Leases - Components of Lease Expense (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Finance lease cost:
Amortization of finance lease assets	$ 1.0	$ 1.4	$ 1.5
Interest on lease liabilities	0.7	0.8	0.9
Total finance lease cost	1.7	2.2	2.4
Operating lease cost	92.4	87.7	81.4
Short-term lease cost	25.7	24.6	27.0
Variable lease cost	22.5	21.7	17.2
Total lease cost	$ 142.3	$ 136.2	$ 128.0