Consolidated Statements Of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019
Cash flows from operating activities:
Net income	$ 9,555	$ 35,651
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation, accretion, and amortization of intangible assets	122,508	137,051
Amortization of deferred financing costs and note discount	10,226	9,999
Share-based compensation expense	16,143	15,367
Deferred income tax expense	10,333	1,089
Loss on disposal and impairment of assets	1,847	3,101
Other reserves and non-cash items	(2,412)	(8,565)
Changes in assets and liabilities:
Decrease (increase) in accounts and notes receivable, net	16,181	(21,589)
Decrease in prepaid expenses, deferred costs, and other current assets	7,725	7,810
Increase in inventory, net	(86)	(4,035)
Decrease in other assets	8,007	5,047
(Decrease) increase in accounts payable	(5,258)	5,526
Increase in restricted cash liabilities	10,673	22,629
(Decrease) increase in accrued liabilities	(19,422)	31,827
Increase (decrease) in other liabilities	2,181	(9,216)
Net cash provided by operating activities	188,201	231,692
Cash flows from investing activities:
Additions to property and equipment	(61,094)	(90,319)
Acquisitions, net of cash acquired	0	(9,100)
Net cash used in investing activities	(61,094)	(99,419)
Cash flows from financing activities:
Proceeds from borrowings under revolving credit facility	747,003	486,486
Repayments of borrowings under revolving credit facility	(907,140)	(555,588)
Proceeds from issuance of term loan facility	500,000	0
Repayments of term loan facility	(1,250)	0
Debt issuance, modification, and redemption costs	(20,519)	(924)
Repurchase of convertible notes	(171,173)	0
Tax payments related to share-based compensation	(5,792)	(2,224)
Proceeds from exercises of stock options	293	2
Repurchase of common shares	(16,873)	(50,252)
Payment of contingent consideration	(5,179)	0
Net cash provided by (used in) financing activities	119,370	(122,500)
Effect of exchange rate changes on cash, cash equivalents, and restricted cash	(3,716)	99
Net increase in cash, cash equivalents, and restricted cash	242,761	9,872
Cash, cash equivalents, and restricted cash as of beginning of period	117,469	195,410
Cash, cash equivalents, and restricted cash as of end of period	360,230	205,282
Supplemental disclosure of cash flow information:
Cash paid for interest	22,995	14,453
Cash (refunded) paid for income taxes	$ (2,878)
Cash (refunded) paid for income taxes		$ 5,251