Quarterly report pursuant to Section 13 or 15(d)

Notes Payable - Additional Information (Details)

v3.22.1
Notes Payable - Additional Information (Details) - USD ($)
1 Months Ended 3 Months Ended
Jan. 31, 2014
Mar. 31, 2022
Feb. 28, 2022
Dec. 31, 2021
Mar. 01, 2021
Feb. 28, 2021
Jul. 31, 2020
Jun. 30, 2020
Jul. 31, 2017
Term Note                  
Debt Instrument [Line Items]                  
Line of credit facility, maximum borrowing capacity   $ 175,000,000              
Maximum amount of committed to increase   125,000,000       $ 76,500,000      
Outstanding borrowings   $ 125,000,000   $ 125,000,000 $ 76,500,000        
Periodic payment, principal, percentage of outstanding balance   5.00%              
Federal Funds Rate | Term Note                  
Debt Instrument [Line Items]                  
Debt instrument variable rate   0.50%              
Eurodollar Base Rate | Term Note                  
Debt Instrument [Line Items]                  
Debt instrument variable rate   1.00%              
Government National Mortgage Association | Revolving Credit Facility                  
Debt Instrument [Line Items]                  
Unused facility fee percentage 70.00%                
Line of credit facility, maximum borrowing capacity               $ 135,000,000  
Maximum amount of committed to increase               $ 200,000,000  
Outstanding borrowings   $ 0   60,000,000          
Government National Mortgage Association | LIBOR | Revolving Credit Facility                  
Debt Instrument [Line Items]                  
Line of credit, floor interest rate 4.50%                
Federal Home Loan Mortgage Corporation | Revolving Credit Facility                  
Debt Instrument [Line Items]                  
Unused facility fee percentage   50.00%              
Line of credit facility, maximum borrowing capacity     $ 100,000,000       $ 65,000,000   $ 25,000,000
Outstanding borrowings   $ 35,000,000   $ 65,000,000          
Federal Home Loan Mortgage Corporation | LIBOR | Revolving Credit Facility                  
Debt Instrument [Line Items]                  
Line of credit, floor interest rate   0.50%