amortization periods would have no impact on cash flows.
The estimated useful lives of the major classes of assets are as follows:
 
Technology
     10
 
to 17
 
years
 
Customer lists
     10
 
to 15
 
years
 
Brand names
     5
 
to 10
 
years
 
Product rights
     9
 
to 10
 
years
 
Internally developed software
     3 to 5
 
years
 
Marketing related
     11 years  
Leases
Leases:
With an effective date of January 1, 2019 we have applied Accounting Standards Update (ASU)
2016-02,
Revision to Lease Accounting, ASC Topic 842 which replaces ASC Topic 840, Leases. ASU
2016-02
requires lessees to recognize a
right-of-use
(“ROU”) asset and a lease liability for all of their leases (other than leases that meet the definition of a short-term lease).
The standard was adopted using a modified retrospective transition method, with the Company electing not to adjust comparative periods. We have taken the election not to apply the requirements to short-term leases and have taken the election not to separate related
non-lease
components from lease components.
The standard had a material impact on our consolidated balance sheet as at December 31, 2019, but did not have an impact on our consolidated income statements. The most significant impact was the recognition of ROU assets and lease liabilities and the related deferred taxes thereon for operating leases, while our accounting for finance leases remained substantially unchanged. Operating lease liabilities recognized under the new standard are not considered to be debt.
We determine if an arrangement is a lease at inception. The present value of the future lease payments for operating leases is included in operating lease ROU assets, and operating lease liabilities (current and
non-current)
on our consolidated balance sheet at December 31, 2020. The carrying value of assets under finance leases is included in property, plant and equipment and finance lease liabilities (current and
non-current)
on our consolidated balance sheet at December 31, 2020.
Operating lease ROU assets and operating lease liabilities are recognized based on the present value of future lease payments over the remaining lease term. Very few of our leases have renewal options or early termination break clauses, but where they do we have assessed the
term of the lease based on any options being exercised only if they are reasonably certain. As most of our leases do not provide an implicit interest rate, we use our incremental borrowing rate based on the information available at point of recognition in determining the present value of future payments.
The operating lease ROU asset excludes lease incentives and initial direct costs incurred. Lease expense for lease payments is recognized on a straight-line basis over the lease term unless payments are variable per the agreement. Where we have lease payments linked to an index or inflationary rate, this rate has been used to value the asset and liability at the inception of the lease. If the payments are not linked to a specific index or inflationary rate, but can vary during the term of the agreement, they have been included at their actual value for each future period.    In some circumstances the future expected payments may be dependent on other factors, for example production volumes, in which case we have used the minimum future expected payments to value the asset.
We do not recognize a ROU asset or operating lease liability for short-term leases (with a length of one year or less), and any associated cost is recognized, as incurred, through the income statement.
Deferred finance costs
Deferred finance costs:
The costs relating to debt financing are capitalized are amortized using the effective interest method over the expected life of the debt financing facility. The amortization charge is included in interest expense in the income statement.
Impairment of long-lived assets
Impairment of long-lived assets:
The Company reviews the carrying value of its long-lived assets, including buildings and equipment, whenever changes in circumstances suggest that the carrying values may be impaired. In order to facilitate this test the Company groups together assets at the lowest possible level for which cash flow information is available. Undiscounted future cash flows expected to result from the asset groups are compared with the carrying value of the asset groups and if they are lower an impairment loss may be recognized. The amount of the impairment loss is the difference between the fair value and the carrying value of the asset groups. Fair values are determined using
post-tax
cash flows discounted at the Company’s weighted average cost of capital.
Derivative instruments
Derivative instruments:
From time to time,
the Company uses various derivative instruments including forward currency contracts, options, interest rate swaps and commodity swaps to manage certain exposures. These instruments are entered into under the Company’s corporate risk management policy to minimize exposure and are not for speculative trading purposes. The Company recognizes all derivatives as either current or
non-current
assets or liabilities in the consolidated balance sheet and measures those instruments at fair value. Changes in the fair value of derivatives that are not designated as hedges, or do not meet the requirements for hedge accounting, are recognized in earnings. Derivatives which are designated as hedges are tested for effectiveness on a quarterly basis, and marked to market. The ineffective portion of the derivative’s change in value is recognized in earnings. The effective portion is recognized in other comprehensive income until the hedged item is recognized in earnings.
Environmental compliance and remediation
Environmental compliance and remediation:
Environmental compliance costs include ongoing maintenance, monitoring and similar costs. We recognize environmental liabilities when they are probable and the costs can be reasonably estimated, and asset retirement obligations when there is a legal obligation and the costs can be reasonably estimated. The vast majority of our plant closure provision relates to our Ellesmere Port site in the United Kingdom.
The Company must comply with environmental legislation in the countries in which it operates or has operated in and annually reassesses the program of work required. This includes estimating the credit-adjusted risk free rate and the timing and cost of performing the remediation work. Management use specialists to develop these estimates and assumptions utilizing the latest information available together with experience of recent costs. While we believe our assumptions for environmental liabilities are reasonable, they are subjective judgements and it is possible that variations in any of the assumptions will result in materially different calculations to the liabilities we have reported. Costs of future obligations are discounted to their present values using the Company’s credit-adjusted risk-free rate.
Pension plans and other post-employment benefits
Pension plans and other post-employment benefits:
The Company recognizes the funded status of defined benefit post-retirement plans on the consolidated balance sheets and changes in the funded status in comprehensive income. The measurement date of the plan’s funded status is the same as the Company’s fiscal
year-end.
The service costs are recognized as employees render the services necessary to earn the post-employment benefits. Prior service costs and credits and actuarial gains and losses are amortized over the average remaining life expectancy of the inactive participants using the corridor method.
Movements in the underlying plan asset value and Projected Benefit Obligation (“PBO”) are dependent on actual return on investments as well as our assumptions in respect of the discount rate, annual member mortality rates, future return on assets and future inflation.
Income taxes
Income taxes:
The Company provides for income taxes by recognizing deferred tax assets and liabilities for the expected future tax consequences of temporary differences between the financial statement carrying amounts and the relevant tax bases of the assets and liabilities. The Company then evaluates the need for a valuation allowance to reduce deferred tax assets to the amount more likely than not to be realized. The effect on deferred taxes of a change in tax rates is recognized in the period that includes the enactment date. The Company recognizes the tax benefit from a tax position only if it is more likely than not that the tax position will be sustained on examination by the taxing authorities, based on the technical merits of the position. The tax benefits recognized in the financial statements from such positions are then measured based on the largest benefit that has a greater than 50% likelihood of being realized upon settlement. Changes in recognition or measurement are reflected in the period in which the change in judgment occurs. The Company recognizes accrued interest and penalties associated with unrecognized tax benefits as part of income taxes in our consolidated statements of income.
v3.20.4
Accounting Policies (Tables)
12 Months Ended
Dec. 31, 2020
Accounting Policies [Abstract]  
Estimated Useful Lives of Major Classes of Depreciable Assets The estimated useful lives of the major classes of depreciable assets are as follows:
 
Buildings
     7
 
to 25
 
years
 
Equipment
     3 to 10
 
years
 
Estimated Useful Lives of Major Classes of Assets The estimated useful lives of the major classes of assets are as follows:
 
Technology
     10
 
to 17
 
years
 
Customer lists
     10
 
to 15
 
years
 
Brand names
     5
 
to 10
 
years
 
Product rights
     9
 
to 10
 
years
 
Internally developed software
     3 to 5
 
years
 
Marketing related
     11 years  
v3.20.4
Segment Reporting and Geographical Area Data (Tables)
12 Months Ended
Dec. 31, 2020
Segment Reporting [Abstract]  
Segment Reporting
The Company evaluates the performance of its segments based on operating income. The following table analyzes sales and other financial information by the Company’s reportable segments:
 
(in millions)
  
2020
    
2019
    
2018
 
Net Sales:
                          
Refinery and Performance
   $ 372.9      $ 427.9      $ 432.1  
Other
     139.8        155.8        142.4  
    
 
 
    
 
 
    
 
 
 
Fuel Specialties
     512.7        583.7        574.5  
    
 
 
    
 
 
    
 
 
 
Personal Care
     231.4        228.0        241.4  
Home Care
     87.0        93.4        109.1  
Other
     107.0        107.3        117.6  
    
 
 
    
 
 
    
 
 
 
Performance Chemicals
     425.4        428.7        468.1  
    
 
 
    
 
 
    
 
 
 
Oilfield Services
     255.0        479.9        400.6  
Octane Additives
     0.0        21.0        33.7  
    
 
 
    
 
 
    
 
 
 
     $ 1,193.1      $ 1,513.3      $ 1,476.9  
    
 
 
    
 
 
    
 
 
 
 
(in millions)
  
2020
   
2019
   
2018
 
Gross profit:
                        
Fuel Specialties
   $ 160.3     $ 204.5     $ 195.0  
Performance Chemicals
     103.8       100.1       97.5  
Oilfield Services
     80.8       159.9       130.4  
Octane Additives
     (2.2     1.7       12.1  
    
 
 
   
 
 
   
 
 
 
     $ 342.7     $ 466.2     $ 435.0  
    
 
 
   
 
 
   
 
 
 
Operating income/(expense):
                        
Fuel Specialties
   $ 84.5     $ 116.6     $ 116.3  
Performance Chemicals
     54.8       48.7       44.7  
Oilfield Services
     (9.5     39.7       22.1  
Octane Additives
     (2.8     (0.7     9.9  
Corporate costs
     (52.2     (54.4     (52.4
Restructuring charge
     (21.3     0.0       (7.1
Impairment of intangible assets
     (19.8     0.0       0.0  
    
 
 
   
 
 
   
 
 
 
Total operating income
   $ 33.7     $ 149.9     $ 133.5  
    
 
 
   
 
 
   
 
 
 
Identifiable assets at year end:
                        
Fuel Specialties
   $ 509.7     $ 499.7     $ 470.5  
Performance Chemicals
     391.5       383.3       463.9  
Oilfield Services
     210.8       316.8       296.1  
Octane Additives
     0.0       24.2       39.6  
Corporate
     285.4       244.8       203.3  
    
 
 
   
 
 
   
 
 
 
     $ 1,397.4     $ 1,468.8     $ 1,473.4  
    
 
 
   
 
 
   
 
 
 
Summary of Segment Depreciation and Amortization
The following tables analyze sales and other financial information by location:
 
(in millions)
  
2020
   
2019
   
2018
 
Net sales by source:
                        
United States & North America
   $ 642.4     $ 897.2     $ 803.1  
United Kingdom
     689.1       810.9       797.5  
Rest of Europe
     83.4       115.7       143.7  
Rest of World
     45.6       47.8       29.5  
Sales between areas
     (267.4     (358.3     (296.9
    
 
 
   
 
 
   
 
 
 
     $ 1,193.1     $ 1,513.3     $ 1,476.9  
    
 
 
   
 
 
   
 
 
 
Income before income taxes:
                        
United States & North America
   $ 0.0     $ 53.9     $ 37.1  
United Kingdom
     16.9       67.0       59.5  
Rest of Europe
     19.7       27.2       32.8  
Rest of World
     3.1       2.3       2.2  
    
 
 
   
 
 
   
 
 
 
     $ 39.7     $ 150.4     $ 131.6  
    
 
 
   
 
 
   
 
 
 
Long-lived assets at year end:
                        
United States & North America
   $ 141.0     $ 156.0     $ 148.6  
United Kingdom
     61.3       70.4       71.6  
Rest of Europe
     123.2       116.6       112.2  
Rest of World
     0.2       0.3       0.3  
    
 
 
   
 
 
   
 
 
 
     $ 325.7     $ 343.3     $ 332.7  
    
 
 
   
 
 
   
 
 
 
 
(in millions)
  
2020
 
  
2019
 
  
2018
 
Identifiable assets at year end:
                        
United States & North America
   $ 368.8     $ 419.5     $ 402.5  
United Kingdom
     455.8       487.2       504.7  
Rest of Europe
     171.0       163.2       173.1  
Rest of World
     30.6       35.9       28.2  
Goodwill
     371.2       363.0       364.9  
     $ 1,397.4     $ 1,468.8     $ 1,473.4  
v3.20.4
Earnings per Share (Tables)
12 Months Ended
Dec. 31, 2020
Earnings Per Share [Abstract]  
Summary of Earnings Per Share Per share amounts are computed as follows:
 
