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DIVIDENDS AND STOCK REPURCHASE PROGRAMS - Additional Information (Detail) - USD ($)
$ in Thousands
12 Months Ended
Jun. 30, 2017
Jun. 30, 2016
Jun. 30, 2015
Feb. 16, 2017
Dec. 15, 2015
Share Repurchases [Line Items]          
Treasury Stock Value Acquired Cost Method $ 48,508 $ 32,634 $ 25,918    
Ninth share repurchase plan [Member]          
Share Repurchases [Line Items]          
Treasury Stock Shares Acquired 802,948        
Treasury Stock Value Acquired Cost Method $ 20,500        
Tenth share repurchase plan [Member]          
Share Repurchases [Line Items]          
Authorized amount for repurchase $ 28,000        
Treasury Stock Shares Acquired 785,296        
Maximum | Ninth share repurchase plan [Member]          
Share Repurchases [Line Items]          
Authorized amount for repurchase         $ 100,000
Maximum | Tenth share repurchase plan [Member]          
Share Repurchases [Line Items]          
Authorized amount for repurchase       $ 300,000