Employee Retirement and Deferred Compensation Plans (Details) - USD ($) $ in Thousands	12 Months Ended
	Oct. 31, 2016	Oct. 31, 2015	Oct. 31, 2014	Oct. 31, 2016	Oct. 31, 2015	Oct. 31, 2014
Projected benefit obligation [Roll Forward]
Plan amendments adopted during year	$ 757	$ 768	$ 511
Defined Benefit Plan, Benefit Obligation, Period Increase (Decrease)	1,699	(382)	1,183
Unamortized Prior Service Cost [Roll Forward]
Plan amendments adopted during year	757	768	511
Supplemental Employee Retirement Plan [Member]
Plan costs
Service cost	562	579	470
Interest cost	1,276	1,232	1,277
Amortization of prior service obligation	947	806	662
Amortization of unrecognized losses	42	81	8
Total costs	2,827	2,698	2,417
Projected benefit obligation [Roll Forward]
Projected Benefit Obligation, beginning of year	35,815	34,606	32,136
Plan amendments adopted during year	757	768	511
Service cost	562	579	470
Interest cost	1,276	1,232	1,277
Benefits paid	(1,129)	(988)	(971)
Defined Benefit Plan, Benefit Obligation, Period Increase (Decrease)	1,699	(382)	1,183
Projected Benefit Obligation, end of year	38,980	35,815	34,606
Unamortized Prior Service Cost [Roll Forward]
Unamorized Prior Service Cost, beginning of year	2,965	3,003	3,154
Plan amendments adopted during year	757	768	511
Amortization of prior service cost	(947)	(806)	(662)
Unamorized Prior Service Cost, end of year	2,775	2,965	3,003
Accumulated unrecognized loss				$ 2,898	$ 1,240	$ 1,703
Accumulated Benefit Obligation				38,980	35,815	34,606
Accrued Benefit Obligation	35,815	$ 34,606	$ 32,136	38,980	$ 35,815	$ 34,606
Defined Benefit Plan, Expected Future Benefit Payments, Fiscal Year Maturity [Abstract]
Defined Benefit Plan, Estimated Future Employer Contributions in Next Fiscal Year	$ 1,326
Defined Benefit Plan, Expected Future Benefit Payments, Year Two				2,124
Defined Benefit Plan, Expected Future Benefit Payments, Year Three				2,503
Defined Benefit Plan, Expected Future Benefit Payments, Year Four				2,611
Defined Benefit Plan, Expected Future Benefit Payments, Year Five				2,702
Defined Benefit Plan, Expected Future Benefit Payments, Five Fiscal Years Thereafter				$ 15,290