Condensed Consolidated Statements of Cash Flows (unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Cash flows from operating activities:
Net loss	$ (22,220)	$ (6,439)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization	901	541
Stock-based compensation expense	13,503	2,577
Other	118	231
Non-cash operating lease costs	809
Changes in operating assets and liabilities:
Accounts receivable	(2,905)	2,126
Prepaid expenses and other current assets	(2,460)	(2,251)
Deferred commissions	(2,391)	(1,269)
Other noncurrent assets	(836)	(1,316)
Accounts payable	(1,328)	(1,555)
Accrued expenses	2,946	(737)
Deferred revenue	5,843	7,630
Operating lease liabilities	(269)	0
Net cash used in operating activities	(8,289)	(462)
Cash flows from investing activities:
Purchase of property and equipment	(713)	(250)
Capitalization of internal-use software costs	(594)	(381)
Net cash used in investing activities	(1,307)	(631)
Cash flows from financing activities:
Proceeds from the exercise of stock options	3,989	2,018
Cash received for tax withholding obligations on equity award settlements	7,342	287
Cash paid for tax withholding obligations on equity award settlements	(8,758)	(287)
Net cash provided by financing activities	2,573	2,018
Net increase (decrease) in cash, cash equivalents, and restricted cash	(7,023)	925
Cash, cash equivalents, and restricted cash at beginning of the period	308,295	118,863
Cash, cash equivalents, and restricted cash at end of the period	301,272	119,788
Supplemental disclosure of cash flow information:
Cash paid for income taxes	112	67
Non-cash investing and financing activities:
Vesting of early exercised options	743	179
Purchases of property and equipment included in liabilities	225	10
Capitalization of internal-use software costs	$ 282	$ 50