Condensed Consolidated Balance Sheets (Parenthetical) - USD ($)	Sep. 30, 2021	Mar. 31, 2021
Accounts receivable, net of allowance	$ 25,000,000	$ 0
Accounts Payable, related party	0	4,422,000
Accrued expenses and other current liabilities, related party	12,610,000	7,065,000
Deferred revenue, current, related party	$ 33,928,000	$ 30,140,000
Redeemable convertible preferred stock, Shares, Authorized		209,512,070
Redeemable convertible preferred stock, Shares, Issued		209,181,855
Redeemable convertible preferred stock, Shares, Outstanding	0	209,181,855
Redeemable convertible preferred stock, Liquidation Preference		$ 874,107,000
Redeemable Convertible Preferred Stock [Member]
Redeemable convertible preferred stock, Par Value	$ 0.00001	$ 0.00001
Redeemable convertible preferred stock, Shares, Authorized	10,000,000	209,512,070
Redeemable convertible preferred stock, Shares, Issued	0	209,181,855
Redeemable convertible preferred stock, Shares, Outstanding	0	209,181,855
Redeemable convertible preferred stock, Liquidation Preference	$ 0	$ 874,107,000
Class A Common Stock [Member]
Common Stock, Par value	$ 0.0001	$ 0.0001
Common Stock, Shares, Issued	93,409,227	20,713,076
Common Stock, Shares, Outstanding	93,409,227	20,713,076
Class B Common Stock [Member]
Common Stock, Par value	$ 0.0001	$ 0.0001
Common Stock, Shares, Issued	313,759,355	103,816,708
Common Stock, Shares, Outstanding	313,759,355	103,816,708