Organization and Investment Objective (Details) - $ / shares |
Sep. 30, 2021 |
Dec. 31, 2020 |
|---|---|---|
| Organization, Consolidation and Presentation of Financial Statements [Abstract] | ||
| Common Stock, Par or Stated Value Per Share | $ 0.001 | $ 0.001 |
| Ellington Financial Operating Partnership LLC [Member] | Total Stockholders' Equity | ||
| Organization, Consolidation and Presentation of Financial Statements [Line Items] | ||
| Ownership Percentage | 98.80% |