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RELATED PARTY TRANSACTIONS - Joint Venture Partners and Affiliates (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Unconsolidated Joint Ventures
Related Party Transactions
Payments for property management services	$ 31,000	$ 18,000	$ 60,000
Aggregate management fees paid to other partners				$ 40,000
Decrease in equity earnings, joint venture transaction	16,000	9,000	30,000	20,000
Joint Venture Partners and Affiliates
Related Party Transactions
Payments for property management services	$ 20,000	$ 16,000	$ 38,000	$ 36,000

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- Definition

Aggregate management fees paid to other partners of the venture.

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- Definition

Reduction of equity in earnings of unconsolidated joint ventures on the consolidated statement of income.

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- Definition

Represents the aggregate costs related to management of properties during the reporting period.

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