Consolidated Statements of Redeemable Convertible Preferred Stock and Stockholders' Equity (Deficit) - USD ($) $ in Thousands	Total	Previously Reported [Member]	Common Stock [Member]	Common Stock [Member] Previously Reported [Member]	Common Stock [Member] Recapitalization [Member]	Preferred Stock [Member] Redeemable Convertible Preferred Stock [Member]	Preferred Stock [Member] Redeemable Convertible Preferred Stock [Member] Previously Reported [Member]	Preferred Stock [Member] Redeemable Convertible Preferred Stock [Member] Recapitalization [Member]	Preferred Stock [Member] Series F-1 [Member]	Additional Paid-in Capital [Member]	Additional Paid-in Capital [Member] Previously Reported [Member]	Additional Paid-in Capital [Member] Recapitalization [Member]	Accumulated Other Comprehensive Income Loss	Accumulated Deficit [Member]	Accumulated Deficit [Member] Previously Reported [Member]
Recapitalization					$ 9							$ (9)
Recapitalization Shares					54,236,376			111,831,592
Beginning Balance at Mar. 31, 2019	$ (441,282)	$ (441,282)	$ 9	$ 0		$ 755,083	$ 755,083			$ 101,465	$ 101,474			$ (542,756)	$ (542,756)
Beginning Balance, Shares at Mar. 31, 2019			96,159,892	41,923,516		198,274,933	86,443,341
Issuance of common stock upon exercise of stock options	8,732									8,732
Issuance of common stock upon exercise of stock options, Shares			5,492,907
Vesting Early Exercised Stock Options	16,962									16,962
Stock-based compensation expense	45,568									45,568
Other comprehensive loss	0
Net loss	(250,863)													(250,863)
Ending Balance at Mar. 31, 2020	(620,883)	$ (45,568)	$ 9			$ 755,083				172,727	$ 45,568			(793,619)
Ending Balance, Shares at Mar. 31, 2020			101,652,799			198,274,933
Issuance of common stock upon exercise of stock options	29,092		$ 1							29,091
Issuance of common stock upon exercise of stock options, Shares			11,768,079
Issuance of Series F-1 redeemable convertible preferred stock at $17.35 per share, net of issuance costs of $232									$ 82,268
Issuance of Series F-1 redeemable convertible preferred stock at $17.35 per share, net of issuance costs of $232, Shares									10,906,922
Issuance of common stock related to early exercise of stock options, shares			11,108,906
Vesting Early Exercised Stock Options	91,046		$ 2							91,044
Stock-based compensation expense	88,745									88,745
Other comprehensive loss	0
Net loss	(183,619)													(183,619)
Ending Balance at Mar. 31, 2021	(595,619)		$ 12			$ 837,351				381,607				(977,238)
Ending Balance, Shares at Mar. 31, 2021			124,529,784			209,181,855
Preferred stock conversion	837,351		$ 21			$ (837,351)				837,330
Preferred stock conversion, shares			(209,181,855)			209,181,855
Issuance of common stock for acquisition of business	322,845		$ 3							322,842
Issuance of common stock for acquisition of business, Shares			30,572,268
Issuance of Common Stock for Class A Common Stock Warrant Exercise	42,356		$ 1							42,355
Issuance of Common Stock for Class A Common Stock Warrant Exercise, Shares			6,016,347
Issuance of common stock upon Merger	200,579		$ 5							200,574
Issuance Of Common Stock Upon Merger			46,901,747
Issuance of PIPE shares	250,000		$ 3							249,997
Issuance of PIPE shares, shares			25,000,000
Issuance of common stock upon exercise of stock options	$ 16,831									16,831
Issuance of common stock upon exercise of stock options, Shares	5,808,526		5,808,526
Vesting Early Exercised Stock Options	$ 0
Stock-based compensation expense	58,624									58,624
Issuance of common stock upon release of RSUs			801,794
Other comprehensive loss	179												$ 179
Net loss	(217,490)													(217,490)
Ending Balance at Mar. 31, 2022	$ 915,656		$ 45							$ 2,110,160			$ 179	$ (1,194,728)
Ending Balance, Shares at Mar. 31, 2022			448,812,321