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Financial Instruments and Fair Value Measurements (Narrative) (Details) (USD $)
In Thousands, unless otherwise specified
 12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]      
Variable interest rate in addition to LIBOR 7.20%    
Fixed interest rate 9.50%    
Amount from cash flow hedge derivatives to be reclassified $ 111    
Fair value adjustments of goodwill 0 0  
Goodwill impairments     4,945
BCS [Member]
      
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]      
Goodwill impairments     4,945
Euro-Denominated and Sweedish Krona-Denominated Foreign Currency Forward Contracts [Member]
      
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]      
Gain (loss) on derivative instruments held for trading purposes, net (638) (492) 225
Copper Commodity [Member]
      
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]      
Fixed price commodity contracts (in pounds) 1,582,000 2,436,000  
Interest Rate Swap [Member]
      
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]      
Reduced interest expense as a result of Swap 810 736 473
Senior Notes [Member]
      
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]      
Face value of senior secured notes 175,000 175,000  
Estimated fair value of senior secured notes 190,103 188,895  
Designated as Hedging Instrument [Member] | Cash Flow Hedging [Member] | Forward Currency Contracts [Member]
      
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]      
Notional amounts 45,000 [1] 36,500 [1]  
Designated as Hedging Instrument [Member] | Cash Flow Hedging [Member] | Mexican Peso-Denominated Foreign Currency Forward Contracts [Member]
      
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]      
Notional amounts 45,000 36,500  
Designated as Hedging Instrument [Member] | Cash Flow Hedging [Member] | Copper Commodity [Member]
      
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]      
Fixed price commodity contracts (in pounds) 1,582,000 [1] 2,436,000 [1]  
Designated as Hedging Instrument [Member] | Fair Value Hedging [Member] | Interest Rate Swap [Member]
      
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]      
Notional amounts 45,000 [1] 45,000 [1]  
Not Designated as Hedging Instrument [Member] | Forward Currency Contracts [Member]
      
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]      
Notional amounts 13,335 [1] 12,643 [1]  
Not Designated as Hedging Instrument [Member] | Euro-Denominated Foreign Currency Forward Contracts [Member]
      
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]      
Notional amounts $ 13,335 $ 12,643  
[1] Notional amounts represent the gross contract / notional amount of the derivatives outstanding.