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STOCK-BASED COMPENSATION (Summary of Restricted Stock Units Activity) (Detail) - Restricted Stock Units (RSUs) [Member] - $ / shares
9 Months Ended
Mar. 31, 2019
Mar. 31, 2018
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 (450,484)  
Restricted Stock Units Outstanding, Shares Forfeited (79,958)  
Restricted Stock Units Outstanding at end of period 914,476  
Weighted Average Grant Date Fair Value, beginning balance $ 28.31  
Weighted Average Grant Date Fair Value, Shares Granted 49.57 $ 34.34
Weighted Average Grant Date Fair Value, Shares Vested 27.86  
Weighted Average Grant Date Fair Value, Shares Forfeited 33.26  
Weighted Average Grant Date Fair Value, ending balance $ 33.45