CONSOLIDATED STATEMENTS OF REDEEMABLE CONVERTIBLE PREFERRED STOCK AND STOCKHOLDERS' EQUITY (DEFICIT) - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-in Capital	Accumulated Other Comprehensive Income	Accumulated Deficit
Beginning balance (in shares) at Dec. 31, 2020	153,938,000
Beginning balance at Dec. 31, 2020	$ 2,895,096
Redeemable Convertible Preferred Stock
Accretion of redeemable convertible preferred stock	$ 2,646,662
Conversion of redeemable convertible preferred stock into common stock upon initial public offering (in shares)	(153,938,000)
Conversion of redeemable convertible preferred stock into common stock upon initial public offering	$ (5,541,758)
Ending balance (in shares) at Dec. 31, 2021	0
Ending balance at Dec. 31, 2021	$ 0
Beginning balance (in shares) at Dec. 31, 2020		77,619,000
Beginning balance at Dec. 31, 2020	(2,696,741)	$ 1	$ 0	$ 411	$ (2,697,153)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Accretion of redeemable convertible preferred stock	(2,646,662)		(2,264,869)		(381,793)
Conversion of redeemable convertible preferred stock into common stock upon initial public offering (in shares)		153,938,000
Conversion of redeemable convertible preferred stock into common stock upon initial public offering	5,541,758	$ 2	5,541,756
Issuance of common stock upon initial public offering, net of underwriting discount and offering expenses (in shares)		31,350,000
Issuance of common stock upon initial public offering, net of underwriting discount and offering expenses	1,062,058		1,062,058
Issuance of common stock upon exercise of stock options (in shares)		537,000
Issuance of common stock upon exercise of stock options	94		94
Issuance of common stock upon vesting and settlement of restricted stock units, net of shares withheld for tax purposes (in shares)		9,850,000
Issuance of common stock upon vesting and settlement of restricted stock units, net of shares withheld for tax purposes	(3,343)		(3,343)
Stock-based compensation	174,028		174,028
Unrealized loss on marketable securities	(1,158)			(1,158)
Net loss	(191,995)				(191,995)
Ending balance (in shares) at Dec. 31, 2021		273,294,000
Ending balance at Dec. 31, 2021	$ 1,238,039	$ 3	4,509,724	(747)	(3,270,941)
Ending balance (in shares) at Dec. 31, 2022	0
Ending balance at Dec. 31, 2022	$ 0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock upon exercise of stock options (in shares)		407,000
Issuance of common stock upon exercise of stock options	109		109
Issuance of common stock upon vesting and settlement of restricted stock units, net of shares withheld for tax purposes (in shares)		14,570,000
Issuance of common stock upon vesting and settlement of restricted stock units, net of shares withheld for tax purposes	$ (167,745)		(167,745)
Issuance of common stock under employee stock purchase plan, net of shares withheld and retired for taxes (in shares)	822,423	822,000
Issuance of common stock under employee stock purchase plan, net of shares withheld and retired for taxes	$ 10,870		10,870
Stock-based compensation	209,361		209,361
Unrealized loss on marketable securities	(6,684)			(6,684)
Net loss	(232,132)				(232,132)
Ending balance (in shares) at Dec. 31, 2022		289,093,000
Ending balance at Dec. 31, 2022	$ 1,051,818	$ 3	4,562,319	(7,431)	(3,503,073)
Ending balance (in shares) at Dec. 31, 2023	0
Ending balance at Dec. 31, 2023	$ 0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock upon exercise of stock options (in shares)	360,000	360,000
Issuance of common stock upon exercise of stock options	$ 88		88
Issuance of common stock upon vesting and settlement of restricted stock units, net of shares withheld for tax purposes (in shares)		6,615,000
Issuance of common stock upon vesting and settlement of restricted stock units, net of shares withheld for tax purposes	$ (68,621)		(68,621)
Issuance of common stock under employee stock purchase plan, net of shares withheld and retired for taxes (in shares)	627,371	627,000
Issuance of common stock under employee stock purchase plan, net of shares withheld and retired for taxes	$ 7,271		7,271
Stock-based compensation	212,465		212,465
Unrealized loss on marketable securities	7,105
Other comprehensive income	6,677			6,677
Net loss	(137,436)				(137,436)
Ending balance (in shares) at Dec. 31, 2023		296,695,000
Ending balance at Dec. 31, 2023	$ 1,072,262	$ 3	$ 4,713,522	$ (754)	$ (3,640,509)