CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020
Cash Flows from Operating Activities:
Net income	$ 66,716	$ 56,997
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Depreciation	44,821	34,180
Amortization of intangible assets	17,314	14,596
Share-based compensation expense	5,033	8,264
Change in debt discounts and deferred debt issuance costs	3,868	7,046
Deferred income taxes	2,213	5,423
Loss on sale of property and equipment	360	31
Changes in other components of working capital	(278,943)	(68,471)
Other long-term liabilities	6,801	1,295
Other, net	515	(1,131)
NET CASH PROVIDED BY (USED IN) OPERATING ACTIVITIES	(131,302)	58,230
Cash Flows from Investing Activities:
Acquisition of property and equipment	(18,860)	(31,386)
Proceeds from sale of property and equipment	3,623	1,082
Investments in securities	(18,096)	(13,319)
Proceeds from maturities and sales of investments in securities	10,497	10,985
NET CASH USED IN INVESTING ACTIVITIES	(22,836)	(32,638)
Cash Flows from Financing Activities:
Proceeds from debt	308,181	752,843
Repayment of debt	(367,007)	(757,141)
Cash payments related to share-based compensation	(1,625)	(994)
Distributions paid to noncontrolling interests	(7,250)	(30,910)
Contributions from noncontrolling interests	4,000	0
NET CASH USED IN FINANCING ACTIVITIES	(63,701)	(36,202)
Net decrease in cash, cash equivalents and restricted cash	(217,839)	(10,610)
Cash, cash equivalents and restricted cash at beginning of period	451,852	202,101
Cash, cash equivalents and restricted cash at end of period	$ 234,013	$ 191,491