    
2020
    
2019
    
2018
 
Numerator (in millions):
                          
Net income available to common stockholders
   $ 28.7      $ 112.2      $ 85.0  
    
 
 
    
 
 
    
 
 
 
Denominator (in thousands):
                          
Weighted average common shares outstanding
     24,563        24,482        24,401  
Dilutive effect of stock options and awards
     216        246        202  
    
 
 
    
 
 
    
 
 
 
Denominator for diluted earnings per share
     24,779        24,728        24,603  
    
 
 
    
 
 
    
 
 
 
Net income per share, basic:
   $ 1.17      $ 4.58      $ 3.48  
    
 
 
    
 
 
    
 
 
 
Net income per share, diluted:
   $ 1.16      $ 4.54      $ 3.45  
    
 
 
    
 
 
    
 
 
 
v3.20.4
Property, Plant and Equipment (Tables)
12 Months Ended
Dec. 31, 2020
Property, Plant and Equipment [Abstract]  
Schedule of Property, Plant and Equipment
Property, plant and equipment consists of the following:
 
(in millions)
  
2020
   
2019
 
Land
   $ 21.6     $ 19.8  
Buildings
     65.5       60.0  
Equipment
     349.9       330.7  
Work in progress
     27.5       19.0  
    
 
 
   
 
 
 
       464.5       429.5  
Less accumulated depreciation and impairment
     (253.7     (230.8
    
 
 
   
 
 
 
     $ 210.8     $ 198.7  
    
 
 
   
 
 
 
v3.20.4
Leases (Tables)
12 Months Ended
Dec. 31, 2020
Leases [Abstract]  
Components of Lease Expense
The components of lease expense were as follows:
 
(in millions)
  
Twelve Months
Ended December 31
    
Twelve Months
Ended December 31
 
    
2020
    
2019
 
Finance lease cost:
                 
Amortization of
right-of-use
assets
   $ 1.0      $ 1.7  
Interest on lease liabilities
     0.0        0.0  
    
 
 
    
 
 
 
Total finance lease cost
     1.0        1.7  
Operating lease cost
     12.8        12.1  
Short-term lease cost
     3.2        2.5  
Variable lease cost
     0.3        0.3  
    
 
 
    
 
 
 
Total lease cost
   $ 17.3      $ 16.6  
    
 
 
    
 
 
 
Supplemental Cash Flow Information Related to Leases
Supplemental cash flow information related to leases is as follows:
 
(in millions)
  
Twelve Months
Ended December 31
    
Twelve Months
Ended December 31
 
    
2020
    
2019
 
Cash paid for amounts included in the measurement of lease liabilities:
     
Operating cash flows from operating leases
   $ 15.9      $ 14.3  
Operating cash flows from finance leases
     1.2        2.1  
Finance cash flows from finance leases
     0.0        0.0  
Right-of-use
assets obtained in exchange for new lease obligations:
     
Operating leases
   $ 5.7      $ 4.3  
Finance leases
     0.0        0.0  
Supplemental Balance Sheet Information Related to Leases
Supplemental balance sheet information related to leases is as follows:
 
(in millions except lease term and discount rate)
  
December 31
2020
 
 
December 31
2019
 
Operating leases:
                 
Operating lease
right-of-use
assets
   $ 40.1      $ 32.4  
    
 
 
    
 
 
 
Current portion of operating lease liabilities
   $ 11.3      $ 10.6  
Operating lease liabilities, net of current portion
     28.9        21.9  
    
 
 
    
 
 
 
Total operating lease liabilities
   $ 40.2      $ 32.5  
    
 
 
    
 
 
 
 
 
 
 
 
 
 
 
 
Finance leases:
                 
Property, plant and equipment at cost
   $ 9.0      $ 9.9  
Accumulated depreciation
     (8.0 )
 
 
 
     (8.1 )
 
 
 
    
 
 
    
 
 
 
Net property, plant and equipment
   $ 1.0    
$
1.8  
    
 
 
   
 
 
 
Current portion of finance leases
  
$
0.5    
$
1.0
 
Finance leases, net of current portion
     0.1      
0.5
 
    
 
 
   
 
 
 
Total finance lease liabilities
  
$
0.6    
$
1.5  
    
 
 
   
 
 
 
 
 
 
 
 
 
 
 
 
Weighted average remaining lease term:
                
Operating leases
     4.1 years       3.3
 years
 
Finance leases
     1.1 years       1.7
years
 
Weighted average discount rate:
                
Operating leases
     3.0     3.1
Finance leases
     2.6
    2.4
Maturities of Lease Liabilities
Maturities of lease liabilities were as follows as at December 31, 2020:
 
(in millions)
  
Operating
Leases
    
Finance
Leases
 
Within one year
   $ 11.4     
$
0.5  
Year two
     9.4        0.1  
Year three
     8.2        0.0  
Year four
     5.5        0.0  
Year five
     3.8        0.0  
Thereafter
     4.6        0.0  
    
 
 
    
 
 
 
Total lease payments
     42.9        0.6  
Less imputed interest
     (2.7      0.0  
    
 
 
    
 
 
 
Total
  
$
40.2     
$
0.6  
    
 
 
    
 
 
 
As of December 31, 2020, additional operating and finance leases that have not yet commenced are $
0.0
 million.
Future lease payment for all
non-cancellable
operating and finance leases as of December 31, 2019 were as follows:
 
(in millions)
  
Operating

Leases
    
Finance

Leases
 
Within one year
  
$
10.8     
$
1.1  
Year two
     9.1        0.4  
Year three
     5.8       
0.1
 
Year four
     4.4        0.0  
Year five
     2.1        0.0  
Thereafter
     2.5        0.0  
    
 
 
    
 
 
 
Total lease payments
     34.7        1.6  
Less imputed interest
     (2.2
     (0.1
    
 
 
    
 
 
 
Total
  
$
32.5     
$
1.5  
    
 
 
    
 
 
 
v3.20.4
Goodwill (Tables)
12 Months Ended
Dec. 31, 2020
Goodwill and Intangible Assets Disclosure [Abstract]  
Summary of Goodwill
The following table analyzes goodwill movement for 2020 and 2019.
 
(in millions)
  
Fuel
Specialties
   
Performance
Chemicals
   
Oilfield
Services
    
Octane
Additives
   
Total
 
At December 31, 2018
                                         
Gross cost
(1)
   $ 207.9    
$
112.2    
$
44.8     
$
236.5    
$
601.4  
Accumulated impairment losses
     0.0       0.0       0.0        (236.5     (236.5
    
 
 
   
 
 
   
 
 
    
 
 
   
 
 
 
Net book amount
  
$
207.9    
$
112.2    
$
44.8     
$
0.0    
$
364.9  
    
 
 
   
 
 
   
 
 
    
 
 
   
 
 
 
Exchange effect
     (0.2
    (1.7
    0.0        0.0       (1.9
At December 31, 2019
                                         
Gross cost
(1)
  
$
207.7    
$
110.5    
$
44.8     
$
236.5    
$
599.5  
Accumulated impairment losses
     0.0       0.0       0.0        (236.5
    (236.5
    
 
 
   
 
 
   
 
 
    
 
 
   
 
 
 
Net book amount
  
$
207.7    
$
110.5    
$
44.8     
$
0.0    
$
363.0  
    
 
 
   
 
 
   
 
 
    
 
 
   
 
 
 
Exchange effect
     0.2       8.0       0.0        0.0       8.2  
At December 31, 2020
                                         
Gross cost
(1)
  
$
207.9    
$
118.5    
$
44.8     
$
0.0    
$
371.2  
Accumulated impairment losses
     0.0       0.0       0.0        0.0       0.0  
    
 
 
   
 
 
   
 
 
    
 
 
   
 
 
 
Net book amount
  
$
207.9    
$
118.5    
$
44.8     
$
0.0    
$
371.2  
    
 
 
   
 
 
   
 
 
    
 
 
   
 
 
 
(1)
 
Gross cost is net of $8.7 million, $0.3 million and $289.5 million of historical accumulated amortization in respect of the Fuel Specialties, Performance Chemicals and Octane Additives reporting segments, respectively.
v3.20.4
Other Intangible Assets (Tables)
12 Months Ended
Dec. 31, 2020
Goodwill and Intangible Assets Disclosure [Abstract]  
Summary of Other Intangible Assets
Other intangible assets comprise the following:
 
(in millions)
  
2020
 
 
2019
Gross cost at January 1
  
$
294.8  
 
$
294.6
 
Additions
 
 
0.0
 
 
 
1.1
 
Exchange effect
  
 
4.1  
 
 
(0.9
Gross cost at December 31
  
 
298.9  
 
 
294.8
 
Accumulated amortization at January 1
  
 
(181.3
 
 
(158.3
Amortization expense
  
 
(20.9
 
 
(23.0
Impairment
  
 
(19.8
 
 
0.0
 
Exchange effect
  
 
(1.6
 
 
0.0
 
Accumulated amortization at December 31
  
 
(223.6
 
 
(181.3
Net book amount at December 31
  
$
75.3  
 
$
113.5
 
Schedule of Amortization Expense
The net book amount by category of other intangible assets is shown in the following table:
 
(in millions)
  
December 31

2020
    
December 31

2019
 
Product rights
   $ 6.3      $ 10.1  
Brand names
     2.3        2.9  
Technology
     19.8        32.6  
Customer relationships
     44.2        60.8  
Internally developed software
     2.7        7.1  
    
 
 
    
 
 
 
     $ 75.3      $ 113.5  
    
 
 
    
 
 
 
Future amortization expense is estimated to be as follows for the next five years:
 
(in millions)
      
2021
   $ 15.9  
2022
   $ 14.3  
2023
   $ 10.9  
2024
   $ 10.2  
2025
   $ 7.2  
v3.20.4
Pension and Post-Employment Benefits (Tables)
12 Months Ended
Dec. 31, 2020
United Kingdom Plan [Member]  
Plan Net Pension Credit The following table shows the income statement effect recognized within other income, net:
 
(in millions)
  
2020
   
2019
   
2018
 
Plan net pension (credit)/charge:
                        
Interest cost on PBO
   $ 11.2     $ 15.2     $ 15.0  
Expected return on plan assets
     (17.8     (22.0     (22.2
Amortization of prior service credit
     (0.5     (0.9     (1.1
Amortization of actuarial net losses
     0.9       0.0       2.0  
    
 
 
   
 
 
   
 
 
 
     $ (6.2   $ (7.7   $ (6.3
    
 
 
   
 
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Plan assumptions at December 31, (%):
                        
Discount rate
     1.36       1.95       2.78  
Inflation rate
     2.35       2.25       2.25  
Rate of return on plan assets – overall on
bid-value
     2.00       2.50       3.05  
       
Plan asset allocation by category (%):
                        
Debt securities and insurance contracts
     86       86       83  
Equity securities and real estate
     10       10       12  
Cash
     4       4       5  
    
 
 
   
 
 
   
 
 
 
       100       100       100  
    
 
 
   
 
 
   
 
 
 
Movements in PBO and Fair Value of Plan Assets
Movements in PBO and fair value of Plan assets are as follows:
 
(in millions)
  
2020
   
2019
 
Change in PBO:
                
Opening balance
   $ 701.0     $ 643.2  
Interest cost
     11.2       15.2  
Service cost
     1.2       0.9  
Benefits paid
     (45.5     (42.1
Plan amendments
     5.5       0.0  
Actuarial losses
     61.1       57.7  
Exchange effect
     24.2       26.1  
    
 
 
   
 
 
 
Closing balance
   $ 758.7     $ 701.0  
    
 
 
   
 
 
 
Fair value of plan assets:
                
Opening balance
   $ 816.9     $ 739.1  
Benefits paid
     (45.5     (42.1
Actual contributions by employer
     0.0       0.4  
Actual return on assets
     77.6       89.1  
Exchange effect
     27.7       30.4  
    
 
 
   
 
 
 
Closing balance
   $ 876.7     $ 816.9  
    
 
 
   
 
 
 
Fair Value of Pension Assets
The fair values of pension assets by level of input were as follows:
 
(in millions)
  
Quoted Prices
in Active
Markets for
Identical Assets
(Level 1)
    
Significant
Other
Observable
Inputs
(Level 2)
   
Significant
Unobservable
Inputs

(Level 3)
    
Total
 
At December 31, 2020
                                  
Debt securities
:
                                  
