Income Taxes - Current and Deferred Income Taxes (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Current:
Federal U.S.	$ 127.1	$ 122.2	$ 122.9
Non-U.S.	14.4	15.5	19.8
State and local	28.1	29.0	18.4
Deferred:
Federal U.S.	(26.3)	(32.8)	(33.3)
Non-U.S.	(15.5)	(10.2)	(8.4)
State and local	(1.7)	(2.7)	(1.1)
Income tax provision	$ 126.1	$ 121.0	$ 118.3