Quarterly report pursuant to Section 13 or 15(d)

Borrowings - Additional Information (Details)

v3.21.2
Borrowings - Additional Information (Details)
3 Months Ended 6 Months Ended
Jun. 30, 2021
USD ($)
agreement
Feb. 04, 2021
USD ($)
Jun. 30, 2021
USD ($)
agreement
Mar. 31, 2021
USD ($)
Sep. 30, 2020
USD ($)
Jun. 30, 2020
USD ($)
Jun. 30, 2021
USD ($)
agreement
Jun. 30, 2020
USD ($)
Dec. 31, 2020
USD ($)
Dec. 10, 2020
USD ($)
Feb. 20, 2020
USD ($)
Dec. 31, 2019
USD ($)
Dec. 05, 2014
USD ($)
Debt Instrument [Line Items]                          
Net cost basis $ 1,122,361,000   $ 1,122,361,000       $ 1,122,361,000            
Other income     20,000     $ 21,000 2,255,000 $ 1,345,000          
Borrowings under lines of credit 100,000   100,000       100,000   $ 100,000        
Borrowings                          
Debt Instrument [Line Items]                          
Net cost basis $ 1,000,000,000.0   $ 1,000,000,000.0       $ 1,000,000,000.0            
Weighted average interest rate (as percent)     3.73%     3.98% 3.71% 3.98%          
Farm Credit Notes Payable                          
Debt Instrument [Line Items]                          
Interest rate, increase (decrease) (as percent)             28.70% 28.70%          
Basis spread on variable rate, increase (decrease) (as percent)             1.35% 1.35%          
Number of loan agreements | agreement 13   13       13            
Other income       $ 2,200,000 $ 306,000   $ 2,500,000            
MetLife Facility                          
Debt Instrument [Line Items]                          
Face amount of debt                       $ 200,000,000.0  
Maximum borrowing capacity                       75,000,000.0  
MetLife Facility | Notes and bonds payables                          
Debt Instrument [Line Items]                          
Face amount of debt $ 75,000,000   $ 75,000,000       75,000,000       $ 75,000,000.0    
Undrawn commitment $ 38,100,000   $ 38,100,000       $ 38,100,000         $ 21,500,000  
Debt Instrument, Interest Rate, Stated Percentage 2.75%   2.75%       2.75%            
Farmer Mac Facility                          
Debt Instrument [Line Items]                          
Face amount of debt   $ 2,460,000               $ 225,000,000.0     $ 125,000,000.0
Secured debt $ 92,100,000   $ 92,100,000       $ 92,100,000            
Debt Instrument, Interest Rate, Stated Percentage   3.13%                      
Principal amortization term (in years)   25 years                      
Mortgage Notes and Bonds Payable | Notes and bonds payables                          
Debt Instrument [Line Items]                          
Fair value amount 628,600,000   628,600,000       628,600,000            
Secured debt 630,900,000   630,900,000       630,900,000            
Short Term Mortgage Notes And Bonds Payable | Notes and bonds payables                          
Debt Instrument [Line Items]                          
Borrowings under lines of credit 100,000   100,000       100,000            
Golden State Farm Credit Loan                          
Debt Instrument [Line Items]                          
Face amount of debt $ 22,800,000   $ 22,800,000       $ 22,800,000            
Debt Instrument, Interest Rate, Stated Percentage 3.75%   3.75%       3.75%            
Principal amortization term (in years) 10 years