Financial Assets and Liabilities - Cash Equivalents and Short-Term Investments (Details) - USD ($) $ in Thousands	Jul. 31, 2024	Oct. 31, 2023
Cash Equivalents and Short-term Investments [Line Items]
Total	$ 153,754	$ 152,725
Gross Unrealized Gains	753	34
Gross Unrealized Losses Less Than 12 Continuous Months	(15)	(609)
Gross Unrealized Losses 12 Continuous Months or Longer	(61)	(511)
Estimated fair value	154,431	151,639
Cash equivalents
Cash Equivalents and Short-term Investments [Line Items]
Total	51,982	13,123
Gross Unrealized Gains	1	0
Gross Unrealized Losses Less Than 12 Continuous Months	0	0
Gross Unrealized Losses 12 Continuous Months or Longer	0	0
Estimated fair value	51,983	13,123
Cash equivalents | Money market funds
Cash Equivalents and Short-term Investments [Line Items]
Total	44,537	10,129
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	44,537	10,129
Cash equivalents | U.S. Treasury, agency & T-bills
Cash Equivalents and Short-term Investments [Line Items]
Total	7,445	2,994
Gross Unrealized Gains	1	0
Gross Unrealized Losses Less Than 12 Continuous Months	0	0
Gross Unrealized Losses 12 Continuous Months or Longer	0	0
Estimated fair value	7,446	2,994
Short-term Investments | U.S. Treasury, agency & T-bills
Cash Equivalents and Short-term Investments [Line Items]
Total	18,250	15,752
Gross Unrealized Gains	61	0
Gross Unrealized Losses Less Than 12 Continuous Months	0	(61)
Gross Unrealized Losses 12 Continuous Months or Longer	(9)	(2)
Estimated fair value	18,302	15,689
Short-term Investments | Municipal bonds
Cash Equivalents and Short-term Investments [Line Items]
Total		515
Gross Unrealized Gains		0
Gross Unrealized Losses Less Than 12 Continuous Months		0
Gross Unrealized Losses 12 Continuous Months or Longer		(16)
Estimated fair value		499
Short-term Investments | Corporate debt securities
Cash Equivalents and Short-term Investments [Line Items]
Total	104,267	103,213
Gross Unrealized Gains	528	13
Gross Unrealized Losses Less Than 12 Continuous Months	(13)	(455)
Gross Unrealized Losses 12 Continuous Months or Longer	(24)	(396)
Estimated fair value	104,758	102,375
Short-term Investments | Asset-backed securities
Cash Equivalents and Short-term Investments [Line Items]
Total	31,237	33,245
Gross Unrealized Gains	164	21
Gross Unrealized Losses Less Than 12 Continuous Months	(2)	(93)
Gross Unrealized Losses 12 Continuous Months or Longer	(28)	(97)
Estimated fair value	$ 31,371	$ 33,076