Net Loss Per Share Attributable to Common Stockholders - Schedule of Basic and Diluted Net Loss Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended						9 Months Ended
	Dec. 31, 2023	Sep. 30, 2023	Jun. 30, 2023	Dec. 31, 2022	Sep. 30, 2022	Jun. 30, 2022	Dec. 31, 2023	Dec. 31, 2022
Numerator:
Net loss attributable to common stockholders	$ (277,976)	$ (75,270)	$ (104,624)	$ (91,961)	$ (66,065)	$ (89,532)	$ (457,870)	$ (247,558)
Denominator:
Weighted-average shares used in computing net loss per share attributable to common stockholders, basic (shares)	480,809,546			453,407,202			472,683,220	449,949,829
Weighted-average shares used in computing net loss per share attributable to common stockholders, diluted (shares)	480,809,546			453,407,202			472,683,220	449,949,829
Net loss per share of Class A and Class B common stock attributable to common stockholders:
Net loss per share attributable to common stockholders, basic (usd per share)	$ (0.58)			$ (0.20)			$ (0.97)	$ (0.55)
Net loss per share attributable to common stockholders, diluted (usd per share)	$ (0.58)			$ (0.20)			$ (0.97)	$ (0.55)
Class A Common Stock
Numerator:
Net loss attributable to common stockholders	$ (181,143)			$ (57,490)			$ (295,367)	$ (144,000)
Denominator:
Weighted-average shares used in computing net loss per share attributable to common stockholders, basic (shares)	313,320,274			283,449,950			304,922,409	261,728,144
Weighted-average shares used in computing net loss per share attributable to common stockholders, diluted (shares)	313,320,274			283,449,950			304,922,409	261,728,144
Net loss per share of Class A and Class B common stock attributable to common stockholders:
Net loss per share attributable to common stockholders, basic (usd per share)	$ (0.58)			$ (0.20)			$ (0.97)	$ (0.55)
Net loss per share attributable to common stockholders, diluted (usd per share)	$ (0.58)			$ (0.20)			$ (0.97)	$ (0.55)
Class B Common Stock
Numerator:
Net loss attributable to common stockholders	$ (96,833)			$ (34,471)			$ (162,503)	$ (103,558)
Denominator:
Weighted-average shares used in computing net loss per share attributable to common stockholders, basic (shares)	167,489,272			169,957,252			167,760,811	188,221,685
Weighted-average shares used in computing net loss per share attributable to common stockholders, diluted (shares)	167,489,272			169,957,252			167,760,811	188,221,685
Net loss per share of Class A and Class B common stock attributable to common stockholders:
Net loss per share attributable to common stockholders, basic (usd per share)	$ (0.58)			$ (0.20)			$ (0.97)	$ (0.55)
Net loss per share attributable to common stockholders, diluted (usd per share)	$ (0.58)			$ (0.20)			$ (0.97)	$ (0.55)