Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Current assets:
Cash and cash equivalents	$ 31,289	$ 83,229
Accounts receivable, net of allowance of $7,296 and $7,051, respectively	57,918	58,634
Prepaid expenses and other current assets	10,601	12,428
Total current assets	99,808	154,291
Property and equipment, net	106,117	111,871
Intangible assets, net	280,211	281,160
Goodwill	157,947	157,947
Investments	20,871	11,501
Operating lease right-of-use assets	44,646	48,290
Other assets	1,502	2,948
Restricted cash	494	494
Total assets	711,596	768,502
Current liabilities:
Accounts payable	10,517	9,056
Deferred revenue	8,824	8,847
Accrued compensation and benefits	11,304	12,462
Accrued expenses and other current liabilities	20,392	21,524
Operating lease liabilities, current	7,405	7,517
Accrued interest	6,301	6,350
Total current liabilities	64,743	65,756
Long-term debt, net of deferred finance costs of $9,081 and $2,369, respectively	540,919	543,428
Deferred tax liability	16,396	10,326
Operating lease liability, net of current portion	40,369	44,661
Other long-term liabilities	3,357	3,576
Total liabilities	665,784	667,747
Stockholders’ equity:
Total common stock	167	191
Additional paid-in capital	300,879	369,672
Accumulated deficit	(258,083)	(272,602)
Non-controlling interest	2,849	3,494
Total stockholders’ equity	45,812	100,755
Total liabilities and stockholders’ equity	711,596	768,502
Class A common stock
Stockholders’ equity:
Total common stock	124	144
Class B common stock
Stockholders’ equity:
Total common stock	8	30
Class C common stock
Stockholders’ equity:
Total common stock	$ 35	$ 17