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
	Jan. 31, 2013	Jan. 31, 2012
Defined Benefit Plans
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Service cost		$ 12
Interest	100	124
Expected return on assets	(103)	(122)
Amortization of actuarial loss	34	24
Net expense	31	38
Post-Retirement Benefit Plans
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Service cost	3	3
Interest	51	62
Settlements	27
Amortization of actuarial loss	1
Net expense	$ 82	$ 65