Goodwill and Intangible Assets - Goodwill (Details) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2023	Dec. 31, 2022
Goodwill [Roll Forward]
Goodwill, beginning of period	$ 3,490.4
Purchase accounting adjustments	80.6
Currency translation adjustments	(21.3)
Goodwill, end of period	3,549.7
CSCA
Goodwill [Roll Forward]
Goodwill, beginning of period	2,044.4
Purchase accounting adjustments	35.2
Currency translation adjustments	(2.0)
Goodwill, end of period	2,077.6
Accumulated impairments	6.1	$ 6.1
CSCI
Goodwill [Roll Forward]
Goodwill, beginning of period	1,446.0
Purchase accounting adjustments	45.4
Currency translation adjustments	(19.3)
Goodwill, end of period	1,472.1
Accumulated impairments	$ 878.4	$ 878.4