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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, 2018
Mar. 31, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Restricted Stock Units Outstanding at beginning of period 1,279,667  
Restricted Stock Units Outstanding, Shares Granted 501,540  
Restricted Stock Units Outstanding, Shares Vested (367,384)  
Restricted Stock Units Outstanding, Shares Forfeited (162,012)  
Restricted Stock Units Outstanding at end of period 1,251,811  
Weighted Average Grant Date Fair Value, Nonvested beginning balance $ 26.14  
Weighted Average Grant Date Fair Value, Shares Granted 34.34 $ 23.89
Weighted Average Grant Date Fair Value, Shares Vested 31.28  
Weighted Average Grant Date Fair Value, Shares Forfeited 28.77  
Weighted Average Grant Date Fair Value, Nonvested ending balance $ 28.01