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Summary of Significant Accounting Policies - Summary of the Changes in Other Comprehensive (Loss) Income by Component (Details) - Accumulated Other Comprehensive Income - USD ($) $ in Thousands	12 Months Ended
	Oct. 31, 2021	Oct. 31, 2020	Oct. 31, 2019
Pre-tax Amount
Foreign currency translation adjustments	$ (685)	$ (707)	$ (1,103)
Minimum pension liability adjustments:
Other comprehensive gain (loss) before reclassifications	3,440	205	(859)
Available-for-sale securities:
Amounts reclassified to earnings included in "Selling, general and administrative"	0	0	0
Other comprehensive income (loss)	2,755	(502)	(1,962)
Tax (Expense) Benefit
Foreign currency translation adjustments	0	0	0
Minimum pension liability adjustments:
Other comprehensive gain (loss) before reclassifications	(940)	69	252
Available-for-sale securities:
Amounts reclassified to earnings included in "Selling, general and administrative"	0	140	0
Other comprehensive income (loss)	(940)	209	252
Net Amount
Foreign currency translation adjustments	(685)	(707)	(1,103)
Minimum pension liability adjustments:
Other comprehensive gain (loss) before reclassifications	2,500	274	(607)
Available-for-sale securities:
Amounts reclassified to earnings included in "Selling, general and administrative"	0	140	0
Other comprehensive (loss) income	$ 1,815	$ (293)	$ (1,710)

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