v3.26.3
Income Taxes - Reconciliation of the Statutory Tax Rates to the Effective Tax Rates (Details) - USD ($)
$ in Thousands
12 Months Ended
Aug. 31, 2026
Aug. 31, 2025
Aug. 31, 2024
Amount      
U.S. federal statutory tax rate $ 237,031    
State and local income taxes, net of federal income tax effect 3,452    
Foreign tax effects 3,707    
Tax credits      
Clean fuel production tax credit (39,954)    
Other (8,344)    
Changes in valuation allowances 11,582    
Nontaxable or nondeductible items      
Cooperative §199 A(g) deduction (79,098)    
Patronage earnings (101,964)    
Other 220    
Changes in unrecognized tax benefits 5,610    
Other adjustments 495    
Effective tax rate $ 32,737 $ 16,777 $ (4,872)
Percent      
U.S. federal statutory tax rate 21.00% 21.00% 21.00%
State and local income taxes, net of federal income tax effect 0.30% 2.40% 0.50%
Foreign tax effects 0.30% (3.30%) 1.40%
Tax credits      
Clean fuel production tax credit (3.50%)    
Other (0.70%)    
Tax credits   (4.30%) (6.20%)
Changes in valuation allowances 1.00% 2.80% (0.10%)
Nontaxable or nondeductible items      
Cooperative §199 A(g) deduction (7.00%) (12.90%) (6.80%)
Patronage earnings (9.00%) (7.80%) (12.60%)
Other 0.00%    
Changes in unrecognized tax benefits 0.50% 2.80% 2.70%
Other adjustments 0.00% 2.00% (0.30%)
Effective tax rate 2.90% 2.70% (0.40%)
Tax Jurisdiction of Domicile [Extensible Enumeration] UNITED STATES