CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands		12 Months Ended
		Apr. 30, 2022	Apr. 30, 2021	Apr. 30, 2020
Cash flows from operating activities:
Net loss		$ (192,065)	$ (55,696)	$ (69,378)
Adjustments to reconcile net loss to net cash used in operating activities
Depreciation and amortization		5,190	4,297	1,302
Non-cash operating lease cost		4,185	3,315	3,052
Stock-based compensation expense		113,441	21,740	8,310
Impairment on investment		0	0	1,025
Other		1,601	(180)	(657)
Changes in operating assets and liabilities
Accounts receivable	[1]	(14,156)	(34,690)	32,659
Prepaid expenses, other current assets and other assets	[2]	(14,578)	(14,855)	(4,265)
Accounts payable	[3]	34,481	7,450	(1,219)
Accrued compensation and employee benefits		10,394	8,135	651
Operating lease liabilities		(3,266)	(3,551)	(3,174)
Other liabilities	[4]	(5,604)	11,549	1,343
Deferred revenue	[5]	(26,085)	14,933	(30,930)
Net cash used in operating activities		(86,462)	(37,553)	(61,281)
Cash flows from investing activities:
Purchases of property and equipment		(3,791)	(1,628)	(2,298)
Capitalized software development costs		(500)	0	(581)
Proceeds from sale of non-marketable equity security		0	725	0
Purchases of investments		(796,487)	(1,152,142)	(219,853)
Maturities and sales of investments		1,117,793	385,893	98,659
Net cash provided by (used in) investing activities		317,015	(767,152)	(124,073)
Cash flows from financing activities:
Proceeds from initial public offering and private placements, net of underwriting discounts		0	851,859	0
Proceeds from repayment of shareholder loan		0	26,003	0
Repurchase of common stock and options in tender offer		0	0	(3,548)
Repurchase and retirement of Class A Common stock		(15,000)	0	0
Payment of deferred offering costs		(105)	(7,179)	0
Proceeds from issuance of common stock		0	0	44,027
Proceeds from exercise of Class A common stock options		20,816	16,673	4,203
Net cash provided by financing activities		5,711	887,356	119,851
Net increase (decrease) in cash, cash equivalents and restricted cash		236,264	82,651	(65,503)
Cash, cash equivalents and restricted cash at beginning of period		116,255	33,604	99,107
Cash and cash equivalents		339,528	115,355	33,104
Restricted cash included in other assets, non-current		12,566	900	500
Restricted cash included in prepaid expenses and other current assets		425	0	0
Cash, cash equivalents and restricted cash at end of period		352,519	116,255	33,604
Total cash, cash equivalents and restricted cash		352,519	116,255	33,604
Supplemental disclosure of cash flow information—cash paid for income taxes		939	550	660
Supplemental disclosures of non-cash investing and financing activities:
Purchases of property and equipment included in accounts payable and accrued liabilities		9,261	212	417
Right-of-use assets obtained in exchange for lease obligations		26,529	0	0
Right-of-use assets obtained in exchange for lease obligations arising from lease modifications		1,572	0	0
Unpaid liabilities related to intangible purchases		2,500	0	0
Receivable from exercise of stock options included in prepaid expenses, other current assets and other assets		29	0	0
Deferred offering costs included in accounts payable and accrued liabilities		0	105	0
Vesting of early exercised stock options		2,746	2,869	655
Series G Preferred Stock
Cash flows from financing activities:
Proceeds from issuance of stock, net of issuance costs		0	0	25,333
Series H Preferred Stock
Cash flows from financing activities:
Proceeds from issuance of stock, net of issuance costs		$ 0	$ 0	$ 49,836

[1] Including changes in related party balances of $20,668, $(14,930), and $19,750 for the fiscal years ended April 30, 2022, 2021 and 2020, respectively.

[2] Including changes in related party balances of $12,739, $8,264 and nil for the fiscal years ended April 30, 2022, 2021 and 2020, respectively.

[3] Including changes in related party balances of $18,493, $56 and nil for the fiscal years ended April 30, 2022, 2021 and 2020, respectively.

[4] Including changes in related party balances of $(3,350), $8,308 and nil for the fiscal years ended April 30, 2022, 2021 and 2020, respectively.

[5] Including changes in related party balances of $(7,565), $6,198, and $(18,445) for the fiscal years ended April 30, 2022, 2021 and 2020, respectively.