Equipment, Building, Furniture and Fixtures (Details)
$ in Thousands
12 Months Ended
Oct. 31, 2015
USD ($)
Oct. 31, 2014
USD ($)
Oct. 31, 2013
USD ($)
Apr. 15, 2015
building
CAD / ft²
Property, Plant and Equipment, Net [Abstract]        
Equipment, building, furniture and fixtures, gross $ 486,253 $ 429,413    
Accumulated depreciation and amortization (294,280) (302,781)    
Equipment, building, furniture and fixtures, net 191,973 126,632 $ 119,729  
Equipment Furniture Fixtures And Leasehold Improvements [Member]        
Equipment, furniture and fixtures (Textuals) [Abstract]        
Depreciation of equipment, furniture and fixtures, and amortization of leasehold improvements 46,100 46,600 $ 48,300  
Equipment, furniture and fixtures        
Property, Plant and Equipment, Net [Abstract]        
Equipment, building, furniture and fixtures, gross 404,935 383,059    
Building subject to capital lease        
Property, Plant and Equipment, Net [Abstract]        
Equipment, building, furniture and fixtures, gross 13,459 0    
Construction in progress, subject to build-to-suit lease        
Property, Plant and Equipment, Net [Abstract]        
Equipment, building, furniture and fixtures, gross 18,663 0    
Number of leased buildings | building       2
Maximum contribution receivable per rentable square foot | CAD / ft²       290.00
Leasehold improvements        
Property, Plant and Equipment, Net [Abstract]        
Equipment, building, furniture and fixtures, gross $ 49,196 $ 46,354