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Financial Instruments and Fair Value Measurements (Schedule of Cash Flow Hedges Included in Accumulated Other Comprehensive Income (Loss)) (Details) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2015
Jun. 30, 2014
Jun. 30, 2015
Jun. 30, 2014
Derivatives designated as cash flow hedges:        
Gain (loss) recorded in other comprehensive income (loss)     $ (103) $ 216
Gain (loss) reclassified from other comprehensive income (loss) into net income (loss)     (310) 121
Forward Currency Contracts [Member]        
Derivatives designated as cash flow hedges:        
Gain (loss) recorded in other comprehensive income (loss)     (103) 534
Gain (loss) reclassified from other comprehensive income (loss) into net income (loss)     $ (310) 242
Commodity Contract [Member]        
Derivatives designated as cash flow hedges:        
Gain (loss) recorded in other comprehensive income (loss)       (318)
Gain (loss) reclassified from other comprehensive income (loss) into net income (loss)       $ (121)
Designated as Hedging Instrument [Member]        
Derivatives designated as cash flow hedges:        
Gain (loss) recorded in other comprehensive income (loss) $ (900) $ 570    
Gain (loss) reclassified from other comprehensive income (loss) into net income (loss) (172) 332    
Designated as Hedging Instrument [Member] | Forward Currency Contracts [Member]        
Derivatives designated as cash flow hedges:        
Gain (loss) recorded in other comprehensive income (loss) (900) 416    
Gain (loss) reclassified from other comprehensive income (loss) into net income (loss) $ (172) 423    
Designated as Hedging Instrument [Member] | Commodity Contract [Member]        
Derivatives designated as cash flow hedges:        
Gain (loss) recorded in other comprehensive income (loss)   154    
Gain (loss) reclassified from other comprehensive income (loss) into net income (loss)   $ (91)