CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands		12 Months Ended
		Apr. 30, 2024	Apr. 30, 2023	Apr. 30, 2022
Cash flows from operating activities:
Net loss		$ (279,696)	$ (268,839)	$ (192,065)
Adjustments to reconcile net loss to net cash used in operating activities
Depreciation and amortization		12,719	6,088	5,190
Non-cash operating lease cost		742	6,992	4,185
Stock-based compensation expense		215,761	216,542	113,441
Accretion of discounts on marketable securities		(17,214)	(4,558)	1,765
Other		98	249	(164)
Changes in operating assets and liabilities
Accounts receivable	[1]	4,522	(54,517)	(14,156)
Prepaid expenses, other current assets and other assets	[2]	3,208	(576)	(14,578)
Accounts payable	[3]	(12,883)	(22,041)	34,481
Accrued compensation and employee benefits		(6,218)	3,193	10,394
Operating lease liabilities		17,332	13,641	(3,266)
Other liabilities	[4]	8,155	(10,573)	(5,604)
Deferred revenue	[5]	(8,888)	(1,292)	(26,085)
Net cash used in operating activities		(62,362)	(115,691)	(86,462)
Cash flows from investing activities:
Purchases of property and equipment		(25,256)	(70,518)	(3,791)
Capitalized software development costs		(2,750)	(1,000)	(500)
Purchases of investments		(827,901)	(745,249)	(796,487)
Maturities and sales of investments		789,292	876,713	1,117,793
Net cash (used in) provided by investing activities		(66,615)	59,946	317,015
Cash flows from financing activities:
Taxes paid related to net share settlement of equity awards		(13,220)	(6,940)	0
Repurchase and retirement of Class A Common stock		0	0	(15,000)
Payment of deferred offering costs		0	0	(105)
Proceeds from issuance of Class A common stock under employee stock purchase plan		10,763	3,093	0
Proceeds from exercise of Class A common stock options		13,751	4,468	20,816
Net cash provided by financing activities		11,294	621	5,711
Net (decrease) increase in cash, cash equivalents and restricted cash		(117,683)	(55,124)	236,264
Cash, cash equivalents and restricted cash at beginning of period		297,395	352,519	116,255
Cash and cash equivalents		167,146	284,829	339,528
Restricted cash included in prepaid expenses and other current assets		0	0	425
Restricted cash included in other assets, non-current		12,566	12,566	12,566
Cash, cash equivalents and restricted cash at end of period		179,712	297,395	352,519
Total cash, cash equivalents and restricted cash		179,712	297,395	352,519
Supplemental disclosure of cash flow information - cash paid for income taxes		975	578	939
Supplemental disclosures of non-cash investing and financing activities:
Purchases of property and equipment included in accounts payable and accrued liabilities		474	13,814	9,261
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)		1,833	(5,589)	26,529
Right-of-use assets obtained in exchange for lease obligations arising from lease modifications		0	3,093	1,572
Unpaid liabilities related to intangible purchases		0	1,500	2,500
Receivable from exercise of stock options included in prepaid expenses, other current assets and other assets		3	61	29
Vesting of early exercised stock options		$ 507	$ 1,006	$ 2,746

[1] Including changes in related party balances of $12,444, $38,772 and $20,668 for the fiscal years ended April 30, 2024, 2023 and 2022, respectively.

[2] Including changes in related party balances of $(810), $(4,741) and $12,739 for the fiscal years ended April 30, 2024, 2023 and 2022, respectively.

[3] Including changes in related party balances of $248, $(16,349) and $18,493 for the fiscal years ended April 30, 2024, 2023 and 2022, respectively.

[4] Including changes in related party balances of $(2,448), $(2,510) and $(3,350) for the fiscal years ended April 30, 2024, 2023 and 2022, respectively.

[5] Including changes in related party balances of $(46), $117 and $(7,565) for the fiscal years ended April 30, 2024, 2023 and 2022, respectively.