v3.26.1
Investment in Loans (Schedule of Investments in Loans) (Details) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2025
Jun. 30, 2025
Jun. 30, 2026
Dec. 31, 2025
Accounts, Notes, Loans and Financing Receivable [Line Items]        
Current Principal/Notional Amount     $ 17,097,672 $ 16,000,731
Fair Value [1],[2]     17,874,430 16,640,647
Residential mortgage loans        
Accounts, Notes, Loans and Financing Receivable [Line Items]        
Current Principal/Notional Amount     3,674,683 3,739,813
Fair Value     3,559,269 3,643,094
Commercial mortgage loans        
Accounts, Notes, Loans and Financing Receivable [Line Items]        
Current Principal/Notional Amount     680,967 648,592
Fair Value     675,066 640,712
Consumer loans        
Accounts, Notes, Loans and Financing Receivable [Line Items]        
Current Principal/Notional Amount     125 190
Fair Value     108 159
Corporate loan [Member]        
Accounts, Notes, Loans and Financing Receivable [Line Items]        
Current Principal/Notional Amount     53,393 25,767
Fair Value     52,575 25,366
Reverse mortgage loans        
Accounts, Notes, Loans and Financing Receivable [Line Items]        
Current Principal/Notional Amount     12,688,504 11,586,369
Fair Value     $ 13,587,412 $ 12,331,316
Proprietary reverse mortgage loans        
Accounts, Notes, Loans and Financing Receivable [Line Items]        
Transfer to held-for-investment from held-for-sale - Loan UPB $ 103,400 $ 200,700    
[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.