v3.26.1
Related Party Transactions (Details)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2026
USD ($)
Jun. 30, 2025
USD ($)
Jun. 30, 2026
USD ($)
period
Jun. 30, 2025
USD ($)
Dec. 31, 2025
USD ($)
Related Party Transaction [Line Items]          
Annual base management fee percentage     1.50%    
Base management fee to affiliate $ 7,356 $ 6,270 [1] $ 14,457 [1] $ 12,362 [1]  
Base management fee, gross 7,500 6,300 14,900 12,500  
Base management fee to affiliate (Net of fee rebates of $132, $57, $414, and $117, respectively)(1) 132 57 $ 414 117  
Incentive fee rate     25.00%    
Incentive fee hurdle rate fixed     9.00%    
Incentive fee hurdle rate floating     3.00%    
Minimum percentage of incentive fee to be paid in share     10.00%    
Termination Fee, Number Of Periods | period     2    
Termination Fee, Period     12 months    
Expense Reimbursement Period     60 days    
Expense Reimbursement - Manager     $ 14,500 9,200  
Investments in unconsolidated entities, at fair value(1) [2] 402,259   402,259   $ 312,421
Reverse repurchase agreements 3,064,277   3,064,277   2,655,444
Unpaid Principal Balance 17,097,672   17,097,672   16,000,731
Related Party Transaction, Purchases from Related Party 900   3,200 900  
Loans, at fair value(1)(2) [2],[3] 17,874,430   17,874,430   16,640,647
Incentive Fee Expense 919 0 20,141 4,533  
Corporate loan [Member]          
Related Party Transaction [Line Items]          
Unpaid Principal Balance 53,393   53,393   25,767
Loans, at fair value(1)(2) 52,575   52,575   25,366
Consumer loans          
Related Party Transaction [Line Items]          
Unpaid Principal Balance 125   125   190
Loans, at fair value(1)(2) 108   108   159
Related Party-Consumer Loans Titled in Name of Related Party          
Related Party Transaction [Line Items]          
Fair value of loans held in related party trust 53,200   53,200   53,100
Affiliated Entity [Member]          
Related Party Transaction [Line Items]          
Accounts payable and accrued expenses 7,900   7,900   2,400
Mortgage Originator          
Related Party Transaction [Line Items]          
Investments in unconsolidated entities, at fair value(1) 1,900   1,900   2,300
Purchasing Entity          
Related Party Transaction [Line Items]          
Fair value of loans held in related party trust 100   100   200
Related party trust - Residential Mortgage Loans and REO          
Related Party Transaction [Line Items]          
Fair value of loans held in related party trust 2,000,000   2,000,000   2,100,000
Mortgage Originator          
Related Party Transaction [Line Items]          
Investments in unconsolidated entities, at fair value(1) 56,000   56,000   52,600
Related Party Residential Mortgage Originator          
Related Party Transaction [Line Items]          
Investments in unconsolidated entities, at fair value(1) 3,000   3,000   1,500
RTL Originator          
Related Party Transaction [Line Items]          
Investments in unconsolidated entities, at fair value(1) 600   600   600
Promissory Note to Equity Method Investee, the Residential Originator | Equity Method Investee | Corporate loan [Member]          
Related Party Transaction [Line Items]          
Unpaid Principal Balance $ 9,800   $ 9,800   14,000
Promissory Note to Equity Method Investee, the Residential Originator | Equity Method Investee | Corporate loan [Member] | Interest rate through May 2025          
Related Party Transaction [Line Items]          
Investment Interest Rate 10.00%   10.00%    
Promissory Note to Equity Method Investee, the Residential Originator | Equity Method Investee | Corporate loan [Member] | Interest rate through June 2025 through December 2029          
Related Party Transaction [Line Items]          
Investment Interest Rate 15.00%   15.00%    
Promissory Note to Equity Method Investee, the Consumer Originator | Equity Method Investee | Consumer loans          
Related Party Transaction [Line Items]          
Unpaid Principal Balance $ 800   $ 800   200
Investment Interest Rate 4.00%   4.00%    
Commercial mortgage loans and REO          
Related Party Transaction [Line Items]          
Reverse repurchase agreements $ 504,600   $ 504,600   383,200
Mortgage-related Commercial | Corporate equity securities          
Related Party Transaction [Line Items]          
Fair Value 127,300   127,300   101,100
Warehouse facilities - CLO securitizations          
Related Party Transaction [Line Items]          
Base management fee to affiliate (Net of fee rebates of $132, $57, $414, and $117, respectively)(1) 24 43 51 100  
Affiliated REIT          
Related Party Transaction [Line Items]          
Base management fee to affiliate (Net of fee rebates of $132, $57, $414, and $117, respectively)(1) 100 $ 15 400 $ 25  
Investments in Affiliates, Subsidiaries, Associates, and Joint Ventures, Fair Value Disclosure 27,800   27,800   26,500
Purchase Commitment, Amount Contributed 25,000   25,000    
Participation in multi-borrower financing facility [Member]          
Related Party Transaction [Line Items]          
Outstanding debt of related party $ 1,005,000   $ 1,005,000   $ 872,600
[1] See Note 16 for further details on management fee rebates.
[2] 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.
[3] Includes assets pledged as collateral to counterparties. See Note 14 for additional details on the Company's borrowings and related collateral.