Accumulated Other Comprehensive (Loss) Income (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended	9 Months Ended
	Jul. 31, 2013	Jul. 31, 2013	Apr. 30, 2013	Oct. 31, 2012
Accumulated Other Comprehensive (Loss) Income [Line Items]
Accumulated Other Comprehensive Income (Loss), Net of Tax	$ (4,630)	$ (4,630)	$ (4,861)	$ (4,819)
Other comprehensive (loss) income before reclassifications	(37)	(461)
Reclassification From Accumulated Other Comprehensive Income Current Period Before Tax	399	756
Other Comprehensive Income (Loss), Tax, Portion Attributable to Parent	(131)	(106)
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent	231	189
Supplemental Employee Retirement Plans, Defined Benefit [Member]
Accumulated Other Comprehensive (Loss) Income [Line Items]
Accumulated Other Comprehensive Income (Loss), Net of Tax	(4,501)	(4,501)	(4,464)	(4,446)
Other comprehensive (loss) income before reclassifications	(307)	(826)
Reclassification From Accumulated Other Comprehensive Income Current Period Before Tax	247	741
Other Comprehensive Income (Loss), Tax, Portion Attributable to Parent	23	30
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent	(37)	(55)
Available-for-sale Securities [Member]
Accumulated Other Comprehensive (Loss) Income [Line Items]
Accumulated Other Comprehensive Income (Loss), Net of Tax	73	73	143	180
Other comprehensive (loss) income before reclassifications	(262)	(191)
Reclassification From Accumulated Other Comprehensive Income Current Period Before Tax	152	15
Other Comprehensive Income (Loss), Tax, Portion Attributable to Parent	40	69
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent	(70)	(107)
Derivative [Member]
Accumulated Other Comprehensive (Loss) Income [Line Items]
Accumulated Other Comprehensive Income (Loss), Net of Tax	(202)	(202)	(540)	(553)
Other comprehensive (loss) income before reclassifications	532	556
Reclassification From Accumulated Other Comprehensive Income Current Period Before Tax
Other Comprehensive Income (Loss), Tax, Portion Attributable to Parent	(194)	(205)
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent	$ 338	$ 351