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Organization, Basis of Presentation and Significant Accounting Policies - Recent Accounting Pronouncements (Details) - USD ($)
$ in Thousands
May 31, 2020
Sep. 01, 2019
Accounting Policies [Abstract]    
Reporting Unit, Percentage of Fair Value in Excess of Carrying Amount 18.00%  
Cumulative Effect of New Accounting Principle in Period of Adoption   $ 33,700
Operating Lease, Right-of-Use Asset $ 261,125 268,400
Operating Lease, Liability $ 263,769 $ 267,000