v3.5.0.2
DERIVATIVE INSTRUMENTS: (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Aug. 31, 2016
Aug. 31, 2015
Aug. 31, 2016
Aug. 31, 2015
Nov. 30, 2015
May 31, 2015
Derivative, Fair Value, Net [Abstract]            
Derivative instrument, subsequent period for de-recognition     2 months      
Decrease in derivative asset and liability, offsetting $ 1,506   $ 1,506   $ 1,168  
Foreign Exchange Forward Contracts [Member]            
Derivative, Fair Value, Net [Abstract]            
Derivative, notional amount 256,876   $ 256,876   251,677  
Foreign Exchange Forward Contracts [Member] | Maximum [Member]            
Derivative, Fair Value, Net [Abstract]            
Foreign exchange forward contracts, maturity     6 months      
Foreign Exchange Forward Contracts [Member] | Other Income (Expense), net [Member]            
Derivative, Fair Value, Net [Abstract]            
Derivative instruments not designated as hedging instruments, gains (losses), net (1,668) $ 3,518 $ (6,126) $ 15,252    
Interest Rate Swap [Member]            
Derivative, Fair Value, Net [Abstract]            
Derivative, notional amount           $ 400,000
Derivative instrument, hedging ineffectiveness 0 0 0 0    
Derivative instruments, gains (losses) reclassified into earnings 0 0 0 0    
Derivative instrument, gains (losses) to be reclassified to earnings within 12 months     0      
Interest Rate Swap [Member] | Other Comprehensive Income (Loss) [Member]            
Derivative, Fair Value, Net [Abstract]            
Derivative Instruments, losses recognized in Other Comprehensive Income 1,857 $ 1,050 8,120 $ 2,937    
Not Designated as Hedging Instrument [Member] | Foreign Exchange Forward Contracts [Member] | Other Current Assets [Member]            
Derivative, Fair Value, Net [Abstract]            
Foreign exchange forward contract asset at fair value 1,939   1,939   1,753  
Not Designated as Hedging Instrument [Member] | Foreign Exchange Forward Contracts [Member] | Other accrued Liabilities [Member]            
Derivative, Fair Value, Net [Abstract]            
Foreign exchange forward contract liability at fair value 1,085   1,085   466  
Designated as Hedging Instrument [Member] | Interest Rate Swap [Member] | Other Current Assets [Member]            
Derivative, Fair Value, Net [Abstract]            
Interest rate cash flow hedge asset at fair value 0   0   19  
Designated as Hedging Instrument [Member] | Interest Rate Swap [Member] | Other accrued Liabilities [Member]            
Derivative, Fair Value, Net [Abstract]            
Interest rate cash flow hedge liability at fair value 1,252   1,252   0  
Designated as Hedging Instrument [Member] | Interest Rate Swap [Member] | Other Long-term Liabilities [Member]            
Derivative, Fair Value, Net [Abstract]            
Interest rate cash flow hedge liability at fair value $ 12,657   $ 12,657   $ 5,808