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STOCK-BASED COMPENSATION (Summary of Restricted Stock Units Activity) (Detail) - Restricted Stock Units - $ / shares
12 Months Ended
Jun. 30, 2019
Jun. 30, 2018
Jun. 30, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Restricted Stock Units Outstanding at beginning of period 1,226,958    
Restricted Stock Units Outstanding, Shares Granted 217,960    
Restricted Stock Units Outstanding, Shares Vested (473,012)    
Restricted Stock Units Outstanding, Shares Forfeited (93,876)    
Restricted Stock Units Outstanding at end of period 878,030 1,226,958  
Weighted Average Grant Date Fair Value, Nonvested beginning balance $ 28.31    
Weighted Average Grant Date Fair Value, Shares Granted 49.57 $ 34.67 $ 23.92
Weighted Average Grant Date Fair Value, Shares Vested 27.66    
Weighted Average Grant Date Fair Value, Shares Forfeited 34.47    
Weighted Average Grant Date Fair Value, Nonvested ending balance $ 34.86 $ 28.31