Net Loss Per Share Attributable to Common Stockholders - EPS (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Earnings Per Share [Abstract]
Net loss attributable to Class A and Class B common stockholders	$ (60,598)	$ (12,838)
Weighted-average shares used in computing net loss per share attributable to common stockholders - Diluted (in shares)	542,565,992	130,841,306
Weighted-average shares used in computing net loss per share attributable to common stockholders - Basic (in shares)	542,565,992	130,841,306
Net loss per share attributable to common stockholders, basic (in dollars per share)	$ (0.11)	$ (0.10)
Net loss per share attributable to common stockholders, diluted (in dollars per share)	$ (0.11)	$ (0.10)