Consolidated Statements Of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Cash flows from operating activities:
Net income	$ 5,873	$ 5,749
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation, accretion, and amortization of intangible assets	38,371	40,624
Amortization of deferred financing costs and note discount	1,043	3,486
Share-based compensation expense	4,258	5,193
Deferred income tax (benefit) expense	(780)	9,602
Loss on disposal and impairment of assets	353	921
Other reserves and non-cash items	3,311	4,361
Changes in assets and liabilities:
Decrease in accounts and notes receivable, net	2,129	3,171
Decrease (increase) in prepaid expenses, deferred costs, and other current assets	2,992	(11,645)
Decrease (increase) in inventory, net	177	(1,454)
Decrease in other assets	2,946	3,866
Increase (decrease) in accounts payable	6,122	(8,813)
Increase (decrease) in restricted cash liabilities	4,346	(39,871)
Increase (decrease) in accrued liabilities	5,371	(11,209)
Decrease in other liabilities	(7,160)	(2,861)
Net cash provided by operating activities	69,352	1,120
Cash flows from investing activities:
Additions to property and equipment	(16,246)	(18,429)
Net cash used in investing activities	(16,246)	(18,429)
Cash flows from financing activities:
Proceeds from borrowings under revolving credit facility	0	731,862
Repayments of borrowings under revolving credit facility	0	(144,754)
Repayments of term loan facility	(1,250)	0
Tax payments related to share-based compensation	(14,464)	(5,515)
Proceeds from exercises of stock options	760	293
Repurchase of common shares	0	(16,873)
Payment of contingent consideration	(9,193)	0
Other financing activities	(36)	0
Net cash (used in) provided by financing activities	(24,183)	565,013
Effect of exchange rate changes on cash, cash equivalents, and restricted cash	(1,296)	(6,649)
Net increase in cash, cash equivalents, and restricted cash	27,627	541,055
Cash, cash equivalents, and restricted cash as of beginning of period	311,595	117,469
Cash, cash equivalents, and restricted cash as of end of period	339,222	658,524
Supplemental disclosure of cash flow information:
Cash paid for interest	6,628	1,992
Cash paid for income taxes, net	$ 5,881	$ 2,666