Marketable securities - Schedule of Marketable Securities (Details)	Oct. 31, 2024 USD ($)
Marketable Securities [Line Items]
Amortized Cost	$ 229,570
Unrealized Holdings Gains	15
Unrealized Holdings Losses	(418)
Aggregate Fair Value	229,167
Cash Equivalents and Short-term Investments
Marketable Securities [Line Items]
Amortized Cost	169,667
Unrealized Holdings Gains	15
Unrealized Holdings Losses	(38)
Aggregate Fair Value	169,644
Cash Equivalents and Short-term Investments \| Money Market Funds
Marketable Securities [Line Items]
Amortized Cost	121
Aggregate Fair Value	121
Cash Equivalents and Short-term Investments \| US Treasury
Marketable Securities [Line Items]
Amortized Cost	145,832
Unrealized Holdings Gains	12
Unrealized Holdings Losses	(30)
Aggregate Fair Value	145,814
Cash Equivalents and Short-term Investments \| Government Agency Securities
Marketable Securities [Line Items]
Amortized Cost	23,714
Unrealized Holdings Gains	3
Unrealized Holdings Losses	(8)
Aggregate Fair Value	23,709
Long-term Investments
Marketable Securities [Line Items]
Amortized Cost	59,903
Unrealized Holdings Losses	(380)
Aggregate Fair Value	59,523
Long-term Investments \| US Treasury
Marketable Securities [Line Items]
Amortized Cost	49,931
Unrealized Holdings Losses	(306)
Aggregate Fair Value	49,625
Long-term Investments \| Government Agency Securities
Marketable Securities [Line Items]
Amortized Cost	9,972
Unrealized Holdings Losses	(74)
Aggregate Fair Value	$ 9,898

Amount, before tax, of unrealized gain in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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