Investment in Loans (Schedule of Consumer Loans) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022		Dec. 31, 2021		Oct. 03, 2022
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid Principal Balance	$ 11,609,077		$ 2,366,724
Unamortized Premium (Discount)	(164,198)		(143,262)
Loans, at fair value	$ 11,626,008	[1],[2]	$ 2,415,321	[1],[2]	$ 7,698,426
Weighted Average
Accounts, Notes, Loans and Financing Receivable [Line Items]
Weighted average life	6 years 8 months 1 day		5 years 11 months 8 days
Consumer loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Fair value of charged-off loans	$ 200		$ 300
Unpaid Principal Balance	5,190		59,881
Unamortized Premium (Discount)	(43)		3,212
Investments, at fair value, Cost	5,147		63,093
Gains	341		809
Losses	(645)		(1,537)
Loans, at fair value	$ 4,843		$ 62,365
Consumer loans | Weighted Average
Accounts, Notes, Loans and Financing Receivable [Line Items]
Weighted average life	9 months 21 days		11 months 8 days
Delinquency (Days)	10 days		4 days

[1] Ellington Financial Inc.'s Consolidated Balance Sheets include assets and liabilities of variable interest entities it has consolidated. See Note 11 for additional details on Ellington Financial Inc.'s consolidated variable interest entities.

[2] Includes assets pledged as collateral to counterparties. See Note 13 for additional details on the Company's borrowings and related collateral.