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Debt - Additional Information (Details)
12 Months Ended
Aug. 22, 2022
USD ($)
Aug. 31, 2023
USD ($)
Aug. 31, 2022
USD ($)
Aug. 22, 2022
CAD ($)
Debt Instrument [Line Items]        
Other debt obligations   $ 12,192,000 $ 12,668,000  
For Certain Obligations Workers Compensation And Performance Bonds        
Debt Instrument [Line Items]        
Letters of credit outstanding, amount   $ 8,000,000 8,000,000  
Other Debt Obligations        
Debt Instrument [Line Items]        
Debt instrument payment term   4 years    
Senior Secured Revolving Credit Facility | Bank of America NA And Other Lenders        
Debt Instrument [Line Items]        
Line of Credit Facility, Maximum Borrowing Capacity $ 800,000,000      
Secured Revolving Credit Facility | Bank of America NA And Other Lenders        
Debt Instrument [Line Items]        
Borrowings outstanding   $ 230,000,000 $ 230,000,000  
Weighted average interest rate   7.17% 3.65%  
Secured Revolving Credit Facility | Bank of America NA And Other Lenders | Line of Credit        
Debt Instrument [Line Items]        
Borrowings outstanding   $ 230,000,000 $ 230,000,000  
Senior Secured Credit Facilities, Amended Credit Agreement | Bank of America NA And Other Lenders        
Debt Instrument [Line Items]        
Line of Credit Facility, Maximum Borrowing Capacity $ 800,000,000     $ 15,000,000
Debt instrument, Maturity date Aug. 31, 2027      
Debt issuance costs $ 2,000,000      
Debt issuance costs amortized to interest expense term 5 years      
Senior Secured Credit Facilities, Amended Credit Agreement | Bank of America NA And Other Lenders | Line of Credit | Minimum        
Debt Instrument [Line Items]        
Commitment fee percentage 0.175%      
Senior Secured Credit Facilities, Amended Credit Agreement | Bank of America NA And Other Lenders | Line of Credit | Maximum        
Debt Instrument [Line Items]        
Commitment fee percentage 0.30%      
Senior Secured Credit Facilities, Amended Credit Agreement | Bank of America NA And Other Lenders | Line of Credit | Amended Credit Agreement, Interest Rate Option 1 | Secured Overnight Financing Rate (SOFR) | Minimum        
Debt Instrument [Line Items]        
Debt instrument, Variable rate 1.25%      
Senior Secured Credit Facilities, Amended Credit Agreement | Bank of America NA And Other Lenders | Line of Credit | Amended Credit Agreement, Interest Rate Option 1 | Secured Overnight Financing Rate (SOFR) | Maximum        
Debt Instrument [Line Items]        
Debt instrument, Variable rate 2.00%      
Senior Secured Credit Facilities, Amended Credit Agreement | Bank of America NA And Other Lenders | Line of Credit | Amended Credit Agreement, Interest Rate Option 2 | Federal Funds Effective Swap Rate        
Debt Instrument [Line Items]        
Debt instrument, Variable rate 0.50%      
Senior Secured Credit Facilities, Amended Credit Agreement | Bank of America NA And Other Lenders | Line of Credit | Amended Credit Agreement, Interest Rate Option 2 | Secured Overnight Financing Rate (SOFR)        
Debt Instrument [Line Items]        
Debt instrument, Variable rate 1.00%      
Senior Secured Credit Facilities, Amended Credit Agreement | Bank of America NA And Other Lenders | Line of Credit | Amended Credit Agreement, Interest Rate Option 2 | Secured Overnight Financing Rate (SOFR) | Minimum        
Debt Instrument [Line Items]        
Debt instrument, Variable rate 0.25%      
Senior Secured Credit Facilities, Amended Credit Agreement | Bank of America NA And Other Lenders | Line of Credit | Amended Credit Agreement, Interest Rate Option 2 | Secured Overnight Financing Rate (SOFR) | Maximum        
Debt Instrument [Line Items]        
Debt instrument, Variable rate 1.00%      
Senior Secured Credit Facilities, Amended Credit Agreement | Bank of America NA And Other Lenders | Letters of Credit        
Debt Instrument [Line Items]        
Line of Credit Facility, Maximum Borrowing Capacity $ 50,000,000      
Senior Secured Credit Facilities, Amended Credit Agreement | Bank of America NA And Other Lenders | Swingline Loans        
Debt Instrument [Line Items]        
Line of Credit Facility, Maximum Borrowing Capacity 25,000,000      
Senior Secured Credit Facilities, Amended Credit Agreement | Bank of America NA And Other Lenders | Multicurrency Borrowings        
Debt Instrument [Line Items]        
Line of Credit Facility, Maximum Borrowing Capacity 50,000,000      
Senior Secured Credit Facilities, Prior Credit Agreement | Bank of America NA And Other Lenders        
Debt Instrument [Line Items]        
Line of Credit Facility, Maximum Borrowing Capacity $ 700,000,000     $ 15,000,000
Debt instrument, Maturity date Aug. 31, 2023      
Senior Secured Credit Facilities, Prior Credit Agreement | Bank of America NA And Other Lenders | Line of Credit | Minimum        
Debt Instrument [Line Items]        
Commitment fee percentage 0.20%      
Senior Secured Credit Facilities, Prior Credit Agreement | Bank of America NA And Other Lenders | Line of Credit | Maximum        
Debt Instrument [Line Items]        
Commitment fee percentage 0.50%      
Senior Secured Credit Facilities, Prior Credit Agreement | Bank of America NA And Other Lenders | Line of Credit | Federal Funds Effective Swap Rate        
Debt Instrument [Line Items]        
Debt instrument, Variable rate 0.50%      
Senior Secured Credit Facilities, Prior Credit Agreement | Bank of America NA And Other Lenders | Line of Credit | Amended Credit Agreement, Interest Rate Option 1 | London Interbank Offered Rate (LIBOR) | Minimum        
Debt Instrument [Line Items]        
Debt instrument, Variable rate 1.25%      
Senior Secured Credit Facilities, Prior Credit Agreement | Bank of America NA And Other Lenders | Line of Credit | Amended Credit Agreement, Interest Rate Option 1 | London Interbank Offered Rate (LIBOR) | Maximum        
Debt Instrument [Line Items]        
Debt instrument, Variable rate 3.50%      
Senior Secured Credit Facilities, Prior Credit Agreement | Bank of America NA And Other Lenders | Line of Credit | Amended Credit Agreement, Interest Rate Option 2 | London Interbank Offered Rate (LIBOR)        
Debt Instrument [Line Items]        
Debt instrument, Variable rate 1.75%      
Senior Secured Credit Facilities, Prior Credit Agreement | Bank of America NA And Other Lenders | Line of Credit | Amended Credit Agreement, Interest Rate Option 2 | London Interbank Offered Rate (LIBOR) | Minimum        
Debt Instrument [Line Items]        
Debt instrument, Variable rate 0.00%      
Senior Secured Credit Facilities, Prior Credit Agreement | Bank of America NA And Other Lenders | Line of Credit | Amended Credit Agreement, Interest Rate Option 2 | London Interbank Offered Rate (LIBOR) | Maximum        
Debt Instrument [Line Items]        
Debt instrument, Variable rate 2.50%