Accumulated Other Comprehensive Loss - Schedule of Components of Accumulated Other Comprehensive Loss (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Accumulated Other Comprehensive Income Loss [Line Items]
Balance	$ 1,446.1	$ 1,322.0	$ 1,495.1
Other comprehensive loss before reclassifications	38.3	(21.6)
Amounts reclassified from accumulated other comprehensive loss	20.8	10.9
Total other comprehensive income (loss)	59.1	(10.7)	(64.6)
Balance	1,510.2	1,446.1	1,322.0
Unrecognized Net Defined Benefit Plan Costs
Accumulated Other Comprehensive Income Loss [Line Items]
Balance	(22.4)	(15.4)
Other comprehensive loss before reclassifications	(16.6)	(6.2)
Amounts reclassified from accumulated other comprehensive loss	(1.4)	(0.8)
Total other comprehensive income (loss)	(18.0)	(7.0)
Balance	(40.4)	(22.4)	(15.4)
Change in Fair Value of Derivatives Products
Accumulated Other Comprehensive Income Loss [Line Items]
Balance	(6.9)	(5.8)
Other comprehensive loss before reclassifications	0.3	(12.8)
Amounts reclassified from accumulated other comprehensive loss	22.2	11.7
Total other comprehensive income (loss)	22.5	(1.1)
Balance	15.6	(6.9)	(5.8)
Foreign Currency Translation
Accumulated Other Comprehensive Income Loss [Line Items]
Balance	(89.4)	(86.8)
Other comprehensive loss before reclassifications	54.6	(2.6)
Total other comprehensive income (loss)	54.6	(2.6)
Balance	(34.8)	(89.4)	(86.8)
Accumulated Other Comprehensive Income (Loss)
Accumulated Other Comprehensive Income Loss [Line Items]
Balance	(118.7)	(108.0)	(45.0)
Total other comprehensive income (loss)	59.1	(10.7)	(64.6)
Balance	$ (59.6)	$ (118.7)	$ (108.0)