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Goodwill And Intangibles (Intangible Assets) (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Finite-Lived Intangible Assets [Line Items]    
Gross Carrying Amount $ 116,280 $ 74,188
Accumulated Amortization (29,141) (22,965)
Net Carrying Amount 87,139 51,223
Patents    
Finite-Lived Intangible Assets [Line Items]    
Gross Carrying Amount 8,036 8,036
Accumulated Amortization (6,028) (5,486)
Net Carrying Amount $ 2,008 $ 2,550
Intangible asset, useful life 8 years 8 years
Customer Relationships    
Finite-Lived Intangible Assets [Line Items]    
Gross Carrying Amount $ 57,849 $ 26,768
Accumulated Amortization (6,427) (5,584)
Net Carrying Amount $ 51,422 $ 21,184
Intangible asset, useful life 11 years 11 years
Production know-how    
Finite-Lived Intangible Assets [Line Items]    
Gross Carrying Amount $ 9,211 $ 6,820
Accumulated Amortization (6,212) (5,035)
Net Carrying Amount $ 2,999 $ 1,785
Intangible asset, useful life 7 years 8 years
Technology, trademark, tradename    
Finite-Lived Intangible Assets [Line Items]    
Gross Carrying Amount $ 41,184 $ 32,564
Accumulated Amortization (10,474) (6,860)
Net Carrying Amount $ 30,710 $ 25,704
Intangible asset, useful life 7 years 8 years