Leases - Schedule of Components of Lease Cost for Operating Leases (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Operating leases:
Lease cost	$ 14.1	$ 14.5	$ 42.7	$ 40.8
Variable lease cost	1.2	1.0	3.4	3.2
Short-term lease cost	0.1	0.4	0.3	0.9
Operating lease cost	15.4	15.9	46.4	44.9
Sublease income	(0.2)	(0.4)	(1.0)	(1.2)
Total lease cost net	$ 15.2	$ 15.5	$ 45.4	$ 43.7