CONSOLIDATED STATEMENTS OF STOCKHOLDERS’ EQUITY - USD ($) $ in Thousands	Total	Cumulative Effect, Period of Adoption, Adjustment	Additional paid-in capital	Additional paid-in capital Cumulative Effect, Period of Adoption, Adjustment	Accumulated deficit	Accumulated deficit Cumulative Effect, Period of Adoption, Adjustment	Accumulated other comprehensive income (loss)	Class A common stock	Class A common stock Common Stock	Class B common stock	Class B common stock Common Stock
Accounting Standards Update [Extensible List]	Accounting Standards Update 2016-02 [Member]
Beginning balance (in shares) at Dec. 31, 2020									249,401,000		59,239,000
Beginning balance at Dec. 31, 2020	$ 816,940		$ 1,236,993		$ (420,520)		$ 163		$ 249		$ 55
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock in connection with acquisition (in shares)									9,000
Issuance of common stock in connection with acquisition	$ 1,565		1,565
Issuance of unvested restricted stock in connection with acquisition (in shares)									39,000
Issuance of common stock upon exercise of stock options (in shares)	4,455,000								686,000		3,727,000
Issuance of common stock upon exercise of stock options	$ 21,386		21,381						$ 1		$ 4
Repurchases of unvested common stock (in shares)									(75,000)
Issuance of common stock related to early exercised stock options (in shares)											42,000
Vesting of shares issued upon early exercise of stock options	3,879		3,877								$ 2
Issuance of common stock related to settlement of RSUs (in shares)									1,457,000		1,297,000
Issuance of common stock related to settlement of RSUs	(1)		(3)						$ 1		$ 1
Tax withholding on RSU settlement (in shares)											(29,000)
Tax withholding on RSU settlement	(3,634)		(3,634)
Conversion of Class B to Class A common stock (in shares)									18,372,000		(18,372,000)
Conversion of Class B to Class A common stock	0								$ 18		$ (18)
Equity component of convertible senior notes, net of issuance costs	262,077		262,077
Purchases of capped calls related to convertible senior notes	(86,293)		(86,293)
Settlement of common stock in connection with convertible senior notes (in shares)									7,559,000
Settlement of common stock in connection with convertible senior notes	920,249		920,241						$ 8
Equity component of extinguishment of convertible senior notes	(965,684)		(965,684)
Temporary equity reclassification	(4,439)		(4,439)
Common stock issued under employee stock purchase plan (in shares)									260,000
Common stock issued under employee stock purchase plan	14,984		14,984						$ 0
Stock-based compensation	93,447		93,447
Net loss	(260,309)				(260,309)				$ (219,939)		$ (40,370)
Other comprehensive (loss) income	(2,808)						(2,808)
Ending balance (in shares) at Dec. 31, 2021									277,708,000		45,904,000
Ending balance at Dec. 31, 2021	811,359	$ (284,437)	1,494,512	$ (318,756)	(680,829)	$ 34,319	(2,645)		$ 277		$ 44
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock in connection with acquisition (in shares)									522,000
Issuance of common stock in connection with acquisition	$ 65,505		65,504						$ 1
Issuance of unvested restricted stock in connection with acquisition (in shares)									52,000
Issuance of common stock upon exercise of stock options (in shares)	2,484,000								249,000		2,194,000
Issuance of common stock upon exercise of stock options	$ 10,000		9,998						$ 0		$ 2
Repurchases of unvested common stock (in shares)									(1,000)
Issuance of common stock related to early exercised stock options (in shares)											41,000
Vesting of shares issued upon early exercise of stock options	2,862		2,861								$ 1
Issuance of common stock related to settlement of RSUs (in shares)									1,723,000		1,125,000
Issuance of common stock related to settlement of RSUs	0		(3)						$ 2		$ 1
Tax withholding on RSU settlement (in shares)											(32,000)
Tax withholding on RSU settlement	(2,483)		(2,483)
Conversion of Class B to Class A common stock (in shares)									5,707,000		(5,707,000)
Conversion of Class B to Class A common stock	0								$ 6		$ (6)
Settlement of common stock in connection with convertible senior notes (in shares)									299,000
Settlement of common stock in connection with convertible senior notes	(201)		(201)
Common stock issued under employee stock purchase plan (in shares)									302,000
Common stock issued under employee stock purchase plan	15,291		15,291
Stock-based compensation	208,700		208,700
Net loss	(193,381)				(193,381)				$ (167,770)		$ (25,611)
Other comprehensive (loss) income	(9,251)						(9,251)
Ending balance (in shares) at Dec. 31, 2022								286,560,947	286,561,000	43,524,514	43,525,000
Ending balance at Dec. 31, 2022	$ 623,964		1,475,423		(839,891)		(11,896)		$ 286		$ 42
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock upon exercise of stock options (in shares)	2,989,000								448,000		2,541,000
Issuance of common stock upon exercise of stock options	$ 14,851		14,848								$ 3
Repurchases of unvested common stock (in shares)									(17,000)
Vesting of shares issued upon early exercise of stock options	1,761		1,760								$ 1
Issuance of common stock related to settlement of RSUs (in shares)									3,291,000		398,000
Issuance of common stock related to settlement of RSUs	0		(4)						$ 3		$ 1
Tax withholding on RSU settlement (in shares)									(105,000)		(18,000)
Tax withholding on RSU settlement	(7,953)		(7,953)
Conversion of Class B to Class A common stock (in shares)									7,003,000		(7,003,000)
Conversion of Class B to Class A common stock	0								$ 7		$ (7)
Settlement of common stock in connection with convertible senior notes (in shares)									461,000
Settlement of common stock in connection with convertible senior notes	46		46
Common stock issued under employee stock purchase plan (in shares)									447,000
Common stock issued under employee stock purchase plan	19,083		19,082						$ 1
Stock-based compensation	281,364		281,364
Net loss	(183,949)				(183,949)				$ (161,296)		$ (22,653)
Other comprehensive (loss) income	13,880						13,880
Ending balance (in shares) at Dec. 31, 2023								298,088,556	298,089,000	39,443,337	39,443,000
Ending balance at Dec. 31, 2023	$ 763,047		$ 1,784,566		$ (1,023,840)		$ 1,984		$ 297		$ 40