v3.26.1
Investment in Loans (Schedule of Investments in Loans) (Details) - USD ($)
$ in Thousands
 3 Months Ended
Mar. 31, 2025
Mar. 31, 2026
Dec. 31, 2025
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Current Principal/Notional Amount   $ 16,647,345 $ 16,000,731
Fair Value [1],[2]   17,393,161 16,640,647
Residential mortgage loans      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Current Principal/Notional Amount   3,863,111 3,739,813
Fair Value   3,748,165 3,643,094
Commercial mortgage loans      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Current Principal/Notional Amount   623,924 648,592
Fair Value   623,196 640,712
Consumer loans      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Current Principal/Notional Amount   154 190
Fair Value   135 159
Corporate loan [Member]      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Current Principal/Notional Amount   32,138 25,767
Fair Value   31,479 25,366
Reverse mortgage loans      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Current Principal/Notional Amount   12,128,018 11,586,369
Fair Value   $ 12,990,186 $ 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 $ 97,400    
[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.