Leases - Schedule of Components of Lease Expense (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Finance lease cost:
Amortization of right-of-use assets	$ 0.4	$ 0.4
Interest on lease liabilities	0.1	0.2
Net finance lease cost	0.5	0.6
Operating lease cost	17.5	22.1
Variable lease cost	0.6	0.6
Sublease income	(0.7)	(0.7)
Total non-current lease cost	17.9	22.6
Short-term lease costs	30.0	39.2
Total lease cost	$ 47.9	$ 61.8