Condensed Consolidated Statements of Stockholders' Equity - USD ($) shares in Thousands, $ in Thousands	Total	Class A and Class B Common Stock	Additional Paid-In Capital	Accumulated Other Comprehensive Income/(Loss)	Accumulated Deficit	Non- Controlling Interest
Balances beginning ( in shares) at Dec. 31, 2021		585,878
Balance beginning at Dec. 31, 2021	$ 592,923	$ 58	$ 1,568,638	$ 62	$ (983,941)	$ 8,106
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock upon exercise of stock options (in shares)		4,150
Issuance of common stock upon exercise of stock options	10,176	$ 1	10,175			0
Issuance of common stock under Employee Stock Purchase Plan (in shares)		335
Issuance of common stock under Employee Stock Purchase Plan	14,243		14,243
Vesting of restricted stock units (in shares)		1,808
Withholding taxes related to net share settlement of restricted stock units (in shares)		(3)
Withholding taxes related to net share settlement of restricted stock units	(150)		(150)
Stock-based compensation expense	112,295		112,295
Other (in shares)		28
Other comprehensive income/(loss)	(6)			(92)		86
Net loss	(162,020)				(160,202)	(1,818)
Balance ending (Shares) at Mar. 31, 2022		592,196
Balance ending at Mar. 31, 2022	$ 567,461	$ 59	1,705,201	(30)	(1,144,143)	6,374
Balances beginning ( in shares) at Dec. 31, 2022	604,674	604,674
Balance beginning at Dec. 31, 2022	$ 305,035	$ 59	2,213,603	671	(1,908,307)	(991)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock upon exercise of stock options (in shares)	2,263	2,263
Issuance of common stock upon exercise of stock options	$ 5,913	$ 1	5,912
Issuance of common stock under Employee Stock Purchase Plan (in shares)		639
Issuance of common stock under Employee Stock Purchase Plan	19,921		19,921
Vesting of restricted stock units (in shares)		2,911
Stock-based compensation expense	184,904		184,904
Other comprehensive income/(loss)	(643)			(609)		(34)
Net loss	$ (269,948)				(268,313)	(1,635)
Balance ending (Shares) at Mar. 31, 2023	610,487	610,487
Balance ending at Mar. 31, 2023	$ 245,182	$ 60	$ 2,424,340	$ 62	$ (2,176,620)	$ (2,660)