Goodwill (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Change in the carrying amount of goodwill
Balance at the beginning of the year	$ 2,111.1	$ 2,105.9
Acquisitions	58.1	2.5
Effect of foreign currency translation	(7.4)	2.7
Balance at the end of the year	2,161.8	2,111.1
Accumulated impairment losses	$ 0.0	$ 0.0