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BALANCE SHEET COMPONENTS: Property and equipment (Details) - USD ($)
$ in Thousands
Nov. 30, 2015
Nov. 30, 2014
Property, Plant and Equipment [Line Items]    
Property and Equipment, Gross $ 449,053 $ 365,520
Accumulated Depreciation (200,426) (164,717)
Property and equipment, net 248,627 200,803
Land [Member]    
Property, Plant and Equipment [Line Items]    
Property and Equipment, Gross 21,581 22,402
Equipment, Computers and Software [Member]    
Property, Plant and Equipment [Line Items]    
Property and Equipment, Gross 202,310 157,931
Furniture and Fixtures [Member]    
Property, Plant and Equipment [Line Items]    
Property and Equipment, Gross 45,470 38,113
Building, Building Improvements and Leasehold improvements[Member]    
Property, Plant and Equipment [Line Items]    
Property and Equipment, Gross 167,893 134,291
Construction in Progress [Member]    
Property, Plant and Equipment [Line Items]    
Property and Equipment, Gross $ 11,799 $ 12,783