Net Loss Per Share - Computation of Basic and Diluted Net Loss Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Numerator:
Net loss	$ (69,753)	$ (7,429)	$ (118,812)	$ (9,844)
Accretion of redeemable convertible preferred stock	0	597,955	0	381,824
Net income (loss) available to common stockholders, basic, total	(69,753)	(605,384)	(118,812)	(391,668)
Net income (loss) available to common stockholders, diluted, total	$ (69,753)	$ (605,384)	$ (118,812)	$ (391,668)
Denominator:
Weighted-average shares used in computing net loss per share attributable to common stockholders - basic (in shares)	284,761	77,753	281,492	77,724
Weighted-average shares used in computing net loss per share attributable to common stockholders - diluted (in shares)	284,761	77,753	281,492	77,724
Net loss per share attributable to Class A and Class B common stockholders - diluted (in dollars per share)	$ (0.24)	$ (7.79)	$ (0.42)	$ (5.04)
Net loss per share attributable to Class A and Class B common stockholders - basic (in dollars per share)	$ (0.24)	$ (7.79)	$ (0.42)	$ (5.04)