EQUIPMENT, BUILDING, FURNITURE AND FIXTURES (Details) $ in Thousands	3 Months Ended
	Jan. 31, 2017 USD ($)	Jan. 31, 2016 USD ($)	Oct. 31, 2016 USD ($)	Apr. 15, 2015 building CAD / ft²
Property, Plant and Equipment, Net [Abstract]
Buildings, equipment, furniture and fixtures, gross	$ 605,113		$ 591,171
Accumulated depreciation and amortization	(311,963)		(302,765)
Buildings, equipment, furniture and fixtures, net	293,150		288,406
Equipment, furniture and fixtures (Textuals) [Abstract]
Depreciation of equipment, building, furniture and fixtures, and amortization of leasehold improvements	16,699	$ 14,449
Equipment, furniture and fixtures
Property, Plant and Equipment, Net [Abstract]
Buildings, equipment, furniture and fixtures, gross	461,146		451,029
Building subject to capital lease
Property, Plant and Equipment, Net [Abstract]
Buildings, equipment, furniture and fixtures, gross	22,947		22,529
Construction in progress subject to build-to-suit lease
Property, Plant and Equipment, Net [Abstract]
Buildings, equipment, furniture and fixtures, gross	58,671		57,602
Equipment, furniture and fixtures (Textuals) [Abstract]
Number of buildings to be leased | building				2
Maximum landlord contribution per rentable square feet | CAD / ft²				290.00
Leasehold improvements
Property, Plant and Equipment, Net [Abstract]
Buildings, equipment, furniture and fixtures, gross	62,349		$ 60,011
Equipment furniture fixtures and leasehold improvements
Equipment, furniture and fixtures (Textuals) [Abstract]
Depreciation of equipment, building, furniture and fixtures, and amortization of leasehold improvements	$ 14,300	$ 11,900