Investments in and Advances to Unconsolidated Affiliates - Affiliate Balance Sheet (Details) - USD ($) $ in Millions	Jun. 30, 2023	Dec. 31, 2022
Assets
Current assets	$ 583.2	$ 344.5
Other assets, net	32.9	27.0
Total assets	6,578.6	6,206.8
LIABILITIES AND SHAREHOLDERS' EQUITY
Current liabilities	648.0	621.6
Other liabilities	142.7	122.4
Members' deficit	846.7	552.4
Total liabilities and shareholders' equity	6,578.6	6,206.8
Equity Method Investment, Nonconsolidated Investee or Group of Investees
Assets
Current assets	86.4	91.0
Property and equipment, net	342.5	345.7
Other assets, net	264.4	265.0
Total assets	693.3	701.7
LIABILITIES AND SHAREHOLDERS' EQUITY
Current liabilities	107.3	97.9
Long-term debt	846.4	838.6
Other liabilities	0.4	0.2
Members' deficit	(260.8)	(235.0)
Total liabilities and shareholders' equity	$ 693.3	$ 701.7