Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Current assets:
Cash and cash equivalents	$ 30,170	$ 34,006
Accounts receivable, net	35,464	38,890
Prepaid expenses and other	8,599	9,275
Total current assets	74,233	82,171
Property and equipment, net	21,540	29,948
ROU assets	22,706	29,798
Contract acquisition costs	604	872
Goodwill	6,334	6,334
Other assets	4,109	3,490
Total assets	129,526	152,613
Current liabilities:
Accounts payable	3,003	1,204
Accrued expenses	3,203	3,217
Accrued compensation and benefits	19,147	18,342
Revolver	10,000	15,000
Operating lease liabilities	9,503	10,797
Other current liabilities	973	1,209
Total current liabilities	45,829	49,769
Operating lease liabilities, net of current portion	18,931	25,975
Other long-term liabilities	1,893	1,593
Total liabilities	66,653	77,337
Commitments and contingencies (Note 9)
Stockholders' equity:
Preferred stock, $0.0001 par value; 20,000 shares authorized and none issued and outstanding
Common stock, $0.0001 par value; 1,000,000 shares authorized; 99,162 shares issued and 99,041 shares outstanding as of September 30, 2021; 97,248 shares issued and 97,127 shares outstanding as of December 31, 2020	10	10
Treasury stock	(441)	(441)
Additional paid-in capital	384,337	379,696
Accumulated deficit	(321,924)	(304,607)
Accumulated other comprehensive income	891	618
Total stockholders' equity	62,873	75,276
Total liabilities and stockholders' equity	$ 129,526	$ 152,613