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v3.24.3

Affiliates - Narrative (Details) | 3 Months Ended | 9 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | --- | ---
Sep. 30, 2024 affiliate | Sep. 30, 2024 affiliate | Sep. 30, 2023 affiliate | Dec. 31, 2023 affiliate | Jun. 30, 2024 USD ($) | Dec. 31, 2020 $ / shares
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |
Number of unconsolidated affiliates | affiliate | 1 | 5 | 5 | 5 |  |
Fair value of warrants (in dollar per share) | $ / shares |  |  |  |  |  | $ 10.0
Great Ajax F S [Member] | Carrying value |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |
Investments, fair value disclosure | $ |  |  |  |  | $ 0 |
2017-D |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |
Ownership percentage by parent (as percent) | 50.00% | 50.00% |  | 50.00% |  |
Great Ajax II REIT |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |
Ownership percentage by parent (as percent) | 99.90% | 99.90% |  | 99.90% |  |
AS Ajax E II |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |
Ownership percentage by parent (as percent) | 0.00% | 0.00% |  |  |  |
Thetis Asset Management LLC |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |
Ownership percentage (in percent) | 19.80% | 19.80% |  | 19.80% |  |
Great Ajax FS LLC |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |
Ownership percentage (in percent) | 0.00% | 0.00% |  | 9.72% |  |
Gaea Real Estate Corp. |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |
Ownership percentage (in percent) | 22.20% | 22.20% |  | 22.20% |  |
AS Ajax E LLC |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |
Ownership percentage (in percent) | 0.00% | 0.00% |  | 16.50% |  |
Loan pool LLCs |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |
Ownership percentage (in percent) | 0.00% | 0.00% |  | 40.00% |  |

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