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Employee Retirement and Deferred Compensation Plans (Details) - USD ($) $ in Thousands | 12 Months Ended |  |  |
--- | --- | --- | --- | ---
Oct. 31, 2017 | Oct. 31, 2016 | Oct. 31, 2015 | Oct. 31, 2017 | Oct. 31, 2016 | Oct. 31, 2015
Projected benefit obligation [Roll Forward] |  |  |  |  |  |
Plan amendments adopted during year |  | $ 757 | $ 768 |  |  |
Defined Benefit Plan, Benefit Obligation, Period Increase (Decrease) | (1,201) | 1,699 | (382) |  |  |
Unamortized Prior Service Cost [Roll Forward] |  |  |  |  |  |
Plan amendments adopted during year |  | 757 | 768 |  |  |
Supplemental Employee Retirement Plan [Member] |  |  |  |  |  |
Plan costs |  |  |  |  |  |
Service cost | 619 | 562 | 579 |  |  |
Interest cost | 1,142 | 1,276 | 1,232 |  |  |
Amortization of prior service obligation | 969 | 947 | 806 |  |  |
Amortization of unrecognized losses | 137 | 42 | 81 |  |  |
Total costs | 2,867 | 2,827 | 2,698 |  |  |
Projected benefit obligation [Roll Forward] |  |  |  |  |  |
Projected Benefit Obligation, beginning of year | 38,980 | 35,815 | 34,606 |  |  |
Plan amendments adopted during year |  | 757 | 768 |  |  |
Service cost | 619 | 562 | 579 |  |  |
Interest cost | 1,142 | 1,276 | 1,232 |  |  |
Defined Benefit Plan, Benefit Obligation, Benefits Paid | (1,318) | (1,129) | (988) |  |  |
Defined Benefit Plan, Benefit Obligation, Period Increase (Decrease) | (1,201) | 1,699 | (382) |  |  |
Projected Benefit Obligation, end of year | 38,222 | 38,980 | 35,815 |  |  |
Unamortized Prior Service Cost [Roll Forward] |  |  |  |  |  |
Unamorized Prior Service Cost, beginning of year | 2,775 | 2,965 | 3,003 |  |  |
Plan amendments adopted during year |  | 757 | 768 |  |  |
Amortization of prior service cost |  |  |  | $ (969) | $ (947) | $ (806)
Unamorized Prior Service Cost, end of year | 1,806 | 2,775 | 2,965 |  |  |
Accumulated unrecognized loss |  |  |  | 1,560 | 2,898 | 1,240
Accumulated Benefit Obligation |  |  |  | 38,222 | 38,980 | 35,815
Accrued Benefit Obligation | $ 38,980 | $ 35,815 | $ 34,606 | 38,222 | $ 38,980 | $ 35,815
Defined Benefit Plan, Expected Future Benefit Payment [Abstract] |  |  |  |  |  |
Defined Benefit Plan, Estimated Future Employer Contributions in Next Fiscal Year |  |  |  | 1,358 |  |
Defined Benefit Plan, Expected Future Benefit Payment, Year Two |  |  |  | 2,242 |  |
Defined Benefit Plan, Expected Future Benefit Payment, Year Three |  |  |  | 2,444 |  |
Defined Benefit Plan, Expected Future Benefit Payment, Year Four |  |  |  | 2,702 |  |
Defined Benefit Plan, Expected Future Benefit Payment, Year Five |  |  |  | 2,893 |  |
Defined Benefit Plan, Expected Future Benefit Payment, Five Fiscal Years Thereafter |  |  |  | $ 15,736 |  |

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- Definition Amount of actuarial present value of benefits attributed to employee service rendered, excluding assumptions about future compensation level. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=82843861&loc=d3e1928-114920 + Details
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- Definition Amount, before tax, of accumulated other comprehensive income (loss) for gain (loss) of defined benefit plan, that has not been recognized in net periodic benefit (cost) credit. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (j) -URI http://asc.fasb.org/extlink&oid=82843861&loc=d3e1928-114920 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14A -URI http://asc.fasb.org/extlink&oid=84228862&loc=SL7669686-108580 + Details
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- Definition Amount, before tax, of accumulated other comprehensive (income) loss for cost (credit) of benefit change attributable to participants' prior service from plan amendment or plan initiation of defined benefit plan, that has not been recognized in net periodic benefit cost (credit). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14A -URI http://asc.fasb.org/extlink&oid=84228862&loc=SL7669686-108580 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (j) -URI http://asc.fasb.org/extlink&oid=82843861&loc=d3e1928-114920 + Details
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- Definition Amount of gain (loss) recognized in net periodic benefit (cost) credit of defined benefit plan. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (h)(4) -URI http://asc.fasb.org/extlink&oid=82843861&loc=d3e1928-114920 + Details
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- Definition Amount of payment to participant of defined benefit plan which decreases benefit obligation. For pension plan, payment includes, but is not limited to, pension benefits and death benefits. For other postretirement plan, payment includes, but is not limited to, prescription drug benefits, health care benefits, life insurance benefits, and legal, educational and advisory services. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 60 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=6414203&loc=d3e39716-114964 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (a)(6) -URI http://asc.fasb.org/extlink&oid=82843861&loc=d3e1928-114920 + Details
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- Definition Amount included in accumulated other comprehensive (income) loss for prior service cost (credit) expected to be recognized in net periodic benefit cost (credit) for fiscal year following most recent annual statement of financial position. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (s) -URI http://asc.fasb.org/extlink&oid=82843861&loc=d3e1928-114920 + Details
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- Definition Amount of benefits for defined benefit plan expected to be paid in second fiscal year following latest fiscal year. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (f) -URI http://asc.fasb.org/extlink&oid=82843861&loc=d3e1928-114920 + Details
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- Definition Amount of increase (decrease) in benefit obligation of defined benefit plan from change in terms of existing plan or initiation of new plan. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (a)(7) -URI http://asc.fasb.org/extlink&oid=82843861&loc=d3e1928-114920 + Details
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