Employee Benefit Plans - Additional Information (Detail) (USD $)	12 Months Ended
	Oct. 31, 2013 RetirementPlans	Oct. 31, 2012	Oct. 31, 2011
Defined Benefit Plan Disclosure [Line Items]
Number of defined contribution retirement plans	2
Number of additional defined contribution retirement plans due to acquisition	3
Total number of defined benefit plans	5
Expenses incurred on defined contribution retirement plans	$ 807,000	$ 810,000	$ 733,000
Expenses incurred on defined benefit retirement plans	$ 12,000	$ 16,000	$ 35,000
Non-Qualified Defined Benefit Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Number of retired executives sponsored under the plan	2