Condensed Consolidated Statements of Stockholders' Equity (Deficit) (Unaudited) - USD ($) $ in Thousands	Total	Common Stock [Member] Class A and Class B common stock	Additional Paid-in Capital	Accumulated other comprehensive loss	Accumulated Deficit
Beginning balance at Dec. 31, 2022	$ 294,969	$ 1	$ 568,889	$ (754)	$ (273,167)
Beginning balance, shares at Dec. 31, 2022		114,199,000
Stock-based compensation expense	20,409		20,409
Exercise of stock options	1,687		1,687
Exercise of stock options, shares		554,000
Vesting of early exercised stock options	198		198
Vesting of restricted stock units, shares		875,000
Repurchase of unvested stock options, shares		(46,000)
Net Income (Loss)	(26,315)				(26,315)
Other comprehensive income (loss), net	272			272
Ending balance at Mar. 31, 2023	291,220	$ 1	591,183	(482)	(299,482)
Ending balance, shares at Mar. 31, 2023		115,582,000
Beginning balance at Dec. 31, 2022	294,969	$ 1	568,889	(754)	(273,167)
Beginning balance, shares at Dec. 31, 2022		114,199,000
Net Income (Loss)	(71,820)
Ending balance at Sep. 30, 2023	291,574	$ 1	637,157	(597)	(344,987)
Ending balance, shares at Sep. 30, 2023		118,796,000
Beginning balance at Mar. 31, 2023	291,220	$ 1	591,183	(482)	(299,482)
Beginning balance, shares at Mar. 31, 2023		115,582,000
Stock-based compensation expense	22,300		22,300
Exercise of stock options	699		699
Exercise of stock options, shares		228,000
Issuance of common stock under employee share purchase plan	2,564		2,564
Issuance of common stock under employee share purchase plan, Shares		302,000
Vesting of early exercised stock options	207		207
Vesting of restricted stock units, shares		1,378,000
Net Income (Loss)	(27,758)				(27,758)
Other comprehensive income (loss), net	(382)			(382)
Ending balance at Jun. 30, 2023	288,850	$ 1	616,953	(864)	(327,240)
Ending balance, shares at Jun. 30, 2023		117,490,000
Stock-based compensation expense	23,593		23,593
Exercise of stock options	1,183		1,183
Exercise of stock options, shares		528,000
Vesting of early exercised stock options	155		155
Vesting of restricted stock units, shares		1,193,000
Tax withholding on net share settlement of restricted stock units	(4,727)		(4,727)
Tax withholding on net share settlement of restricted stock units, shares		(415,000)
Net Income (Loss)	(17,747)				(17,747)
Other comprehensive income (loss), net	267			267
Ending balance at Sep. 30, 2023	291,574	$ 1	637,157	(597)	(344,987)
Ending balance, shares at Sep. 30, 2023		118,796,000
Beginning balance at Dec. 31, 2023	294,753	$ 1	658,463	(181)	(363,530)
Beginning balance, shares at Dec. 31, 2023		120,010,000
Stock-based compensation expense	21,765		21,765
Exercise of stock options	1,794		1,794
Exercise of stock options, shares		699,000
Vesting of early exercised stock options	20		20
Vesting of restricted stock units, shares		1,442,000
Tax withholding on net share settlement of restricted stock units	(7,729)		(7,729)
Tax withholding on net share settlement of restricted stock units, shares		(542,000)
Net Income (Loss)	(21,460)				(21,460)
Other comprehensive income (loss), net	67			67
Ending balance at Mar. 31, 2024	289,210	$ 1	674,313	(114)	(384,990)
Ending balance, shares at Mar. 31, 2024		121,609,000
Beginning balance at Dec. 31, 2023	$ 294,753	$ 1	658,463	(181)	(363,530)
Beginning balance, shares at Dec. 31, 2023		120,010,000
Exercise of stock options, shares	2,031,678
Net Income (Loss)	$ (61,729)
Ending balance at Sep. 30, 2024	290,027	$ 1	715,285	0	(425,259)
Ending balance, shares at Sep. 30, 2024		125,432,000
Beginning balance at Mar. 31, 2024	289,210	$ 1	674,313	(114)	(384,990)
Beginning balance, shares at Mar. 31, 2024		121,609,000
Stock-based compensation expense	24,421		24,421
Exercise of stock options	1,463		1,463
Exercise of stock options, shares		503,000
Issuance of common stock under employee share purchase plan	2,030		2,030
Issuance of common stock under employee share purchase plan, Shares		256,000
Vesting of restricted stock units, shares		1,847,000
Tax withholding on net share settlement of restricted stock units	(6,449)		(6,449)
Tax withholding on net share settlement of restricted stock units, shares		(680,000)
Net Income (Loss)	(23,415)				(23,415)
Other comprehensive income (loss), net	67			67
Ending balance at Jun. 30, 2024	287,327	$ 1	695,778	(47)	(408,405)
Ending balance, shares at Jun. 30, 2024		123,535,000
Stock-based compensation expense	22,792		22,792
Exercise of stock options	2,346		2,346
Exercise of stock options, shares		830,000
Vesting of restricted stock units, shares		1,730,000
Tax withholding on net share settlement of restricted stock units	(5,631)		(5,631)
Tax withholding on net share settlement of restricted stock units, shares		(663,000)
Net Income (Loss)	(16,854)				(16,854)
Other comprehensive income (loss), net	47			47
Ending balance at Sep. 30, 2024	$ 290,027	$ 1	$ 715,285	$ 0	$ (425,259)
Ending balance, shares at Sep. 30, 2024		125,432,000