CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands		9 Months Ended
		Jan. 31, 2022	Jan. 31, 2021
Cash flows from operating activities:
Net loss		$ (133,645)	$ (31,646)
Adjustments to reconcile net loss to net cash used in operating activities
Depreciation and amortization		3,761	3,189
Non-cash operating lease cost		2,369	2,474
Stock-based compensation expense		77,813	14,270
Other		255	(115)
Changes in operating assets and liabilities
Accounts receivable	[1]	(1,963)	588
Prepaid expenses, other current assets and other assets	[2]	(21,108)	(6,931)
Accounts payable	[3]	2,237	7,447
Accrued compensation and employee benefits		759	4,303
Operating lease liabilities		(2,303)	(2,636)
Other liabilities	[4]	14,304	1,213
Deferred revenue	[5]	(15,779)	2,016
Net cash used in operating activities		(73,300)	(5,828)
Cash flows from investing activities:
Purchases of property and equipment		(2,183)	(1,166)
Capitalized software development costs		(500)	0
Proceeds from sale of non-marketable equity security		0	725
Purchases of investments		(540,290)	(232,287)
Maturities and sales of investments		698,312	280,997
Net cash provided by investing activities		155,339	48,269
Cash flows from financing activities:
Proceeds from initial public offering and private placements, net of underwriting discounts		0	851,859
Proceeds from repayment of shareholder loan		0	26,003
Payment of deferred offering costs		(105)	(6,710)
Proceeds from exercise of Class A common stock options		19,334	13,825
Net cash provided by financing activities		19,229	884,977
Net increase in cash, cash equivalents and restricted cash		101,268	927,418
Cash, cash equivalents and restricted cash at beginning of period		116,255	33,604
Cash and cash equivalents		204,531	960,122
Restricted cash included in other assets		12,992	900
Cash, cash equivalents and restricted cash at end of period		217,523	961,022
Total cash, cash equivalents and restricted cash		217,523	961,022
Supplemental disclosure of cash flow information—cash paid for income taxes		677	435
Supplemental disclosures of non-cash investing and financing activities:
Purchases of property and equipment included in accounts payable and accrued liabilities		483	349
Right-of-use assets obtained in exchange for lease obligations		26,529	0
Unpaid liabilities related to intangible purchases		2,500	0
Receivable from exercise of stock options included in prepaid expenses, other current assets and other assets		45	0
Deferred offering costs included in accounts payable and accrued liabilities		0	503
Vesting of early exercised stock options		$ 2,391	$ 2,073

[1] Including changes in related party balances of $547 and $(780) for the nine months ended January 31, 2022 and 2021, respectively.

[2] Including changes in related party balances of $14,102 and nil for the nine months ended January 31, 2022 and 2021, respectively.

[3] Including changes in related party balances of $2,359 and nil for the nine months ended January 31, 2022 and 2021, respectively.

[4] Including changes in related party balances of $12,674 and nil for the nine months ended January 31, 2022 and 2021, respectively.

[5] Including changes in related party balances of $(7,122) and $7,859 for the nine months ended January 31, 2022 and 2021, respectively.