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DESCRIPTION OF BUSINESS (Details) $ in Thousands, ft² in Millions |  |  | 9 Months Ended |  |  |
--- | --- | --- | --- | --- | --- | ---
Oct. 14, 2022 ft² | Apr. 27, 2022 | Sep. 30, 2022 USD ($) ft² loan property county country a | Dec. 31, 2021 USD ($) | Sep. 30, 2021 | Jun. 30, 2018
Real Estate Properties |  |  |  |  |  |
Number of commercial loan investment | loan |  |  | 5 |  |  |
Investment in Alpine Income Property Trust, Inc. | $ |  |  | $ 35,260 | $ 41,037 |  |
Stock split ratio |  | 3 |  |  |  |
Subsequent Event | Madison Yards |  |  |  |  |  |
Real Estate Properties |  |  |  |  |  |
Area of property acquired | ft² | 0.4 |  |  |  |  |
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. | $ |  |  | $ 35,260 | $ 41,037 |  |
Investment ownership percentage (as a percent) |  |  | 16.00% |  |  |
Stock split ratio |  |  | 1 |  |  |
Mitigation Bank |  |  |  |  |  |
Real Estate Properties |  |  |  |  |  |
Interest in the joint venture (as a percent) |  |  | 70.00% |  |  |
Area of land owned | a |  |  | 2,500 |  |  |
Equity method investment, ownership percentage (as a percent) |  |  |  |  | 30.00% | 30.00%
Florida |  |  |  |  |  |
Real Estate Properties |  |  |  |  |  |
Number of states in which entity operates | country |  |  | 19 |  |  |
Subsurface area of portfolio of mineral interests | a |  |  | 355,000 |  |  |
Commercial Real Estate Portfolio Segment |  |  |  |  |  |
Real Estate Properties |  |  |  |  |  |
Number of commercial loan investment | loan |  |  | 5 |  |  |
Commercial |  |  |  |  |  |
Real Estate Properties |  |  |  |  |  |
Number of real estate properties |  |  | 18 |  |  |
Number of states in which entity operates | county |  |  | 9 |  |  |
Gross leasable space | ft² |  |  | 2.7 |  |  |
Number of preferred equity investment |  |  | 1 |  |  |
Single-tenant |  |  |  |  |  |
Real Estate Properties |  |  |  |  |  |
Number of real estate properties |  |  | 5 |  |  |
Multi-tenant |  |  |  |  |  |
Real Estate Properties |  |  |  |  |  |
Number of real estate properties |  |  | 13 |  |  |

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