Components of Net Periodic Benefit Cost of Defined Benefit Plans and Postretirement Benefit Plans (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Jan. 31, 2014	Jan. 31, 2013
Defined Benefit Plans
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Interest	$ 120	$ 100
Expected return on assets	(118)	(103)
Amortization of actuarial loss	28	34
Net expense	30	31
Postretirement Benefit Plans
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Interest	57	51
Service cost	3	3
Settlement loss recognized	0	27
Amortization of actuarial loss	(2)	1
Net expense	$ 58	$ 82