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Long-Term Debt - Additional Information (Details)
3 Months Ended
Feb. 28, 2021
USD ($)
Debt Instrument [Line Items]  
Increase (decrease) of long-term debt $ 26,000,000.0
Structured notes  
Debt Instrument [Line Items]  
Debt principal amount 54,100,000
Secured long-term debt | Revolving Credit Facility  
Debt Instrument [Line Items]  
Borrowings under the Revolving Credit Facility 189,900,000
Secured long-term debt | Secured Bank Loan  
Debt Instrument [Line Items]  
Revolving credit facility, maximum principal amount $ 50,000,000.0
Secured long-term debt | Secured Bank Loan | LIBOR  
Debt Instrument [Line Items]  
Basis spread on variable rate 1.25%