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Long-Term Debt (Details)
$ in Millions
Aug. 31, 2021
USD ($)
Debt Instrument [Line Items]  
Maximum additional debt allowed under debt covenants $ 727.6
Maximum additional debt allowed in the event a qualified acquisition is consummated 756.8
Revolving loan  
Debt Instrument [Line Items]  
Maximum revolving commitment 1,250.0
Credit agreement | Letter of credit  
Debt Instrument [Line Items]  
Amount outstanding, letters of credit 34.2
MBFC loan  
Debt Instrument [Line Items]  
Amount available for borrowings $ 756.8