Condensed Consolidated Statements of Cash Flows (unaudited) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Cash flows from operating activities:
Net loss	$ (93,377)	$ (74,983)	$ (24,567)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization	4,662	3,093	1,690
Stock-based compensation expense	67,223	34,394	16,553
Other	42	1,802	674
Non-cash operating lease costs	3,731	0	0
Changes in operating assets and liabilities:
Accounts receivable	(2,427)	(3,033)	(5,561)
Prepaid expenses and other current assets	(1,014)	(12,222)	(1,469)
Deferred commissions	(8,032)	(9,245)	(7,180)
Other noncurrent assets	5,036	(4,491)	(5,719)
Accounts payable	(2,884)	(1,054)	2,414
Accrued expenses	4,574	5,556	1,726
Deferred revenue	20,698	28,470	11,047
Operating lease liabilities	(3,616)	0	0
Net cash used in operating activities	(5,384)	(31,713)	(10,392)
Cash flows from investing activity:
Purchases of marketable securities	(83,190)	0	0
Purchase of property and equipment	(3,632)	(1,529)	(984)
Capitalization of internal-use software costs	(2,177)	(1,693)	(1,224)
Cash paid for acquisitions, net of cash acquired	(394)	1,724	(3,700)
Net cash used in investing activities	(89,393)	(1,498)	(5,908)
Cash flows from financing activity:
Proceeds from the exercise of stock options	6,910	21,783	4,427
Proceeds from issuance of redeemable convertible preferred stock, net	0	199,802	49,820
Cash received for tax withholding obligations on equity award settlements	17,992	145,481	1,299
Cash paid for tax withholding obligations on equity award settlements	(19,056)	(144,420)	(1,299)
Repurchase of unvested stock options	(15)	(3)	(2)
Net cash provided by financing activities	5,831	222,643	54,245
Net increase (decrease) in cash, cash equivalents, and restricted cash	(88,946)	189,432	37,945
Cash, cash equivalents, and restricted cash at beginning of year	308,295	118,863	80,918
Cash, cash equivalents, and restricted cash at end of year	219,349	308,295	118,863
Supplemental disclosure of cash flow information:
Cash paid for income taxes	424	182	221
Noncash investing and financing activity:
Vesting of early exercised options	2,323	1,881	136
Purchases of property and equipment included in liabilities	11	0	0
Stock-based compensation capitalized as internal-use software costs	$ 1,353	$ 379	$ 0