Consolidated Statements of Cash Flows - USD ($)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Operating activities:
Net income (loss)	$ 102,080,000	$ (520,564,000)	$ 9,710,000
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depreciation	64,885,000	60,577,000	55,807,000
Amortization of intangible assets	340,210,000	334,697,000	334,053,000
Amortization of the right-of-use asset	6,963,000	8,405,000	9,594,000
Stock-based compensation	18,010,000	406,054,000	(14,880,000)
Deferred income taxes	(81,929,000)	(45,041,000)	(111,404,000)
Non-cash interest costs	12,259,000	22,888,000	13,368,000
Loss on extinguishment of debt	15,843,000	102,993,000	(18,450,000)
Loss on equity investments	0	12,165,000	0
Loss on disposal of property and equipment	2,991,000	610,000	163,000
Change in fair value of Private Placement Warrants and unvested founder shares	(32,596,000)	(35,422,000)	0
Changes in assets and liabilities, net of assets acquired and liabilities assumed from acquisitions:
Accounts receivable, net	(33,826,000)	14,758,000	5,279,000
Prepaid expenses and other assets	(6,952,000)	(7,480,000)	(8,822,000)
Prepaid taxes	(5,064,000)	2,130,000	(1,426,000)
Operating lease obligation	(5,900,000)	(8,461,000)	(9,462,000)
Accounts payable and accrued expenses and other	7,713,000	29,065,000	20,783,000
Net cash provided by operating activities	404,687,000	377,374,000	284,313,000
Investing activities:
Purchases of property and equipment	(84,590,000)	(70,813,000)	(66,414,000)
Proceeds from sale of investment	5,641,000	0	0
HST Acquisition, net of cash acquired	246,000	(140,032,000)	0
DHP Acquisition, net of cash acquired	(149,676,000)	0	0
Net cash used in investing activities	(228,379,000)	(210,845,000)	(66,414,000)
Financing activities:
Taxes paid on settlement of vested share awards	(3,789,000)	0	0
Borrowings on revolving credit facility	0	98,000,000	0
Repayment of revolving credit facility	0	(98,000,000)	0
Effect of the Transactions	0	682,408,000	0
Purchase of treasury stock	(100,000,000)	(101,123,000)	0
Payment of debt issuance costs	0	(23,489,000)	0
Borrowings on finance leases, net	(32,000)	(10,000)	(75,000)
Net cash used in financing activities	(114,684,000)	(61,599,000)	(201,088,000)
Net increase in cash, cash equivalents and restricted cash	61,624,000	104,930,000	16,811,000
Cash, cash equivalents and restricted cash at beginning of period	126,755,000	21,825,000	5,014,000
Cash, cash equivalents and restricted cash at end of period	188,379,000	126,755,000	21,825,000
Cash and cash equivalents	185,328,000	126,755,000	21,825,000
Restricted cash	3,051,000	0	0
Cash, cash equivalents and restricted cash at end of period	188,379,000	126,755,000	21,825,000
Noncash investing and financing activities:
Purchases of property and equipment not yet paid	5,930,000	4,334,000	3,768,000
Operating lease right-of-use assets obtained in exchange for operating lease liabilities	6,880,000	10,210,000	4,000,000
Supplemental disclosure of cash flow information:
Interest	(231,049,000)	(312,349,000)	(363,907,000)
Income taxes, net of refunds	(131,517,000)	(3,917,000)	(114,569,000)
Term Loan G
Financing activities:
Repayments of Term Loans	(2,341,000,000)	(369,000,000)	(100,000,000)
7.125% Notes Due 2024
Financing activities:
Extinguishment of debt	0	(1,615,583,000)	0
Senior PIK notes
Financing activities:
Extinguishment of debt	0	(1,202,302,000)	(101,013,000)
Senior Convertible PIK Notes
Financing activities:
Issuance of notes	0	1,267,500,000	0
5.750% Notes
Financing activities:
Issuance of notes	0	1,300,000,000	0
Term Loan B
Financing activities:
Repayments of Term Loans	(3,313,000)	0	0
Issuance of notes	1,298,930,000	0	0
5.50% Senior Secured Notes
Financing activities:
Issuance of notes	$ 1,034,520,000	$ 0	$ 0