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SALES OF PROPERTIES (Details) - USD ($) $ in Thousands |  |  |  |  | 3 Months Ended | 9 Months Ended
--- | --- | --- | --- | --- | --- | ---
Jul. 01, 2021 | Jun. 17, 2021 | Jul. 01, 2020 | Feb. 11, 2020 | Sep. 30, 2021 | Sep. 30, 2020 | Jun. 30, 2020 | Sep. 30, 2021 | Sep. 30, 2020
SALES OF PROPERTIES |  |  |  |  |  |  |  |  |
Mortgage Prepaid on Sale |  |  |  |  |  |  |  | $ 26,630 | $ 11,815
Prepayment costs on debt |  |  |  |  | $ (38) | $ (58) |  | (837) | (1,123)
Properties disposed of by sale |  |  |  |  |  |  |  |  |
SALES OF PROPERTIES |  |  |  |  |  |  |  |  |
Gross Sales Price |  |  |  |  |  |  |  | 48,810 | 25,115
Gain on Sale of Real Estate, Net |  |  |  |  |  |  |  | 22,768 | 14,568
Mortgage Prepaid on Sale |  |  |  |  |  |  |  | 18,977 | 11,815
Prepayment costs on debt |  |  |  |  |  |  |  | $ 825 | $ 1,123
Properties disposed of by sale | Whole Foods retail property & parking lot, West Hartford, Connecticut |  |  |  |  |  |  |  |  |
SALES OF PROPERTIES |  |  |  |  |  |  |  |  |
Gross Sales Price |  | $ 40,510 |  |  |  |  |  |  |
Gain on Sale of Real Estate, Net |  | 21,469 |  |  |  |  |  |  |
Mortgage Prepaid on Sale |  | 15,403 |  |  |  |  |  |  |
Prepayment costs on debt |  | 799 |  |  |  |  |  |  |
Write-off of unbilled rent receivable, as a reduction to Gain on sale of real estate, net |  | 1,148 |  |  |  |  |  |  |
Write-off of the unamortized intangible lease liability |  | $ 967 |  |  |  |  |  |  |
Properties disposed of by sale | Vacant retail property, Philadelphia, Pennsylvania |  |  |  |  |  |  |  |  |
SALES OF PROPERTIES |  |  |  |  |  |  |  |  |
Gross Sales Price | $ 8,300 |  |  |  |  |  |  |  |
Gain on Sale of Real Estate, Net | 1,299 |  |  |  |  |  |  |  |
Mortgage Prepaid on Sale | 3,574 |  |  |  |  |  |  |  |
Prepayment costs on debt | $ 26 |  |  |  |  |  |  |  |
Ownership interest in consolidated joint venture of the company (as a percent) | 90.00% |  |  |  |  |  |  |  |
Noncontrolling interest share of gain | $ 130 |  |  |  |  |  |  |  |
Properties disposed of by sale | Hobby Lobby retail property, Onalaska, Wisconsin |  |  |  |  |  |  |  |  |
SALES OF PROPERTIES |  |  |  |  |  |  |  |  |
Gross Sales Price |  |  |  | $ 7,115 |  |  |  |  |
Gain on Sale of Real Estate, Net |  |  |  | 4,252 |  |  |  |  |
Mortgage Prepaid on Sale |  |  |  | 3,332 |  |  |  |  |
Prepayment costs on debt |  |  |  | 290 |  |  |  |  |
Write-off of unbilled rent receivable, as a reduction to Gain on sale of real estate, net |  |  |  | $ 170 |  |  |  |  |
Properties disposed of by sale | CarMax retail property, Knoxville, Tennessee |  |  |  |  |  |  |  |  |
SALES OF PROPERTIES |  |  |  |  |  |  |  |  |
Gross Sales Price |  |  | $ 18,000 |  |  |  |  |  |
Gain on Sale of Real Estate, Net |  |  | 10,316 |  |  |  |  |  |
Mortgage Prepaid on Sale |  |  | 8,483 |  |  |  |  |  |
Prepayment costs on debt |  |  | 833 |  |  | $ 58 | $ 775 |  |
Write-off of unbilled rent receivable, as a reduction to Gain on sale of real estate, net |  |  | $ 122 |  |  |  |  |  |
Consolidated Joint Venture-VIEs |  |  |  |  |  |  |  |  |
SALES OF PROPERTIES |  |  |  |  |  |  |  |  |
Ownership interest in consolidated joint venture of the company (as a percent) |  |  |  |  | 90.00% |  |  | 90.00% |

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