Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income (loss)	$ (51,896)	$ 55,338	$ 188,886
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	134,738	150,861	144,572
Asset impairments	11,378	60,628	4,706
Amortization of debt issuance costs and other non-cash interest	7,345	5,519	3,351
Expenses associated with debt repayments and refinancing transactions	56,279	7,141	602
Deferred income taxes	99,270	4,945	(1,162)
Loss (gain) on sale of real estate	(38,766)	13,023	(287)
Other expenses and non-cash items	5,830	13,616	13,320
Non-cash revenue and other income	(718)	(7,301)	(11,292)
Non-cash equity compensation	18,733	17,264	17,267
Changes in assets and liabilities, net:
Accounts receivable, prepaid expenses and other assets	(10,628)	16,769	(16,938)
Accounts payable, accrued expenses and other liabilities	31,666	17,727	11,359
Net cash provided by operating activities	263,231	355,530	354,384
CASH FLOWS FROM INVESTING ACTIVITIES:
Expenditures for facility development and expansions	(18,612)	(27,591)	(136,128)
Expenditures for other capital improvements	(62,272)	(56,196)	(57,192)
Acquisitions, net of cash acquired		(8,849)	(48,396)
Net proceeds from sale of assets	320,754	113,602	4,295
Increase in other assets	(1,447)	(7,998)	(7,168)
Net cash provided by (used in) investing activities	238,423	12,968	(244,589)
CASH FLOWS FROM FINANCING ACTIVITIES:
Proceeds from issuance of debt and borrowings from credit facility	740,563	374,000	1,146,691
Scheduled principal repayments	(35,305)	(32,254)	(14,121)
Principal repayments of credit facility	(284,000)	(520,000)	(648,000)
Repayment of non-recourse mortgage notes	(161,930)	(51,311)
Repayment of senior notes and Term Loan B	(516,350)		(325,000)
Payment of debt defeasance, issuance and other refinancing and related costs	(64,987)	(11,162)	(4,296)
Payment of lease obligations for financing leases	(559)	(543)	(538)
Contingent consideration for acquisition of businesses	(1,000)		(7,398)
Proceeds from exercise of stock options			876
Purchase and retirement of common stock	(1,639)	(3,575)	(3,531)
Dividends paid	(2,508)	(105,978)	(209,522)
Net cash used in financing activities	(327,715)	(350,823)	(64,839)
NET INCREASE IN CASH, CASH EQUIVALENTS AND RESTRICTED CASH	173,939	17,675	44,956
CASH, CASH EQUIVALENTS AND RESTRICTED CASH, beginning of period	136,768	119,093	74,137
CASH, CASH EQUIVALENTS AND RESTRICTED CASH, end of period	310,707	136,768	119,093
NON-CASH INVESTING AND FINANCING ACTIVITIES:
Debt assumed on acquisition of property		52,217
Establishment of right of use assets and lease liabilities	1,483	116,263	137,946
Distributions to non-controlling interest	5,897
Cash paid during the period for:
Interest (net of amounts capitalized of $0.4 million, $0.5 million, and $6.0 million in 2021, 2020, and 2019, respectively)	80,587	88,132	85,698
Income taxes paid	$ 36,477	$ 1,322	$ 16,437