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Financial Instruments and Fair Value Measurements (Narrative) (Details) (USD $)
In Thousands, unless otherwise specified
 3 Months Ended 9 Months Ended 3 Months Ended 9 Months Ended 3 Months Ended 9 Months Ended 3 Months Ended 12 Months Ended 9 Months Ended 3 Months Ended 9 Months Ended 3 Months Ended 9 Months Ended 3 Months Ended 6 Months Ended 9 Months Ended
Sep. 30, 2014
Sep. 30, 2013
Sep. 30, 2014
Sep. 30, 2013
Sep. 30, 2014
Euro-Denominated Foreign Currency Forward Contracts [Member]
Sep. 30, 2013
Euro-Denominated Foreign Currency Forward Contracts [Member]
Sep. 30, 2014
Euro-Denominated Foreign Currency Forward Contracts [Member]
Sep. 30, 2013
Euro-Denominated Foreign Currency Forward Contracts [Member]
Sep. 30, 2014
Interest Rate Swap [Member]
Sep. 30, 2013
Interest Rate Swap [Member]
Sep. 30, 2014
Interest Rate Swap [Member]
Sep. 30, 2013
Interest Rate Swap [Member]
Sep. 30, 2014
Senior Notes [Member]
Sep. 01, 2014
Senior Notes [Member]
Dec. 31, 2013
Senior Notes [Member]
Oct. 04, 2010
Senior Notes [Member]
Sep. 30, 2014
Cash Flow Hedging [Member]
Copper Commodity [Member]
lb
Sep. 30, 2014
Designated as Hedging Instrument [Member]
Cash Flow Hedging [Member]
Forward Currency Contracts [Member]
Dec. 31, 2013
Designated as Hedging Instrument [Member]
Cash Flow Hedging [Member]
Forward Currency Contracts [Member]
Sep. 30, 2014
Designated as Hedging Instrument [Member]
Cash Flow Hedging [Member]
Mexican Peso-Denominated Foreign Currency Forward Contracts [Member]
Dec. 31, 2013
Designated as Hedging Instrument [Member]
Cash Flow Hedging [Member]
Mexican Peso-Denominated Foreign Currency Forward Contracts [Member]
Dec. 31, 2013
Designated as Hedging Instrument [Member]
Cash Flow Hedging [Member]
Copper Commodity [Member]
lb
Sep. 30, 2014
Designated as Hedging Instrument [Member]
Fair Value Hedging [Member]
Interest Rate Swap [Member]
Dec. 31, 2013
Designated as Hedging Instrument [Member]
Fair Value Hedging [Member]
Interest Rate Swap [Member]
Sep. 30, 2014
Not Designated as Hedging Instrument [Member]
Forward Currency Contracts [Member]
Dec. 31, 2013
Not Designated as Hedging Instrument [Member]
Forward Currency Contracts [Member]
Sep. 30, 2014
Not Designated as Hedging Instrument [Member]
Euro-Denominated Foreign Currency Forward Contracts [Member]
Dec. 31, 2013
Not Designated as Hedging Instrument [Member]
Euro-Denominated Foreign Currency Forward Contracts [Member]
Sep. 30, 2014
Not Designated as Hedging Instrument [Member]
Copper Commodity [Member]
lb
Sep. 30, 2014
Not Designated as Hedging Instrument [Member]
Interest Rate Swap [Member]
Sep. 30, 2014
London Interbank Offered Rate (LIBOR) [Member]
Interest Rate Swap [Member]
Jun. 30, 2014
Wiring [Member]
Cash Flow Hedging [Member]
Scenario, Forecast [Member]
security
Jun. 30, 2014
Wiring [Member]
Cash Flow Hedging [Member]
Mexican Peso-Denominated Foreign Currency Forward Contracts [Member]
security
Jun. 30, 2014
Wiring [Member]
Cash Flow Hedging [Member]
Mexican Peso-Denominated Foreign Currency Forward Contracts [Member]
Scenario, Forecast [Member]
security
Jun. 30, 2014
Wiring [Member]
Not Designated as Hedging Instrument [Member]
Mexican Peso-Denominated Foreign Currency Forward Contracts [Member]
Sep. 30, 2014
Wiring [Member]
Not Designated as Hedging Instrument [Member]
Mexican Peso-Denominated Foreign Currency Forward Contracts [Member]
Aug. 04, 2014
Wiring [Member]
Not Designated as Hedging Instrument [Member]
Mexican Peso-Denominated Foreign Currency Forward Contracts [Member]
security
Jun. 30, 2014
Wiring [Member]
Not Designated as Hedging Instrument [Member]
Copper Commodity [Member]
Sep. 30, 2014
Wiring [Member]
Not Designated as Hedging Instrument [Member]
Copper Commodity [Member]
Sep. 30, 2014
PST [Member]
Jun. 30, 2014
PST [Member]
Sep. 30, 2014
PST [Member]
Sep. 30, 2014
Fair Value, Inputs, Level 2 [Member]
Senior Notes [Member]
Dec. 31, 2013
Fair Value, Inputs, Level 2 [Member]
Senior Notes [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]                                                                                        
Face value of senior secured notes                         $ 157,500 $ 175,000 $ 175,000 $ 175,000                                                        
Estimated fair value of senior secured notes                                                                                     165,500 190,100
Notional amounts                                   4,500 [1] 45,000 [1] 4,500 45,000   45,000 45,000 [1] 3,532 [1] 13,335 [1] 3,532 13,335   45,000                            
Gain (loss) on derivative instruments held for trading purposes, net         1,064 (489) 1,089 (655)                                                                        
Number of hedge contracts expected to be fulfilled                                                                   2                    
Number of hedge contracts                                                               3 5                      
Number od derivatives terminated and settled                                                                         3              
Gain on derivatives not designated as hedging instruments                                                                     320 320   77 77          
Fixed price commodity contracts (in pounds)                                 781,000         1,582,000 [1]             781,000 [1]                              
Discription of variable rate basis of derivative                     the Company pays a variable interest rate equal to the six-month London Interbank Offered Rate ("LIBOR") plus 7.2%                                                                  
Variable interest rate in addition to LIBOR                                                             7.20%                          
Fixed interest rate                 9.50%   9.50%   9.50%                                                              
Reduced interest expense as a result of swap                 (194) (222) (625) (644)                                                                
Amount from cash flow hedge derivatives to be reclassified 138   138                                                                                  
Goodwill impairment charge (benefit) $ (5,802)    $ 23,498                                                                          $ (5,802) $ 29,300 $ 23,498    
[1] Notional amounts represent the gross contract / notional amount of the derivatives outstanding. The fixed price commodity contract notional amounts are in pounds.