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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Additional Information (Details) $ in Thousands |  | 1 Months Ended | 3 Months Ended |
--- | --- | --- | --- | ---
Jan. 31, 2024 USD ($) unit | Aug. 31, 2024 USD ($) | Mar. 31, 2025 USD ($) jointVenture shares | Mar. 31, 2024 USD ($) | Dec. 31, 2024 USD ($) shares
Noncontrolling Interest [Line Items] |  |  |  |  |
Investment in short-term deposits |  | $ 350,000 | $ 0 | $ 265,000 |
Short-term deposits, interest rate (as a percent) |  | 5.05% |  |  |
Interest income |  |  | $ 2,500 |  |
Variable interest entity, number of entities | jointVenture |  |  | 2 |  |
Assets of VIEs |  |  | $ 6,682,508 |  | $ 7,091,767
Number of investments in unconsolidated joint ventures | jointVenture |  |  | 4 |  |
Gain on sale |  |  | $ 91 | (236) |
Gain on sale of unconsolidated property, net |  |  | 0 | 2,325 |
Distributions from unconsolidated joint ventures |  |  | $ 162 | 1,618 |
Limited partners' capital account, units outstanding (in shares) | shares |  |  | 4,849,588 |  | 4,192,597
One Loudoun Downtown - Pads G & H |  |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |  |
Noncontrolling interest, ownership percentage by parent (as a percent) |  |  | 90.00% |  |
Operating Partnership |  |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |  |
Noncontrolling interest, ownership percentage by parent (as a percent) |  |  | 97.80% |  | 98.10%
Noncontrolling interest, ownership percentage by limited partners (as a percent) |  |  | 2.20% |  | 1.90%
Glendale Center Apartments |  |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |  |
Ownership percentage in equity method investment (as a percent) | 11.50% |  |  |  |
Gain on sale | $ 20,200 |  |  |  |
Gain on sale of unconsolidated property, net |  |  |  | 2,300 |
Distributions from unconsolidated joint ventures |  |  |  | $ 1,600 |
Glendale Center Apartments | Multifamily |  |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |  |
Number of multifamily rental units | unit | 267 |  |  |  |
Variable Interest Entities |  |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |  |
Mortgage debt of VIEs |  |  | $ 109,100 |  |
Assets of VIEs |  |  | $ 218,900 |  |

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