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Fair Value Measurements (Details) - Fair values - USD ($)
$ in Thousands
Sep. 30, 2017
Jun. 30, 2017
Level 2    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Derivatives asset $ 1,781 $ 2,686
Interest rate swap 283  
Level 3    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Contingent consideration on acquisitions $ (7,827) $ (7,644)