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Financial Instruments and Fair Value Measurements (Details 2) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2012
Dec. 31, 2011
Financial assets carried at fair value:    
Interest rate swap contract $ 2,212 $ 1,078
Forward currency contracts 1,800 2
Fixed price commodity contracts 340 0
Total financial assets carried at fair value 4,352 1,080
Financial liabilities carried at fair value:    
Forward currency contracts 191 4,158
Fixed price commodity contracts 0 3,564
Total financial liabilities carried at fair value 191 7,722
Fair Value, Inputs, Level 1 [Member]
    
Financial assets carried at fair value:    
Interest rate swap contract 0 [1]  
Forward currency contracts 0 [1]  
Fixed price commodity contracts 0 [1]  
Total financial assets carried at fair value 0 [1]  
Financial liabilities carried at fair value:    
Forward currency contracts 0 [1]  
Fixed price commodity contracts 0 [1]  
Total financial liabilities carried at fair value 0 [1]  
Fair Value, Inputs, Level 2 [Member]
    
Financial assets carried at fair value:    
Interest rate swap contract 2,212 [2]  
Forward currency contracts 1,800 [2]  
Fixed price commodity contracts 340 [2]  
Total financial assets carried at fair value 4,352 [2]  
Financial liabilities carried at fair value:    
Forward currency contracts 191 [2]  
Fixed price commodity contracts 0 [2]  
Total financial liabilities carried at fair value 191 [2]  
Fair Value, Inputs, Level 3 [Member]
    
Financial assets carried at fair value:    
Interest rate swap contract 0 [3]  
Forward currency contracts 0 [3]  
Fixed price commodity contracts 0 [3]  
Total financial assets carried at fair value 0 [3]  
Financial liabilities carried at fair value:    
Forward currency contracts 0 [3]  
Fixed price commodity contracts 0 [3]  
Total financial liabilities carried at fair value $ 0 [3]  
[1] Fair values estimated using Level 1 inputs, which consist of quoted prices in active markets for identical assets or liabilities that the Company has the ability to access at the measurement date. The Company did not have any fair value estimates using Level 1 inputs at December 31, 2012 or 2011.
[2] Fair values estimated using Level 2 inputs, other than quoted prices, that are observable for the asset or liability, either directly or indirectly and include among other things, quoted prices for similar assets or liabilities in markets that are active or inactive as well as inputs other than quoted prices that are observable. For forward currency, commodity hedge and interest rate swap contracts, inputs include foreign currency exchange rates, commodity indexes and the six-month forward LIBOR.
[3] Fair values estimated using Level 3 inputs consist of significant unobservable inputs. The Company did not have any fair value estimates using Level 3 inputs at December 31, 2011 and 2010.