Condensed Consolidated Statements of Stockholders' Equity - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-in Capital	Accumulated Other Comprehensive Income (loss)	Accumulated Deficit
Balance at the beginning of the period (in shares) at Dec. 31, 2021		541,383,518
Balance at the beginning of the period at Dec. 31, 2021	$ 1,573,426	$ 54	$ 1,993,055	$ (2,230)	$ (417,453)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock upon exercise of vested options (in shares)		1,604,022
Issuance of common stock upon exercise of options	2,285		2,285
Repurchase of early exercised stock options (in shares)		(22,751)
Issuance of common stock net settlement of restricted stock units (in shares)		642,827
Issuance of common stock upon net settlement of restricted stock units	(4,702)		(4,702)
Vesting of common stock warrants	2,102		2,102
Share-based compensation	37,005		37,005
Change in accumulated other comprehensive income (loss)	(5,886)			(5,886)
Net loss	(60,598)				(60,598)
Balance at the end of the period (in shares) at Mar. 31, 2022		543,607,616
Balance at the end of the period at Mar. 31, 2022	1,543,632	$ 54	2,029,745	(8,116)	(478,051)
Balance at the beginning of the period (in shares) at Dec. 31, 2021		541,383,518
Balance at the beginning of the period at Dec. 31, 2021	1,573,426	$ 54	1,993,055	(2,230)	(417,453)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Change in accumulated other comprehensive income (loss)	(8,343)
Net loss	(158,454)
Balance at the end of the period (in shares) at Sep. 30, 2022		547,861,374
Balance at the end of the period at Sep. 30, 2022	1,512,338	$ 54	2,098,764	(10,573)	(575,907)
Balance at the beginning of the period (in shares) at Mar. 31, 2022		543,607,616
Balance at the beginning of the period at Mar. 31, 2022	1,543,632	$ 54	2,029,745	(8,116)	(478,051)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock upon exercise of vested options (in shares)		1,314,467
Issuance of common stock upon exercise of options	1,543		1,543
Repurchase of early exercised stock options (in shares)		(28,268)
Issuance of common stock under employee stock purchase plan (in shares)		368,955
Issuance of common stock under employee stock purchase plan	2,775		2,775
Issuance of common stock net settlement of restricted stock units (in shares)		670,960
Issuance of common stock upon net settlement of restricted stock units	(3,878)		(3,878)
Vesting of common stock warrants	2,102		2,102
Share-based compensation	35,148		35,148
Change in accumulated other comprehensive income (loss)	(2,077)			(2,077)
Net loss	(44,688)				(44,688)
Balance at the end of the period (in shares) at Jun. 30, 2022		545,933,730
Balance at the end of the period at Jun. 30, 2022	1,534,557	$ 54	2,067,435	(10,193)	(522,739)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock upon exercise of vested options (in shares)		3,113,941
Issuance of common stock upon exercise of options	2,356		2,356
Repurchase of early exercised stock options (in shares)		0
Issuance of common stock under employee stock purchase plan (in shares)		0
Issuance of common stock under employee stock purchase plan	0		0
Issuance of common stock net settlement of restricted stock units (in shares)		772,585
Issuance of common stock upon net settlement of restricted stock units	(2,996)		(2,996)
Issuance of common stock upon exercise of common stock warrants (in shares)		0
Issuance of common stock upon exercise of common stock warrants	0		0
Vesting of common stock warrants	2,315		2,315
Share-based compensation	43,509		43,509
Repurchase and retirement of common stock, including excise tax (in shares)		(1,958,882)
Repurchase and retirement of common stock, including excise tax	(13,855)		(13,855)
Change in accumulated other comprehensive income (loss)	(380)			(380)
Net loss	(53,168)				(53,168)
Balance at the end of the period (in shares) at Sep. 30, 2022		547,861,374
Balance at the end of the period at Sep. 30, 2022	1,512,338	$ 54	2,098,764	(10,573)	(575,907)
