Quarterly report pursuant to Section 13 or 15(d)

Debt - Additional Information (Details)

v3.21.1
Debt - Additional Information (Details)
$ in Thousands
3 Months Ended 6 Months Ended
Apr. 16, 2012
USD ($)
Feb. 28, 2021
USD ($)
Feb. 28, 2021
USD ($)
Feb. 29, 2020
USD ($)
Nov. 30, 2019
USD ($)
Debt Instrument [Line Items]          
Debt Issuance Costs, Noncurrent, Net   $ 600 $ 600    
Interest coverage ratio   3.0 3.0    
Borrowings on Revolving Credit     $ 10,000 $ 100,000  
Repayments of Long-term Debt   $ 45,000      
Revolving Credit Facility          
Debt Instrument [Line Items]          
Line of Credit Facility, Maximum Borrowing Capacity   400,000 400,000   $ 300,000
Senior Credit Facility - Term Loan          
Debt Instrument [Line Items]          
Line of Credit Facility, Maximum Borrowing Capacity   200,000 200,000    
Senior Credit Facility - Revolver          
Debt Instrument [Line Items]          
Borrowings on Revolving Credit     210,000    
Line of Credit | Senior Credit Facility - Revolver          
Debt Instrument [Line Items]          
Unused credit line Available for Borrowing, Amount   $ 185,700 $ 185,700    
Senior Notes | 5.625% Senior Notes          
Debt Instrument [Line Items]          
Debt Instrument, Face Amount $ 300,000        
Debt instrument, interest rate 5.625%        
Minimum          
Debt Instrument [Line Items]          
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage   0.15%      
Interest coverage ratio   3.0 3.0    
Fixed Charge Coverage Ratio   3.5 3.5    
Minimum | London Interbank Offered Rate (LIBOR)          
Debt Instrument [Line Items]          
Debt Instrument, Basis Spread on Variable Rate   1.125%      
Minimum | Base Rate          
Debt Instrument [Line Items]          
Debt Instrument, Basis Spread on Variable Rate   1.00%      
Minimum | Senior Notes | 5.625% Senior Notes          
Debt Instrument [Line Items]          
Debt Instrument, Redemption Price, Percentage 100.00%        
Maximum          
Debt Instrument [Line Items]          
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage   0.30%      
Leverage ratio   3.75 3.75    
Adjusted Leverage Ratio   4.25 4.25    
Maximum | London Interbank Offered Rate (LIBOR)          
Debt Instrument [Line Items]          
Debt Instrument, Basis Spread on Variable Rate   2.00%      
Maximum | Base Rate          
Debt Instrument [Line Items]          
Debt Instrument, Basis Spread on Variable Rate   0.125%      
Accordion [Domain]          
Debt Instrument [Line Items]          
Senior credit facility expansion option, available   $ 300,000 $ 300,000    
Incremental Term Loan [Domain]          
Debt Instrument [Line Items]          
Senior credit facility expansion option, available   $ 200,000 $ 200,000