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Intangible Assets Including Goodwill - Carrying Value of Other Intangible Assets (Details) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2017
Dec. 31, 2016
Jun. 30, 2017
Finite-Lived Intangible Assets [Line Items]          
Finite-Lived Intangible Assets, Gross $ 46,001   $ 46,001   $ 43,869
Accumulated Amortization (20,637)   (20,637)   (17,573)
Net Carrying Amount 25,364   25,364   26,296
Total intangible assets, net carrying amount 25,364   25,364   26,296
Amortization expense 1,400 $ 1,000 3,000 $ 1,800  
Intellectual Property [Member]          
Finite-Lived Intangible Assets [Line Items]          
Finite-Lived Intangible Assets, Gross 2,579   2,579   2,579
Accumulated Amortization (1,514)   (1,514)   (1,425)
Net Carrying Amount 1,065   $ 1,065   1,154
Intellectual Property [Member] | Minimum [Member]          
Finite-Lived Intangible Assets [Line Items]          
Finite-Lived Intangible Asset, Useful Life     9 years 9 years  
Intellectual Property [Member] | Maximum [Member]          
Finite-Lived Intangible Assets [Line Items]          
Finite-Lived Intangible Asset, Useful Life     15 years 15 years  
Customer Relationships [Member]          
Finite-Lived Intangible Assets [Line Items]          
Finite-Lived Intangible Assets, Gross 40,339   $ 40,339   38,207
Accumulated Amortization (16,092)   (16,092)   (13,543)
Net Carrying Amount 24,247   $ 24,247   24,664
Customer Relationships [Member] | Minimum [Member]          
Finite-Lived Intangible Assets [Line Items]          
Finite-Lived Intangible Asset, Useful Life     6 years 1 year  
Customer Relationships [Member] | Maximum [Member]          
Finite-Lived Intangible Assets [Line Items]          
Finite-Lived Intangible Asset, Useful Life     15 years 15 years  
Noncompete Agreements [Member]          
Finite-Lived Intangible Assets [Line Items]          
Finite-Lived Intangible Assets, Gross 1,453   $ 1,453   1,453
Finite-Lived Intangible Asset, Useful Life     4 years    
Accumulated Amortization (1,401)   $ (1,401)   (1,298)
Net Carrying Amount 52   52   155
Noncompete Agreements [Member] | Minimum [Member]          
Finite-Lived Intangible Assets [Line Items]          
Finite-Lived Intangible Asset, Useful Life       4 years  
Noncompete Agreements [Member] | Maximum [Member]          
Finite-Lived Intangible Assets [Line Items]          
Finite-Lived Intangible Asset, Useful Life       5 years  
Trade Names [Member]          
Finite-Lived Intangible Assets [Line Items]          
Finite-Lived Intangible Assets, Gross 1,630   $ 1,630   1,630
Finite-Lived Intangible Asset, Useful Life     0 years    
Accumulated Amortization (1,630)   $ (1,630)   (1,307)
Net Carrying Amount $ 0   $ 0   $ 323
Trade Names [Member] | Minimum [Member]          
Finite-Lived Intangible Assets [Line Items]          
Finite-Lived Intangible Asset, Useful Life       3 years  
Trade Names [Member] | Maximum [Member]          
Finite-Lived Intangible Assets [Line Items]          
Finite-Lived Intangible Asset, Useful Life       5 years