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Income Taxes (Tables)
12 Months Ended
Dec. 31, 2022
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, 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
     —         —         —    
    
 
 
   
 
 
   
 
 
 
Non-current
   $ 13.6     $ 2.4     $ 16.0  
    
 
 
   
 
 
   
 
 
 
Opening balance at January 1, 2021
   $ 13.6     $ 2.4     $ 16.0  
Reductions for tax positions of prior periods
     (1.3     0.0       (1.3
Additions for tax positions of prior periods
     0.9       0.7       1.6  
    
 
 
   
 
 
   
 
 
 
Closing balance at 31 December, 2021
     13.2       3.1       16.3  
Current
     —         —         —    
    
 
 
   
 
 
   
 
 
 
Non-current
   $ 13.2     $ 3.1     $ 16.3  
    
 
 
   
 
 
   
 
 
 
Opening balance at January 1, 2022
   $ 13.2     $ 3.1     $ 16.3  
Reductions for tax positions of prior periods
     (3.1     —         (3.1
Additions for tax positions of prior periods
     0.1       0.1       0.2  
    
 
 
   
 
 
   
 
 
 
Closing balance at 31 December, 2022
     10.2       3.2       13.4  
Current
     —         —         —    
    
 
 
   
 
 
   
 
 
 
Non-current
   $ 10.2     $ 3.2     $ 13.4  
    
 
 
   
 
 
   
 
 
 
Sources of Income before Income Taxes
The sources of income before income taxes were as follows:
 
(in millions)
  
2022
    
2021
    
2020
 
Domestic
   $ 106.3      $ 53.2      $ (0.7
Foreign
     78.3        81.2        40.4  
    
 
 
    
 
 
    
 
 
 
     $ 184.6      $ 134.4      $ 39.7  
    
 
 
    
 
 
    
 
 
 
Components of Income Tax Expense
The components of income tax expense are summarized as
follows:
 
(in millions)
  
2022
 
  
2021
 
  
2020
 
Current:
                          
Federal
   $ 27.0      $ 12.4      $ 6.1  
State and local
     6.5        2.6        0.5  
Foreign
     23.1        19.4        6.8  
    
 
 
    
 
 
    
 
 
 
       56.6        34.4        13.4  
    
 
 
    
 
 
    
 
 
 
Deferred:
                          
Federal
     (3.7      (1.9      (2.8
State and local
     (0.7      (0.3      (0.4
Foreign
     (0.6      9.1        0.8  
    
 
 
    
 
 
    
 
 
 
       (5.0      6.9        (2.4
    
 
 
    
 
 
    
 
 
 
     $ 51.6      $ 41.3      $ 11.0  
    
 
 
    
 
 
    
 
 
 
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)
  
2022
   
2021
   
2020
 
Statutory rate
     21.0     21.0     21.0
Foreign income inclusions
     3.3       1.7       7.1  
Foreign tax rate differential
     0.9       1.0       4.2  
Tax charge/(credit) from previous years
     0.2       0.6       3.7  
Net charge/(credit) from unrecognized tax benefits
     (1.4     0.4       (1.7
Foreign currency transactions
     3.5       0.1       (4.5
Tax on unremitted earnings
     0.3       0.1       0.3  
Non-deductible
foreign interest
     —         —         0.7  
Change in U.K. statutory tax rate
     —         5.4       6.9  
State and local taxes
     2.2       1.3       1.5  
U.S. incentive for foreign derived intangible income
     (2.7     (1.5     (1.5
Innovation incentives – current year
     (0.8     (1.1     (4.9
Innovation incentives – prior years
     —         —         (5.3
Non-deductible
officer compensation
     1.4       0.2       1.8  
Tax on closure of legacy operations
     —         1.6       —    
Other items and adjustments, net
     0.1       (0.1     (1.6
    
 
 
   
 
 
   
 
 
 
       28.0     30.7     27.7
    
 
 
   
 
 
   
 
 
 
Details of Deferred Tax Assets and Liabilities
Details of deferred tax assets and liabilities are analyzed as follows:
 
(in millions)
  
2022
    
2021
 
Deferred tax assets:
                 
Stock compensation
   $ 3.7      $ 5.2  
Net operating loss carry forwards
     10.9        12.0  
Other intangible assets
     10.5        11.1  
Accretion expense
     3.2        3.2  
Restructuring provision
     1.7        2.0  
Employee related liabilities
     8.1        4.1  
Foreign tax credits
     0.8        1.9  
Operating lease liabilities
     11.8        10.6  
Inventory provisions
     6.6        3.6  
Research and experimental expenditure
     2.7        —    
Other
     4.8        3.8  
    
 
 
    
 
 
 
Subtotal
     64.8        57.5  
Less valuation allowance
     (0.7      (0.8
    
 
 
    
 
 
 
Total net deferred tax assets
   $ 64.1      $ 56.7  
    
 
 
    
 
 
 
Deferred tax liabilities:
                 
Property, plant and equipment
   $ (22.5    $ (23.6
Intangible assets including goodwill
     (30.3      (29.8
Pension asset
     (10.9      (38.2
Customer relationships
     (3.4      (4.5
Unremitted overseas earnings
     (1.9      (1.9
Right-of-use
assets
     (11.8      (10.6
Other
     (3.6      (2.5
    
 
 
    
 
 
 
Total deferred tax liabilities
   $ (84.4    $ (111.1
    
 
 
    
 
 
 
Net deferred tax liability
   $ (20.3    $ (54.4
    
 
 
    
 
 
 
Deferred tax assets
   $ 5.9      $ 6.4  
Deferred tax liabilities
     (26.2      (60.8
    
 
 
    
 
 
 
     $ (20.3    $ (54.4