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Long Term Debt - Revolving Credit Agreement (Details) - USD ($)
3 Months Ended 6 Months Ended
Nov. 14, 2017
Aug. 31, 2019
Sep. 01, 2018
Aug. 31, 2019
Sep. 01, 2018
Senior Unsecured Notes and Revolver [Member]          
Debt Instrument [Line Items]          
Interest expense   $ 18,200,000 $ 18,300,000 $ 36,400,000 $ 36,500,000
Revolving Credit Facility [Member] | Revolver [Member]          
Debt Instrument [Line Items]          
Senior unsecured revolving credit facility $ 250,000,000        
Debt instrument term (in years) 5 years        
Revolving Credit Facility [Member] | New Revolver [Member]          
Debt Instrument [Line Items]          
Senior unsecured revolving credit facility $ 250,000,000        
Debt instrument term (in years) 5 years        
Other Assets [Member] | Senior Unsecured Notes and Revolver [Member]          
Debt Instrument [Line Items]          
Deferred financing costs $ 10,500,000