Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Cash flows from operating activities:
Net loss	$ (124,518)	$ (116,861)	$ (94,010)
Adjustments to reconcile net loss to net cash provided by (used in) operating activities:
Depreciation and amortization	12,176	10,888	10,167
Stock-based compensation	142,862	109,779	68,585
Amortization of deferred commissions	22,264	14,147	13,106
Noncash operating lease costs	9,305	8,232	8,737
Amortization of debt discount and issuance costs	1,486	6,870	4,096
Amortization of premium and accretion of discount on marketable securities	(344)	0	0
Gain from sale of property and equipment	(21)	0	0
Changes in assets and liabilities:
Trade receivables	(18,800)	(22,950)	(19,075)
Prepaid expenses and other current assets	(6,161)	(506)	(543)
Deferred commissions	(22,033)	(21,151)	(19,131)
Other long-term assets	502	1,404	1,172
Trade payables	(2,362)	4,474	(328)
Accrued expenses and other short-term liabilities	(9,115)	5,850	16,058
Deferred revenues	5,266	5,421	(169)
Other long-term liabilities	1,364	1,581	5,493
Net cash provided by (used in) operating activities	11,871	7,178	(5,842)
Cash flows from investing activities:
Proceeds from sales and maturities of marketable securities	41,600	34,117	51,539
Investment in marketable securities	(277,871)	0	(44,124)
Proceeds from short-term and long-term deposits	15,961	80,752	74,776
Investment in short-term and long-term deposits	(142,566)	(50,000)	(97,454)
Acquisition, net of cash acquired	0	0	(29,369)
Proceeds from sale of property and equipment	21	0	0
Purchases of property and equipment	(11,396)	(10,490)	(10,116)
Net cash provided by (used in) investing activities	(374,251)	54,379	(54,748)
Cash flows from financing activities:
Proceeds from employee stock plans	11,940	11,121	10,295
Taxes paid related to net share settlement of equity awards	(31,077)	(1,043)	(502)
Repurchase of common stock	(56,444)	0	0
Proceeds from follow-on offering, net	0	500,034	0
Proceeds from issuance of convertible senior notes, net of issuance costs	0	0	245,308
Purchases of capped calls	0	0	(29,348)
Net cash provided by (used in) financing activities	(75,581)	510,112	225,753
Increase (decrease) in cash and cash equivalents	(437,961)	571,669	165,163
Cash and cash equivalents at beginning of period	805,761	234,092	68,929
Cash and cash equivalents at end of period	367,800	805,761	234,092
Supplemental disclosure of cash flow information:
Cash paid for income taxes	7,354	8,507	1,342
Cash paid for interest	3,167	3,168	1,547
Lease liabilities arising from obtaining right-of-use assets	$ 1,625	$ 22,156	$ 6,256