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Discontinued Operations (Depreciation, Amortization, and Capital Expenditures of Discontinued Operations) (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2014
Sep. 30, 2015
Sep. 30, 2014
Capital expenditures   $ 23,521 $ 19,772
Wiring [Member]      
Depreciation and amortization     2,111
Capital expenditures $ 397   $ 1,238