Debt securities issued by
non-U.S.
governments and government agencies
   $ 99.5      $       $        $ 99.5  
Corporate debt securities
              488.0                488.0  
Equity backed securities:
                                  
Other financial derivatives
              (2.3              (2.3
Investments measured at net asset
value
(1)
                               51.0  
Other asset backed securities:
                                  
Insurance contracts
                      167.4        167.4  
Real estate
     40.2                         40.2  
    
 
 
    
 
 
   
 
 
    
 
 
 
Total assets at fair value
     139.7        485.7       167.4        843.8  
Cash
     32.9                         32.9  
    
 
 
    
 
 
   
 
 
    
 
 
 
Total plan assets
   $ 172.6      $ 485.7     $ 167.4      $ 876.7  
    
 
 
    
 
 
   
 
 
    
 
 
 
 
(in millions)
  
Quoted Prices
in Active
Markets for
Identical Assets
(Level 1)
 
  
Significant
Other
Observable
Inputs
(Level 2)
 
 
Significant
Unobservable
Inputs
(Level 3)
 
  
Total
 
At December 31, 2019
  
     
  
     
 
     
  
     
Debt securities:
  
     
  
     
 
     
  
     
Debt securities issued by
non-U.S.
governments and government agencies
   $ 98.4      $       $        $ 98.4  
Corporate debt securities
              445.9                445.9  
Equity backed securities:
                                  
 
Other financial derivatives
              (3.7              (3.7
 
Investments measured at net asset value
(1)
                               46.8  
Other asset backed securities:
                                  
Insurance contracts
                      157.9        157.9  
Real estate
     41.7                         41.7  
    
 
 
    
 
 
   
 
 
    
 
 
 
Total assets at fair value
     140.1        442.2       157.9        787.0  
Cash
     29.9                         29.9  
    
 
 
    
 
 
   
 
 
    
 
 
 
Total plan assets
   $ 170.0      $ 442.2     $ 157.9      $ 816.9  
    
 
 
    
 
 
   
 
 
    
 
 
 
 
(1)
 
Certain investments that are measured at fair value using the net asset value per share (or its equivalent) have not been categorized in the fair value table with a hierarchy. The fair value amounts presented in this table are intended to permit reconciliation of the fair value hierarchy to the amounts presented in the statement of financial position.
Reconciliation of Fair Value of Plan Assets Measured Using Significant Unobservable Inputs
The reconciliation of the fair value of the Plan assets measured using significant unobservable inputs was as follows:
 
(in millions)
  
Other

Assets
 
Balance at December 31, 2018
   $ 142.5  
    
 
 
 
Realized/unrealized gains/(losses):
        
Relating to assets still held at the reporting date
     16.0  
Purchases, issuances and settlements
     (6.5
Exchange effect
     5.9  
    
 
 
 
Balance at December 31, 2019
   $ 157.9  
    
 
 
 
Realized/unrealized gains/(losses):
        
Relating to assets still held at the reporting date
     10.8  
Purchases, issuances and settlements
     (6.6
Exchange effect
     5.3  
    
 
 
 
Balance at December 31, 2020
   $ 167.4  
    
 
 
 
Plan Net Pension Credit The following net pension credit will be recognized in other income and expense:
 
(in millions)
      
Interest cost on PBO
   $ 7.5  
Expected return on plan assets
     (15.4
Amortization of prior service credit
     0.3  
Amortization of actuarial net losses
     1.6  
    
 
 
 
     $ (6.0
    
 
 
 
Expected Benefit Payments
The following benefit payments are expected to be made:
 
(in millions)
      
2021
   $ 43.9  
2022
   $ 36.9  
2023
   $ 35.9  
2024
   $ 36.1  
2025
   $ 35.8  
2026-2030
   $ 172.0  
German Plan [Member]  
Movements in PBO and Fair Value of Plan Assets
Movements in PBO of the German plan are as follows:
 
(in millions)
  
2020
   
2019
 
Change in PBO:
                
Opening balance
   $ 13.3     $ 11.3  
Service cost
     0.1       0.1  
Interest cost
     0.1       0.2  
Benefits paid
     (0.3     (0.3
Actuarial losses
     0.8       2.2  
Exchange effect
     1.2       (0.2
    
 
 
   
 
 
 
Closing balance
   $ 15.2     $ 13.3  
    
 
 
   
 
 
 
Plan Net Pension Credit The following table shows the income statement effect recognized within other income and expense:
 
(in millions)
  
2020
    
2019
    
2018
 
Plan net pension charge:
                          
Interest cost on PBO
   $ 0.1      $ 0.2      $ 0.2  
Amortization of actuarial net loss
     0.8        0.3        0.4  
    
 
 
    
 
 
    
 
 
 
     $ 0.9      $ 0.5      $ 0.6  
Plan assumptions at December 31, (%):
                          
Discount rate
     0.40        0.80        1.90  
Inflation rate
     1.50        1.75        1.75  
Rate of increase in compensation levels
     2.75        2.75        2.75  
v3.20.4
Income Taxes (Tables)
12 Months Ended
Dec. 31, 2020
Income Tax Disclosure [Abstract]  
Roll-forward of Unrecognized Tax Benefits and Associated Accrued Interest and Penalties
A roll-forward of unrecognized tax benefits and associated accrued interest and penalties is as follows:
 
(in millions)
  
Unrecognised

Tax Benefits
   
Interest
and
Penalties
   
Total
 
Opening balance at January 1, 2018
   $ 2.2     $ 0.3     $ 2.5  
Additions for tax positions of prior periods
     11.7       0.4       12.1  
Reductions due to lapsed statute of limitations
     (0.5     (0.1     (0.6
    
 
 
   
 
 
   
 
 
 
Closing balance at 31 December, 2018
     13.4       0.6       14.0  
Current
     0.0       0.0       0.0  
    
 
 
   
 
 
   
 
 
 
Non-current
   $ 13.4     $ 0.6     $ 14.0  
    
 
 
   
 
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Opening balance at January 1, 2019
   $ 13.4     $ 0.6     $ 14.0  
Additions for tax positions of prior periods
     1.0       1.4       2.4  
    
 
 
   
 
 
   
 
 
 
Closing balance at 31 December, 2019
     14.4       2.0       16.4  
Current
     0.0       0.0       0.0  
    
 
 
   
 
 
   
 
 
 
Non-current
   $ 14.4     $ 2.0     $ 16.4  
    
 
 
   
 
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Opening balance at January 1, 2020
   $ 14.4     $ 2.0     $ 16.4  
Reductions for tax positions of prior periods
     (1.2     (0.2     (1.4
Additions for tax positions of prior periods
     0.4       0.6       1.0  
    
 
 
   
 
 
   
 
 
 
Closing balance at 31 December, 2020
     13.6       2.4       16.0  
Current
     0.0       0.0       0.0  
    
 
 
   
 
 
   
 
 
 
Non-current
   $ 13.6     $ 2.4     $ 16.0  
    
 
 
   
 
 
   
 
 
 
Sources of Income before Income Taxes
The sources of income before income taxes were as follows:
 
(in millions)
  
2020
    
2019
    
2018
 
Domestic
   $ (0.7    $ 52.4      $ 37.1  
Foreign
     40.4        98.0        94.5  
    
 
 
    
 
 
    
 
 
 
     $ 39.7      $ 150.4      $ 131.6  
    
 
 
    
 
 
    
 
 
 
Components of Income Tax Expense
The components of income tax expense are summarized as follows:
 
(in millions)
  
2020
    
2019
    
2018
 
Current:
                          
Federal
   $ 6.1      $ 13.8      $ 12.5  
State and local
     0.5        2.3        2.0  
Foreign
     6.8        22.9        26.6  
    
 
 
    
 
 
    
 
 
 
       13.4        39.0        41.1  
    
 
 
    
 
 
    
 
 
 
Deferred:
                          
Federal
     (2.8      (3.0      4.2  
State and local
     (0.4      (0.5      0.3  
Foreign
     0.8        2.7        1.0  
    
 
 
    
 
 
    
 
 
 
       (2.4      (0.8      5.5  
    
 
 
    
 
 
    
 
 
 
     $ 11.0      $ 38.2      $ 46.6  
    
 
 
    
 
 
    
 
 
 
Factors Effecting Effective Tax Rate from U.S. Federal Statutory Rate
The effective tax rate varies from the U.S. federal statutory rate because of the factors indicated below:
 
(in percent)
  
2020
   
2019
   
2018
 
Statutory rate
     21.0     21.0     21.0
Foreign income inclusions
     7.1       0.3       0.7  
Foreign tax rate differential
     4.2       (0.3     (0.8
Tax charge/(credit) from previous
years
     3.7       1.8       0.7  
Net charge/(credit) from
unrecognized tax benefits
     (1.7     1.1       0.3  
Foreign currency transactions
     (4.5     (1.0     1.2  
Effect of U.S. tax law change
     0.0       0.6       9.3  
Tax on unremitted earnings
     0.3       (0.1     0.9  
Non-deductible
foreign interest
     0.7       0.8       1.3  
Change in UK statutory tax rate
     6.9       0.0       0.0  
State and local taxes
     1.5       1.4       1.2  
US incentive for foreign derived intangible income
     (1.5     (0.5     (1.0
Innovation incentives – current year
     (4.9     (0.6     (0.6
Innovation incentives – prior years
     (5.3     0.0       0.0  
Non-deductible
officer compensation
     1.8       0.2       0.4  
Other items and adjustments, net
     (1.6     0.7       0.8  
    
 
 
   
 
 
   
 
 
 
       27.7     25.4     35.4
    
 
 
   
 
 
   
 
 
 
Details of Deferred Tax Assets and Liabilities
Details of deferred tax assets and liabilities are
analyzed
as follows:
 
(in millions)
  
2020
    
2019
 
Deferred tax assets:
                 
Stock compensation
   $ 5.3      $ 6.7  
Net operating loss carry forwards
     9.8        7.3  
Other intangible assets
     10.6        6.0  
Accretion expense
     3.2        3.3  
Restructuring provision
     1.4        0.0  
Foreign tax credits
     2.0        3.6  
Operating lease liabilities
 
 
9.2
 
 
 
7.4
 
Other
     6.9        5.9  
    
 
 
    
 
 
 
Subtotal
     48.4        40.2  
Less valuation allowance
     (1.1      (0.8
    
 
 
    
 
 
 
Total net deferred tax assets
   $ 47.3      $ 39.4  
    
 
 
    
 
 
 
Deferred tax liabilities:
                 
Property, plant and equipment
   $ (21.3    $ (19.5
Intangible assets including goodwill
     (28.3      (28.1
Pension asset
     (20.5      (18.2
Investment impairment recapture
     0.0        (1.0
Customer relationships
     (4.4      (4.2
Unremitted overseas earnings
     (2.0      (1.0
Right-of-use assets
 
 
(9.2
 
 
(7.4
Other
     (0.9      (0.5
    
 
 
    
 
 
 
Total deferred tax liabilities
   $ (86.6    $ (79.9
    
 
 
    
 
 
 
Net deferred tax liability
   $ (39.3    $ (40.5
    
 
 
    
 
 
 
Deferred tax assets
   $ 7.6      $ 9.1  
Deferred tax liabilities
     (46.9      (49.6
    
 
 
    
 
 
 
     $ (39.3    $ (40.5
    
 
 
    
 
 
 
v3.20.4
Long-Term Debt (Tables)
12 Months Ended
Dec. 31, 2020
Debt Disclosure [Abstract]  
Schedule of Long-Term Debt
Long-term debt consists of the following:
 
(in millions)
  
2020
    
2019
 
Revolving credit facility
   $ 0.0      $ 60.0  
Term loan
     0.0        0.0  
Deferred finance costs
     0.0        (1.4
    
 
 
    
 
 
 
       0.0        58.6  
Less current portion
     0.0        0.0  
    
 
 
    
 
 
 
     $ 0.0      $ 58.6  
    
 
 
    
 
 
 
Summary of Debt Refinancing Costs
 
(in millions)
  
2020
    
2019
 
Gross cost at January 1
   $ 1.5      $ 2.7  
Capitalized in the year
     0.3        1.5  
Written down in the year
     0.0        (2.7
    
 
 
    
 
 
 
       1.8        1.5  
    
 
 
    
 
 
 
