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Derivative Financial Instruments (Details 2) - USD ($)
$ in Thousands
6 Months Ended
Jul. 30, 2016
Apr. 30, 2016
Jan. 30, 2016
Aug. 01, 2015
May 02, 2015
Jan. 31, 2015
Forward contracts designated as hedging instruments            
Net unrealized gain (loss) in accumulated other comprehensive income (loss) related to cash flow hedges $ (37) $ (3,773) $ 7,252 $ 5,868 $ 4,296 $ 7,157
Foreign exchange currency cash flow hedge unrealized gain to be recognized in cost of product sales or other income over the following 12 months 400          
Interest rate swap cash flow hedge unrealized loss to be recognized in interest expense after the following 12 months $ (400)          
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) 17 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) 17 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 $ 400          
Foreign exchange currency contracts | Cash flow hedges | Europe | Derivatives designated as hedging instruments            
Forward contracts designated as hedging instruments            
U.S. dollar forward contracts purchased, total notional amount 46,700          
Notional amount of derivative outstanding 106,400   106,300      
Foreign exchange currency contracts | Cash flow hedges | Canada | Derivatives designated as hedging instruments            
Forward contracts designated as hedging instruments            
U.S. dollar forward contracts purchased, total notional amount 35,900          
Notional amount of derivative outstanding 60,600   $ 48,200      
Interest rate swap            
Forward contracts designated as hedging instruments            
Net unrealized gain (loss) in accumulated other comprehensive income (loss) related to cash flow hedges (400)          
Interest rate swap | Cash flow hedges | Derivatives designated as hedging instruments            
Forward contracts designated as hedging instruments            
Notional amount of derivative outstanding $ 21,500          
Fixed rate of interest rate swap designated as a cash flow hedge (as a percent) 3.06%          
Derivate maturity date Jan. 31, 2026