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Income Taxes (Detail Textuals) - USD ($)
$ in Thousands
12 Months Ended
Jun. 30, 2017
Jun. 30, 2016
Jun. 30, 2015
Valuation Allowance [Line Items]      
Undistributed earnings of foreign subsidiaries $ 211,631    
Recognized interest and penalties expense (income) 116 $ (980) $ 66
Uncertain tax positions reversal in future period 300    
Domestic Jurisdiction      
Valuation Allowance [Line Items]      
Net operating loss carry forwards 9,191    
State Jurisdiction      
Valuation Allowance [Line Items]      
Net operating loss carry forwards 32,555    
Foreign Jurisdiction      
Valuation Allowance [Line Items]      
Net operating loss carry forwards $ 11,915