Accumulated amortization at January 1
   $ (0.1    $ (1.8
Amortization in the year
     (0.4      (1.0
Amortization written down in the year
     0.0        2.7  
    
 
 
    
 
 
 
     $ (0.5    $ (0.1
    
 
 
    
 
 
 
Net book value at December 31
   $ 1.3      $ 1.4  
    
 
 
    
 
 
 
v3.20.4
Plant Closure Provisions (Tables)
12 Months Ended
Dec. 31, 2020
Restructuring and Related Activities [Abstract]  
Movements in Plant Closure and Restructuring Provisions
Movements in the provisions are summarized as follows:
 
(in millions)
  
2020
   
2019
   
2018
 
Total at January 1
   $ 49.3     $ 49.5     $ 46.1  
Charge for the period excluding restructuring
     5.1       4.4       6.8  
Restructuring (see Note 5)
     7.5       0.0       0.0  
Utilized in the period
     (4.1     (4.4     (3.1
Exchange effect
     0.7       (0.2     (0.3
Total at December 31
     58.5       49.3       49.5  
Due within one year
     (6.6     (5.6     (5.9
    
 
 
   
 
 
   
 
 
 
Due after one year
   $ 51.9     $ 43.7     $ 43.6  
    
 
 
   
 
 
   
 
 
 
v3.20.4
Fair Value Measurements (Tables)
12 Months Ended
Dec. 31, 2020
Fair Value Disclosures [Abstract]  
Carrying Amount and Fair Values of the Company's Assets and Liabilities Measured on a Recurring Basis
The following table presents the carrying amount and fair values of the Company’s assets and liabilities measured on a recurring basis:
 
    
December 31, 2020
    
December 31, 2019
 
(in millions)
  
Carrying

Amount
    
Fair

Value
    
Carrying

Amount
    
Fair

Value
 
Assets
                                   
Non-derivatives:
                                   
Cash and cash equivalents
   $ 105.3      $ 105.3      $ 75.7      $ 75.7  
Derivatives (Level 1 measurement):
                                   
Other current and
non-current
assets:
                                   
Foreign currency forward exchange contracts
     0.0        0.0        0.8        0.8  
Liabilities
                                   
Non-derivatives:
                                   
Long-term debt (including current portion)
   $ 0.0      $ 0.0      $ 58.6      $ 58.6  
Finance leases (including current portion)
     0.6        0.6        1.5        1.5  
Derivatives (Level 1 measurement):
                                   
Other
 
current
liabilities:
                                   
Foreign currency forward exchange contracts
     0.5        0.5        0.0        0.0  
Non-financial
liabilities (Level 3 measurement):
                                   
Stock equivalent units
     17.2        17.2        24.6        24.6  
v3.20.4
Stockholders' Equity (Tables)
12 Months Ended
Dec. 31, 2020
Equity [Abstract]  
Stockholders' Equity
 
    
Common Stock
    
Treasury Stock
 
(number of shares in thousands)
  
2020
    
2019
    
2018
    
2020
   
2019
   
2018
 
At January 1
     29,554.5        29,554.5        29,554.5        5,047       5,121       5,204  
Exercise of options
     0        0        0        (109     (104     (103
Stock purchases
     0        0        0        21       30       20  
    
 
 
    
 
 
    
 
 
    
 
 
   
 
 
   
 
 
 
At December 31
     29,554.5        29,554.5        29,554.5        4,959       5,047       5,121  
    
 
 
    
 
 
    
 
 
    
 
 
   
 
 
   
 
 
 
v3.20.4
Stock-Based Compensation Plans (Tables)
12 Months Ended
Dec. 31, 2020
Summarizes Transactions of SEUs
The following table summarizes the transactions of the Company’s SEUs for the year ended December 31, 2020:
 
    
Number
of SEUs
   
Weighted
Average
Exercise
Price
    
Weighted
Average
Grant-Date

Fair Value
 
Outstanding at December 31, 2019
     390,816     $ 3.69      $ 59.91  
Granted – at discount
     113,107     $ 0.00      $ 76.63  
      – at market value
     3,634     $ 95.70      $ 18.69  
Exercised
     (93,057   $ 0.82      $ 60.04  
Forfeited
     (24,336   $ 0.60      $ 65.99  
    
 
 
                  
Outstanding at December 31, 2020
     390,164     $ 4.35      $ 63.96  
    
 
 
                  
Stock Options Plan [Member]  
Assumptions Used to Determine Grant-Date Fair Value of Options The following weighted average assumptions were used to determine the grant-date fair value of options:
 
    
2020
   
2019
   
2018
 
Dividend yield
     1.18     1.09     1.11
Expected life
     5 years       5 years       5 years  
Volatility
     27.0     26.8     25.6
Risk free interest rate
     1.13     2.48     2.74
Summary of Transactions of Company's Stock Option Plans
The following table summarizes the transactions of the Company’s stock option plans for the year ended December 31, 2020:
 
    
Number of
Options
   
Weighted
Average
Exercise
Price
    
Weighted
Average

Grant-Date

Fair Value
 
Outstanding at December 31, 2019
     504,459     $ 33.05      $ 41.35  
Granted – at discount
     63,950     $ 1.11      $ 76.80  
      – at market value
     10,419     $ 95.70      $ 18.69  
Exercised
     (108,518   $ 20.31      $ 45.17  
Forfeited
     (27,417   $ 41.93      $ 36.41  
    
 
 
                  
Outstanding at December 31, 2020
     442,893     $ 32.49      $ 45.31  
    
 
 
                  
Stock Equivalent Units [Member]  
Assumptions Used to Determine Fair Value of SEUs The following assumptions were used to determine the fair value of SEUs at the balance sheet dates:
 
    
2020
   
2019
   
2018
 
Dividend yield
     1.15     0.99     1.44
Expected life
     5 years       5 years       5 years  
Volatility
     39.9     26.6     27.2
Risk free interest rate
     0.17     1.62     2.46
v3.20.4
Reclassifications out of Accumulated Other Comprehensive Loss (Tables)
12 Months Ended
Dec. 31, 2020
Equity [Abstract]  
Summary of Reclassifications Out of Accumulated Other Comprehensive Loss
Reclassifications out of accumulated other comprehensive loss for 2020 were:
 
(in millions)
  
Amount
Reclassified
from AOCL
   
Affected Line Item in the
Statement where
Net
 
Income is Presented
Details about AOCL Components
Defined benefit pension plan items:
            
Amortization of prior service credit
   $ (0.5   See (1) below
Amortization of actuarial net losses
     1.7     See (1) below
    
 
 
     
       1.2     Total before tax
       (0.1   Income tax expense
    
 
 
     
Total reclassifications
   $ 1.1     Net of tax
    
 
 
     
(1)
  
These items are included in the computation of net periodic pension cost. See Note 9 of the Notes to the Consolidated Financial Statements for additional information.
Changes in Accumulated Other Comprehensive Loss Changes in accumulated other comprehensive loss for 2020, net of tax, were:
 
(in millions)
  
Defined
Benefit
Pension
Plan Items
   
Cumulative
Translation
Adjustments
   
Total
 
Balance at December 31, 2019
   $ (9.3   $ (65.1   $ (74.4
    
 
 
   
 
 
   
 
 
 
Other comprehensive income before reclassifications
     0.0       23.7       23.7  
Amounts reclassified from AOCL
     1.1       0.0       1.1  
Actuarial net gains arising during the year
     (7.7     0.0       (7.7
    
 
 
   
 
 
   
 
 
 
Net current period other comprehensive income
     (6.6     23.7       17.1  
    
 
 
   
 
 
   
 
 
 
Balance at December 31, 2020
   $ (15.9   $ (41.4   $ (57.3
    
 
 
   
 
 
   
 
 
