Quarterly report pursuant to Section 13 or 15(d)

Debt - Additional Information (Details)

v3.20.4
Debt - Additional Information (Details)
$ in Thousands
3 Months Ended
Apr. 16, 2012
USD ($)
Nov. 30, 2020
USD ($)
Nov. 30, 2019
USD ($)
Aug. 31, 2019
USD ($)
Debt Instrument [Line Items]        
Debt Issuance Costs, Noncurrent, Net   $ 600    
Borrowings on Revolving Credit   10,000 $ 100,000  
Revolving Credit Facility        
Debt Instrument [Line Items]        
Line of Credit Facility, Maximum Borrowing Capacity   400,000   $ 300,000
Senior Credit Facility - Term Loan        
Debt Instrument [Line Items]        
Line of Credit Facility, Maximum Borrowing Capacity   200,000    
Senior Credit Facility - Revolver        
Debt Instrument [Line Items]        
Borrowings on Revolving Credit   255,000    
Line of Credit | Senior Credit Facility - Revolver        
Debt Instrument [Line Items]        
Unused credit line Available for Borrowing, Amount   $ 139,900    
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    
Fixed Charge Coverage Ratio   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    
Adjusted Leverage Ratio   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    
Incremental Term Loan [Domain]        
Debt Instrument [Line Items]        
Senior credit facility expansion option, available   $ 200,000