v3.26.3
Notes Payable and Long-Term Debt - Schedule of Long-Term Debt (Details) - USD ($)
$ in Thousands
Aug. 31, 2026
Aug. 31, 2025
Debt Instrument [Line Items]    
Long-term debt $ 2,004,312  
Finance lease liabilities (Note 19) 51,845 $ 55,198
Deferred financing costs (3,434) (3,894)
Other, including notes and contracts with interest rates from 3.9% to 4.0% 1,312 1,529
Total long-term debt 2,052,723 1,835,833
Less current portion 70,072 90,447
Long-term portion $ 1,982,651 1,745,386
Minimum    
Debt Instrument [Line Items]    
Interest rate 3.90%  
Maximum    
Debt Instrument [Line Items]    
Interest rate 4.00%  
Unsecured debt    
Debt Instrument [Line Items]    
Interest rate 5.29%  
Long-term debt $ 1,703,000 1,783,000
Cooperative Notes    
Debt Instrument [Line Items]    
Long-term debt $ 300,000 0
4.82% unsecured notes $80 million face amount, due in fiscal 2026 | Unsecured debt    
Debt Instrument [Line Items]    
Interest rate 4.82%  
Face amount $ 80,000  
Long-term debt $ 0 80,000
4.69% unsecured notes $58 million face amount, due in fiscal 2027 | Unsecured debt    
Debt Instrument [Line Items]    
Interest rate 4.69%  
Face amount $ 58,000  
Long-term debt $ 58,000 58,000
3.24% unsecured notes $95 million face amount, due in fiscal 2028 | Unsecured debt    
Debt Instrument [Line Items]    
Interest rate 3.24%  
Face amount $ 95,000  
Long-term debt $ 95,000 95,000
4.74% unsecured notes $95 million face amount, due in fiscal 2028 | Unsecured debt    
Debt Instrument [Line Items]    
Interest rate 4.74%  
Face amount $ 95,000  
Long-term debt $ 95,000 95,000
5.68% unsecured notes $150 million face amount, due in fiscal 2030 | Unsecured debt    
Debt Instrument [Line Items]    
Interest rate 5.68%  
Face amount $ 150,000  
Long-term debt $ 150,000 150,000
3.48% unsecured notes $100 million face amount, due in fiscal 2031 | Unsecured debt    
Debt Instrument [Line Items]    
Interest rate 3.48%  
Face amount $ 100,000  
Long-term debt $ 100,000 100,000
4.89% unsecured notes $100 million face amount, due in fiscal 2031 | Unsecured debt    
Debt Instrument [Line Items]    
Interest rate 4.89%  
Face amount $ 100,000  
Long-term debt $ 100,000 100,000
5.84% unsecured notes $150 million face amount, due in fiscal 2032 | Unsecured debt    
Debt Instrument [Line Items]    
Interest rate 5.84%  
Face amount $ 150,000  
Long-term debt $ 150,000 150,000
3.58% unsecured notes $65 million face amount, due in fiscal 2033 | Unsecured debt    
Debt Instrument [Line Items]    
Interest rate 3.58%  
Face amount $ 65,000  
Long-term debt $ 65,000 65,000
4.71% unsecured notes $100 million face amount, due in fiscal 2033 | Unsecured debt    
Debt Instrument [Line Items]    
Interest rate 4.71%  
Face amount $ 100,000  
Long-term debt $ 100,000 100,000
5.93% unsecured notes $150 million face amount, due in fiscal 2034 | Unsecured debt    
Debt Instrument [Line Items]    
Interest rate 5.93%  
Face amount $ 150,000  
Long-term debt $ 150,000 150,000
3.73% unsecured notes $115 million face amount, due in fiscal 2036 | Unsecured debt    
Debt Instrument [Line Items]    
Interest rate 3.73%  
Face amount $ 115,000  
Long-term debt $ 115,000 115,000
5.40% unsecured notes $125 million face amount, due in fiscal 2036 | Unsecured debt    
Debt Instrument [Line Items]    
Interest rate 5.40%  
Face amount $ 125,000  
Long-term debt $ 125,000 125,000
6.05% unsecured notes $150 million face amount, due in fiscal 2037 | Unsecured debt    
Debt Instrument [Line Items]    
Interest rate 6.05%  
Face amount $ 150,000  
Long-term debt $ 150,000 150,000
6.13% unsecured notes $250 million face amount, due in fiscal 2039 | Unsecured debt    
Debt Instrument [Line Items]    
Interest rate 6.13%  
Face amount $ 250,000  
Long-term debt 250,000 250,000
5.29% unsecured term loan from cooperative and other banks, due in fiscal 2030    
Debt Instrument [Line Items]    
Long-term debt 300,000 0
5.29% unsecured term loan from cooperative and other banks, due in fiscal 2030 | Cooperative Notes    
Debt Instrument [Line Items]    
Long-term debt $ 300,000 $ 0