 
v3.20.4
Accounting Policies - Estimated Useful Lives of Major Classes of Depreciable Assets (Detail)
12 Months Ended
Dec. 31, 2020
Buildings [Member] | Minimum [Member]  
Property, Plant and Equipment [Line Items]  
Estimated useful lives of assets 7 years
Buildings [Member] | Maximum [Member]  
Property, Plant and Equipment [Line Items]  
Estimated useful lives of assets 25 years
Equipment [Member] | Minimum [Member]  
Property, Plant and Equipment [Line Items]  
Estimated useful lives of assets 3 years
Equipment [Member] | Maximum [Member]  
Property, Plant and Equipment [Line Items]  
Estimated useful lives of assets 10 years
v3.20.4
Accounting Policies - Estimated Useful Lives of Major Classes of Assets (Detail)
12 Months Ended
Dec. 31, 2020
Technology [Member] | Minimum [Member]  
Other Intangible Assets [Line Items]  
finite-lived intangible asset, useful life 10 years
Technology [Member] | Maximum [Member]  
Other Intangible Assets [Line Items]  
finite-lived intangible asset, useful life 17 years
Customer lists [Member] | Minimum [Member]  
Other Intangible Assets [Line Items]  
finite-lived intangible asset, useful life 10 years
Customer lists [Member] | Maximum [Member]  
Other Intangible Assets [Line Items]  
finite-lived intangible asset, useful life 15 years
Brand Names [Member] | Minimum [Member]  
Other Intangible Assets [Line Items]  
finite-lived intangible asset, useful life 5 years
Brand Names [Member] | Maximum [Member]  
Other Intangible Assets [Line Items]  
finite-lived intangible asset, useful life 10 years
Product Rights [Member] | Minimum [Member]  
Other Intangible Assets [Line Items]  
finite-lived intangible asset, useful life 9 years
Product Rights [Member] | Maximum [Member]  
Other Intangible Assets [Line Items]  
finite-lived intangible asset, useful life 10 years
Internally Developed Software [Member] | Minimum [Member]  
Other Intangible Assets [Line Items]  
finite-lived intangible asset, useful life 3 years
Internally Developed Software [Member] | Maximum [Member]  
Other Intangible Assets [Line Items]  
finite-lived intangible asset, useful life 5 years
Marketing Related [Member]  
Other Intangible Assets [Line Items]  
finite-lived intangible asset, useful life 11 years
v3.20.4
Accounting Policies - Additional Information (Detail) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Accounting Policies [Abstract]    
Income tax, Uncertain tax position description The tax benefits recognized in the financial statements from such positions are then measured based on the largest benefit that has a greater than 50% likelihood of being realized upon settlement.  
Allowances for doubtful accounts $ 4.5 $ 3.8
v3.20.4
Segment Reporting and Geographical Area Data - Segment Reporting (Detail) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Segment Reporting Information [Line Items]      
Net sales $ 1,193.1 $ 1,513.3 $ 1,476.9
Gross profit/(loss) 342.7 466.2 435.0
Restructuring charge (21.3) (0.0) (7.1)
Impairment of intangible assets (19.8) (0.0) (0.0)
Operating income/(expense) 33.7 149.9 133.5
Identifiable assets at year end 1,397.4 1,468.8 1,473.4
Operating Segments [Member] | Fuel Specialties [Member]      
Segment Reporting Information [Line Items]      
Net sales 512.7 583.7 574.5
Gross profit/(loss) 160.3 204.5 195.0
Operating income/(expense) 84.5 116.6 116.3
Identifiable assets at year end 509.7 499.7 470.5
Operating Segments [Member] | Fuel Specialties [Member] | Refinery and Performance [Member]      
Segment Reporting Information [Line Items]      
Net sales 372.9 427.9 432.1
Operating Segments [Member] | Fuel Specialties [Member] | Other [Member]      
Segment Reporting Information [Line Items]      
Net sales 139.8 155.8 142.4
Operating Segments [Member] | Performance Chemicals [Member]      
Segment Reporting Information [Line Items]      
Net sales 425.4 428.7 468.1
Gross profit/(loss) 103.8 100.1 97.5
Operating income/(expense) 54.8 48.7 44.7
Identifiable assets at year end 391.5 383.3 463.9
Operating Segments [Member] | Performance Chemicals [Member] | Personal Care [Member]      
Segment Reporting Information [Line Items]      
Net sales 231.4 228.0 241.4
Operating Segments [Member] | Performance Chemicals [Member] | Home Care [Member]      
Segment Reporting Information [Line Items]      
Net sales 87.0 93.4 109.1
Operating Segments [Member] | Performance Chemicals [Member] | Other [Member]      
Segment Reporting Information [Line Items]      
Net sales 107.0 107.3 117.6
Operating Segments [Member] | Oilfield Services [Member]      
Segment Reporting Information [Line Items]      
Net sales 255.0 479.9 400.6
Gross profit/(loss) 80.8 159.9 130.4
Operating income/(expense) (9.5) 39.7 22.1
Identifiable assets at year end 210.8 316.8 296.1
Operating Segments [Member] | Octane Additives [Member]      
Segment Reporting Information [Line Items]      
Net sales 0.0 21.0 33.7
Gross profit/(loss) (2.2) 1.7 12.1
Operating income/(expense) (2.8) (0.7) 9.9
Identifiable assets at year end 0.0 24.2 39.6
Corporate, Non-Segment [Member]      
Segment Reporting Information [Line Items]      
Corporate costs (52.2) (54.4) (52.4)
Restructuring charge (21.3) (0.0) (7.1)
Impairment of intangible assets (19.8) (0.0) (0.0)
Identifiable assets at year end $ 285.4 $ 244.8 $ 203.3
v3.20.4
Segment Reporting and Geographical Area Data - Segment Reporting on Basis of Geographical Location (Detail) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Revenues from External Customers and Long-Lived Assets [Line Items]      
Net sales $ 1,193.1 $ 1,513.3 $ 1,476.9
Income before income taxes 39.7 150.4 131.6
Long-lived assets at year end 325.7 343.3 332.7
Goodwill 371.2 363.0 364.9
Identifiable assets at year end 1,397.4 1,468.8 1,473.4
United States & North America [Member]      
Revenues from External Customers and Long-Lived Assets [Line Items]      
Net sales 642.4 897.2 803.1
Income before income taxes 0.0 53.9 37.1
Long-lived assets at year end 141.0 156.0 148.6
Identifiable assets at year end 368.8 419.5 402.5
United Kingdom [Member]      
Revenues from External Customers and Long-Lived Assets [Line Items]      
Net sales 689.1 810.9 797.5
Income before income taxes 16.9 67.0 59.5
Long-lived assets at year end 61.3 70.4 71.6
Identifiable assets at year end 455.8 487.2 504.7
Rest of Europe [Member]      
Revenues from External Customers and Long-Lived Assets [Line Items]      
Net sales 83.4 115.7 143.7
Income before income taxes 19.7 27.2 32.8
Long-lived assets at year end 123.2 116.6 112.2
Identifiable assets at year end 171.0 163.2 173.1
Rest of World [Member]      
Revenues from External Customers and Long-Lived Assets [Line Items]      
Net sales 45.6 47.8 29.5
Income before income taxes 3.1 2.3 2.2
Long-lived assets at year end 0.2 0.3 0.3
Identifiable assets at year end 30.6 35.9 28.2
Sales Between Areas [Member]      
Revenues from External Customers and Long-Lived Assets [Line Items]      
Net sales $ (267.4) $ (358.3) $ (296.9)
v3.20.4
Earnings Per Share - Additional Information (Detail) - shares
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Earnings Per Share [Abstract]      
Average number of anti-dilutive options excluded from the calculation of diluted earnings per share 17,980 6,270 0
v3.20.4
Earnings Per Share - Summary of Earnings Per Share (Detail) - USD ($)
$ / shares in Units, shares in Thousands, $ in Millions
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Numerator (in millions):      
Net income available to common stockholders $ 28.7 $ 112.2 $ 85.0
Denominator (in thousands):      
Weighted average common shares outstanding 24,563 24,482 24,401
Dilutive effect of stock options and awards 216 246 202
Denominator for diluted earnings per share 24,779 24,728 24,603
Net income per share, basic: $ 1.17 $ 4.58 $ 3.48
Net income per share, diluted: $ 1.16 $ 4.54 $ 3.45
v3.20.4
Restructuring - Additional Information (Detail) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Restructuring Cost and Reserve [Line Items]      
Restructuring charges provided for during the period $ 21.3 $ 0.0 $ 7.1
Environment remediation and monitoring costs 7.5 0.0 0.0
Impairment of tangible assets 2.0 $ 0.0 $ 0.0
Environmental Monitoring Expense 2.0    
Octane Additives [Member]      
Restructuring Cost and Reserve [Line Items]      
Impairment of tangible assets 2.0    
Octane Additives [Member] | Operating Segments [Member] | Tetra Ethyl Lead [Member]      
Restructuring Cost and Reserve [Line Items]      
Restructuring charges provided for during the period 21.3    
Environment remediation and monitoring costs 7.5    
Expected loss on contracts 7.2    
Impairment of tangible assets 2.0    
Restructuring costs due to downsizing of operations $ 2.6    
v3.20.4
Property, Plant and Equipment - Schedule of Property, Plant and Equipment (Detail) - USD ($)
$ in Millions
Dec. 31, 2020
Dec. 31, 2019
Property, Plant and Equipment [Line Items]    
Property, plant and equipment, Gross $ 464.5 $ 429.5
Accumulated depreciation (253.7) (230.8)
Property, plant and equipment, Net 210.8 198.7
Land [Member]    
Property, Plant and Equipment [Line Items]    
Property, plant and equipment, Gross 21.6 19.8
Buildings [Member]    
Property, Plant and Equipment [Line Items]    
Property, plant and equipment, Gross 65.5 60.0
Equipment [Member]    
Property, Plant and Equipment [Line Items]    
Property, plant and equipment, Gross 349.9 330.7
Work in Progress [Member]    
Property, Plant and Equipment [Line Items]    
Property, plant and equipment, Gross $ 27.5 $ 19.0
v3.20.4
Property, Plant and Equipment - Additional Information (Detail) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Property, Plant and Equipment [Line Items]      
Amounts of assets held under finance leases $ 210.8 $ 198.7  
Depreciation charges 24.7 23.6 $ 22.6
Tangible Asset Impairment Charges 2.0 0.0 $ 0.0
Octane Additives [Member]      
Property, Plant and Equipment [Line Items]      
Tangible Asset Impairment Charges 2.0    
Assets Held under Capital Leases [Member]      
Property, Plant and Equipment [Line Items]      
Amounts of assets held under finance leases $ 1.0 $ 1.8  
v3.20.4
Leases - Additional Information (Detail) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Leases [Line Items]    
Additional leases that have not yet commenced $ 0.0 $ 0.0
Maximum [Member]    
Leases [Line Items]    
Operating and finance leases, remaining lease terms 10 years  
Minimum [Member]    
Leases [Line Items]    
Operating and finance leases, remaining lease terms 1 year  
v3.20.4
Leases - Components of Lease Expense (Detail) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Finance lease cost:    
Amortization of right-of-use assets $ 1.0 $ 1.7
Interest on lease liabilities 0.0 0.0
Total finance lease cost 1.0 1.7
Operating lease cost 12.8 12.1
Short-term lease cost 3.2 2.5
Variable lease cost 0.3 0.3
Total lease cost $ 17.3 $ 16.6
v3.20.4
Leases - Supplemental Cash Flow Information Related to Leases (Detail) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Cash paid for amounts included in the measurement of lease liabilities:    
Operating cash flows from operating leases $ 15.9 $ 14.3
Operating cash flows from finance leases 1.2 2.1
Financing cash flows from finance leases 0.0 0.0
Right-of-use assets obtained in exchange for new lease obligations:    
Operating leases 5.7 4.3
Finance leases $ 0.0 $ 0.0
v3.20.4
Leases - Supplemental Balance Sheet Information Related to Leases (Detail) - USD ($)
$ in Millions
Dec. 31, 2020
Dec. 31, 2019
Operating Leases    
Operating lease right-of-use assets $ 40.1 $ 32.4
Current portion of operating lease liabilities 11.3 10.6
Operating lease liabilities, net of current portion 28.9 21.9
Total operating lease liabilities 40.2 32.5
Finance leases    
Property, plant and equipment at cost 464.5 429.5
Accumulated depreciation (253.7) (230.8)
Property, plant and equipment, Net 210.8 198.7
Total finance lease liabilities $ 0.6 $ 1.5
Weighted average remaining lease term    
Operating leases 4 years 1 month 6 days 3 years 3 months 18 days
Finance leases 1 year 1 month 6 days 1 year 8 months 12 days
Weighted average discount rate    
Operating leases 3.00% 3.10%
Finance leases 2.60% 2.40%
Financial Leases [Member]    
Finance leases    
Property, plant and equipment at cost $ 9.0 $ 9.9
Accumulated depreciation (8.0) (8.1)
Property, plant and equipment, Net 1.0 1.8
Current portion of finance leases 0.5 1.0
Finance leases, net of current portion 0.1 0.5
Total finance lease liabilities $ 0.6 $ 1.5
v3.20.4
Leases - Maturities of Lease Liabilities (Detail) - USD ($)
