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VARIABLE INTEREST ENTITIES, CONTINGENT LIABILITY AND CONSOLIDATED JOINT VENTURES - Ground Leases (Details) - USD ($)	1 Months Ended		3 Months Ended		9 Months Ended		12 Months Ended		36 Months Ended
	Jan. 31, 2023	Nov. 30, 2020	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022	Dec. 31, 2022	Dec. 31, 2016	Sep. 30, 2023
Variable Interest Entities - Ground Lease
Revenue			$ 22,546,000	$ 21,473,000	$ 67,905,000	$ 64,501,000
Variable Interest Entity, Not Primary Beneficiary | The Vue
Variable Interest Entities - Ground Lease
Maximum exposure to loss			17,012,000		17,012,000				$ 17,012,000
Owner/ Operator Mortgage from Third Party								$ 67,444,000
Current Balance of Owner or Operator Mortgage Debt Obtained From Third Party			$ 63,887,000		63,887,000				63,887,000
Percentage of operating expense shortfalls & cap-ex covered by the Company		78.00%
Amount of operating expense shortfalls & cap-ex covered by the Company					$ 668,000		$ 697,000
Proceeds received from settlement of lawsuit	$ 4,642,000
Accrued rental income							$ 4,626,000
Variable Interest Entity, Not Primary Beneficiary | The Vue | Ground lease rental income
Variable Interest Entities - Ground Lease
Revenue									$ 0

X

- Definition

The amount of operating expense shortfalls and capital expenditures in excess of the initial operating expense deposit to be covered by the Company.

+ References

No definition available.

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- Definition

The percentage of operating expense shortfalls and capital expenditures in excess of the initial operating expense deposit to be covered by the Company.

+ References

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- Definition

Current balance of owner/operator mortgage debt obtained from a third party.

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Represents the original amount of mortgage debt related obtained from a third party.

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- Definition

Amount of deferred income excluding obligation to transfer product and service to customer for which consideration has been received or is receivable.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 944
-SubTopic 30
-Name Accounting Standards Codification
-Section 50
-Paragraph 2B
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479432/944-30-50-2B

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-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480016/944-40-65-2

Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef
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-Publisher FASB
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Amount awarded from other party in judgment or settlement of litigation.

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- Definition

Amount of operating lease income from lease payments and variable lease payments paid and payable to lessor. Includes, but is not limited to, variable lease payments not included in measurement of lease receivable.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 842
-SubTopic 30
-Name Accounting Standards Codification
-Section 50
-Paragraph 5
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-URI https://asc.fasb.org//1943274/2147479773/842-30-50-5

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- Definition

The reporting entity's maximum amount of exposure to loss as a result of its involvement with the Variable Interest Entity (VIE).

+ References

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-Name Accounting Standards Codification
-Topic 810
-SubTopic 10
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