Counterparty Risk (Narrative) (Details) - USD ($) $ in Thousands		Sep. 30, 2022	Dec. 31, 2021
Risks and Uncertainties [Abstract]
Financial Instruments transferred as collateral for repurchase agreements		$ 3,400,000	$ 2,800,000
Cash and cash equivalents	[1]	$ 175,230	$ 92,661

[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.