EQUIPMENT, BUILDING, FURNITURE AND FIXTURES (Details) $ in Thousands	3 Months Ended
	Jan. 31, 2016 USD ($)	Jan. 31, 2015 USD ($)	Oct. 31, 2015 USD ($)	Apr. 15, 2015 building CAD / ft²
Property, Plant and Equipment, Net [Abstract]
Equipment, furniture and fixtures, gross	$ 496,379		$ 486,253
Accumulated depreciation and amortization	(296,818)		(294,280)
Equipment, furniture and fixtures, net	199,561		191,973
Equipment, furniture and fixtures (Textuals) [Abstract]
Depreciation of equipment, building, furniture and fixtures, and amortization of leasehold improvements	14,449	$ 13,772
Equipment, furniture and fixtures
Property, Plant and Equipment, Net [Abstract]
Equipment, furniture and fixtures, gross	404,844		404,935
Building subject to capital lease
Property, Plant and Equipment, Net [Abstract]
Equipment, furniture and fixtures, gross	12,598		13,459
Construction in progress subject to build-to-suit lease
Property, Plant and Equipment, Net [Abstract]
Equipment, furniture and fixtures, gross	28,989		18,663
Equipment, furniture and fixtures (Textuals) [Abstract]
Newly constructed assets to be leased | building				2
Maximum landlord contribution per rentable square feet | CAD / ft²				290.00
Leasehold improvements
Property, Plant and Equipment, Net [Abstract]
Equipment, furniture and fixtures, gross	49,948		$ 49,196
Equipment Furniture Fixtures And Leasehold Improvements
Equipment, furniture and fixtures (Textuals) [Abstract]
Depreciation of equipment, building, furniture and fixtures, and amortization of leasehold improvements	$ 11,900	$ 11,300