v3.26.1
Securitization Transactions (Schedule of Residential Loan Securitizations) (Details) - USD ($)
$ in Thousands
6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Dec. 31, 2025
Dec. 31, 2024
Securitization Transactions [Line Items]        
Securities, at fair value(1)(2) [1],[2] $ 1,230,743   $ 1,034,882  
Loans, at fair value(1)(2) [1],[2] 17,874,430   16,640,647  
Investment related receivables(1) [1] 190,166   177,208  
Other secured borrowings, at fair value(1) [1] 3,451,333   2,945,578  
Cash and Cash Equivalent 247,473 [1] $ 211,013 [1] 201,893 [1] $ 192,387
Restricted cash 42,373 [1] 19,617 [1] 136,297 [1] $ 16,561
Broker-Dealer, Payable to Other Broker-Dealer and Clearing Organization 40,721   36,092  
Residential mortgage loans        
Securitization Transactions [Line Items]        
Loans, at fair value(1)(2) 3,559,269   3,643,094  
Non-QM loan securitization | Consolidated Entities [Member]        
Securitization Transactions [Line Items]        
Investment related receivables(1) 3,242   4,886  
Other secured borrowings, at fair value(1) 1,157,668   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) 1,270,842   1,354,189  
European Residential Loan Securitization | Consolidated Entities [Member]        
Securitization Transactions [Line Items]        
Investment related receivables(1) 3,515   2,170  
Other secured borrowings, at fair value(1) 24,800   27,600  
Cash and Cash Equivalent 904   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) 24,737   27,536  
Broker-Dealer, Payable to Other Broker-Dealer and Clearing Organization 4,292   3,639  
CES Loan Securitization, Not Consolidated | February 2025        
Securitization Transactions [Line Items]        
Notes Issued by Securitization Trust   268,902    
CES Loan Securitization, Not Consolidated | June 2026        
Securitization Transactions [Line Items]        
Notes Issued by Securitization Trust 368,533      
CES Loan Securitization, Not Consolidated | March 2025        
Securitization Transactions [Line Items]        
Notes Issued by Securitization Trust   290,116    
CES Loan Securitization, Not Consolidated | June 2025        
Securitization Transactions [Line Items]        
Notes Issued by Securitization Trust   281,029    
CES Loan Securitization, Not Consolidated | January 2026        
Securitization Transactions [Line Items]        
Notes Issued by Securitization Trust 221,814      
CES Loan Securitization, Co-Sponsor | January 2025        
Securitization Transactions [Line Items]        
Notes Issued by Securitization Trust   535,777    
CES Loan Securitization, Co-Sponsor | April 2025        
Securitization Transactions [Line Items]        
Notes Issued by Securitization Trust   500,318    
CES Loan Securitization, Co-Sponsor | May 2025        
Securitization Transactions [Line Items]        
Notes Issued by Securitization Trust   502,665    
CES Loan Securitization, Co-Sponsor | June 2026        
Securitization Transactions [Line Items]        
Notes Issued by Securitization Trust   706,046    
Non-QM loan securitization, not consolidated        
Securitization Transactions [Line Items]        
Securities, at fair value(1)(2) 263,300   $ 183,100  
Non-QM loan securitization, not consolidated | January 2025        
Securitization Transactions [Line Items]        
Notes Issued by Securitization Trust   269,632    
Non-QM loan securitization, not consolidated | February 2025        
Securitization Transactions [Line Items]        
Notes Issued by Securitization Trust   259,707    
Non-QM loan securitization, not consolidated | April 2025        
Securitization Transactions [Line Items]        
Notes Issued by Securitization Trust   345,788    
Non-QM loan securitization, not consolidated | June 2026        
Securitization Transactions [Line Items]        
Notes Issued by Securitization Trust 490,049      
Non-QM loan securitization, not consolidated | June 2025        
Securitization Transactions [Line Items]        
Notes Issued by Securitization Trust   $ 282,772    
Non-QM loan securitization, not consolidated | February 2026 | EFMT 2026-NQM1        
Securitization Transactions [Line Items]        
Notes Issued by Securitization Trust 566,689      
Non-QM loan securitization, not consolidated | February 2026 | EFMT 2026-INV2        
Securitization Transactions [Line Items]        
Notes Issued by Securitization Trust 409,142      
Non-QM loan securitization, not consolidated | March 2026        
Securitization Transactions [Line Items]        
Notes Issued by Securitization Trust 508,501      
Non-QM loan securitization, not consolidated | April 2026        
Securitization Transactions [Line Items]        
Notes Issued by Securitization Trust 546,798      
Non-QM loan securitization, not consolidated | May 2026        
Securitization Transactions [Line Items]        
Notes Issued by Securitization Trust 504,158      
Agency-eligible loan securitization, not consolidated | June 2026        
Securitization Transactions [Line Items]        
Notes Issued by Securitization Trust 285,760      
Agency-eligible loan securitization, not consolidated | February 2026        
Securitization Transactions [Line Items]        
Notes Issued by Securitization Trust 325,740      
Agency-eligible loan securitization, not consolidated | April 2026        
Securitization Transactions [Line Items]        
Notes Issued by Securitization Trust 349,040      
Agency-eligible loan securitization, not consolidated | May 2026        
Securitization Transactions [Line Items]        
Notes Issued by Securitization Trust $ 337,945      
[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.