Accumulated Other Comprehensive (Loss) Income (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Apr. 30, 2014	Apr. 30, 2013	Apr. 30, 2014	Apr. 30, 2013
Accumulated Other Comprehensive (Loss) Income [Line Items]
Accumulated Other Comprehensive Income (Loss), Net of Tax	$ (2,124)	$ (4,803)	$ (2,387)	$ (4,819)
Other comprehensive (loss) income before reclassifications	(28)	(194)	259	(424)
Reclassification From Accumulated Other Comprehensive Income Current Period Before Tax	179	110	322	357
Other Comprehensive Income (Loss), Tax, Portion Attributable to Parent	(57)	26	(224)	25
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent	94	(58)	357	(42)
Accumulated Other Comprehensive Income (Loss), Net of Tax	(2,030)	(4,861)	(2,030)	(4,861)
Supplemental Employee Retirement Plans, Defined Benefit [Member]
Accumulated Other Comprehensive (Loss) Income [Line Items]
Accumulated Other Comprehensive Income (Loss), Net of Tax	(2,059)	(4,619)	(2,112)	(4,446)
Other comprehensive (loss) income before reclassifications		0	(77)	(519)
Reclassification From Accumulated Other Comprehensive Income Current Period Before Tax	164	247	328	494
Other Comprehensive Income (Loss), Tax, Portion Attributable to Parent	(61)	(92)	(95)	7
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent	103	155	156	(18)
Accumulated Other Comprehensive Income (Loss), Net of Tax	(1,956)	(4,464)	(1,956)	(4,464)
Available-for-sale Securities [Member]
Accumulated Other Comprehensive (Loss) Income [Line Items]
Accumulated Other Comprehensive Income (Loss), Net of Tax	(36)	276	(5)	180
Other comprehensive (loss) income before reclassifications		(67)	(29)	71
Reclassification From Accumulated Other Comprehensive Income Current Period Before Tax	15	(137)	(6)	(137)
Other Comprehensive Income (Loss), Tax, Portion Attributable to Parent	(6)	71	13	29
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent	9	(133)	(22)	(37)
Accumulated Other Comprehensive Income (Loss), Net of Tax	(27)	143	(27)	143
Derivative [Member]
Accumulated Other Comprehensive (Loss) Income [Line Items]
Accumulated Other Comprehensive Income (Loss), Net of Tax	(29)	(460)	(270)	(553)
Other comprehensive (loss) income before reclassifications	(28)	(127)	365	24
Reclassification From Accumulated Other Comprehensive Income Current Period Before Tax		0		0
Other Comprehensive Income (Loss), Tax, Portion Attributable to Parent	10	47	(142)	(11)
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent	(18)	(80)	223	13
Accumulated Other Comprehensive Income (Loss), Net of Tax	$ (47)	$ (540)	$ (47)	$ (540)