Consolidated Statements of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020
Cash flows from operating activities:
Net loss	$ (17,317)	$ (16,877)
Adjustments to reconcile net loss to net cash provided by operating activities:
Depreciation and amortization	10,969	10,331
Amortization of contract acquisition costs	434	798
Amortization of ROU assets	7,046	7,255
Stock-based compensation	4,649	3,586
Restructuring and other related costs	935	633
Other	364	54
Net changes in operating assets and liabilities:
Accounts receivable, net	3,193	8,544
Prepaid expenses and other assets	(553)	1,226
Contract acquisition costs	(167)	(195)
Accounts payable	1,810	(3,597)
Accrued compensation and benefits	185	317
Operating lease liabilities	(8,154)	(7,299)
Accrued expenses	(6)	(831)
Other liabilities	573	(1,081)
Net cash provided by operating activities	3,961	2,864
Cash flows from investing activities:
Purchases of property and equipment	(2,682)	(5,124)
Net cash used in investing activities	(2,682)	(5,124)
Cash flows from financing activities:
Repayment on finance lease obligations	(485)	(730)
Debt issuance costs	(97)
Proceeds from Revolver	13,500	27,000
Repayment of Revolver	(18,500)	(12,000)
Proceeds from issuance of common stock	139	159
Payments related to minimum tax withholdings on RSU releases	(178)
Net cash (used in) provided by financing activities	(5,621)	14,429
Effect of exchange rate changes on cash and cash equivalents and restricted cash	480	(52)
Net change in cash and cash equivalents and restricted cash	(3,862)	12,117
Cash and cash equivalents and restricted cash, beginning of period	36,326	29,383
Cash and cash equivalents and restricted cash, end of period	32,464	41,500
Supplemental disclosures of cash flow information:
Cash paid for interest	288	408
Supplemental disclosures of non-cash activities:
Purchases of property and equipment accrued in accounts payable and accrued expenses	25	203
ROU assets obtained in exchange for new lease liabilities	$ 618	$ 2,271