For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

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Amount before tax of foreign currency transaction realized and unrealized gain (loss) recognized in the income statement.

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Long-lived assets other than financial instruments, long-term customer relationships of a financial institution, mortgage and other servicing rights, deferred policy acquisition costs, and deferred tax assets.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Business Segment Information Business Segment Information (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Apr. 30, 2020	Apr. 30, 2019	Apr. 30, 2020	Apr. 30, 2019	Oct. 31, 2019
Segment Reporting Information [Line Items]
Revenue, Net	$ 157,928	$ 273,370	$ 401,414	$ 532,303
Long-Lived Assets	324,752		324,752		$ 363,446
Non-US [Member] \| Reportable Geographical Components [Member]
Segment Reporting Information [Line Items]
Revenue, Net	49,896	84,464	124,863	162,755
North America
Segment Reporting Information [Line Items]
Revenue, Net	116,178	207,807	298,203	402,952
North America \| Reportable Geographical Components [Member]
Segment Reporting Information [Line Items]
Revenue, Net	113,870	201,703	292,357	392,168
Foreign Currency Transaction Gain, before Tax	(563)	(27)	(520)	211
Long-Lived Assets	236,699		236,699		268,913
Europe [Member]
Segment Reporting Information [Line Items]
Revenue, Net	39,961	68,434	96,976	133,198
Europe [Member] \| Reportable Geographical Components [Member]
Segment Reporting Information [Line Items]
Revenue, Net	39,945	68,234	96,937	132,787
Foreign Currency Transaction Gain, before Tax	565	(147)	624	(203)
Long-Lived Assets	74,740		74,740		81,532
Asia [Member]
Segment Reporting Information [Line Items]
Revenue, Net	6,316	3,433	17,407	7,348
Asia [Member] \| Reportable Geographical Components [Member]
Segment Reporting Information [Line Items]
Revenue, Net	4,113	3,433	12,120	7,348
Long-Lived Assets	13,313		13,313		$ 13,001
CHINA \| Reportable Geographical Components [Member]
Segment Reporting Information [Line Items]
Foreign Currency Transaction Gain, before Tax	$ (195)	$ 140	$ (23)	$ 197
Sales [Member] \| Non-US [Member]
Segment Reporting Information [Line Items]
Concentration Risk, Percentage	31.60%	30.90%	31.10%	30.60%