Equipment, Building, Furniture and Fixtures (Details) $ in Thousands	9 Months Ended
	Jul. 31, 2015 USD ($)	Jul. 31, 2014 USD ($)	Apr. 15, 2015 building CAD / ft²	Oct. 31, 2014 USD ($)
Property, Plant and Equipment, Net [Abstract]
Equipment, furniture and fixtures, gross	$ 452,579			$ 429,413
Accumulated depreciation and amortization	(292,987)			(302,781)
Equipment, furniture and fixtures, net	159,592			126,632
Equipment, furniture and fixtures (Textuals) [Abstract]
Depreciation of equipment, building, furniture and fixtures, and amortization of leasehold improvements	41,601	$ 41,463
Equipment Furniture Fixtures And Leasehold Improvements [Member]
Equipment, furniture and fixtures (Textuals) [Abstract]
Depreciation of equipment, building, furniture and fixtures, and amortization of leasehold improvements	34,300	$ 34,800
Equipment, Furniture and Fixtures
Property, Plant and Equipment, Net [Abstract]
Equipment, furniture and fixtures, gross	382,850			383,059
Building Subject to Capital Lease
Property, Plant and Equipment, Net [Abstract]
Equipment, furniture and fixtures, gross	13,939			0
Construction in Progress
Property, Plant and Equipment, Net [Abstract]
Equipment, furniture and fixtures, gross	8,770			0
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	$ 47,020			$ 46,354