Leases - Cash flow information, weighted average remaining term and discount rate (Details) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Dec. 31, 2023
Cash paid for amounts included in the measurement of lease liabilities
Operating cash flows from operating leases	$ 133.5	$ 129.3
Right-of-use assets modified or obtained in exchange for operating lease liabilities, net	$ 112.2	$ (4.4)
Weighted-average remaining lease term - operating leases	24 years		24 years
Weighted-average discount rate - operating leases	6.70%		6.70%