v3.26.1
Securitization Transactions (Schedule of Residential Loan Securitizations) (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2025
Mar. 31, 2026
Dec. 31, 2025
Dec. 31, 2024
Securitization Transactions [Line Items]        
Securities, at fair value(1)(2) [1],[2]   $ 1,136,825 $ 1,034,882  
Loans, at fair value(1)(2) [1],[2]   17,393,161 16,640,647  
Investment related receivables(1) [1]   239,406 177,208  
Other secured borrowings, at fair value(1) [1]   3,125,332 2,945,578  
Cash and Cash Equivalents, at Carrying Value $ 203,288 [1] 163,224 [1] 201,893 [1] $ 192,387
Restricted cash 14,027 [1] 28,296 [1] 136,297 [1] $ 16,561
Broker-Dealer, Payable to Other Broker-Dealer and Clearing Organization   55,441 36,092  
Residential mortgage loans        
Securitization Transactions [Line Items]        
Loans, at fair value(1)(2)   3,748,165 3,643,094  
Non-QM loan securitization | Consolidated Entities [Member]        
Securitization Transactions [Line Items]        
Investment related receivables(1)   8,545 4,886  
Other secured borrowings, at fair value(1)   1,199,060 1,236,077  
Non-QM loan securitization | Consolidated Entities [Member] | Residential mortgage loans | Securitized loans [Member]        
Securitization Transactions [Line Items]        
Loans, at fair value(1)(2)   1,310,565 1,354,189  
European Residential Loan Securitization | Consolidated Entities [Member]        
Securitization Transactions [Line Items]        
Investment related receivables(1)   2,242 2,170  
Other secured borrowings, at fair value(1)   25,769 27,600  
Cash and Cash Equivalents, at Carrying Value   1,945 586  
Restricted cash   0 1,012  
European Residential Loan Securitization | Consolidated Entities [Member] | Residential mortgage loans | Securitized loans [Member]        
Securitization Transactions [Line Items]        
Loans, at fair value(1)(2)   25,707 27,536  
Broker-Dealer, Payable to Other Broker-Dealer and Clearing Organization   $ 4,061 $ 3,639  
CES Loan Securitization, Not Consolidated | February 2025        
Securitization Transactions [Line Items]        
Notes Issued by CES Securitization Trust 268,902      
CES Loan Securitization, Co-Sponsor | January 2025        
Securitization Transactions [Line Items]        
Notes Issued by CES Securitization Trust $ 535,777      
[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.