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Subsequent Events (Narrative) (Details)
€ in Thousands, $ in Thousands
1 Months Ended 12 Months Ended
Jan. 31, 2017
EUR (€)
Jan. 31, 2017
USD ($)
Dec. 31, 2017
USD ($)
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]      
Revolving credit facility borrowings     $ 95,000
Orlaco [Member]      
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]      
Fair value of consideration transferred   $ 83,883  
Business acquisition, cash paid for acquired entity € 74,939 $ 79,675