Marketable Securities - Schedule of Marketable Securities (Details) - USD ($) $ in Thousands	Apr. 30, 2025	Oct. 31, 2024
Marketable Securities [Line Items]
Amortized Cost	$ 229,304	$ 229,570
Unrealized Holdings Gains	161	15
Unrealized Holdings Losses	(114)	(418)
Aggregate Fair Value	229,351	229,167
Cash Equivalents and Short Term Investments
Marketable Securities [Line Items]
Amortized Cost	195,205	169,667
Unrealized Holdings Gains	93	15
Unrealized Holdings Losses	(56)	(38)
Aggregate Fair Value	195,242	169,644
Cash Equivalents and Short Term Investments \| Money Market Funds
Marketable Securities [Line Items]
Amortized Cost	22,719	121
Aggregate Fair Value	22,719	121
Cash Equivalents and Short Term Investments \| US Treasury
Marketable Securities [Line Items]
Amortized Cost	149,764	145,832
Unrealized Holdings Gains	91	12
Unrealized Holdings Losses	(47)	(30)
Aggregate Fair Value	149,808	145,814
Cash Equivalents and Short Term Investments \| Government Agency Securities
Marketable Securities [Line Items]
Amortized Cost	22,722	23,714
Unrealized Holdings Gains	2	3
Unrealized Holdings Losses	(9)	(8)
Aggregate Fair Value	22,715	23,709
Long- term Investments
Marketable Securities [Line Items]
Amortized Cost	34,099	59,903
Unrealized Holdings Gains	68
Unrealized Holdings Losses	(58)	(380)
Aggregate Fair Value	34,109	59,523
Long- term Investments \| US Treasury
Marketable Securities [Line Items]
Amortized Cost	29,080	49,931
Unrealized Holdings Gains	68
Unrealized Holdings Losses	(31)	(306)
Aggregate Fair Value	29,117	49,625
Long- term Investments \| Government Agency Securities
Marketable Securities [Line Items]
Amortized Cost	5,019	9,972
Unrealized Holdings Losses	(27)	(74)
Aggregate Fair Value	$ 4,992	$ 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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