$ in Millions
Dec. 31, 2020
Dec. 31, 2019
Operating Lease Liabilities, Payments Due [Abstract]    
Within one year $ 11.4 $ 10.8
Year two 9.4 9.1
Year three 8.2 5.8
Year four 5.5 4.4
Year five 3.8 2.1
Thereafter 4.6 2.5
Total lease payments 42.9 34.7
Less imputed interest (2.7) (2.2)
Total operating lease liabilities 40.2 32.5
Finance Lease Liabilities, Payments, Due [Abstract]    
Within one year 0.5 1.1
Year two 0.1 0.4
Year three 0.0 0.1
Year four 0.0 0.0
Year five 0.0 0.0
Thereafter 0.0 0.0
Total lease payments 0.6 1.6
Less imputed interest (0.0) (0.1)
Total finance lease liabilities $ 0.6 $ 1.5
v3.20.4
Goodwill - Additional Information (Detail) - USD ($)
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Goodwill [Line Items]      
Impairment of goodwill $ 0    
Fuel Specialties [Member]      
Goodwill [Line Items]      
Impairment of goodwill 0 $ 0 $ 0
Performance Chemicals [Member]      
Goodwill [Line Items]      
Impairment of goodwill 0 0 0
Oilfield Services [Member]      
Goodwill [Line Items]      
Impairment of goodwill 0 0 0
Octane Additives [Member]      
Goodwill [Line Items]      
Impairment of goodwill $ 0 $ 0 $ 0
v3.20.4
Goodwill - Summary of Goodwill (Detail) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Goodwill [Line Items]    
Gross cost, beginning balance $ 599.5 $ 601.4
Accumulated impairment losses, beginning balance (236.5) (236.5)
Net book amount, beginning balance 363.0 364.9
Exchange effect 8.2 (1.9)
Gross cost, ending balance 371.2 599.5
Accumulated impairment losses, ending balance (0.0) (236.5)
Net book amount, ending balance 371.2 363.0
Fuel Specialties [Member]    
Goodwill [Line Items]    
Gross cost, beginning balance 207.7 207.9
Accumulated impairment losses, beginning balance (0.0) (0.0)
Net book amount, beginning balance 207.7 207.9
Exchange effect 0.2 (0.2)
Gross cost, ending balance 207.9 207.7
Accumulated impairment losses, ending balance (0.0) (0.0)
Net book amount, ending balance 207.9 207.7
Performance Chemicals [Member]    
Goodwill [Line Items]    
Gross cost, beginning balance 110.5 112.2
Accumulated impairment losses, beginning balance (0.0) (0.0)
Net book amount, beginning balance 110.5 112.2
Exchange effect 8.0 (1.7)
Gross cost, ending balance 118.5 110.5
Accumulated impairment losses, ending balance (0.0) (0.0)
Net book amount, ending balance 118.5 110.5
Oilfield Services [Member]    
Goodwill [Line Items]    
Gross cost, beginning balance 44.8 44.8
Accumulated impairment losses, beginning balance (0.0) (0.0)
Net book amount, beginning balance 44.8 44.8
Exchange effect 0.0 0.0
Gross cost, ending balance 44.8 44.8
Accumulated impairment losses, ending balance (0.0) (0.0)
Net book amount, ending balance 44.8 44.8
Octane Additives [Member]    
Goodwill [Line Items]    
Gross cost, beginning balance 236.5 236.5
Accumulated impairment losses, beginning balance (236.5) (236.5)
Net book amount, beginning balance 0.0 0.0
Exchange effect 0.0 0.0
Gross cost, ending balance 0.0 236.5
Accumulated impairment losses, ending balance (0.0) (236.5)
Net book amount, ending balance $ 0.0 $ 0.0
v3.20.4
Goodwill - Summary of Goodwill (Parenthetical) (Detail) - USD ($)
$ in Millions
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Fuel Specialties [Member]      
Goodwill [Line Items]      
Historical accumulated amortization $ 8.7 $ 8.7 $ 8.7
Performance Chemicals [Member]      
Goodwill [Line Items]      
Historical accumulated amortization 0.3 0.3 0.3
Octane Additives [Member]      
Goodwill [Line Items]      
Historical accumulated amortization $ 289.5 $ 289.5 $ 289.5
v3.20.4
Other Intangible Assets - Summary of Other Intangible Assets (Detail) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Gross cost at January 1 $ 294.8 $ 294.6  
Additions 0.0 1.1  
Exchange effect 4.1 (0.9)  
Gross cost at December 31 298.9 294.8 $ 294.6
Accumulated amortization at January 1 (181.3) (158.3)  
Amortization expense (20.9) (23.0) (26.3)
Impairment (19.8) (0.0) (0.0)
Exchange effect (1.6) 0.0  
Accumulated amortization at December 31 (223.6) (181.3) $ (158.3)
Net book amount at December 31 $ 75.3 $ 113.5  
v3.20.4
Other Intangible Assets - Schedule of Amortization Expense (Detail) - USD ($)
$ in Millions
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Finite-Lived Intangible Assets [Line Items]      
Gross cost at January 1 $ 298.9 $ 294.8 $ 294.6
Other Intangible Assets, Net 75.3 113.5  
Product Rights [Member]      
Finite-Lived Intangible Assets [Line Items]      
Gross cost at January 1 6.3 10.1  
Brand Names [Member]      
Finite-Lived Intangible Assets [Line Items]      
Gross cost at January 1 2.3 2.9  
Technology [Member]      
Finite-Lived Intangible Assets [Line Items]      
Gross cost at January 1 19.8 32.6  
Customer and Distributor Relationships [Member]      
Finite-Lived Intangible Assets [Line Items]      
Gross cost at January 1 44.2 60.8  
Internally Developed Software [Member]      
Finite-Lived Intangible Assets [Line Items]      
Gross cost at January 1 $ 2.7 $ 7.1  
v3.20.4
Other Intangible Assets - Additional Information (Detail) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Finite-Lived Intangible Assets [Line Items]      
Amortization expense $ 20.9 $ 23.0 $ 26.3
Cost of goods, amortization 2.9 3.4 3.4
Impairment of intangible assets 19.8 $ 0.0 $ 0.0
Technology-Based Intangible Assets [Member]      
Finite-Lived Intangible Assets [Line Items]      
Impairment of intangible assets 10.0    
Customer and Distributor Relationships [Member]      
Finite-Lived Intangible Assets [Line Items]      
Impairment of intangible assets $ 9.8    
v3.20.4
Other Intangible Assets - Schedule of Future Amortization Estimated Expense (Detail)
$ in Millions
Dec. 31, 2020
USD ($)
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract]  
2020 $ 15.9
2021 14.3
2022 10.9
2023 10.2
2024 $ 7.2
v3.20.4
Pension and Post-Employment Benefits - Additional Information (Detail) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Defined Benefit Plan Disclosure [Line Items]        
Annual cash contribution   $ 0.0 $ 0.4  
Percentage change in discount rate   0.25%    
Amount change in PBO due to discount rate   $ 26.0    
Amount change in net pension credit due to discount rate   0.4    
Amount change in PBO due to change price inflation   $ 19.0    
Percentage change in price inflation   0.25%    
Amount change in net pension credit due price inflation   $ 1.2    
Maximum percentage of Plan's assets invested in individual company's investment funds   5.00%    
Management Specialists [Member]        
Defined Benefit Plan Disclosure [Line Items]        
Percentage change in discount rate     0.13%  
Reduction in Pension Benefit Obligation   $ 14.0    
Forecast [Member]        
Defined Benefit Plan Disclosure [Line Items]        
Net pension credit, total $ 4.4      
Other Plans [Member]        
Defined Benefit Plan Disclosure [Line Items]        
Amount of contributions to defined contribution schemes   $ 10.3 $ 10.4  
United Kingdom Plan [Member]        
Defined Benefit Plan Disclosure [Line Items]        
Percentage of asset allocation, actual   100.00% 100.00% 100.00%
Germany [Member]        
Defined Benefit Plan Disclosure [Line Items]        
Net service cost, total   $ 0.1 $ 0.1 $ 0.2
Europe [Member] | Performance Chemicals [Member]        
Defined Benefit Plan Disclosure [Line Items]        
Post-employment obligations European businesses   5.3 $ 4.5  
France [Member]        
Defined Benefit Plan Disclosure [Line Items]        
Amount of unrecognized actuarial net losses, net of tax   $ 0.2    
Non-US [Member]        
Defined Benefit Plan Disclosure [Line Items]        
Percentage of asset allocation, actual   11.00% 12.00%  
Selling, General and Administrative Expenses [Member] | United Kingdom Plan [Member]        
Defined Benefit Plan Disclosure [Line Items]        
Net service cost, total   $ 1.2 $ 0.9 $ 1.2
Selling, General and Administrative Expenses [Member] | United Kingdom Plan [Member] | Forecast [Member]        
Defined Benefit Plan Disclosure [Line Items]        
Net service cost, total $ 1.6      
v3.20.4
Pension and Post-Employment Benefits - Defined Benefit Pension Plan (Detail) - United Kingdom Plan [Member] - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Plan assumptions at December 31, (%):      
Discount rate 1.36% 1.95% 2.78%
Inflation rate 2.35% 2.25% 2.25%
Rate of return on plan assets - overall on bid-value 2.00% 2.50% 3.05%
Plan asset allocation by category (%):      
Total plan asset allocation by category 100.00% 100.00% 100.00%
Cash [Member]      
Plan asset allocation by category (%):      
Total plan asset allocation by category 4.00% 4.00% 5.00%
Defined Benefit Plan Debt Securities And Insurance Contracts [Member]      
Plan asset allocation by category (%):      
Total plan asset allocation by category 86.00% 86.00% 83.00%
Defined Benefit Plan Equity Securities And Real Estate [Member]      
Plan asset allocation by category (%):      
Total plan asset allocation by category 10.00% 10.00% 12.00%
United Kingdom [Member]      
Plan net pension (credit)/charge:      
Interest cost on PBO $ 11.2 $ 15.2 $ 15.0
Expected return on plan assets (17.8) (22.0) (22.2)
Amortization of prior service credit (0.5) (0.9) (1.1)
Amortization of actuarial net losses 0.9 (0.0) 2.0
Plan net pension (credit)/charge $ (6.2) $ (7.7) $ (6.3)
v3.20.4
Pension and Post-Employment Benefits - Movements in PBO and Fair Value of Plan Assets (Detail) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Change in PBO:      
Actuarial gains $ (7.7) $ 9.5 $ (15.7)
Fair value of plan assets:      
Opening balance 115.9    
Closing balance 118.0 115.9  
United Kingdom Plan [Member]      
Change in PBO:      
Benefits paid (45.5) (42.1)  
Fair value of plan assets:      
Opening balance 816.9 739.1  
Benefits paid (45.5) (42.1)  
Actual contributions by employer 0.0 0.4  
Actual return on assets 77.6 89.1  
Exchange effect 27.7 30.4  
Closing balance 876.7 816.9 739.1
German Plan [Member]      
Change in PBO:      
Opening balance 13.3 11.3  
Interest cost 0.1 0.2 0.2
Service cost 0.1 0.1  
Benefits paid (0.3) (0.3)  
Actuarial gains 0.8 2.2  
Exchange effect 1.2 (0.2)  
Closing balance 15.2 13.3 11.3
Fair value of plan assets:      
Benefits paid (0.3) (0.3)  
Pension Benefit Obligation [Member] | United Kingdom Plan [Member]      
Change in PBO:      
Opening balance 701.0 643.2  
Interest cost 11.2 15.2  
Service cost 1.2 0.9  
Benefits paid (45.5) (42.1)  
Actuarial gains 61.1 57.7  
Plan amendments 5.5 0.0  
Exchange effect 24.2 26.1  
Closing balance 758.7 701.0 $ 643.2
Fair value of plan assets:      
Benefits paid $ (45.5) $ (42.1)  
v3.20.4
Pension and Post-Employment Benefits - Fair Value of Pension Assets (Detail) - USD ($)
$ in Millions
Dec. 31, 2020
Dec. 31, 2019
Fair value of pension assets    
Total plan assets $ 118.0 $ 115.9
Non-US [Member]    
Fair value of pension assets    
Debt securities 843.8 787.0
Cash 32.9 29.9
Total plan assets 876.7 816.9
Non-US [Member] | Debt Securities Issued by Non-U.S. Government and Government Agencies [Member]    
Fair value of pension assets    
Debt securities 99.5 98.4
Non-US [Member] | Corporate Debt Securities [Member]    
Fair value of pension assets    
Debt securities 488.0 445.9
Non-US [Member] | Real Estate [Member]    
Fair value of pension assets    
Debt securities 40.2 41.7
Non-US [Member] | Insurance Contracts [Member]    
Fair value of pension assets    
Debt securities 167.4 157.9
Non-US [Member] | Investments Measured At Net Asset Value [Member]    
Fair value of pension assets    
Debt securities 51.0 46.8
Non-US [Member] | Other Financial Derivatives [Member]    
Fair value of pension assets    
Debt securities (2.3) (3.7)
Non-US [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]    
Fair value of pension assets    
Debt securities 139.7 140.1
Cash 32.9 29.9
Total plan assets 172.6 170.0
Non-US [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Debt Securities Issued by Non-U.S. Government and Government Agencies [Member]    
Fair value of pension assets    
Debt securities 99.5 98.4
Non-US [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Real Estate [Member]    
Fair value of pension assets    
Debt securities 40.2 41.7
Non-US [Member] | Significant Other Observable Inputs (Level 2) [Member]    
Fair value of pension assets    
Debt securities 485.7 442.2
Total plan assets 485.7 442.2
Non-US [Member] | Significant Other Observable Inputs (Level 2) [Member] | Corporate Debt Securities [Member]    
Fair value of pension assets    
Debt securities 488.0 445.9
