Securitization Transactions (Schedule of Non-Consolidated Non-QM Securitizations (Details) - USD ($) $ in Thousands		6 Months Ended
		Jun. 30, 2025	Dec. 31, 2024
Securitization Transactions [Line Items]
Securities, at fair value(1)(2)	[1],[2]	$ 938,454	$ 962,254
Co-Sponsored Securitization
Securitization Transactions [Line Items]
Securities, at fair value(1)(2)		150,500	48,200
Non-QM loan securitization, not consolidated
Securitization Transactions [Line Items]
Securities, at fair value(1)(2)		87,700	$ 28,900
December 2022 | Non-QM loan securitization, not consolidated
Securitization Transactions [Line Items]
Total Face Amount of Certificates Issued		365,262
December 2022 | The Company [Member] | Non-QM loan securitization, not consolidated
Securitization Transactions [Line Items]
Principal Balance of Loans Transferred to the Depositor		309,998
December 2022 | non-QM co-participant | Non-QM loan securitization, not consolidated
Securitization Transactions [Line Items]
Principal Balance of Loans Transferred to the Depositor		55,264
February 2023 | Non-QM loan securitization, not consolidated
Securitization Transactions [Line Items]
Total Face Amount of Certificates Issued		330,367
February 2023 | The Company [Member] | Non-QM loan securitization, not consolidated
Securitization Transactions [Line Items]
Principal Balance of Loans Transferred to the Depositor		176,218
February 2023 | non-QM co-participant | Non-QM loan securitization, not consolidated
Securitization Transactions [Line Items]
Principal Balance of Loans Transferred to the Depositor		154,149
April 2024 | Non-QM loan securitization, not consolidated
Securitization Transactions [Line Items]
Total Face Amount of Certificates Issued		300,452
April 2024 | The Company [Member] | Non-QM loan securitization, not consolidated
Securitization Transactions [Line Items]
Principal Balance of Loans Transferred to the Depositor		194,497
April 2024 | non-QM co-participant | Non-QM loan securitization, not consolidated
Securitization Transactions [Line Items]
Principal Balance of Loans Transferred to the Depositor		105,955
October 2024 | Non-QM loan securitization, not consolidated
Securitization Transactions [Line Items]
Total Face Amount of Certificates Issued		288,017
October 2024 | The Company [Member] | Non-QM loan securitization, not consolidated
Securitization Transactions [Line Items]
Principal Balance of Loans Transferred to the Depositor		238,247
October 2024 | non-QM co-participant | Non-QM loan securitization, not consolidated
Securitization Transactions [Line Items]
Principal Balance of Loans Transferred to the Depositor		49,770
November 2024 | Non-QM loan securitization, not consolidated
Securitization Transactions [Line Items]
Total Face Amount of Certificates Issued		290,478
November 2024 | The Company [Member] | Non-QM loan securitization, not consolidated
Securitization Transactions [Line Items]
Principal Balance of Loans Transferred to the Depositor		189,072
November 2024 | non-QM co-participant | Non-QM loan securitization, not consolidated
Securitization Transactions [Line Items]
Principal Balance of Loans Transferred to the Depositor		101,406
December 2024 | CES Loan Securitization, Not Consolidated
Securitization Transactions [Line Items]
Notes Issued by CES Securitization Trust		199,354
December 2024 | The Company [Member] | CES Loan Securitization, Not Consolidated
Securitization Transactions [Line Items]
Closed End Second Lien Loans Transferred into Securitization Trust		102,642
December 2024 | CES Co-Participant | CES Loan Securitization, Not Consolidated
Securitization Transactions [Line Items]
Closed End Second Lien Loans Transferred into Securitization Trust		96,712
February 2025 | Non-QM loan securitization, not consolidated
Securitization Transactions [Line Items]
Total Face Amount of Certificates Issued		259,707
February 2025 | CES Loan Securitization, Not Consolidated
Securitization Transactions [Line Items]
Notes Issued by CES Securitization Trust		268,902
February 2025 | The Company [Member] | Non-QM loan securitization, not consolidated
Securitization Transactions [Line Items]
Principal Balance of Loans Transferred to the Depositor		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 | non-QM co-participant | Non-QM loan securitization, not consolidated
Securitization Transactions [Line Items]
Principal Balance of Loans Transferred to the Depositor		111,518
February 2025 | CES Co-Participant | 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 CES 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 | CES Co-Participant | 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]
Total Face Amount of Certificates Issued		269,632
January 2025 | The Company [Member] | Non-QM loan securitization, not consolidated
Securitization Transactions [Line Items]
Principal Balance of Loans Transferred to the Depositor		193,569
January 2025 | non-QM co-participant | Non-QM loan securitization, not consolidated
Securitization Transactions [Line Items]
Principal Balance of Loans Transferred to the Depositor		76,063
April 2025 | Non-QM loan securitization, not consolidated
Securitization Transactions [Line Items]
Notes Issued by CES 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 | non-QM co-participant | 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 CES Securitization Trust		282,772
June 2025 | CES Loan Securitization, Not Consolidated
Securitization Transactions [Line Items]
Notes Issued by CES 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 | non-QM co-participant | Non-QM loan securitization, not consolidated
Securitization Transactions [Line Items]
Closed End Second Lien Loans Transferred into Securitization Trust		100,752
June 2025 | CES Co-Participant | CES Loan Securitization, Not Consolidated
Securitization Transactions [Line Items]
Closed End Second Lien Loans Transferred into Securitization Trust		$ 111,147

[1] Ellington Financial Inc.'s Condensed 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.