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Discontinued Operations (Narrative) (Details) (Wiring [Member], USD $)
In Thousands, unless otherwise specified
 3 Months Ended 6 Months Ended 0 Months Ended
Jun. 30, 2014
Jun. 30, 2013
Jun. 30, 2014
Jun. 30, 2013
May 26, 2014
Scenario, Plan [Member]
Aug. 01, 2014
Subsequent Event [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]            
Cash received for sale of business segment           $ 71,400
Base purchase price         65,700 65,700
Working capital adjustment           2,600
Return of Wiring business cash           3,100
Write-down of asset group to fair value less cost to sell 1,000   1,000      
After-tax write-down of asset group to fair value less cost to sell 660   660      
Assets held-for-sale 106,347   106,347      
Liabilities of assets held-for-sale 33,084   33,084      
Intercompany sales 1,669 2,198 3,544 3,801    
Intercompany purchases $ 7,510 $ 6,736 $ 15,290 $ 13,401