Balance at the beginning of the period (in shares) at Dec. 31, 2022		541,364,099
Balance at the beginning of the period at Dec. 31, 2022	1,472,956	$ 53	2,082,373	(7,237)	(602,233)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock upon exercise of vested options (in shares)		803,333
Issuance of common stock upon exercise of options	1,051		1,051
Issuance of common stock net settlement of restricted stock units (in shares)		1,469,996
Issuance of common stock upon net settlement of restricted stock units	(3,746)		(3,746)
Vesting of common stock warrants	2,102		2,102
Share-based compensation	47,027		47,027
Repurchase and retirement of common stock, including excise tax (in shares)		(3,205,808)
Repurchase and retirement of common stock, including excise tax	(20,993)		(20,993)
Change in accumulated other comprehensive income (loss)	4,054			4,054
Net loss	(68,801)				(68,801)
Balance at the end of the period (in shares) at Mar. 31, 2023		540,431,620
Balance at the end of the period at Mar. 31, 2023	1,433,650	$ 53	2,107,814	(3,183)	(671,034)
Balance at the beginning of the period (in shares) at Dec. 31, 2022		541,364,099
Balance at the beginning of the period at Dec. 31, 2022	1,472,956	$ 53	2,082,373	(7,237)	(602,233)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Change in accumulated other comprehensive income (loss)	5,399
Net loss	(182,587)
Balance at the end of the period (in shares) at Sep. 30, 2023		526,585,652
Balance at the end of the period at Sep. 30, 2023	1,295,083	$ 53	2,081,689	(1,838)	(784,821)
Balance at the beginning of the period (in shares) at Mar. 31, 2023		540,431,620
Balance at the beginning of the period at Mar. 31, 2023	1,433,650	$ 53	2,107,814	(3,183)	(671,034)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock upon exercise of vested options (in shares)		827,683
Issuance of common stock upon exercise of options	1,310		1,310
Issuance of common stock under employee stock purchase plan (in shares)		446,228
Issuance of common stock under employee stock purchase plan	1,775		1,775
Issuance of common stock net settlement of restricted stock units (in shares)		2,679,165
Issuance of common stock upon net settlement of restricted stock units	(6,324)		(6,324)
Vesting of common stock warrants	2,372		2,372
Share-based compensation	45,419		45,419
Repurchase and retirement of common stock, including excise tax (in shares)		(10,168,020)
Repurchase and retirement of common stock, including excise tax	(48,497)	$ (1)	(48,496)
Change in accumulated other comprehensive income (loss)	1,707			1,707
Net loss	(58,797)				(58,797)
Balance at the end of the period (in shares) at Jun. 30, 2023		534,216,676
Balance at the end of the period at Jun. 30, 2023	1,372,615	$ 52	2,103,870	(1,476)	(729,831)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock upon exercise of vested options (in shares)		1,189,094
Issuance of common stock upon exercise of options	1,675		1,675
Repurchase of early exercised stock options (in shares)		(2,625)
Repurchase of early exercised stock options	(6)		(6)
Issuance of common stock net settlement of restricted stock units (in shares)		2,645,082
Issuance of common stock upon net settlement of restricted stock units	(8,481)		(8,483)
Issuance of common stock upon exercise of common stock warrants (in shares)		0
Issuance of common stock upon exercise of common stock warrants	0		0
Vesting of common stock warrants	2,284		2,284
Share-based compensation	46,796		46,796
Repurchase and retirement of common stock, including excise tax (in shares)		(11,462,575)
Repurchase and retirement of common stock, including excise tax	(64,448)	$ (1)	(64,447)
Change in accumulated other comprehensive income (loss)	(362)			(362)
Net loss	(54,990)				(54,990)
Balance at the end of the period (in shares) at Sep. 30, 2023		526,585,652
Balance at the end of the period at Sep. 30, 2023	$ 1,295,083	$ 53	$ 2,081,689	$ (1,838)	$ (784,821)