Condensed Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Current assets
Cash and cash equivalents	$ 121,589	$ 185,094
Marketable securities	43,212
Restricted cash	751	749
Trade receivables, (including related parties of $3,750 and $8,162) net of allowance for doubtful accounts of $6,696 and $6,398	194,291	201,747
Assets held for sale		1,963
Prepaid expenses and other current assets (including related parties of $274 and $274)	42,517	18,925
Total current assets	402,360	408,478
Property and equipment, net of accumulated depreciation of $190,516 and $183,930	61,649	62,498
Intangible assets subject to amortization, net of accumulated amortization of $112,569 and $104,687 (including related parties of $3,945 and $4,642)	64,704	64,034
Intangible assets not subject to amortization	209,053	209,053
Goodwill	86,715	71,708
Deferred income taxes	1,462	1,462
Operating leases right of use asset	42,027	25,582
Other assets	8,487	8,527
Total assets	876,457	851,342
Current liabilities
Current maturities of long-term debt	5,060	4,903
Accounts payable and accrued expenses (including related parties of $1,500 and $1,920)	240,994	212,655
Operating lease liabilities	5,406	7,304
Total current liabilities	251,460	224,862
Long-term debt, less current maturities, net of unamortized debt issuance costs of $1,377 and $1,851	207,817	207,416
Long-term operating lease liabilities	39,363	20,988
Other long-term liabilities	29,283	72,930
Deferred income taxes	70,064	68,220
Total liabilities	597,987	594,416
Commitments and contingencies (note 6)
Stockholders' equity
Additional paid-in capital	770,639	780,388
Accumulated deficit	(502,747)	(522,494)
Accumulated other comprehensive income (loss)	(2,025)	(977)
Total stockholders' equity	265,876	256,926
Noncontrolling interest	12,594
Total equity	278,470	256,926
Total liabilities and equity	876,457	851,342
Class A common stock
Stockholders' equity
Common stock	6	6
Class B common stock
Stockholders' equity
Common stock	2	2
Class U common stock
Stockholders' equity
Common stock	$ 1	$ 1