Non-US [Member] | Significant Other Observable Inputs (Level 2) [Member] | Other Financial Derivatives [Member]    
Fair value of pension assets    
Debt securities (2.3) (3.7)
Non-US [Member] | Significant Unobservable Inputs (Level 3) [Member]    
Fair value of pension assets    
Debt securities 167.4 157.9
Total plan assets 167.4 157.9
Non-US [Member] | Significant Unobservable Inputs (Level 3) [Member] | Insurance Contracts [Member] | Other Asset Backed Securitites [Member]    
Fair value of pension assets    
Debt securities $ 167.4 $ 157.9
v3.20.4
Pension and Post-Employment Benefits - Reconciliation of Fair Value of Plan Assets Measured Using Significant Unobservable Inputs (Detail) - United Kingdom Plan [Member] - Significant Unobservable Inputs (Level 3) [Member] - Other Assets [Member] - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Beginning balance $ 157.9 $ 142.5
Realized/unrealized gains/(losses):    
Relating to assets still held at the reporting date 10.8 16.0
Purchases, issuances and settlements (6.6) (6.5)
Exchange effect 5.3 5.9
Ending balance $ 167.4 $ 157.9
v3.20.4
Pension and Post-Employment Benefits - Plan Net Pension Credit (Detail) - United Kingdom Plan [Member] - Nonoperating Income (Expense) [Member]
$ in Millions
12 Months Ended
Dec. 31, 2020
USD ($)
Defined Benefit Plan Disclosure [Line Items]  
Interest cost on PBO $ 7.5
Expected return on plan assets (15.4)
Amortization of prior service credit 0.3
Amortization of actuarial net losses 1.6
Net pension credit total $ (6.0)
v3.20.4
Pension and Post-Employment Benefits - Expected Benefit Payments (Detail) - United Kingdom Plan [Member]
$ in Millions
Dec. 31, 2020
USD ($)
Defined Benefit Plan Disclosure [Line Items]  
2020 $ 43.9
2021 36.9
2022 35.9
2023 36.1
2024 35.8
2025-2029 $ 172.0
v3.20.4
Pension and Post-Employment Benefits - Unfunded Defined Benefit Pension Plan (Detail) - German Plan [Member] - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Plan net pension charge:      
Interest cost on PBO $ 0.1 $ 0.2 $ 0.2
Amortization of actuarial net loss 0.8 0.3 0.4
Plan net pension (credit)/charge $ 0.9 $ 0.5 $ 0.6
Plan assumptions at December 31, (%):      
Discount rate 0.40% 0.80% 1.90%
Inflation rate 1.50% 1.75% 1.75%
Rate of increase in compensation levels 2.75% 2.75% 2.75%
v3.20.4
Income Taxes - Roll-forward of Unrecognized Tax Benefits and Associated Accrued Interest and Penalties (Detail) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Income Tax Contingency [Line Items]      
Opening balance at January 1 $ 16.4 $ 14.0 $ 2.5
Additions for tax positions of prior periods 1.0 2.4 12.1
Reductions due to lapsed statute of limitations     (0.6)
Reductions for tax positions of prior periods (1.4)    
Closing balance at 31 December 16.0 16.4 14.0
Current 0.0 0.0 0.0
Non-current 16.0 16.4 14.0
Interest and Penalties [Member]      
Income Tax Contingency [Line Items]      
Opening balance at January 1 2.0 0.6 0.3
Additions for tax positions of prior periods 0.6 1.4 0.4
Reductions due to lapsed statute of limitations     (0.1)
Reductions for tax positions of prior periods (0.2)    
Closing balance at 31 December 2.4 2.0 0.6
Current 0.0 0.0 0.0
Non-current 2.4 2.0 0.6
Unrecognized Tax Benefits [Member]      
Income Tax Contingency [Line Items]      
Opening balance at January 1 14.4 13.4 2.2
Additions for tax positions of prior periods 0.4 1.0 11.7
Reductions due to lapsed statute of limitations     (0.5)
Reductions for tax positions of prior periods (1.2)    
Closing balance at 31 December 13.6 14.4 13.4
Current 0.0 0.0 0.0
Non-current $ 13.6 $ 14.4 $ 13.4
v3.20.4
Income Taxes - Additional Information (Detail) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2015
Dec. 31, 2017
Income Tax Contingency [Line Items]          
Unrecognized tax benefits would impact effective tax rate if recognized $ 16.0        
Unrecognized tax benefit 16.0 $ 16.4 $ 14.0   $ 2.5
Income tax interest expense 0.2        
Increase in uncertain tax positions $ 1.0 2.4 12.1    
Income tax examination, description The Company and its U.S. subsidiaries remain open to examination by the IRS for years 2017 onwards under the statute of limitations. The Company’s subsidiaries in foreign tax jurisdictions are open to examination including Spain (2016 onwards), France (2017 onwards), Germany (2018 onwards), Switzerland (2018 onwards) and the U.K. (2018 onwards).        
Cash payments for income taxes $ 23.4 37.6 35.4    
Increase to income tax expense 0.7        
Operating loss carry forwards 67.1        
Operating loss carryforward without expiration 1.3        
Deferred tax assets valuation allowance 1.1 0.8      
Deferred tax assets operating loss carry forwards net of valuation allowance 8.7        
Operating Loss Carryforwards expected to relieved 24.4        
Foreign exchange movements 0.2        
Effective Income Tax Rate Reconciliation, Change in Enacted Tax Rate, Amount 2.7        
Income Tax Reconciliation Innovation Incentive Amount 4.0        
Interest and Penalties [Member]          
Income Tax Contingency [Line Items]          
Unrecognized tax benefit 2.4 2.0 0.6   $ 0.3
Increase in uncertain tax positions 0.6 $ 1.4 $ 0.4    
Italian Tax Authorities [Member]          
Income Tax Contingency [Line Items]          
Unrecognized tax benefit 3.4        
State [Member]          
Income Tax Contingency [Line Items]          
Operating loss carry forwards 10.7        
Foreign [Member]          
Income Tax Contingency [Line Items]          
Operating loss carry forwards 30.6        
United States [Member]          
Income Tax Contingency [Line Items]          
Unrecognized tax benefit 12.4        
Operating loss carry forwards $ 36.5        
Non-US [Member] | Earliest Tax Year [Member]          
Income Tax Contingency [Line Items]          
Open tax year 2011        
Non-US [Member] | Latest Tax Year [Member]          
Income Tax Contingency [Line Items]          
Open tax year 2014        
Non-US [Member] | Historical Impairment Of Subsidiaries [Member]          
Income Tax Contingency [Line Items]          
Increase in uncertain tax positions       $ 1.2  
Decrease in uncertain tax positions $ 1.2        
Other Non Significant Items Inclusive Of Interest And Penalties 0.2        
Non-US [Member] | Historical Impairment Of Subsidiaries [Member] | Interest and Penalties [Member]          
Income Tax Contingency [Line Items]          
Increase to income tax expense $ 0.2        
v3.20.4
Income Taxes - Sources of Income before Income Taxes (Detail) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Income Tax Disclosure [Abstract]      
Domestic $ (0.7) $ 52.4 $ 37.1
Foreign 40.4 98.0 94.5
Income before income tax expense $ 39.7 $ 150.4 $ 131.6
v3.20.4
Income Taxes - Components of Income Tax Expense (Detail) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Current:      
Federal $ 6.1 $ 13.8 $ 12.5
State and local 0.5 2.3 2.0
Foreign 6.8 22.9 26.6
Total Current Income Tax 13.4 39.0 41.1
Deferred:      
Federal (2.8) (3.0) 4.2
State and local (0.4) (0.5) 0.3
Foreign 0.8 2.7 1.0
Total Deferred Income Tax (2.4) (0.8) 5.5
Total $ 11.0 $ 38.2 $ 46.6
v3.20.4
Income Taxes - Factors Effecting Effective Tax Rate from U.S. Federal Statutory Rate (Detail)
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Income Tax Disclosure [Abstract]      
Statutory rate 21.00% 21.00% 21.00%
Foreign income inclusions 7.10% 0.30% 0.70%
Foreign tax rate differential 4.20% (0.30%) (0.80%)
Tax charge/(credit) from previous years 3.70% 1.80% 0.70%
Net charge/(credit) from unrecognized tax benefits (1.70%) 1.10% 0.30%
Foreign currency transactions (4.50%) (1.00%) 1.20%
Effect of U.S. tax law change 0.00% 0.60% 9.30%
Tax on unremitted earnings 0.30% (0.10%) 0.90%
Non-deductible foreign interest 0.70% 0.80% 1.30%
Effective Income Tax Rate Reconciliation, Change in Enacted Tax Rate, Percent 6.90% 0.00% 0.00%
State and local taxes 1.50% 1.40% 1.20%
US incentive for foreign derived intangible income (1.50%) (0.50%) (1.00%)
Innovation incentives – current year (4.90%) (0.60%) (0.60%)
Innovation incentives – prior years (5.30%) 0.00% 0.00%
Non-deductible officer compensation 1.80% 0.20% 0.40%
Other items and adjustments, net (1.60%) 0.70% 0.80%
Effective Income Tax Rate 27.70% 25.40% 35.40%
v3.20.4
Income Taxes - Details of Deferred Tax Assets and Liabilities (Detail) - USD ($)
$ in Millions
Dec. 31, 2020
Dec. 31, 2019
Deferred tax assets:    
Stock compensation $ 5.3 $ 6.7
Net operating loss carry forwards 9.8 7.3
Other intangible assets 10.6 6.0
Accretion expense 3.2 3.3
Restructuring provision 1.4 0.0
Foreign tax credits 2.0 3.6
Operating lease liabilities 9.2 7.4
Other 6.9 5.9
Subtotal 48.4 40.2
Less valuation allowance (1.1) (0.8)
Total net deferred tax assets 47.3 39.4
Deferred tax liabilities:    
Property, plant and equipment (21.3) (19.5)
Intangible assets including goodwill (28.3) (28.1)
Pension asset (20.5) (18.2)
Investment impairment recapture (0.0) (1.0)
Customer relationships (4.4) (4.2)
Unremitted overseas earnings (2.0) (1.0)
Right-of-use assets (9.2) (7.4)
Other (0.9) (0.5)
Total deferred tax liabilities (86.6) (79.9)
Net deferred tax liability (39.3) (40.5)
Deferred tax assets 7.6 9.1
Deferred tax liabilities (46.9) (49.6)
Net deferred tax liability $ (39.3) $ (40.5)
v3.20.4
Long-Term Debt - Schedule of Long-Term Debt (Detail) - USD ($)
$ in Millions
Dec. 31, 2020
Dec. 31, 2019
Debt Instrument [Line Items]    
Deferred finance costs $ (0.0) $ (1.4)
Long-term debt 0.0 58.6
Less current portion (0.0) (0.0)
Long-term debt, net of current portion 0.0 58.6
Term Loan [Member]    
Debt Instrument [Line Items]    
Long-term debt 0.0 0.0
Revolving Credit Facility [Member]    
Debt Instrument [Line Items]    
Long-term debt $ 0.0 $ 60.0
v3.20.4
Long-Term Debt - Schedule of Long-Term Debt (Parenthetical) (Detail) - Revolving Credit Facility [Member] - USD ($)
$ in Millions
12 Months Ended
Sep. 16, 2020
Dec. 31, 2020
Sep. 26, 2019
Debt Instrument [Line Items]      
Revolving credit borrowing Capacity     $ 250.0
Refinancing costs capitalized $ 0.3 $ 1.5  
Due date of revolving credit Sep. 25, 2024 Sep. 25, 2023  
Accordion Feature [Member]      
Debt Instrument [Line Items]      
Revolving credit borrowing Capacity     $ 125.0
v3.20.4
Long-Term Debt - Additional Information (Detail) - USD ($)
$ in Millions
12 Months Ended
Sep. 16, 2020
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Debt Instrument [Line Items]        
Amortization of deferred finance costs   $ 0.4 $ 1.0 $ 0.7
Weighted average rate of interest on borrowings   2.20% 3.14%  
Payments of interest on long-term debt   $ 0.8 $ 4.8 6.5
Net cash outflows in respect of refinancing costs   0.3 1.5 $ 0.0
Deferred finance costs, net   $ 1.3 $ 1.4  
Revolving Credit Facility [Member]        
Debt Instrument [Line Items]        
Due date of revolving credit Sep. 25, 2024 Sep. 25, 2023    
Deferred finance costs capitalized $ 0.3 $ 1.5    
v3.20.4
Long-Term Debt - Summary of Debt Refinancing Costs (Detail) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]      
Gross cost at January 1 $ 1.5 $ 2.7  
Capitalized in the year 0.3 1.5  
Written down in the year 0.0 (2.7)  
Gross cost 1.8 1.5 $ 2.7
Accumulated amortization,Beginning Balance (0.1) (1.8)  
Amortization in the year (0.4) (1.0) (0.7)
Amortization written down in the year 0.0 2.7  
Accumulated amortization,Ending balance (0.5) (0.1) $ (1.8)
Deferred finance costs, net $ 1.3 $ 1.4  
v3.20.4
Plant Closure Provisions - Movements in Plant Closure and Restructuring Provisions (Detail) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Restructuring and Related Activities [Abstract]      
Beginning Balance $ 49.3 $ 49.5 $ 46.1
Charge for the period excluding restructuring 5.1 4.4 6.8
Restructuring 7.5 0.0 0.0
Utilized in the period (4.1) (4.4) (3.1)
Exchange effect 0.7 (0.2) (0.3)
Ending Balance 58.5 49.3 49.5
Due within one year (6.6) (5.6) (5.9)
Due after one year $ 51.9 $ 43.7 $ 43.6
v3.20.4
Plant Closure Provisions - Additional Information (Detail) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Restructuring Cost and Reserve [Line Items]      
Expenditure $ 4.1 $ 4.4 $ 3.1
Operating Segments [Member] | Tetra Ethyl Lead [Member] | Operating Segments [Member]      
Restructuring Cost and Reserve [Line Items]      
Additional provision restructuring charges plant closure 7.5    
Remediation [Member]      
Restructuring Cost and Reserve [Line Items]      
Accretion expense recognized 3.7    
Remediation charge for changes in the scope and cost of future remediation activities 1.4    
Expenditure $ 4.1 $ 4.4 $ 3.1
v3.20.4
