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Income Taxes (Detail Textual) - USD ($)
$ in Millions
3 Months Ended
Sep. 30, 2017
Sep. 30, 2016
Jun. 30, 2017
Income Tax Disclosure [Abstract]      
Liability for unrecognized tax benefits $ 1.7   $ 1.7
Unrecognized tax benefit that would impact the company's effective tax rate $ 1.7    
Effective tax rate, percentage 25.00% 35.90%  
Effective tax rate, percentage 11.80% 1.50%