CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021
Cash flows from operating activities:
Net loss	$ (3,912)	$ (14,488)
Adjustments to reconcile net loss to net cash provided by (used in) operating activities:
Depreciation and amortization	4,173	4,806
Stock-based compensation expense	14,561	9,474
Amortization of acquired intangible assets	2,605	2,467
Amortization of costs capitalized to obtain revenue contracts	1,127	499
Deferred taxes	46	87
Other	(41)	125
Changes in operating assets and liabilities:
Accounts receivable	(14,999)	440
Prepaid expenses and other current assets	(2,750)	1,848
Operating lease right-of-use assets	1,510	1,043
Other non-current assets	1,479	(1,211)
Accounts payable	(2,852)	(1,969)
Accrued compensation and related benefits	3,624	(142)
Accrued and other liabilities	2,560	(167)
Deferred revenues	2,322	3,542
Billings in excess of recognized revenues	183	(1,334)
Operating lease liabilities	(1,613)	(1,193)
Net cash provided by (used in) operating activities	8,023	3,827
Cash flows from investing activities:
Proceeds from maturities and sales of short-term investments	136,000	136,000
Purchases of short-term investments	(45,791)	(90,985)
Purchases of property and equipment	(6,651)	(2,713)
Prepayment for the purchase of property and equipment	(54)
Purchases of intangible assets	150
Net cash provided by investing activities	83,354	42,302
Cash flows from financing activities:
Proceeds from exercise of stock options	1,064	1,251
Proceeds from employee stock purchase plan	3,011	1,035
Payments for taxes related to net share settlement of equity awards	(5,790)	(3,257)
Repurchases of common stock	(22,471)	(4,523)
Net cash used in financing activities	(24,186)	(5,494)
Effect of exchange rate changes on cash and cash equivalents	(1,147)	(193)
Net change in cash, cash equivalents, and restricted cash	66,044	40,442
Cash, cash equivalents, and restricted cash at beginning of period	27,684	33,815
Cash, cash equivalents, and restricted cash at end of period	93,728	74,257
Reconciliation of cash, cash equivalents, and restricted cash to the balance sheets:
Cash and cash equivalents	93,728	71,238
Restricted cash		3,019
Total cash, cash equivalents and restricted cash	93,728	74,257
Supplemental disclosure of cash flow information:
Cash paid during the period for taxes	2,001	1,543
Cash paid for amounts included in the measurement of operating lease liabilities	1,219	1,538
Supplemental disclosure of noncash information:
Property and equipment received and accrued in accounts payable and accrued and other liabilities	2,200	247
Advances for purchase of fixed assets transferred from prepaid assets to property and equipment	336	963
Operating lease liabilities arising from obtaining right-of-use assets	$ 2,268
Release of restricted cash reducing goodwill due to the acquisition purchase price adjustment		$ 469