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Goodwill and Other Intangible Assets - Narrative (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2017
Dec. 31, 2016
Goodwill and Intangible Assets Disclosure [Abstract]        
Amortization of intangible assets $ 1,304 $ 549 $ 2,612 $ 1,099