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Income Taxes (Details 3) - USD ($) $ in Thousands | 12 Months Ended
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Oct. 31, 2021 | Oct. 31, 2020 | Oct. 31, 2019
Reconciliation of change in gross unrecognized tax benefits |  |  |
Balance, beginning of year | $ 6,591 | $ 7,897 | $ 12,222
Increase in benefit as a result of tax positions taken in prior years | 624 | 512 | 2,148
Increase in benefit as a result of tax positions taken in current year | 0 | 306 | 1,126
Decrease in benefit as a result of settlements | 0 | 0 | (2,670)
Decrease in benefit as a result of lapse of statute of limitations | (1,435) | (2,124) | (4,929)
Balance, end of year | $ 5,780 | $ 6,591 | $ 7,897

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- Definition Amount of unrecognized tax benefits. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 45 -Paragraph 10B -URI http://asc.fasb.org/extlink&oid=123427490&loc=SL37586934-109318 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 15A -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=121826272&loc=SL6600010-109319 + Details
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