v3.26.1
Securitization Transactions (Schedule of Non-Consolidated Non-QM Securitizations (Details) - USD ($)
$ in Thousands
6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Dec. 31, 2025
Securitization Transactions [Line Items]      
Securities, at fair value(1)(2) [1],[2] $ 1,230,743   $ 1,034,882
Co-Sponsored Securitization      
Securitization Transactions [Line Items]      
Securities, at fair value(1)(2) 179,200   161,200
Non-QM loan securitization, not consolidated      
Securitization Transactions [Line Items]      
Securities, at fair value(1)(2) 263,300   $ 183,100
February 2025 | Non-QM loan securitization, not consolidated      
Securitization Transactions [Line Items]      
Notes Issued by Securitization Trust   $ 259,707  
February 2025 | CES Loan Securitization, Not Consolidated      
Securitization Transactions [Line Items]      
Notes Issued by Securitization Trust   268,902  
February 2025 | The Company [Member] | Non-QM loan securitization, not consolidated      
Securitization Transactions [Line Items]      
Closed End Second Lien Loans Transferred into Securitization Trust   148,189  
February 2025 | The Company [Member] | CES Loan Securitization, Not Consolidated      
Securitization Transactions [Line Items]      
Closed End Second Lien Loans Transferred into Securitization Trust   185,273  
February 2025 | Co-Participant(s) | Non-QM loan securitization, not consolidated      
Securitization Transactions [Line Items]      
Closed End Second Lien Loans Transferred into Securitization Trust   111,518  
February 2025 | Co-Participant(s) | CES Loan Securitization, Not Consolidated      
Securitization Transactions [Line Items]      
Closed End Second Lien Loans Transferred into Securitization Trust   83,629  
March 2025 | CES Loan Securitization, Not Consolidated      
Securitization Transactions [Line Items]      
Notes Issued by Securitization Trust   290,116  
March 2025 | The Company [Member] | CES Loan Securitization, Not Consolidated      
Securitization Transactions [Line Items]      
Closed End Second Lien Loans Transferred into Securitization Trust   166,527  
March 2025 | Co-Participant(s) | CES Loan Securitization, Not Consolidated      
Securitization Transactions [Line Items]      
Closed End Second Lien Loans Transferred into Securitization Trust   123,589  
January 2025 | Non-QM loan securitization, not consolidated      
Securitization Transactions [Line Items]      
Notes Issued by Securitization Trust   269,632  
January 2025 | The Company [Member] | Non-QM loan securitization, not consolidated      
Securitization Transactions [Line Items]      
Closed End Second Lien Loans Transferred into Securitization Trust   193,569  
January 2025 | Co-Participant(s) | Non-QM loan securitization, not consolidated      
Securitization Transactions [Line Items]      
Closed End Second Lien Loans Transferred into Securitization Trust   76,063  
April 2025 | Non-QM loan securitization, not consolidated      
Securitization Transactions [Line Items]      
Notes Issued by Securitization Trust   345,788  
April 2025 | The Company [Member] | Non-QM loan securitization, not consolidated      
Securitization Transactions [Line Items]      
Closed End Second Lien Loans Transferred into Securitization Trust   196,961  
April 2025 | Co-Participant(s) | Non-QM loan securitization, not consolidated      
Securitization Transactions [Line Items]      
Closed End Second Lien Loans Transferred into Securitization Trust   148,827  
June 2025 | Non-QM loan securitization, not consolidated      
Securitization Transactions [Line Items]      
Notes Issued by Securitization Trust   282,772  
June 2025 | CES Loan Securitization, Not Consolidated      
Securitization Transactions [Line Items]      
Notes Issued by Securitization Trust   281,029  
June 2025 | The Company [Member] | Non-QM loan securitization, not consolidated      
Securitization Transactions [Line Items]      
Closed End Second Lien Loans Transferred into Securitization Trust   182,020  
June 2025 | The Company [Member] | CES Loan Securitization, Not Consolidated      
Securitization Transactions [Line Items]      
Closed End Second Lien Loans Transferred into Securitization Trust   169,882  
June 2025 | Co-Participant(s) | Non-QM loan securitization, not consolidated      
Securitization Transactions [Line Items]      
Closed End Second Lien Loans Transferred into Securitization Trust   100,752  
June 2025 | Co-Participant(s) | CES Loan Securitization, Not Consolidated      
Securitization Transactions [Line Items]      
Closed End Second Lien Loans Transferred into Securitization Trust   $ 111,147  
January 2026 | CES Loan Securitization, Not Consolidated      
Securitization Transactions [Line Items]      
Notes Issued by Securitization Trust 221,814    
January 2026 | The Company [Member] | CES Loan Securitization, Not Consolidated      
Securitization Transactions [Line Items]      
Closed End Second Lien Loans Transferred into Securitization Trust 85,274    
January 2026 | Co-Participant(s) | CES Loan Securitization, Not Consolidated      
Securitization Transactions [Line Items]      
Closed End Second Lien Loans Transferred into Securitization Trust 136,540    
February 2026 | Non-QM loan securitization, not consolidated | EFMT 2026-NQM1      
Securitization Transactions [Line Items]      
Notes Issued by Securitization Trust 566,689    
February 2026 | Non-QM loan securitization, not consolidated | EFMT 2026-INV2      
Securitization Transactions [Line Items]      
Notes Issued by Securitization Trust 409,142    
February 2026 | Agency-eligible loan securitization, not consolidated      
Securitization Transactions [Line Items]      
Notes Issued by Securitization Trust 325,740    
February 2026 | The Company [Member] | EFMT 2026-AE1      
Securitization Transactions [Line Items]      
Cash Transferred into Securitization Trust 36,400    
February 2026 | The Company [Member] | Non-QM loan securitization, not consolidated | EFMT 2026-NQM1      
