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DESCRIPTION OF BUSINESS (Details) $ in Thousands, ft² in Millions | 9 Months Ended |
--- | --- | ---
Sep. 30, 2023 USD ($) ft² property state a loan country | Dec. 31, 2022 USD ($)
Real Estate Properties |  |
Number of commercial loan investment | loan | 3 |
Investment in Alpine Income Property Trust, Inc. | $ | $ 38,162 | $ 42,041
Alpine Income Property Trust, Inc. Common Stock and Alpine Income Property OP, LP Limited Partnership Units |  |
Real Estate Properties |  |
Investment in Alpine Income Property Trust, Inc. | $ | $ 38,162 | $ 42,041
Investment ownership percentage (as a percent) | 15.10% |
Florida |  |
Real Estate Properties |  |
Number of states in which entity operates | country | 19 |
Subsurface area of portfolio of mineral interests | a | 352,000 |
Commercial |  |
Real Estate Properties |  |
Number of real estate properties | 23 |
Number of states in which entity operates | state | 9 |
Gross leasable space | ft² | 4.1 |
Number of preferred equity investment | 1 |
Single-tenant |  |
Real Estate Properties |  |
Number of real estate properties | 7 |
Multi-tenant |  |
Real Estate Properties |  |
Number of real estate properties | 16 |

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