CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands		12 Months Ended
		Apr. 30, 2023	Apr. 30, 2022	Apr. 30, 2021
Cash flows from operating activities:
Net loss		$ (268,839)	$ (192,065)	$ (55,696)
Adjustments to reconcile net loss to net cash used in operating activities
Depreciation and amortization		6,088	5,190	4,297
Non-cash operating lease cost		6,992	4,185	3,315
Stock-based compensation expense		216,542	113,441	21,740
Other		(4,309)	1,601	(180)
Changes in operating assets and liabilities
Accounts receivable	[1]	(54,517)	(14,156)	(34,690)
Prepaid expenses, other current assets and other assets	[2]	(576)	(14,578)	(14,855)
Accounts payable	[3]	(22,041)	34,481	7,450
Accrued compensation and employee benefits		3,193	10,394	8,135
Operating lease liabilities		13,641	(3,266)	(3,551)
Other liabilities	[4]	(10,573)	(5,604)	11,549
Deferred revenue	[5]	(1,292)	(26,085)	14,933
Net cash used in operating activities		(115,691)	(86,462)	(37,553)
Cash flows from investing activities:
Purchases of property and equipment		(70,518)	(3,791)	(1,628)
Capitalized software development costs		(1,000)	(500)	0
Proceeds from sale of non-marketable equity security		0	0	725
Purchases of investments		(745,249)	(796,487)	(1,152,142)
Maturities and sales of investments		876,713	1,117,793	385,893
Net cash provided by (used in) investing activities		59,946	317,015	(767,152)
Cash flows from financing activities:
Proceeds from initial public offering and private placements, net of underwriting discounts		0	0	851,859
Proceeds from repayment of shareholder loan		0	0	26,003
Taxes paid related to net share settlement of equity awards		(6,940)	0	0
Repurchase and retirement of Class A Common stock		0	(15,000)	0
Payment of deferred offering costs		0	(105)	(7,179)
Proceeds from issuance of Class A common stock under employee stock purchase plan		3,093	0	0
Proceeds from exercise of Class A common stock options		4,468	20,816	16,673
Net cash provided by financing activities		621	5,711	887,356
Net (decrease) increase in cash, cash equivalents and restricted cash		(55,124)	236,264	82,651
Cash, cash equivalents and restricted cash at beginning of period		352,519	116,255	33,604
Cash and cash equivalents		284,829	339,528	115,355
Restricted cash included in prepaid expenses and other current assets		0	425	0
Restricted cash included in other assets, non-current		12,566	12,566	900
Cash, cash equivalents and restricted cash at end of period		297,395	352,519	116,255
Total cash, cash equivalents and restricted cash		297,395	352,519	116,255
Supplemental disclosure of cash flow information—cash paid for income taxes		578	939	550
Supplemental disclosures of non-cash investing and financing activities:
Purchases of property and equipment included in accounts payable and accrued liabilities		13,814	9,261	212
Right-of-use assets obtained in exchange for lease obligations (including remeasurement of right-of-use assets and lease liabilities due to changes in the timing of receipt of lease incentives)		(5,589)	26,529	0
Right-of-use assets obtained in exchange for lease obligations arising from lease modifications		3,093	1,572	0
Unpaid liabilities related to intangible purchases		1,500	2,500	0
Receivable from exercise of stock options included in prepaid expenses, other current assets and other assets		61	29	0
Deferred offering costs included in accounts payable and accrued liabilities		0	0	105
Vesting of early exercised stock options		$ 1,006	$ 2,746	$ 2,869

[1] Including changes in related party balances of $38,772, $20,668, and $(14,930) for the fiscal years ended April 30, 2023, 2022 and 2021, respectively.

[2] Including changes in related party balances of $(4,741), $12,739 and $8,264 for the fiscal years ended April 30, 2023, 2022 and 2021, respectively.

[3] Including changes in related party balances of $(16,349), $18,493 and $56 for the fiscal years ended April 30, 2023, 2022 and 2021, respectively.

[4] Including changes in related party balances of $(2,510), $(3,350) and $8,308 for the fiscal years ended April 30, 2023, 2022 and 2021, respectively.

[5] Including changes in related party balances of $117, $(7,565), and $6,198 for the fiscal years ended April 30, 2023, 2022 and 2021, respectively.