Accumulated Other Comprehensive Loss - Accumulated Other Comprehensive Loss Rollforward (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Accumulated Other Comprehensive Loss
Beginning balance	$ 2,706.9	$ 1,629.4	$ 2,684.3	$ 1,625.2
Other comprehensive income (loss) before reclassifications, net of taxes	(1.7)	(31.0)	2.3	(37.1)
Reclassification from AOCI, Current Period, Net of Tax, Attributable to Parent	0.2	0.1	0.3	0.2
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent, Total	(1.5)	(30.9)	2.6	(36.9)
Ending balance	2,807.2	1,614.0	2,807.2	1,614.0
AOCI Attributable to Parent [Member]
Accumulated Other Comprehensive Loss
Beginning balance	(53.9)	(27.7)	(58.0)	(21.7)
Ending balance	(55.4)	(58.6)	(55.4)	(58.6)
Accumulated Foreign Currency Adjustment Attributable to Parent [Member]
Accumulated Other Comprehensive Loss
Beginning balance	(46.5)	(21.3)	(50.5)	(15.2)
Other comprehensive income (loss) before reclassifications, net of taxes	(1.7)	(31.0)	2.3	(37.1)
Reclassification from AOCI, Current Period, Net of Tax, Attributable to Parent	0.0	0.0	0.0	0.0
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent, Total	(1.7)	(31.0)	2.3	(37.1)
Ending balance	(48.2)	(52.3)	(48.2)	(52.3)
Pension liability adjustments, net of taxes
Accumulated Other Comprehensive Loss
Beginning balance	(7.4)	(6.4)	(7.5)	(6.5)
Other comprehensive income (loss) before reclassifications, net of taxes	0.0	0.0	0.0	0.0
Reclassification from AOCI, Current Period, Net of Tax, Attributable to Parent	0.2	0.1	0.3	0.2
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent, Total	0.2	0.1	0.3	0.2
Ending balance	$ (7.2)	$ (6.3)	$ (7.2)	$ (6.3)