Net Loss per Share - Calculation (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended				6 Months Ended
	Jun. 30, 2022	Mar. 31, 2022	Jun. 30, 2021	Mar. 31, 2021	Jun. 30, 2022	Jun. 30, 2021
Numerator:
Net loss	$ (75,491)	$ (209,294)	$ (518,601)	$ (295,033)	$ (284,785)	$ (813,634)
Denominator:
Weighted-average shares used in computing net loss per share attributable to Class A and Class B common stockholders, basic (in shares)	1,763,264		1,743,109		1,760,019	1,092,626
Weighted-average shares used in computing net loss per share attributable to Class A and Class B common stockholders, diluted (in shares)	1,763,264		1,743,109		1,760,019	1,092,626
Earnings Per Share, Basic [Abstract]
Net loss attributable to Class A and Class B common stockholders per share, basic (in dollars per share)	$ (0.04)		$ (0.30)		$ (0.16)	$ (0.74)
Earnings Per Share, Diluted [Abstract]
Net loss attributable to Class A and Class B common stockholders per share, diluted (in dollars per share)	$ (0.04)		$ (0.30)		$ (0.16)	$ (0.74)