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Acquisitions (Details) - USD ($)
$ in Thousands
Jun. 30, 2017
Jun. 30, 2016
Jan. 31, 2016
Jun. 30, 2015
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net [Abstract]        
Goodwill $ 23,982 $ 21,121   $ 12,613
MVP        
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net [Abstract]        
Working capital, net     $ 4,914  
Property, plant and equipment     4,774  
Definite-lived intangible assets     28,380  
Goodwill     8,508  
Net assets acquired     $ 46,576