Quarterly report pursuant to Section 13 or 15(d)

Borrowings - Additional Information (Details)

v3.20.1
Borrowings - Additional Information (Details)
3 Months Ended 12 Months Ended
Mar. 31, 2020
USD ($)
debt_instrument
Agreement
Mar. 31, 2019
USD ($)
Dec. 31, 2019
USD ($)
Dec. 05, 2014
USD ($)
Debt Instrument [Line Items]        
Net cost basis $ 801,510,000      
Other income 1,324,000 $ 826,000    
Borrowings under lines of credit 100,000   $ 100,000  
Borrowings        
Debt Instrument [Line Items]        
Net cost basis $ 794,000,000      
Weighted average interest rate 3.98% 3.93%    
Farm Credit Notes Payable        
Debt Instrument [Line Items]        
Interest rate, increase (decrease)     (20.40%)  
Basis spread on variable rate, increase (decrease) (0.98%)      
Number of loan agreements | Agreement 10      
Other income $ 1,300,000      
MetLife Facility        
Debt Instrument [Line Items]        
Face amount of debt     $ 200,000,000  
Maximum borrowing capacity     75,000,000  
MetLife Facility | Notes and bonds payables        
Debt Instrument [Line Items]        
Face amount of debt 75,000,000      
Undrawn commitment 75,000,000   $ 21,530,000  
Mortgage notes and bonds payable | Notes and bonds payables        
Debt Instrument [Line Items]        
Fair value amount 481,300,000      
Secured debt 480,600,000      
Short Term Mortgage Notes And Bonds Payable | Notes and bonds payables        
Debt Instrument [Line Items]        
Borrowings under lines of credit $ 100,000      
Farmer Mac Bonds Payable        
Debt Instrument [Line Items]        
Face amount of debt       $ 125,000,000
Farmer Mac Bonds Payable Issued in Current Period        
Debt Instrument [Line Items]        
Number of bonds | debt_instrument 1      
Extinguishment of debt, amount $ 8,100,000