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Debt - Mortgage Loans Narrative (Details)
$ in Thousands
12 Months Ended
Dec. 31, 2023
USD ($)
loan
extension
property
Dec. 31, 2022
USD ($)
property
Dec. 31, 2021
USD ($)
Debt Instrument [Line Items]      
Number of real estate properties | property 85,000    
Gross book value $ 21,551,896 $ 20,700,935  
Investments in single-family residential properties, net 17,289,214 17,030,374  
Investments in debt securities, net 86,471 86,980  
Mandatory prepayments 20,491 1,412,249 $ 1,766,865
Level 2      
Debt Instrument [Line Items]      
Investments in debt securities, net $ 86,471 86,980  
Mortgage Loans      
Debt Instrument [Line Items]      
Extension term 1 year    
Debt instrument, loan principal as a percentage of mortgage pool 5.00%    
Mandatory prepayments $ 20,491 $ 1,412,249 $ 1,766,865
Mortgage Loans | Residential Real Estate      
Debt Instrument [Line Items]      
Number of real estate properties | property 10,581 10,712  
Gross book value $ 2,348,044 $ 2,355,083  
Investments in single-family residential properties, net $ 1,779,169 $ 1,859,614  
Mortgage Loans | IH 2018-1, IH 2018-2, IH 2018-3, IH 2018-4      
Debt Instrument [Line Items]      
Number of components | loan 6    
Extension term 1 year    
Mortgage Loans | IH 2018-1, IH 2018-2, IH 2018-3, IH 2018-4 | Minimum      
Debt Instrument [Line Items]      
Initial term 2 years    
Mortgage Loans | IH 2018-1, IH 2018-2, IH 2018-3, IH 2018-4 | Maximum      
Debt Instrument [Line Items]      
Number of extensions | extension 5    
Mortgage Loans | IH1 2017-1      
Debt Instrument [Line Items]      
Number of components | loan 2    
Debt instrument term 10 years    
Fixed interest rate 4.23%    
Mortgage Loans | IH1 2017-1 | Class B Certificates      
Debt Instrument [Line Items]      
Fixed interest rate 4.23%    
Mortgage Loans | IH 2018-4      
Debt Instrument [Line Items]      
Extension term 1 year    
Debt instrument term 2 years    
Mortgage Loans | IH 2018-4 | Each Class Certificates      
Debt Instrument [Line Items]      
Debt instrument, loan principal as a percentage of mortgage pool 5.00%    
Mortgage Loans | IH 2018-4 | Minimum      
Debt Instrument [Line Items]      
Basis spread 1.15%    
Mortgage Loans | IH 2018-4 | Minimum | Secured Overnight Financing Rate      
Debt Instrument [Line Items]      
Basis spread 1.15%    
Mortgage Loans | IH 2018-4 | Maximum      
Debt Instrument [Line Items]      
Number of extensions | extension 5    
Basis spread 1.45%    
Mortgage Loans | IH 2018-4 | Maximum | Secured Overnight Financing Rate      
Debt Instrument [Line Items]      
Basis spread 1.45%