| LEASES - Components of ground lease rent expense (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
| Sep. 30, 2024 | Sep. 30, 2023 | Sep. 30, 2024 | Sep. 30, 2023 | |
| Real Estate [Line Items] | ||||
| Amortization of below market lease intangibles | $ 1,264 | $ 1,387 | $ 3,919 | $ 4,180 | 
| Ground lease rent expense | 1,495 | 1,495 | 4,486 | 4,486 | 
| Ground lease | ||||
| Real Estate [Line Items] | ||||
| Amortization of below market lease intangibles | 365 | 365 | 1,095 | 1,095 | 
| Amortization of right-of-use assets | 251 | 252 | 755 | 760 | 
| Interest expense | 1,039 | 1,038 | 3,116 | 3,111 | 
| Above market lease intangibles | ||||
| Real Estate [Line Items] | ||||
| Amortization of above market ground lease intangibles | (1,881) | (1,933) | (5,679) | (5,847) | 
| Above market lease intangibles | Ground lease | ||||
| Real Estate [Line Items] | ||||
| Amortization of above market ground lease intangibles | $ (160) | $ (160) | $ (480) | $ (480) | 
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- Definition Amount of amortization of acquired leases acquired as part of a real property acquisition at below market lease rate with a finite life. No definition available. 
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- Definition The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef 
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- Definition Amount of interest expense classified as operating and nonoperating. Includes, but is not limited to, cost of borrowing accounted for as interest expense. Reference 1: http://www.xbrl.org/2003/role/disclosureRef 
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- Definition Amount of operating lease expense. Excludes sublease income. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef 
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- Definition Amount of periodic reduction over lease term of carrying amount of right-of-use asset from operating lease. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef 
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. Reference 1: http://www.xbrl.org/2003/role/disclosureRef 
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