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DEBT OBLIGATIONS - Mortgages Payable (Details) | 12 Months Ended | 36 Months Ended |
--- | --- | --- | ---
Dec. 31, 2023 USD ($) | Dec. 31, 2022 USD ($) item | Dec. 31, 2020 USD ($) | Dec. 31, 2022 USD ($) item | Dec. 31, 2021 USD ($)
Mortgages payable, net |  |  |  |  |
Mortgages payable, gross |  | $ 409,175,000 |  | $ 409,175,000 | $ 399,660,000
Mortgages payable, net |  | 405,162,000 |  | 405,162,000 | 396,344,000
Aggregate gross carrying value of real estate investments |  | 879,596,000 |  | 879,596,000 | 837,641,000
Accumulated depreciation |  | $ 173,143,000 |  | $ 173,143,000 | 160,664,000
Real Estate Investments with outstanding mortgages |  |  |  |  |
Mortgages payable, net |  |  |  |  |
Number of outstanding mortgages | item |  | 66 |  | 66 |
Aggregate gross carrying value of real estate investments |  | $ 647,524,000 |  | $ 647,524,000 |
Accumulated depreciation |  | 111,847,000 |  | 111,847,000 |
Mortgages payable |  |  |  |  |
Mortgages payable, net |  |  |  |  |
Mortgages payable, gross |  | 409,175,000 |  | 409,175,000 | 399,660,000
Unamortized mortgage intangible asset |  | (658,000) |  | (658,000) |
Unamortized deferred financing costs |  | (3,355,000) |  | (3,355,000) | (3,316,000)
Mortgages payable, net |  | $ 405,162,000 |  | $ 405,162,000 | $ 396,344,000
Weighted average interest rate (as a percent) |  | 4.10% |  | 4.10% | 4.18%
Mortgages payable | Minimum |  |  |  |  |
Mortgages payable, net |  |  |  |  |
Interest rate after giving effect to interest rate swap agreements |  | 3.02% |  |  |
Mortgages payable | Maximum |  |  |  |  |
Mortgages payable, net |  |  |  |  |
Interest rate after giving effect to interest rate swap agreements |  | 5.50% |  |  |
Mortgages payable | COVID-19 |  |  |  |  |
Mortgages payable, net |  |  |  |  |
Amount of deferred debt service payments repaid |  |  |  | $ 1,079,000 |
Mortgages payable | COVID-19 | Debt service due in 2020 and 2021 |  |  |  |  |
Mortgages payable, net |  |  |  |  |
Deferral of debt service payments |  |  | $ 1,670,000 |  |
Mortgages payable | COVID-19 | Forecast |  |  |  |  |
Mortgages payable, net |  |  |  |  |
Amount of deferred debt service payments repaid | $ 109,000 |  |  |  |

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- Definition Carrying value as of the balance sheet date, including the current and noncurrent portions, of collateralized debt obligations before netting of deferred finance costs. Such obligations include mortgage loans, chattel loans, and any other borrowings secured by assets of the borrower. + References No definition available. + Details
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- Definition Amount, after accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 50 -Paragraph 1D -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=123466505&loc=SL123495340-112611 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 3 -URI https://asc.fasb.org/extlink&oid=124435984&loc=d3e28555-108399 + Details
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- Definition Carrying value as of the balance sheet date, including the current and noncurrent portions, of collateralized debt obligations (with maturities initially due after one year or beyond the operating cycle, if longer). Such obligations include mortgage loans, chattel loans, and any other borrowings secured by assets of the borrower. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(16)) -URI https://asc.fasb.org/extlink&oid=126734703&loc=d3e572229-122910 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(16)) -URI https://asc.fasb.org/extlink&oid=126897435&loc=d3e534808-122878 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(22)) -URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
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