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INCOME TAXES - Schedule of Unrecognized Tax Benefits (Detail 4) - USD ($)
$ in Thousands
12 Months Ended
Jun. 30, 2018
Jun. 30, 2017
Jun. 30, 2016
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]      
Beginning of year $ 1,639 $ 398 $ 6,220
Additions based on current year tax positions 2,483 1,475 89
Lapse of statute of limitations   (234) (128)
Settlement with taxing authorities     (5,783)
End of year $ 4,122 $ 1,639 $ 398