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Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

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Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

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Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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The number of limited partner units outstanding.

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The interest rate applicable to the portion of the carrying amount of long-term borrowings outstanding as of the balance sheet date, including current maturities, which accrues interest at a set, unchanging rate.

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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.

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The equity interest of noncontrolling shareholders, partners or other equity holders in consolidated entity.

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The parent entity's interest in net assets of the subsidiary, expressed as a percentage.

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The cash outflow during the period for redemption of redeemable noncontrolling interests.

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Carrying value as of the balance sheet date, including the current and noncurrent portions, of collateralized debt obligations (with maturities initially due after one year or beyond the operating cycle, if longer). Such obligations include mortgage loans, chattel loans, and any other borrowings secured by assets of the borrower.

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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Additional Information (Details) $ in Thousands	1 Months Ended	9 Months Ended
	Oct. 31, 2022 USD ($)	Sep. 30, 2023 USD ($) jointVenture shares	Sep. 30, 2022 jointVenture	Dec. 31, 2022 USD ($) shares
Noncontrolling Interest [Line Items]
Variable interest entity, number of entities \| jointVenture		2
Assets of VIEs		$ 7,052,497		$ 7,341,982
Gross debt		$ 2,843,202		$ 2,978,256
Number of Limited Partner Units outstanding (in shares) \| shares		3,434,881		2,870,697
Variable Interest Entities
Noncontrolling Interest [Line Items]
Mortgage debt of VIEs		$ 112,700
Assets of VIEs		$ 217,600
One Loudoun Downtown - Pads G & H
Noncontrolling Interest [Line Items]
Noncontrolling interest, ownership percentage by parent		90.00%
Operating Partnership
Noncontrolling Interest [Line Items]
Noncontrolling interest, ownership percentage by parent		98.50%		98.70%
Noncontrolling interest, ownership percentage by limited partners		1.50%		1.30%
Mortgages payable
Noncontrolling Interest [Line Items]
Gross debt		$ 154,567		$ 233,621
Mortgages payable \| Fixed Rate Debt
Noncontrolling Interest [Line Items]
Gross debt		$ 136,967		$ 205,328
Mortgages payable \| Fixed Rate Debt \| One Loudoun Downtown - Pads G & H
Noncontrolling Interest [Line Items]
Debt instrument term		10 years
Gross debt		$ 95,100
Fixed interest rate		5.36%
Capital Unit, Class B
Noncontrolling Interest [Line Items]
Number of joint ventures in which units are issued \| jointVenture			3
Number of joint ventures in which units are issued, noncontrolling interest \| jointVenture			1
Amount of joint venture redemption	$ 9,700