Components of Net Periodic Benefit Cost of Defined Benefit Plans and Post-Retirement Benefit Plans (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Jul. 31, 2013	Jul. 31, 2012	Jul. 31, 2013	Jul. 31, 2012
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Amortization of actuarial loss	$ 34	$ 24	$ 104	$ 73
Settlement loss recognized	6		70
Defined Benefit Plans
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Service cost		12		36
Interest	99	124	299	372
Expected return on assets	(102)	(122)	(308)	(365)
Amortization of actuarial loss	33	24	101	73
Settlement loss recognized	6		43
Net expense	36	38	135	116
Post-Retirement Benefit Plans
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Service cost	4	3	10	9
Interest	50	62	152	185
Amortization of actuarial loss	1		3
Settlement loss recognized			27
Net expense	$ 55	$ 65	$ 192	$ 194