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Goodwill and Intangibles (Narrative) (Details) - USD ($)
$ in Thousands
 3 Months Ended
Mar. 31, 2017
Mar. 31, 2016
Dec. 31, 2016
Goodwill $ 35,181   $ 931
Amortization expense 1,394 $ 726  
Amortization expense 2017 6,100    
Amortization expense 2018 6,300    
Amortization expense 2019 6,300    
Amortization expense 2020 6,300    
Amortization expense 2021 6,300    
Electronics [Member]      
Goodwill $ 35,181   $ 931