Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Current assets
Cash and cash equivalents	$ 37,537	$ 46,468
Accounts receivable, net of allowance for doubtful accounts of $7,027 and $9,774, respectively	91,223	93,273
Prepaid expenses	13,244	9,669
Other current assets	1,155	1,133
Total current assets	143,159	150,543
Property and equipment
Accumulated depreciation	(82,950)	(81,261)
Property and equipment, net	19,643	22,276
Intangible assets, net	52,853	59,291
Goodwill	390,361	395,759
Other assets	8,316	8,535
Total assets	614,332	636,404
Current liabilities
Current portion of long-term debt, net	3,000	3,000
Accounts payable and accrued expense	28,762	27,067
Current portion of contingent consideration	664	646
Deferred revenue	2,844	4,800
Total current liabilities	35,270	35,513
Long-term debt, net	512,974	507,706
Deferred tax liabilities	7,109	6,772
Other liabilities	7,295	8,559
Total liabilities	562,648	558,550
Commitments and contingencies
Stockholders' equity
Common stock $0.0001 par value, 200,000,000 shares authorized, 42,791,540 and 42,684,549 issued and outstanding as of June 30, 2022 and December 31, 2021, respectively	4	4
Preferred Stock $0.0001 par value, 1,000,000 shares authorized, zero issued and outstanding as of June 30, 2022 and December 31, 2021, respectively
Additional paid-in capital	388,473	386,028
Accumulated deficit	(336,759)	(315,967)
Accumulated other comprehensive (loss) income	(34)	7,789
Total stockholders' equity	51,684	77,854
Total liabilities and stockholders' equity	614,332	636,404
Computer software and hardware
Property and equipment
Property and equipment, gross	73,598	73,677
Leasehold improvements
Property and equipment
Property and equipment, gross	26,249	26,796
Furniture, fixtures and other equipment
Property and equipment
Property and equipment, gross	$ 2,746	$ 3,064