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STOCKHOLDERS' EQUITY (Schedule of Dividends) (Details) - $ / shares
3 Months Ended 6 Months Ended
Feb. 28, 2019
Jan. 30, 2019
Aug. 31, 2018
Feb. 28, 2018
Jan. 24, 2018
Feb. 28, 2019
Feb. 28, 2018
Feb. 28, 2019
Feb. 28, 2018
Dividends Payable [Line Items]                  
Amount           $ 0.70 $ 0.70 $ 0.70 $ 0.70
2019 Dividend Declared [Member]                  
Dividends Payable [Line Items]                  
Declared               Jan. 30, 2019  
Amount   $ 0.70              
2018 Dividend Declared [Member]                  
Dividends Payable [Line Items]                  
Declared               Jan. 24, 2018  
Amount         $ 0.70        
2019 First Dividend Paid [Member]                  
Dividends Payable [Line Items]                  
Record Date               Feb. 15, 2019  
Date Paid               Feb. 28, 2019  
Payment Amount $ 0.35                
2019 Second Dividend Paid [Member]                  
Dividends Payable [Line Items]                  
Record Date               Aug. 15, 2019  
Date Payable               Aug. 30, 2019  
Payment Amount               $ 0.35  
2018 First Dividend Paid [Member]                  
Dividends Payable [Line Items]                  
Record Date               Feb. 14, 2018  
Date Paid               Feb. 28, 2018  
Payment Amount       $ 0.35          
2018 Second Dividend Paid [Member]                  
Dividends Payable [Line Items]                  
Record Date               Aug. 15, 2018  
Date Paid               Aug. 31, 2018  
Payment Amount     $ 0.35