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Income Taxes - Reconciliation of Unrecognized Tax Benefits (Details) - USD ($)
$ in Thousands
12 Months Ended
Jun. 30, 2018
Jun. 30, 2017
Jun. 30, 2016
Income Tax Disclosure [Abstract]      
Balance at beginning of year $ 2,632 $ 3,106 $ 14,619
Increases for tax positions of prior years 3,409 0 1,197
Decreases related to settlement with taxing authority 0 (231) (11,942)
Decreases related to lapse of statute of limitations (289) (184) (667)
Increase Resulting from Foreign Currency Translation 23    
Decrease Resulting from Foreign Currency Translation   (59) (101)
Balance at end of year $ 5,775 $ 2,632 $ 3,106