CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands		6 Months Ended
		Oct. 31, 2021	Oct. 31, 2020
Cash flows from operating activities:
Net loss		$ (94,198)	$ (14,794)
Adjustments to reconcile net loss to net cash (used in) provided by operating activities
Depreciation and amortization		2,364	2,098
Non-cash operating lease cost		1,100	1,650
Stock-based compensation expense		46,452	7,681
Other		(538)	(75)
Changes in operating assets and liabilities
Accounts receivable	[1]	39,047	(2,380)
Prepaid expenses, other current assets and other assets	[2]	(15,074)	(48)
Accounts payable	[3]	(1,682)	3,159
Accrued compensation and employee benefits		(5,351)	(716)
Operating lease liabilities		(1,214)	(1,745)
Other liabilities	[4]	13,564	2,345
Deferred revenue	[5]	(2,346)	21,661
Net cash (used in) provided by operating activities		(17,876)	18,836
Cash flows from investing activities:
Purchases of property and equipment		(1,429)	(919)
Capitalized software development costs		(500)	0
Purchases of investments		(388,870)	(128,330)
Maturities and sales of investments		461,648	164,098
Net cash provided by investing activities		70,849	34,849
Cash flows from financing activities:
Proceeds from repayment of shareholder loan		0	26,003
Payment of deferred offering costs		(105)	(2,325)
Proceeds from exercise of Class A common stock options		11,305	4,536
Net cash provided by financing activities		11,200	28,214
Net increase in cash, cash equivalents and restricted cash		64,173	81,899
Cash, cash equivalents and restricted cash at beginning of period		116,255	33,604
Cash and cash equivalents		167,436	114,603
Restricted cash included in other assets		12,992	900
Cash, cash equivalents and restricted cash at end of period		180,428	115,503
Total cash, cash equivalents and restricted cash		180,428	115,503
Supplemental disclosure of cash flow information—cash paid for income taxes		625	323
Supplemental disclosures of non-cash investing and financing activities:
Purchases of property and equipment included in accounts payable and accrued liabilities		52	146
Unpaid liabilities related to intangible purchases		2,500	0
Deferred offering costs included in accounts payable and accrued liabilities		0	2,994
Vesting of early exercised stock options		$ 1,908	$ 1,325

[1] Including changes in related party balances of $(5,796) and $(150) for the six months ended October 31, 2021 and 2020, respectively.

[2] Including changes in related party balances of $15,323 and nil for the six months ended October 31, 2021 and 2020, respectively.

[3] Including changes in related party balances of $28 and nil for the six months ended October 31, 2021 and 2020, respectively.

[4] Including changes in related party balances of $12,598 and nil for the six months ended October 31, 2021 and 2020, respectively.

[5] Including changes in related party balances of $9,819 and $14,780 for the six ended October 31, 2021 and 2020, respectively.