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Acquisitions - Narrative (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Dec. 16, 2015
Mar. 31, 2016
Mar. 31, 2016
Mar. 31, 2015
Jun. 30, 2015
Business Acquisition [Line Items]          
Net purchase price     $ 9,756 $ 0  
Estimated fair value of goodwill   $ 173,741 173,741   $ 168,146
Lewis Innovative Technologies, Inc. (LIT) [Member]          
Business Acquisition [Line Items]          
Net purchase price $ 9,756        
Escrow deposit 1,000        
Estimated fair value of identifiable intangible assets 3,960        
Estimated fair value of goodwill 5,595        
Revenue of acquiree since acquisition date   759 789    
Net loss of acquiree since acquisition date   $ (286) $ (326)    
Impairment expense related to pre-existing relationship 231        
Cash paid at closing 10,290        
Developed Technology Rights [Member] | Lewis Innovative Technologies, Inc. (LIT) [Member]          
Business Acquisition [Line Items]          
Estimated fair value of identifiable intangible assets 3,240        
Customer Relationships [Member] | Lewis Innovative Technologies, Inc. (LIT) [Member]          
Business Acquisition [Line Items]          
Estimated fair value of identifiable intangible assets 590        
Backlog [Member] | Lewis Innovative Technologies, Inc. (LIT) [Member]          
Business Acquisition [Line Items]          
Estimated fair value of identifiable intangible assets $ 130