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Derivatives (Details 1)
$ in Thousands
1 Months Ended 12 Months Ended
Apr. 30, 2012
USD ($)
Bank
Dec. 31, 2015
USD ($)
Dec. 31, 2014
USD ($)
Dec. 31, 2013
USD ($)
Derivative [Line Items]        
Maximum Remaining Maturity of Foreign Currency Derivatives   2 years    
Other   $ 9,850 $ (338) $ (1,472)
Derivative, Net Hedge Ineffectiveness Gain (Loss)   0 0  
Foreign Exchange Contracts [Member]        
Derivative [Line Items]        
Other   10,309    
Designated as Hedging Instrument [Member] | Cash Flow Hedging [Member]        
Derivative [Line Items]        
Derivative Instruments, Gain (Loss) Recognized in Other Comprehensive Income (Loss), Effective Portion, Net   847 (213)  
Designated as Hedging Instrument [Member] | Cash Flow Hedging [Member] | Interest Rate Contracts [Member]        
Derivative [Line Items]        
Derivative Instruments, Gain (Loss) Recognized in Other Comprehensive Income (Loss), Effective Portion, Net   (39) 48  
Designated as Hedging Instrument [Member] | Cash Flow Hedging [Member] | Foreign Exchange Contracts [Member]        
Derivative [Line Items]        
Derivative Instruments, Gain (Loss) Recognized in Other Comprehensive Income (Loss), Effective Portion, Net   886 (261)  
Not Designated as Hedging Instrument [Member] | Foreign Exchange Contracts [Member]        
Derivative [Line Items]        
Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net   $ 8,215 $ (810)  
Interest Rate Swap [Member] | Designated as Hedging Instrument [Member] | Cash Flow Hedging [Member]        
Derivative [Line Items]        
Term of Interest Rate Derivatives 5 years      
Number of Banks Transacted With for Interest Rate Swap Agreements | Bank 3      
Derivative, Amount of Hedged Item $ 100,000      
Debt Instrument, Description of Variable Rate Basis one-month LIBOR      
Interest Rate Swap [Member] | Designated as Hedging Instrument [Member] | Cash Flow Hedging [Member]        
Derivative [Line Items]        
Derivative, Fixed Interest Rate 1.03%