Securitization Transactions (Schedule of Assets and Liabilities Attributable to Consolidated VIEs) (Details) - USD ($) $ in Thousands		Dec. 31, 2022	Mar. 31, 2022	Dec. 31, 2021
Variable Interest Entity [Line Items]
Other secured borrowings, at fair value	[1]		$ 1,216,542	$ 984,168
Loans, at fair value	[1],[2]		2,884,627	2,415,321
Real estate owned	[1],[2]		24,533	24,681
Investment related receivables	[1]		134,460	122,175
Residential mortgage loans
Variable Interest Entity [Line Items]
Loans, at fair value			2,433,007	2,016,228
Consolidated Entities [Member] | Non-QM loan securitization
Variable Interest Entity [Line Items]
Other secured borrowings, at fair value			1,216,542	984,168
Investment related receivables			14,951	23,069
Consolidated Entities [Member] | Residential mortgage loans | Securitized loans [Member] | Non-QM loan securitization
Variable Interest Entity [Line Items]
Loans, at fair value		$ 1,318,000	$ 1,317,567	$ 1,041,545

[1] Ellington Financial Inc.'s Condensed Consolidated Balance Sheet includes assets and liabilities of variable interest entities it has consolidated. See Note 9 for additional details on Ellington Financial Inc.'s consolidated variable interest entities.

[2] Includes assets pledged as collateral to counterparties. See Note 11 for additional details on the Company's borrowings and related collateral.