Leases - Cash flow information, weighted average remaining term and discount rate (Details) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2026	Sep. 30, 2025	Dec. 31, 2025
Cash paid for amounts included in the measurement of lease liabilities
Operating cash flows from operating leases	$ 221.0	$ 217.1
Right-of-use assets modified or obtained in exchange for operating lease liabilities, net	$ 38.7	$ (1.6)
Weighted-average remaining lease term - operating leases	23 years		23 years
Weighted-average discount rate - operating leases	6.70%		6.70%