Supplemental Cash Flow Information (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Supplemental disclosures of cash flow information:
Cash paid for interest	$ 221.1	$ 208.8	$ 207.3
Cash paid (refunded) for income taxes	0.7	0.3	(0.7)
Cash paid for operating leases included in cash flows from operating activities	30.5	24.6	24.6
Non-cash investing activities:
Non-cash accrual of property and equipment	4.2	12.0	(39.6)
Non-cash right-of-use assets obtained in exchange for operating lease liabilities	33.4	18.7	9.8
Non-cash acquisitions	1.3	16.9	0.0
Non-cash financing activities:
Receivable from sale of VEX	0.0	0.0	10.0
Redemption of mandatorily redeemable non-controlling interest	$ (6.5)	$ 0.0	$ (4.0)