Net Income (Loss) Per Share - Calculation (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Dec. 31, 2021
Numerator:
Net loss	$ (50,078)	$ (52,162)
Interest expense to be recognized upon conversion of Convertible Notes	(55,185)	0
Numerator for diluted EPS - Net loss after the effect of dilutive securities	$ (105,263)	$ (52,162)
Denominator:
Weighted-average shares used in computing net loss per share of common stock, basic (in shares)	222,276	6,021
Convertible Notes (in shares)	24,855	0
Diluted weighted average shares (in shares)	247,131	6,021
Net loss per share of common stock:
Basic (in dollars per share)	$ (0.23)	$ (8.66)
Diluted (in dollars per share)	$ (0.43)	$ (8.66)
Debt Instrument [Line Items]
Interest expense	$ 7,100
Convertible Notes
Debt Instrument [Line Items]
Unamortized debt discount			$ 62,300