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Property, Plant, and Equipment - Summary of Property, Plant, and Equipment (Detail) (USD $)
In Thousands, unless otherwise specified
Oct. 31, 2013
Oct. 31, 2012
Property, Plant and Equipment [Line Items]    
Property plant and equipment, Gross $ 88,147 $ 84,012
Less accumulated depreciation and amortization (35,498) (33,450)
Property, Plant and Equipment, Net, Total 52,649 50,562
Land [Member]
    
Property, Plant and Equipment [Line Items]    
Property plant and equipment, Gross 7,023 7,023
Building and improvements [Member]
    
Property, Plant and Equipment [Line Items]    
Property plant and equipment, Gross 20,304 19,756
Leasehold improvements [Member]
    
Property, Plant and Equipment [Line Items]    
Property plant and equipment, Gross 1,671 1,395
Equipment [Member]
    
Property, Plant and Equipment [Line Items]    
Property plant and equipment, Gross 50,426 46,980
Information systems-hardware and software [Member]
    
Property, Plant and Equipment [Line Items]    
Property plant and equipment, Gross 7,188 8,346
Construction in progress [Member]
    
Property, Plant and Equipment [Line Items]    
Property plant and equipment, Gross $ 1,535 $ 512