Securitization Transactions [Line Items]      
Closed End Second Lien Loans Transferred into Securitization Trust 478,683    
February 2026 | The Company [Member] | Non-QM loan securitization, not consolidated | EFMT 2026-INV2      
Securitization Transactions [Line Items]      
Closed End Second Lien Loans Transferred into Securitization Trust 295,007    
February 2026 | The Company [Member] | Agency-eligible loan securitization, not consolidated      
Securitization Transactions [Line Items]      
Closed End Second Lien Loans Transferred into Securitization Trust 231,322    
February 2026 | Co-Participant(s) | Non-QM loan securitization, not consolidated | EFMT 2026-NQM1      
Securitization Transactions [Line Items]      
Closed End Second Lien Loans Transferred into Securitization Trust 88,006    
February 2026 | Co-Participant(s) | Non-QM loan securitization, not consolidated | EFMT 2026-INV2      
Securitization Transactions [Line Items]      
Closed End Second Lien Loans Transferred into Securitization Trust 114,135    
February 2026 | Co-Participant(s) | Agency-eligible loan securitization, not consolidated      
Securitization Transactions [Line Items]      
Closed End Second Lien Loans Transferred into Securitization Trust 94,418    
March 2026 | Non-QM loan securitization, not consolidated      
Securitization Transactions [Line Items]      
Notes Issued by Securitization Trust 508,501    
March 2026 | The Company [Member] | Non-QM loan securitization, not consolidated      
Securitization Transactions [Line Items]      
Closed End Second Lien Loans Transferred into Securitization Trust 301,760    
March 2026 | Co-Participant(s) | Non-QM loan securitization, not consolidated      
Securitization Transactions [Line Items]      
Closed End Second Lien Loans Transferred into Securitization Trust 206,741    
April 2026 | Non-QM loan securitization, not consolidated      
Securitization Transactions [Line Items]      
Notes Issued by Securitization Trust 546,798    
April 2026 | Agency-eligible loan securitization, not consolidated      
Securitization Transactions [Line Items]      
Notes Issued by Securitization Trust 349,040    
April 2026 | The Company [Member] | Non-QM loan securitization, not consolidated      
Securitization Transactions [Line Items]      
Closed End Second Lien Loans Transferred into Securitization Trust 356,661    
April 2026 | The Company [Member] | Agency-eligible loan securitization, not consolidated      
Securitization Transactions [Line Items]      
Closed End Second Lien Loans Transferred into Securitization Trust 254,867    
April 2026 | Co-Participant(s) | Non-QM loan securitization, not consolidated      
Securitization Transactions [Line Items]      
Closed End Second Lien Loans Transferred into Securitization Trust 190,137    
April 2026 | Co-Participant(s) | Agency-eligible loan securitization, not consolidated      
Securitization Transactions [Line Items]      
Closed End Second Lien Loans Transferred into Securitization Trust 94,173    
May 2026 | Non-QM loan securitization, not consolidated      
Securitization Transactions [Line Items]      
Notes Issued by Securitization Trust 504,158    
May 2026 | Agency-eligible loan securitization, not consolidated      
Securitization Transactions [Line Items]      
Notes Issued by Securitization Trust 337,945    
May 2026 | The Company [Member] | Non-QM loan securitization, not consolidated      
Securitization Transactions [Line Items]      
Closed End Second Lien Loans Transferred into Securitization Trust 401,303    
May 2026 | The Company [Member] | Agency-eligible loan securitization, not consolidated      
Securitization Transactions [Line Items]      
Closed End Second Lien Loans Transferred into Securitization Trust 188,357    
May 2026 | Co-Participant(s) | Non-QM loan securitization, not consolidated      
Securitization Transactions [Line Items]      
Closed End Second Lien Loans Transferred into Securitization Trust 102,855    
May 2026 | Co-Participant(s) | Agency-eligible loan securitization, not consolidated      
Securitization Transactions [Line Items]      
Closed End Second Lien Loans Transferred into Securitization Trust 149,588    
June 2026 | Non-QM loan securitization, not consolidated      
Securitization Transactions [Line Items]      
Notes Issued by Securitization Trust 490,049    
June 2026 | CES Loan Securitization, Not Consolidated      
Securitization Transactions [Line Items]      
Notes Issued by Securitization Trust 368,533    
June 2026 | Agency-eligible loan securitization, not consolidated      
Securitization Transactions [Line Items]      
Notes Issued by Securitization Trust 285,760    
June 2026 | The Company [Member] | Non-QM loan securitization, not consolidated      
Securitization Transactions [Line Items]      
Closed End Second Lien Loans Transferred into Securitization Trust 338,889    
June 2026 | The Company [Member] | CES Loan Securitization, Not Consolidated      
Securitization Transactions [Line Items]      
Closed End Second Lien Loans Transferred into Securitization Trust 186,950    
June 2026 | The Company [Member] | Agency-eligible loan securitization, not consolidated      
Securitization Transactions [Line Items]      
Closed End Second Lien Loans Transferred into Securitization Trust 141,884    
June 2026 | Co-Participant(s) | Non-QM loan securitization, not consolidated      
Securitization Transactions [Line Items]      
Closed End Second Lien Loans Transferred into Securitization Trust 151,160    
June 2026 | Co-Participant(s) | CES Loan Securitization, Not Consolidated      
Securitization Transactions [Line Items]      
Closed End Second Lien Loans Transferred into Securitization Trust 181,583    
June 2026 | Co-Participant(s) | Agency-eligible loan securitization, not consolidated      
Securitization Transactions [Line Items]      
Closed End Second Lien Loans Transferred into Securitization Trust $ 143,876    
[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.