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Derivative Financial Instruments (Details 2) - USD ($)
3 Months Ended 12 Months Ended
May 05, 2018
Jan. 28, 2017
Feb. 03, 2018
Apr. 29, 2017
Forward contracts designated as hedging instruments        
Net unrealized gain (loss) in accumulated other comprehensive income (loss) related to cash flow hedges $ (6,285,000) $ 5,400,000 $ (14,369,000) $ 4,948,000
Foreign exchange currency cash flow hedge unrealized loss to be recognized in cost of product sales or other expense over the following 12 months (7,200,000)      
Interest rate swap cash flow hedge unrealized gain to be recognized in interest expense after the following 12 months $ 1,200,000      
Cash flow hedges | Europe | Derivatives designated as hedging instruments        
Forward contracts designated as hedging instruments        
U.S. dollar forward contracts outstanding, maximum remaining maturity period (in months) 15 months      
Cash flow hedges | Canada | Derivatives designated as hedging instruments        
Forward contracts designated as hedging instruments        
U.S. dollar forward contracts outstanding, maximum remaining maturity period (in months) 15 months      
Foreign exchange currency contracts        
Forward contracts designated as hedging instruments        
Net unrealized gain (loss) in accumulated other comprehensive income (loss) related to cash flow hedges $ (7,400,000)      
Foreign exchange currency contracts | Cash flow hedges | Europe | Derivatives designated as hedging instruments        
Forward contracts designated as hedging instruments        
Total notional amount of derivatives purchased 15,300,000      
Notional amount of derivative outstanding 131,500,000   145,800,000  
Foreign exchange currency contracts | Cash flow hedges | Canada | Derivatives designated as hedging instruments        
Forward contracts designated as hedging instruments        
Notional amount of derivative outstanding 28,200,000   $ 38,700,000  
Interest rate swap        
Forward contracts designated as hedging instruments        
Net unrealized gain (loss) in accumulated other comprehensive income (loss) related to cash flow hedges $ 1,200,000      
Interest rate swap | Cash flow hedges | Derivatives designated as hedging instruments        
Forward contracts designated as hedging instruments        
Total notional amount of derivatives purchased   21,500,000    
Notional amount of derivative outstanding   $ 21,500,000    
Fixed rate of interest rate swap designated as a cash flow hedge (as a percent) 3.06%