Investment in Loans Investment in Loans (Schedule of Corporate 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
Loans, at fair value	11,626,008	[1],[2]	2,415,321	[1],[2]	$ 7,698,426
Corporate loan [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid Principal Balance	4,132		10,531
Loans, at fair value	$ 4,086		$ 10,531
Weighted Average
Accounts, Notes, Loans and Financing Receivable [Line Items]
Weighted Average Coupon	1.58%		3.52%
Weighted average life	6 years 8 months 1 day		5 years 11 months 8 days
Weighted Average | Corporate loan [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Weighted Average Coupon	5.47%		16.14%
Weighted average life	2 years 8 months 26 days		4 years 3 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.