CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Thousands		Jan. 31, 2021	Apr. 30, 2020
Accounts receivable, allowance		$ 762	$ 755
Common stock, shares outstanding (in shares)		3,499,992
Accounts receivable, net, from related party		$ 1,030	250
Deferred revenue, current, from related party	[1]	59,950	53,537
Related Party
Deferred revenue, current, from related party		$ 9,358	$ 1,499
Redeemable Convertible Preferred Stock
Par value (in dollars per share)		$ 0.001	$ 0.001
Shares authorized (in shares)		0	233,107,379
Shares issued (in shares)		0	37,128,768
Shares outstanding (in shares)		0	37,128,768
Liquidation preference			$ 376,178
Redeemable Convertible A-1 Common Stock
Par value (in dollars per share)		$ 0.001	$ 0.001
Shares authorized (in shares)		0	6,666,667
Shares issued (in shares)		0	6,666,665
Shares outstanding (in shares)		0	6,666,665
Liquidation preference			$ 18,800
Class A Common Stock
Common stock, par value (in dollars per share)		$ 0.001	$ 0.001
Common stock, shares authorized (in shares)		1,000,000,000	390,000,000
Common stock, shares issued (in shares)		97,431,675	31,210,159
Common stock, shares outstanding (in shares)		97,431,675	31,210,159
Class B Common Stock
Common stock, par value (in dollars per share)		$ 0.001	$ 0.001
Common stock, shares authorized (in shares)		3,500,000	21,000,000
Common stock, shares issued (in shares)		3,499,992	0
Common stock, shares outstanding (in shares)			0

[1] Including amounts from a related party of $9,358 and $1,499 as of January 31, 2021 and April 30, 2020, respectively.