Accumulated Other Comprehensive Income (Loss) - Changes in Company’s AOCI, Net of Tax, By Component (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Balance	$ 1,079.2	$ (1,371.1)
Balance	1,025.7	(1,473.6)
Other comprehensive (loss) income before reclassifications within the translation component, amount excluded		(2.2)
Accumulated Other Comprehensive Income (Loss)
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Balance	7.6	(360.0)
Other comprehensive income (loss) before reclassifications	(43.0)	5.0
Amounts reclassified from AOCI	5.0	1.3
Net current-period other comprehensive income (loss)	(38.0)	6.3
Balance	(30.4)	(353.7)
Translation adjustment
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Balance	14.2	(352.1)
Other comprehensive income (loss) before reclassifications	(43.0)	4.7
Amounts reclassified from AOCI	0.0	0.0
Net current-period other comprehensive income (loss)	(43.0)	4.7
Balance	(28.8)	(347.4)
Hedges | Foreign exchange forward contracts
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Balance	(0.1)	(1.9)
Other comprehensive income (loss) before reclassifications	0.0	0.0
Amounts reclassified from AOCI	0.0	0.0
Net current-period other comprehensive income (loss)	0.0	0.0
Balance	(0.1)	(1.9)
Hedges | Interest rate swap
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Balance	0.0	5.3
Other comprehensive income (loss) before reclassifications	0.0	0.3
Amounts reclassified from AOCI	0.0	0.0
Net current-period other comprehensive income (loss)	0.0	0.3
Balance	0.0	5.6
Pension and Other Post-retirement Benefits
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Balance	(6.1)	(12.6)
Other comprehensive income (loss) before reclassifications	0.0	0.0
Amounts reclassified from AOCI	5.0	1.3
Net current-period other comprehensive income (loss)	5.0	1.3
Balance	(1.1)	(11.3)
Other
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Balance	(0.4)	1.3
Other comprehensive income (loss) before reclassifications	0.0	0.0
Amounts reclassified from AOCI	0.0	0.0
Net current-period other comprehensive income (loss)	0.0	0.0
Balance	$ (0.4)	$ 1.3