Borrowings - Additional Information (Details) - USD ($)
$ in Thousands
12 Months Ended
Sep. 28, 2021
Aug. 06, 2021
Jul. 15, 2021
Dec. 31, 2021
Dec. 31, 2020
Debt Instrument [Line Items]          
Mortgage Loan Rate         LIBOR plus 4.25%
Long-term unsecured debt       $ 85,994 $ 73,027
Unamortized debt issuance costs       1,687 732
Senior Notes Due 2023          
Debt Instrument [Line Items]          
Principal balance of Senior Notes repurchased       7 1,172
Principal balance of Senior Notes repurchased purchase price       7 $ 1,115
Debt instrument redemption amount   $ 23,821      
Debt instrument redemption price percentage   100.00%      
Maturity         May 01, 2023
Annual Interest Rate         6.625%
Outstanding balance         $ 23,828
Senior Notes Due 2025          
Debt Instrument [Line Items]          
Principal balance of Senior Notes repurchased       $ 0 369
Principal balance of Senior Notes repurchased purchase price         $ 331
Maturity       Mar. 15, 2025 Mar. 15, 2025
Annual Interest Rate       6.75% 6.75%
Outstanding balance       $ 34,931 $ 34,931
6.000% Senior Notes due 2026          
Debt Instrument [Line Items]          
Debt instrument, issued     $ 37,750    
Net proceeds from after deducting underwriter discounts     $ 36,570    
Secured Debt | McLean SFR Investment, LLC          
Debt Instrument [Line Items]          
Unamortized debt issuance costs       264  
Maturity Oct. 09, 2026        
Annual Interest Rate 2.76%        
Outstanding balance       $ 39,178  
Debt Instrument, collateral description       The loan is secured by a first priority interest in all the assets of McLean SFR and a first priority pledge of the equity interest of McLean SFR. If the outstanding principal balance of the loan is greater than 74% of the fair value of the eligible collateral, McLean SFR is required to either pledge additional collateral or prepay the loan in an amount so that the outstanding principal balance does not exceed 74% of the fair value of the eligible collateral.  
Agency MBS          
Debt Instrument [Line Items]          
Mortgage Loan Rate       LIBOR plus 2.50%  
Loan maturity date       Nov. 15, 2022  
Agency MBS | One-Month LIBOR          
Debt Instrument [Line Items]          
Mortgage loan floor rate       2.50%  
Minimum          
Debt Instrument [Line Items]          
Mortgage loan floor rate         2.00%
Minimum | Agency MBS          
Debt Instrument [Line Items]          
MBS repurchase agreement contract duration       30 days  
Maximum | Secured Debt | McLean SFR Investment, LLC          
Debt Instrument [Line Items]          
Debt instrument, issued $ 150,000        
Percentage of fair value of eligible properties of loan amount 74.00%        
Maximum | Agency MBS          
Debt Instrument [Line Items]          
MBS repurchase agreement contract duration       60 days  
Mortgage loan maturity date extension option       364 days