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Derivatives (Details 1)
$ in Thousands
3 Months Ended 12 Months Ended
Apr. 28, 2017
USD ($)
Bank
Mar. 31, 2017
USD ($)
Mar. 31, 2016
USD ($)
Dec. 31, 2012
USD ($)
Bank
Derivative [Line Items]        
Maximum remaining maturity of foreign currency derivatives   2 years    
Derivative, Net Hedge Ineffectiveness Gain (Loss)   $ 0 $ 0  
Net cash losses from settlement   (5,828) (2,921)  
Foreign Exchange Contract [Member]        
Derivative [Line Items]        
Net cash losses from settlement   3,243 2,874  
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   83 (148)  
Designated as Hedging Instrument [Member] | Cash Flow Hedging [Member] | Interest Rate Contract [Member]        
Derivative [Line Items]        
Derivative Instruments, Gain (Loss) Recognized in Other Comprehensive Income (Loss), Effective Portion, Net   47 (65)  
Designated as Hedging Instrument [Member] | Cash Flow Hedging [Member] | Foreign Exchange Contract [Member]        
Derivative [Line Items]        
Derivative Instruments, Gain (Loss) Recognized in Other Comprehensive Income (Loss), Effective Portion, Net   36 (83)  
Not Designated as Hedging Instrument [Member] | Foreign Exchange Contract [Member]        
Derivative [Line Items]        
Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net   $ (896) $ (3,712)  
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 (in banks) | Bank       3
Fixed interest rate       1.03%
Interest Rate Swap [Member] | Designated as Hedging Instrument [Member] | Cash Flow Hedging [Member] | one-month LIBOR [Member]        
Derivative [Line Items]        
Derivative amount of hedge       $ 100,000
Subsequent Event [Member] | 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 (in banks) | Bank 1      
Fixed interest rate 1.92%      
Subsequent Event [Member] | Interest Rate Swap [Member] | Designated as Hedging Instrument [Member] | Cash Flow Hedging [Member] | one-month LIBOR [Member]        
Derivative [Line Items]        
Derivative amount of hedge $ 100,000