Condensed Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Current assets
Cash and cash equivalents	$ 128,410	$ 105,739
Marketable securities	4,335	13,172
Restricted cash	774	770
Trade receivables, (including related parties of $1,913 and $10,051) net of allowance for doubtful accounts of $6,916 and $5,719	206,065	235,837
Assets held for sale	301	301
Prepaid expenses and other current assets (including related parties of $274 and $274)	40,095	30,036
Total current assets	379,980	385,855
Property and equipment, net of accumulated depreciation of $180,468 and $197,645	69,294	71,475
Intangible assets subject to amortization, net of accumulated amortization of $82,592 and $87,968 (including related parties of $2,553 and $2,785)	34,660	51,784
Intangible assets not subject to amortization	195,174	195,174
Goodwill	55,272	90,672
Deferred income taxes	5,175	4,991
Operating leases right of use asset	43,543	43,941
Other assets	21,892	22,054
Total assets	804,990	865,946
Current liabilities
Current maturities of long-term debt	3,360	9,969
Accounts payable and accrued expenses (including related parties of $1,064 and $1,071)	263,484	254,802
Operating lease liabilities	7,518	7,282
Total current liabilities	274,362	272,053
Long-term debt, less current maturities, net of unamortized debt issuance costs of $1,012 and $1,116	195,762	199,552
Long-term operating lease liabilities	44,901	45,665
Other long-term liabilities	21,404	23,009
Deferred income taxes	55,186	59,381
Total liabilities	591,615	599,660
Commitments and contingencies (note 6)
Redeemable noncontrolling interest	39,840	43,758
Stockholders' equity
Additional paid-in capital	743,339	743,246
Accumulated deficit	(568,702)	(519,812)
Accumulated other comprehensive income (loss)	(1,111)	(915)
Total stockholders' equity	173,535	222,528
Total liabilities, redeemable noncontrolling interest and equity	804,990	865,946
Class A common stock
Stockholders' equity
Common stock	8	8
Class U common stock
Stockholders' equity
Common stock	$ 1	$ 1