v3.26.3
Long-Term Debt - Additional Information (Details) - USD ($)
$ in Thousands
3 Months Ended 12 Months Ended
Sep. 21, 2026
Aug. 31, 2026
May 31, 2026
Sep. 08, 2026
Long-term debt        
Long-term debt   $ 28,461,438 $ 28,345,934  
Secured Debt        
Long-term debt        
Long-term debt   15,654,028 15,753,118  
Total collateral trust bonds        
Long-term debt        
Long-term debt   6,503,530 6,502,403  
Guaranteed Underwriter Program notes payable        
Long-term debt        
Long-term debt   5,284,047 5,338,722  
Available under committed loan facilities   $ 1,800,000    
Maximum percentage of patronage capital distribution allowed   5.00%    
Guaranteed Underwriter Program notes payable | Subsequent Event        
Long-term debt        
Proceeds from issuance of secured debt $ 300,000      
Unsecured Debt        
Long-term debt        
Long-term debt   $ 12,807,000 $ 12,593,000  
Medium-Term Notes        
Long-term debt        
Repayments of unsecured debt   621,000    
Medium-Term Notes | Subsequent Event        
Long-term debt        
principal amount       $ 400,000
Medium-Term Notes | Institutional Investor        
Long-term debt        
Debt instrument, face amount   800,000    
Medium-Term Notes | Retail Investors        
Long-term debt        
Debt instrument, face amount   1,000    
5.0 Percent Collateral Trust Bonds | Total collateral trust bonds        
Long-term debt        
Repayments of secured debt   4,000    
Committed Loan Facility | Guaranteed Underwriter Program notes payable        
Long-term debt        
Repayments of secured debt   55,000    
Committed Loan Facility | Guaranteed Underwriter Program notes payable | Subsequent Event        
Long-term debt        
Maximum borrowing capacity       $ 455,000
Farmer Mac Notes Payable | Farmer Mac:        
Long-term debt        
Long-term debt   3,866,000    
Repayments of secured debt   46,000    
Available under committed loan facilities   2,634,000    
Maximum borrowing capacity   $ 6,500,000    
Debt instrument, renewal periods   1 year    
Debt instrument, termination written notice, term   60 days    
Medium-term Notes, Fixed Rate | Medium-Term Notes        
Long-term debt        
Proceeds from issuance of unsecured debt   $ 500,000    
Debt instrument, term   5 years    
Average fixed interest rate   5.00%    
medium-term Notes Due 2026 | Medium-Term Notes | Subsequent Event        
Long-term debt        
Stated interest rate       5.60%
Medium-term Notes, Floating Rate | Medium-Term Notes        
Long-term debt        
Proceeds from issuance of unsecured debt   $ 300,000    
Debt instrument, term   18 months    
Debt | Credit Availability Concentration Risk | Secured Debt        
Long-term debt        
Concentration risk, percentage   55.00% 56.00%  
Debt | Credit Availability Concentration Risk | Unsecured Debt        
Long-term debt        
Concentration risk, percentage   45.00% 44.00%  
Debt | Credit Availability Concentration Risk | Long-term debt        
Long-term debt        
Concentration risk, percentage   80.00% 79.00%