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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Additional Information (Details) | 1 Months Ended | 12 Months Ended |
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Oct. 31, 2022 USD ($) | Sep. 30, 2021 USD ($) | May 31, 2020 USD ($) | Dec. 31, 2017 USD ($) | Dec. 31, 2022 USD ($) segment joint_venture shares | Dec. 31, 2021 USD ($) joint_venture shares | Dec. 31, 2020 USD ($) shares | Jun. 29, 2018 USD ($) property
Accounting Policies [Line Items] |  |  |  |  |  |  |  |
Variable interest entity, number of entities | joint_venture |  |  |  |  | 2 |  |  |
Liabilities |  |  |  |  | $ 3,516,130,000 | $ 3,657,209,000 |  |
Assets |  |  |  |  | $ 7,341,982,000 | 7,639,575,000 |  |
Number of investments in unconsolidated joint ventures | joint_venture |  |  |  |  | 4 |  |  |
Payments to acquire equity method investments |  |  |  |  | $ 125,000 | 134,000 | $ 541,000 |
Investment in short-term deposits |  |  |  |  | 125,000,000 | (125,000,000) | 0 |
Gain on sales of operating properties, net |  |  |  |  | $ 4,500,000 | $ 500,000 | $ 5,900,000 |
Provision for credit losses, net of recoveries as percent of total revenues |  |  |  |  | 0.70% | 0.90% | 6.00% |
Weighted average limited partnership units outstanding, basic (in shares) | shares |  |  |  |  | 2,800,000 | 2,500,000 | 2,200,000 |
Number of operating segments | segment |  |  |  |  | 1 |  |  |
Limited partners' capital account, units outstanding (in shares) | shares |  |  |  |  | 2,870,697 | 2,377,777 |  |
Variable Interest Entity, Primary Beneficiary |  |  |  |  |  |  |  |
Accounting Policies [Line Items] |  |  |  |  |  |  |  |
Liabilities |  |  |  |  | $ 28,300,000 |  |  |
Assets |  |  |  |  | $ 118,600,000 |  |  |
Fed Funds Effective Rate |  |  |  |  |  |  |  |
Accounting Policies [Line Items] |  |  |  |  |  |  |  |
Deposit balance basis point spread on interest rate |  |  |  |  | 0.43% |  |  |
Capital Unit, Class B |  |  |  |  |  |  |  |
Accounting Policies [Line Items] |  |  |  |  |  |  |  |
Number of joint ventures in which units are issued | joint_venture |  |  |  |  | 3 |  |  |
Number of joint ventures in which units are issued, noncontrolling interest | joint_venture |  |  |  |  |  | 1 |  |
Amount of joint venture redemption | $ 9,700,000 |  |  |  |  |  |  |
Operating Partnership |  |  |  |  |  |  |  |
Accounting Policies [Line Items] |  |  |  |  |  |  |  |
Noncontrolling interest, ownership percentage by parent |  |  |  |  | 98.70% | 98.90% |  |
Noncontrolling interest, ownership percentage by noncontrolling owners |  |  |  |  | 1.30% | 1.10% |  |
Three Property Retail Portfolio Joint Venture |  |  |  |  |  |  |  |
Accounting Policies [Line Items] |  |  |  |  |  |  |  |
Ownership percentage in equity method investment |  |  |  |  |  |  |  | 20.00%
Embassy Suites joint venture |  |  |  |  |  |  |  |
Accounting Policies [Line Items] |  |  |  |  |  |  |  |
Ownership percentage in equity method investment |  |  |  | 35.00% |  |  |  |
Payments to acquire equity method investments |  |  |  | $ 1,400,000 |  |  |  |
Embassy Suites joint venture | Co-venturer |  |  |  |  |  |  |  |
Accounting Policies [Line Items] |  |  |  |  |  |  |  |
Construction loan payable |  |  |  |  | $ 33,500,000 |  |  |
Embassy Suites joint venture | Co-venturer | Construction Loan |  |  |  |  |  |  |  |
Accounting Policies [Line Items] |  |  |  |  |  |  |  |
Debt instrument, face amount |  |  |  |  | $ 33,800,000 |  |  |
Glendale multifamily joint venture |  |  |  |  |  |  |  |
Accounting Policies [Line Items] |  |  |  |  |  |  |  |
Ownership percentage in equity method investment |  |  | 12.00% |  |  |  |  |
Glendale multifamily joint venture | Land |  |  |  |  |  |  |  |
Accounting Policies [Line Items] |  |  |  |  |  |  |  |
Contribution of property |  |  | $ 1,600,000 |  |  |  |  |
Buckingham joint venture |  |  |  |  |  |  |  |
Accounting Policies [Line Items] |  |  |  |  |  |  |  |
Ownership percentage in equity method investment |  | 50.00% |  |  |  |  |  |
Buckingham joint venture | Land |  |  |  |  |  |  |  |
Accounting Policies [Line Items] |  |  |  |  |  |  |  |
Contribution of property |  | $ 4,000,000 |  |  |  |  |  |
One Loudoun Downtown - Pads G & H joint venture |  |  |  |  |  |  |  |
Accounting Policies [Line Items] |  |  |  |  |  |  |  |
Ownership percentage in equity method investment |  |  |  |  | 90.00% |  |  |
Payments to acquire equity method investments |  |  |  |  | $ 900,000 |  |  |
Livingston Shopping Center, Plaza Volente, and Tamiami Crossing | Three Property Retail Portfolio Joint Venture |  |  |  |  |  |  |  |
Accounting Policies [Line Items] |  |  |  |  |  |  |  |
Number of real estate properties | property |  |  |  |  |  |  |  | 3
Consideration received |  |  |  |  |  |  |  | $ 99,800,000
Equity method investment |  |  |  |  |  |  |  | $ 10,000,000

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