CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)	9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019
Cash Flows from Operating Activities:
Net income (loss)	$ 106,320,000	$ (283,996,000)
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Goodwill impairment	0	379,863,000
Depreciation	55,755,000	41,884,000
Amortization of intangible assets	23,879,000	2,657,000
Share-based compensation expense	10,722,000	14,331,000
Change in debt discount and deferred debt issuance costs	18,960,000	9,790,000
Deferred income taxes	22,137,000	(48,318,000)
Gain on sale of property and equipment	(2,609,000)	(1,799,000)
Changes in other components of working capital	(107,786,000)	(7,148,000)
Other long-term liabilities	3,899,000	3,979,000
Other, net	(309,000)	122,000
NET CASH PROVIDED BY OPERATING ACTIVITIES	130,968,000	111,365,000
Cash Flows from Investing Activities:
Acquisition of property and equipment	(43,396,000)	(62,677,000)
Proceeds from sale of property and equipment	13,320,000	4,300,000
Investment in securities	(22,692,000)	(18,790,000)
Proceeds from maturities and sales of investments in securities	19,901,000	11,078,000
NET CASH USED IN INVESTING ACTIVITIES	(32,867,000)	(66,089,000)
Cash Flows from Financing Activities:
Proceeds from debt	1,183,012,000	649,139,000
Repayment of debt	(1,004,259,000)	(583,039,000)
Cash payments related to share-based compensation	(1,697,000)	(2,363,000)
Distributions paid to noncontrolling interests	(37,217,000)	(21,500,000)
Contributions from noncontrolling interests	0	6,519,000
Debt issuance, extinguishment and modification costs	(10,701,000)	(504,000)
NET CASH PROVIDED BY FINANCING ACTIVITIES	129,138,000	48,252,000
Net increase in cash, cash equivalents and restricted cash	227,239,000	93,528,000
Cash, cash equivalents and restricted cash at beginning of period	202,101,000	119,863,000
Cash, cash equivalents and restricted cash at end of period	$ 429,340,000	$ 213,391,000