Employee Retirement and Deferred Compensation Plans (Details) - USD ($) $ in Thousands	12 Months Ended
	Oct. 31, 2019	Oct. 31, 2018	Oct. 31, 2017	Oct. 31, 2015	Oct. 31, 2019	Oct. 31, 2018	Oct. 31, 2017
Projected benefit obligation [Roll Forward]
Plan amendments adopted during year	$ 4,956
Defined Benefit Plan, Benefit Obligation, Period Increase (Decrease)	4,138	(3,115)	$ (1,201)
Unamortized Prior Service Cost [Roll Forward]
Plan amendments adopted during year	4,956
Supplemental Employee Retirement Plan [Member]
Plan costs
Service cost	403	568	619
Interest cost	1,416	1,198	1,142
Amortization of prior service obligation	506	936	969
Amortization of unrecognized losses	0	17	137
Total costs	2,325	2,719	2,867
Projected benefit obligation [Roll Forward]
Projected Benefit Obligation, beginning of year	35,515	38,222	38,980
Plan amendments adopted during year	4,956
Service cost	403	568	619
Interest cost	1,416	1,198	1,142
Defined Benefit Plan, Benefit Obligation, Benefits Paid	(1,358)	(1,358)	(1,318)
Defined Benefit Plan, Benefit Obligation, Period Increase (Decrease)	4,138	(3,115)	(1,201)
Projected Benefit Obligation, end of year	45,070	35,515	38,222
Unamortized Prior Service Cost [Roll Forward]
Unamorized Prior Service Cost, beginning of year	870	1,806	2,775
Plan amendments adopted during year	4,956
Amortization of prior service cost					$ (506)	$ (936)	$ (969)
Unamorized Prior Service Cost, end of year	5,320	870	1,806
Accumulated unrecognized loss					(2,567)	1,571	(1,560)
Accumulated Benefit Obligation					45,070	35,515	38,222
Accrued Benefit Obligation	$ 35,515	$ 38,222	$ 38,222		45,070	$ 35,515	$ 38,222
Defined Benefit Plan, Expected Future Benefit Payment [Abstract]
Defined Benefit Plan, Estimated Future Employer Contributions in Next Fiscal Year					1,687
Defined Benefit Plan, Expected Future Benefit Payment, Year Two					2,526
Defined Benefit Plan, Expected Future Benefit Payment, Year Three					2,785
Defined Benefit Plan, Expected Future Benefit Payment, Year Four					3,046
Defined Benefit Plan, Expected Future Benefit Payment, Year Five					3,077
Defined Benefit Plan, Expected Future Benefit Payment, Five Fiscal Years Thereafter					$ 16,878