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Accumulated Other Comprehensive Income (Loss) - Schedule of Accumulated Other Comprehensive Income (Loss) (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Accumulated Other Comprehensive Income (Loss) [Roll Forward]    
Balance at start of period $ 742.7 $ 773.7
Other comprehensive loss before reclassifications, net of tax 18.8 (65.5)
Amounts reclassified from accumulated other comprehensive income (loss), net of tax 9.9 7.0
Balance at end of period 864.8 742.7
Accumulated Other Comprehensive Income (Loss)    
Accumulated Other Comprehensive Income (Loss) [Roll Forward]    
Balance at start of period (564.2) (505.7)
Balance at end of period (535.5) (564.2)
Derivative Financial Instruments    
Accumulated Other Comprehensive Income (Loss) [Roll Forward]    
Balance at start of period (3.1) (0.2)
Other comprehensive loss before reclassifications, net of tax 6.3 (3.2)
Amounts reclassified from accumulated other comprehensive income (loss), net of tax 0.8 0.3
Balance at end of period 4.0 (3.1)
Foreign Currency Adjustments    
Accumulated Other Comprehensive Income (Loss) [Roll Forward]    
Balance at start of period (318.8) (299.5)
Other comprehensive loss before reclassifications, net of tax (23.4) (19.3)
Amounts reclassified from accumulated other comprehensive income (loss), net of tax 0.0 0.0
Balance at end of period (342.2) (318.8)
Unrecognized Pension and Other Post-retirement Benefit Costs    
Accumulated Other Comprehensive Income (Loss) [Roll Forward]    
Balance at start of period (242.3) (206.0)
Other comprehensive loss before reclassifications, net of tax 35.9 (43.0)
Amounts reclassified from accumulated other comprehensive income (loss), net of tax 9.1 6.7
Balance at end of period $ (197.3) $ (242.3)