Investments in Unconsolidated Entities (Details) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
		Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024	Dec. 31, 2024
Schedule of Equity Method Investments [Line Items]
Investments in unconsolidated entities, at fair value(1)	[1]	$ 287,686		$ 287,686		$ 220,078
Earnings (losses) from investments in unconsolidated entities		13,074	$ 7,281	38,449	$ 21,549
Variable Interest Entity, Not Primary Beneficiary
Schedule of Equity Method Investments [Line Items]
Investments in unconsolidated entities, at fair value(1)		$ 226,100		$ 226,100		$ 184,400

[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.