v3.26.1
Securitization Transactions (RM BS) (Details) - USD ($)
$ in Thousands
6 Months Ended
Jun. 30, 2026
Dec. 31, 2025
Jun. 30, 2025
[1]
Dec. 31, 2024
Securitization Transactions [Line Items]        
Loans, at fair value(1)(2) [1],[2] $ 17,874,430 $ 16,640,647    
Restricted cash 42,373 [1] 136,297 [1] $ 19,617 $ 16,561
Other secured borrowings, at fair value(1) [1] 3,451,333 2,945,578    
Investment related receivables(1) [1] 190,166 177,208    
Proprietary Reverse Mortgage Loan Securitization | February 2026        
Securitization Transactions [Line Items]        
Notes Issued by Proprietary Reverse Mortgage Loan Securitization Trust 260,440      
Proprietary Reverse Mortgage Loan Securitization | February 2026 | The Company [Member]        
Securitization Transactions [Line Items]        
Proprietary Reverse Mortgage Loans Transferred into Securitization Trust 223,023      
Proprietary Reverse Mortgage Loan Securitization | May 2025        
Securitization Transactions [Line Items]        
Notes Issued by Proprietary Reverse Mortgage Loan Securitization Trust 242,700      
Proprietary Reverse Mortgage Loan Securitization | May 2025 | The Company [Member]        
Securitization Transactions [Line Items]        
Proprietary Reverse Mortgage Loans Transferred into Securitization Trust 198,359      
Proprietary Reverse Mortgage Loan Securitization | May 2026        
Securitization Transactions [Line Items]        
Notes Issued by Proprietary Reverse Mortgage Loan Securitization Trust 274,450      
Proprietary Reverse Mortgage Loan Securitization | May 2026 | The Company [Member]        
Securitization Transactions [Line Items]        
Proprietary Reverse Mortgage Loans Transferred into Securitization Trust 229,422      
Proprietary Reverse Mortgage Loan Securitization | June 2026        
Securitization Transactions [Line Items]        
Notes Issued by Proprietary Reverse Mortgage Loan Securitization Trust 183,220      
Proprietary Reverse Mortgage Loan Securitization | June 2026 | The Company [Member]        
Securitization Transactions [Line Items]        
Proprietary Reverse Mortgage Loans Transferred into Securitization Trust 151,182      
Residential mortgage loans        
Securitization Transactions [Line Items]        
Loans, at fair value(1)(2) 3,559,269 3,643,094    
Consolidated Entities [Member] | Non-QM loan securitization        
Securitization Transactions [Line Items]        
Other secured borrowings, at fair value(1) 1,157,668 1,236,077    
Investment related receivables(1) 3,242 4,886    
Consolidated Entities [Member] | Proprietary Reverse Mortgage Loan Securitization        
Securitization Transactions [Line Items]        
Other secured borrowings, at fair value(1) 1,985,145 1,396,607    
Consolidated Entities [Member] | Residential mortgage loans | Securitized loans [Member] | Non-QM loan securitization        
Securitization Transactions [Line Items]        
Loans, at fair value(1)(2) 1,270,842 1,354,189    
Consolidated Entities [Member] | Proprietary reverse mortgage loans | Securitized loans [Member] | Proprietary Reverse Mortgage Loan Securitization        
Securitization Transactions [Line Items]        
Loans, at fair value(1)(2) 1,988,167 1,397,835    
Restricted cash 30,460 26,013    
Investment related receivables(1) $ 30,781 $ 19,893    
[1] Ellington Financial Inc.'s Consolidated Balance Sheets include assets and liabilities of variable interest entities it has consolidated. See Note 12 for additional details on Ellington Financial Inc.'s consolidated variable interest entities.
[2] Includes assets pledged as collateral to counterparties. See Note 14 for additional details on the Company's borrowings and related collateral.