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Accumulated Other Comprehensive Income (Loss) - Additional Information (Detail) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives      
Other income (expense), net $ 131.8 $ (37.8) $ (34.1)
Income tax expense (34.8) 3.5 3.5
Net income 177.6 184.8 38.3
Release of unrealized currency translation adjustment upon sale of investment in foreign entity, net of tax 12.9 3.4 0.0
Amount Reclassified from Accumulated Other Comprehensive Loss      
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives      
Income (loss) from continuing operations before income taxes 0.9 4.7 7.0
Income tax expense (0.2) (1.1) (1.7)
Net income 0.7 3.6 5.3
Amount Reclassified from Accumulated Other Comprehensive Loss | Amortization of actuarial losses      
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives      
Other income (expense), net 0.8 5.4 6.6
Amount Reclassified from Accumulated Other Comprehensive Loss | Amortization of prior service costs      
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives      
Other income (expense), net 0.1 0.1 0.4
Amount Reclassified from Accumulated Other Comprehensive Loss | Curtailments      
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives      
Other income (expense), net 0.0 0.3 0.0
Amount Reclassified from Accumulated Other Comprehensive Loss | Settlements      
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives      
Other income (expense), net $ 0.0 $ (1.1) $ 0.0