Quarterly report [Sections 13 or 15(d)]

BORROWINGS - Narrative (Details)

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BORROWINGS - Narrative (Details) - USD ($)
3 Months Ended 12 Months Ended
Mar. 31, 2025
Sep. 30, 2024
Mar. 31, 2024
Dec. 31, 2024
Debt Instrument [Line Items]        
Net cost basis $ 1,204,803,000      
Other income 1,952,000   $ 2,428,000  
Borrowings under lines of credit 200,000     $ 3,600,000
Expected reclassification as reduction to interest expense 1,600,000      
Borrowings        
Debt Instrument [Line Items]        
Net cost basis $ 1,000,000,000.0      
Weighted average interest rate 3.79%   3.81%  
Farm Credit Notes Payable        
Debt Instrument [Line Items]        
Reduction in interest rate       21.90%
Reduction in basis points       1.01%
Other income $ 1,700,000 $ 108,000    
MetLife Lines of Credit | Line of Credit        
Debt Instrument [Line Items]        
Face amount of debt 75,000,000      
2020 MetLife Term Note | Notes and Bonds Payables        
Debt Instrument [Line Items]        
Face amount of debt 75,000,000      
2022 MetLife Term Note | Notes and Bonds Payables        
Debt Instrument [Line Items]        
Face amount of debt 100,000,000      
Farmer Mac Facility        
Debt Instrument [Line Items]        
Face amount of debt $ 225,000,000.0      
Debt instrument, term 10 years      
Secured debt $ 32,800,000      
Mortgage Notes and Bonds Payable | Notes and Bonds Payables        
Debt Instrument [Line Items]        
Secured debt 500,800,000      
Fair value amount 472,000,000.0      
Short Term Mortgage Notes And Bonds Payable | Notes and Bonds Payables        
Debt Instrument [Line Items]        
Borrowings under lines of credit $ 200,000