Leases - Operating Lease Maturity (Details) $ in Millions	Sep. 30, 2025 USD ($)
Finance Leases
2026	$ 2.0
2027	2.0
2028	2.0
2029	0.0
2030	0.0
Thereafter	0.0
Total undiscounted lease payments	6.0
Less: Imputed interest	$ 0.0
Finance Lease, Liability, Statement of Financial Position [Extensible Enumeration]	Other liabilities
Total lease liabilities	$ 6.0
Operating Leases
2026	110.0
2027	94.0
2028	74.0
2029	53.0
2030	40.0
Thereafter	102.0
Total undiscounted lease payments	473.0
Less: Imputed interest	(50.0)
Total lease liabilities	$ 423.0