Condensed Consolidated Statements of Cash Flows - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Cash flows from operating activities:
Net income	$ 155.7	$ 42.1
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	37.9	25.1
Distributions from unconsolidated affiliates	45.8	40.6
Equity in income of unconsolidated affiliates	(38.3)	(32.5)
Stock-based compensation	8.6	7.0
Deferred income taxes	33.2	10.2
Asset impairments	0.0	4.9
Amortization of operating lease assets	2.2	1.3
Gain on sale of Arlington	(114.0)	0.0
Other	0.8	1.2
Changes in operating assets and liabilities:
Income taxes	19.9	6.4
Deferred revenue	81.8	56.3
Other assets and liabilities	(17.7)	(27.4)
Net cash provided by operating activities	215.9	135.2
Cash flows from investing activities:
Capital maintenance expenditures	(11.8)	(10.0)
Capital project expenditures	(122.9)	(45.5)
Proceeds from sale of Arlington	195.7	0.0
Other	(6.5)	(7.3)
Net cash provided by (used in) investing activities	54.5	(62.8)
Cash flows from financing activities:
Proceeds from borrowings under long-term debt obligations	615.5	0.0
Repayments of borrowings under long-term debt obligations	(797.5)	(1.8)
Payment of dividends	(26.7)	(25.7)
Repurchase of common stock	(0.5)	(24.3)
Taxes paid related to net share settlement of stock awards	(11.3)	(13.1)
Debt issuance costs	(2.5)	0.0
Change in bank overdraft	(14.2)	(3.0)
Other	(0.5)	(0.1)
Net cash used in financing activities	(237.7)	(68.0)
Net increase in cash, cash equivalents and restricted cash	32.7	4.4
Cash, cash equivalents and restricted cash, beginning of period	204.7	355.6
Cash, cash equivalents and restricted cash, end of period	237.4	360.0
Supplemental disclosures of cash flow information:
Cash paid for interest	55.5	20.7
Cash paid for income taxes	0.8	0.1
Cash received from income tax refunds	0.7	0.0
Schedule of non-cash operating, investing and financing activities:
Property and equipment additions included in accounts payable and accrued expenses	54.2	29.9
Debt issuance costs included in accrued expense and other current liabilities	0.7	3.2
Right-of-use assets obtained in exchange for lease obligations in operating leases	0.5	0.9
Right-of-use assets obtained in exchange for lease obligations in finance leases	23.6	0.0
Repurchase of common stock included in accrued expense and other current liabilities	$ 0.0	$ 0.7