Quarterly report pursuant to Section 13 or 15(d)

Earnings per Share and Shareholders' Equity Share Repurchase (Details)

v3.20.2
Earnings per Share and Shareholders' Equity Share Repurchase (Details) - USD ($)
3 Months Ended 9 Months Ended
May 31, 2020
May 31, 2020
May 31, 2019
Aug. 31, 2019
Equity [Abstract]        
Treasury Stock, Shares 22,799,230 22,799,230   21,455,568
Stock Repurchase Program, Authorized Amount $ 667,700,000 $ 667,700,000    
Stock Repurchase Program, Remaining Number of Shares Authorized to be Repurchased 5,200,770 5,200,770    
Stock Repurchased During Period, Shares 503,873 1,343,662    
Stock Repurchases $ (9,700,000) $ (27,520,000) $ 0