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Repurchase Agreements - Borrowings Under Financing Arrangements and Associated Assets Pledged as Collateral (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]        
Outstanding Repurchase Agreements $ 1,862,063 $ 50,077    
Total carrying value 2,471,113 737,023    
Fair Value of Collateral Pledged $ 3,084,303 $ 3,525,080 $ 3,575,601 $ 3,049,166
Average days to maturity 46 days 9 days    
Single-Family Rental - Operating        
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]        
Fair Value of Collateral Pledged $ 146,700      
Residential Loans        
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]        
Fair Value of Collateral Pledged 658,300 $ 867,000    
Residential loans        
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]        
Maximum Aggregate Uncommitted Principal Amount 2,225,000 2,030,879    
Outstanding Repurchase Agreements 611,055 688,487    
Net Deferred Finance Costs (2,005) (1,541)    
Fair Value of Collateral Pledged $ 805,082 $ 867,033    
Weighted Average Rate 7.87% 6.65%    
Average days to maturity 13 years 10 months 20 days 16 years 8 months 8 days    
Residential loans | Repurchase agreements        
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]        
Total carrying value $ 609,050 $ 686,946    
Residential loans | Repurchase Agreement, Non Mark-to Market        
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]        
Outstanding Repurchase Agreements $ 179,100 $ 446,800    
Weighted Average Rate 8.19% 6.77%    
Average days to maturity 14 months 24 months