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Financial Assets and Liabilities - Schedule of Cash Equivalents and Short-Term Investments (Details) - USD ($) $ in Thousands | Jan. 31, 2025 | Oct. 31, 2024
--- | --- | ---
Cash Equivalents and Short-term Investments [Line Items] |  |
Total | $ 155,160 | $ 153,496
Gross Unrealized Gains | 447 | 523
Gross Unrealized Losses Less Than 12 Continuous Months | (103) | (128)
Gross Unrealized Losses 12 Continuous Months or Longer | (15) | (22)
Estimated fair value | 155,489 | 153,869
Cash equivalents |  |
Cash Equivalents and Short-term Investments [Line Items] |  |
Total | 683,052 | 877,956
Gross Unrealized Gains | 2 | 1
Gross Unrealized Losses Less Than 12 Continuous Months | 0 | 0
Gross Unrealized Losses 12 Continuous Months or Longer | 0 | 0
Estimated fair value | 683,054 | 877,957
Cash equivalents | Money market funds |  |
Cash Equivalents and Short-term Investments [Line Items] |  |
Total | 672,567 | 869,972
Gross Unrealized Gains | 0 | 0
Gross Unrealized Losses Less Than 12 Continuous Months | 0 | 0
Gross Unrealized Losses 12 Continuous Months or Longer | 0 | 0
Estimated fair value | 672,567 | 869,972
Cash equivalents | U.S. Treasury, agency & T-bills |  |
Cash Equivalents and Short-term Investments [Line Items] |  |
Total | 10,485 | 7,984
Gross Unrealized Gains | 2 | 1
Gross Unrealized Losses Less Than 12 Continuous Months | 0 | 0
Gross Unrealized Losses 12 Continuous Months or Longer | 0 | 0
Estimated fair value | 10,487 | 7,985
Short-term Investments | U.S. Treasury, agency & T-bills |  |
Cash Equivalents and Short-term Investments [Line Items] |  |
Total | 18,354 | 19,411
Gross Unrealized Gains | 21 | 44
Gross Unrealized Losses Less Than 12 Continuous Months | (4) | (6)
Gross Unrealized Losses 12 Continuous Months or Longer | 0 | 0
Estimated fair value | 18,371 | 19,449
Short-term Investments | Corporate debt securities |  |
Cash Equivalents and Short-term Investments [Line Items] |  |
Total | 109,596 | 105,024
Gross Unrealized Gains | 314 | 349
Gross Unrealized Losses Less Than 12 Continuous Months | (96) | (115)
Gross Unrealized Losses 12 Continuous Months or Longer | 0 | (2)
Estimated fair value | 109,814 | 105,256
Short-term Investments | Asset-backed securities |  |
Cash Equivalents and Short-term Investments [Line Items] |  |
Total | 27,210 | 29,061
Gross Unrealized Gains | 112 | 130
Gross Unrealized Losses Less Than 12 Continuous Months | (3) | (7)
Gross Unrealized Losses 12 Continuous Months or Longer | (15) | (20)
Estimated fair value | $ 27,304 | $ 29,164

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