Fair Value Measurements - Carrying Amount and Fair Values of the Company's Assets and Liabilities Measured on a Recurring Basis (Detail) - Recurring [Member] - USD ($)
$ in Millions
Dec. 31, 2020
Dec. 31, 2019
Carrying Amount [Member]    
Non-derivatives:    
Cash and cash equivalents $ 105.3 $ 75.7
Non-derivatives:    
Long-term debt (including current portion) 0.0 58.6
Finance leases (including current portion) 0.6 1.5
Carrying Amount [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Foreign Currency Forward Exchange Contracts [Member]    
Derivatives (Level 1 measurement):    
Foreign currency forward exchange contracts 0.0 0.8
Derivatives (Level 1 measurement):    
Foreign currency forward exchange contracts 0.5 0.0
Carrying Amount [Member] | Significant Unobservable Inputs (Level 3) [Member]    
Non-financial liabilities (Level 3 measurement):    
Stock equivalent units 17.2 24.6
Fair Value [Member]    
Non-derivatives:    
Cash and cash equivalents 105.3 75.7
Non-derivatives:    
Long-term debt (including current portion) 0.0 58.6
Finance leases (including current portion) 0.6 1.5
Fair Value [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Foreign Currency Forward Exchange Contracts [Member]    
Derivatives (Level 1 measurement):    
Foreign currency forward exchange contracts 0.0 0.8
Derivatives (Level 1 measurement):    
Foreign currency forward exchange contracts 0.5 0.0
Fair Value [Member] | Significant Unobservable Inputs (Level 3) [Member]    
Non-financial liabilities (Level 3 measurement):    
Stock equivalent units $ 17.2 $ 24.6
v3.20.4
Derivative Instruments and Risk Management - Additional Information (Detail) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Derivative [Line Items]    
Interest rate swaps notional value $ 0.0 $ 0.0
Foreign currency forward exchange contracts notional value $ 127.2 108.9
Maximum [Member]    
Derivative [Line Items]    
Maturity period of foreign currency forward exchange contracts 1 year  
Not Designated as Hedging Instrument [Member] | Foreign Currency Forward Exchange Contracts [Member] | Other net income/(expense) [Member]    
Derivative [Line Items]    
Amount of gain/(loss) recognized in income $ 1.5 1.5
Designated as Hedging Instrument [Member] | Interest Rate Swaps [Member] | Accumulated Other Comprehensive Loss [Member]    
Derivative [Line Items]    
Amount of gain/(loss) recognized in income   $ 1.9
v3.20.4
Commitments and Contingencies - Additional Information (Detail) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Other Commitments [Line Items]    
Guarantees $ 9.9 $ 4.7
Minimum [Member]    
Other Commitments [Line Items]    
Fixed maturity guarantee remaining term 1 month  
Maximum [Member]    
Other Commitments [Line Items]    
Fixed maturity guarantee remaining term 3 years  
Additional Cost To Complete Wip [Member]    
Other Commitments [Line Items]    
Capital commitments $ 14.7 $ 4.0
v3.20.4
Stockholders' Equity - Stockholder's Equity (Detail) - shares
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Equity [Abstract]      
Common Stock, Beginning balance 29,554,500 29,554,500 29,554,500
Exercise of options, Common Stock 0 0 0
Stock purchases, Common Stock 0 0 0
Common Stock, Ending balance 29,554,500 29,554,500 29,554,500
Treasury Stock, Beginning balance 5,047,278 5,121,000 5,204,000
Exercise of options, Treasury Stock (109,000) (104,000) (103,000)
Stock purchases, Treasury Stock 21,000 30,000 20,000
Ending balance, Treasury Stock 4,958,599 5,047,278 5,121,000
v3.20.4
Stockholders' Equity - Additional Information (Detail) - shares
Dec. 31, 2020
Dec. 31, 2019
Equity [Abstract]    
Common stock, shares authorized 40,000,000 40,000,000
v3.20.4
Stock-Based Compensation Plans - Additional Information (Detail)
$ in Millions
3 Months Ended 12 Months Ended
Dec. 31, 2020
USD ($)
Employee
shares
Dec. 31, 2020
USD ($)
Stock_Plan
shares
Dec. 31, 2019
USD ($)
Dec. 31, 2018
USD ($)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Stock option compensation   $ 5.8 $ 6.6 $ 4.9
Accrued liabilities $ 129.8 $ 129.8 154.0  
Stock Options Plan [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Range of stock vesting period 2 years      
Expiration term for stock granted   10 years    
Aggregate number of shares of common stock reserved for issuance which can be granted | shares 2,550,000 2,550,000    
Number of stock option plans | Stock_Plan   2    
Number exercisable and fully vested | shares 42,657 42,657    
Fully vested stock options with performance conditions attached | shares 15,611 15,611    
Stock option compensation   $ 5.8 6.6 4.9
Total intrinsic value exercised   4.9 3.5 3.2
Total compensation cost related to non-vested stock options not yet recognized $ 6.8 $ 6.8    
Expected compensation cost recognized over the weighted-average period   1 year 7 months 2 days    
Current tax benefit related to stock option compensation   $ 1.6 1.5  
Share-based Goods and Nonemployee Services Transaction, Modification of Terms, Incremental Compensation Cost $ 2.4      
Number of Grantees Affected | Employee 14      
Stock Options Plan [Member] | Minimum [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Range of stock vesting period   2 years    
Stock Options Plan [Member] | Maximum [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Range of stock vesting period   5 years    
Stock Equivalent Units [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Range of stock vesting period 2 years      
Expiration term for stock granted   10 years    
Fully vested stock options with performance conditions attached | shares 46,614 46,614    
Total intrinsic value exercised   $ 6.3 7.3 2.7
Expected compensation cost recognized over the weighted-average period   1 year 11 months 23 days    
Accrued liabilities $ 17.2 $ 17.2    
Number of exercisable SEUs | shares 53,146 53,146    
Compensation cost   $ 1.9 $ 20.1 $ 5.7
Number of Grantees Affected | Employee 61      
Stock Equivalent Units [Member] | Minimum [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Range of stock vesting period   2 years    
Stock Equivalent Units [Member] | Maximum [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Range of stock vesting period   5 years    
v3.20.4
Stock-Based Compensation Plans - Assumptions Used to Determine Grant-Date Fair Value of Options (Detail) - Black-Scholes Model [Member]
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Dividend yield 1.18% 1.09% 1.11%
Expected life 5 years 5 years 5 years
Volatility 27.00% 26.80% 25.60%
Risk free interest rate 1.13% 2.48% 2.74%
v3.20.4
Stock-Based Compensation Plans - Summary of Transactions of the Company's Stock Option Plans (Detail) - Stock Options Plan [Member]
12 Months Ended
Dec. 31, 2020
$ / shares
shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Outstanding, Number of Options, Beginning balance | shares 504,459
Exercised, Number of Options | shares (108,518)
Forfeited, Number of Options | shares (27,417)
Outstanding, Number of Options, Ending balance | shares 442,893
Outstanding, Weighted Average Exercise Price, Beginning balance $ 33.05
Exercised, Weighted Average Exercise Price 20.31
Forfeited, Weighted Average Exercise Price 41.93
Outstanding, Weighted Average Exercise Price, Ending balance 32.49
Outstanding, Weighted Average Grant-Date Fair Value 41.35
Exercised, Weighted Average Grant-Date Fair Value 45.17
Forfeited, Weighted Average Grant-Date Fair Value 36.41
Outstanding, Weighted Average Grant-Date Fair Value $ 45.31
Discount [Member]  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Granted, Number of Options | shares 63,950
Granted, Weighted Average Exercise Price $ 1.11
Granted, Weighted Average Grant-Date Fair Value $ 76.80
Market Value [Member]  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Granted, Number of Options | shares 10,419
Granted, Weighted Average Exercise Price $ 95.70
Granted, Weighted Average Grant-Date Fair Value $ 18.69
v3.20.4
Stock-Based Compensation Plans - Assumptions Used to Determine Fair Value of SEUs (Detail) - Stock Equivalent Units [Member]
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Dividend yield 1.15% 0.99% 1.44%
Expected life 5 years 5 years 5 years
Volatility 39.90% 26.60% 27.20%
Risk free interest rate 0.17% 1.62% 2.46%
v3.20.4
Stock-Based Compensation Plans - Summarizes Transactions of SEUs (Detail) - Stock Equivalent Units [Member]
12 Months Ended
Dec. 31, 2020
$ / shares
shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Outstanding, Number of SEUs, Beginning balance | shares 390,816
Granted at discount, Number of SEUs | shares 113,107
Granted at market value, Number of SEUs | shares 3,634
Exercised, Number of SEUs | shares (93,057)
Forfeited, Number of SEUs | shares (24,336)
Outstanding, Number of SEUs, Ending balance | shares 390,164
Outstanding, Weighted Average Exercise Price, Beginning balance $ 3.69
Granted at discount, Weighted Average Exercise Price 0.00
Granted at market value, Weighted Average Exercise Price 95.70
Exercised, Weighted Average Exercise Price 0.82
Forfeited, Weighted Average Exercise Price 0.60
Outstanding, Weighted Average Exercise Price, Ending balance 4.35
Outstanding, Weighted Average Grant-Date Fair Value 59.91
Granted at discount, Weighted Average Grant-Date Fair Value 76.63
Granted at market value, Weighted Average Grant-Date Fair Value 18.69
Exercised, Weighted Average Grant-Date Fair Value 60.04
Forfeited, Weighted Average Grant-Date Fair Value 65.99
Outstanding, Weighted Average Grant-Date Fair Value $ 63.96
v3.20.4
Reclassifications out of Accumulated Other Comprehensive Loss - Summary of Reclassifications out of Accumulated Other Comprehensive Loss (Detail)
$ in Millions
12 Months Ended
Dec. 31, 2020
USD ($)
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]  
Total reclassifications $ (1.1)
Defined Benefit Pension Plan Items [Member]  
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]  
Total reclassifications (1.1)
Reclassification Out of Accumulated Other Comprehensive Income/(Loss) [Member]  
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]  
Total before tax 1.2
Income tax expense (0.1)
Total reclassifications 1.1
Reclassification Out of Accumulated Other Comprehensive Income/(Loss) [Member] | Defined Benefit Pension Plan Items [Member]  
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]  
Amortization of prior service credit (0.5)
Amortization of actuarial net losses $ 1.7
v3.20.4
Reclassifications out of Accumulated Other Comprehensive Loss - Changes in Accumulated Other Comprehensive Loss (Detail) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Accumulated Other Comprehensive Income (Loss) [Line Items]      
Beginning Balance $ 918.5    
Other comprehensive income before reclassifications 23.7    
Amounts reclassified from AOCL 1.1    
Actuarial net gains arising during the year (7.7) $ 9.5 $ (15.7)
Total other comprehensive income/(loss) 17.1    
Ending Balance 944.4 918.5  
Accumulated Other Comprehensive Loss [Member]      
Accumulated Other Comprehensive Income (Loss) [Line Items]      
Beginning Balance (74.4)    
Actuarial net gains arising during the year (7.7) 9.5 $ (15.7)
Ending Balance (57.3) (74.4)  
Defined Benefit Pension Plan Items [Member]      
Accumulated Other Comprehensive Income (Loss) [Line Items]      
Beginning Balance (9.3)    
Other comprehensive income before reclassifications 0.0    
Amounts reclassified from AOCL 1.1    
Actuarial net gains arising during the year (7.7)    
Total other comprehensive income/(loss) (6.6)    
Ending Balance (15.9) (9.3)  
Foreign Currency Translation Items [Member]      
Accumulated Other Comprehensive Income (Loss) [Line Items]      
Beginning Balance (65.1)    
Other comprehensive income before reclassifications 23.7    
Amounts reclassified from AOCL (0.0)    
Actuarial net gains arising during the year 0.0    
Total other comprehensive income/(loss) 23.7    
Ending Balance $ (41.4) $ (65.1)  
v3.20.4
Related Party Transactions - Additional Information (Detail) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Smith, Gambrell & Russell, LLP [Member]      
Related Party Transaction [Line Items]      
Fees payable to Smith, Gambrell & Russell $ 0.8 $ 0.5 $ 0.3
Amount due to related party 0.0 0.1  
European Metal Recycling Limited [Member]      
Related Party Transaction [Line Items]      
Amount due to related party 0.0 0.0  
Tendering process to select best buyer of scrap metal 0.2 $ 0.4 $ 0.3
Advan Six [Member]      
Related Party Transaction [Line Items]      
Amount due to related party 0.0    
Tendering process to select best buyer of scrap metal $ 0.3