Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Current assets
Cash and cash equivalents	$ 51,201	$ 43,407
Accounts receivable, net of allowance for doubtful accounts of $8,513 and $7,486, respectively	83,985	96,994
Prepaid expenses	7,175	7,296
Other current assets	709	556
Total current assets	143,070	148,253
Property and equipment
Accumulated depreciation	(77,697)	(64,682)
Property and equipment, net	25,150	38,303
Intangible assets, net	109,733	130,568
Goodwill	399,085	395,171
Other assets	2,708	2,617
Total assets	679,746	714,912
Current liabilities
Current portion of long-term debt, net	10,948	11,689
Accounts payable and accrued expense	33,504	31,270
Current portion of contingent consideration	695	340
Deferred revenue	3,955	4,851
Total current liabilities	49,102	48,150
Long-term debt, net	472,600	468,932
Deferred tax liabilities	7,335	6,294
Other liabilities	8,488	7,771
Total liabilities	537,525	531,147
Commitments and contingencies
Stockholders' equity
Common stock $0.0001 par value, shares authorized - 200,000,000 shares authorized as of December 31, 2020 and December 31, 2019; 42,529,017 shares issued and outstanding as of December 31, 2020 and December 31, 2019	4	4
Preferred stock $0.0001 par value, 1,000,000 shares authorized, zero issued and outstanding as of December 31, 2020 and December 31, 2019
December 31, 2019	385,387	381,952
Accumulated deficit	(255,424)	(205,498)
Accumulated other comprehensive income	12,254	7,307
Total stockholders' equity	142,221	183,765
Total liabilities and stockholders' equity	679,746	714,912
Computer software and hardware
Property and equipment
Property and equipment, gross	72,211	72,228
Leasehold improvements
Property and equipment
Property and equipment, gross	27,271	26,963
Furniture, fixtures and other equipment
Property and equipment
Property and equipment, gross	$ 3,365	$ 3,794