Leases - Operating Lease Maturity (Details) $ in Millions	Sep. 30, 2024 USD ($)
Finance Leases
2025	$ 6.5
2026	2.2
2027	2.2
2028	1.5
2029	0.0
Thereafter	0.0
Total undiscounted lease payments	12.4
Less: Imputed interest	(0.4)
Total lease liabilities	12.0
Operating Leases
2025	104.5
2026	95.0
2027	78.4
2028	58.2
2029	41.3
Thereafter	128.8
Total undiscounted lease payments	506.2
Less: Imputed interest	(60.9)
Total lease liabilities	$ 445.3