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INVESTMENT IN UNCONSOLIDATED REAL ESTATE VENTURES - Cira Square (Details) $ in Thousands	May 06, 2024 USD ($)	Mar. 17, 2022 USD ($) ft²	Jun. 30, 2024 USD ($) ft²	Dec. 31, 2023 USD ($)
Schedule of Equity Method Investments [Line Items]
Area of real estate property | ft²			13,011,094
Investment in real estate ventures			$ 680,136	$ 552,494
Cira Square REIT, LLC
Schedule of Equity Method Investments [Line Items]
Investment in fund holding limited partnerships aggregate		$ 383,000
Equity method investment, ownership percentage		20.00%
Purchase price	$ 19,400	$ 28,600
Basis spread on interest rate (as percent)		3.50%
Investment in real estate ventures			$ 44,100
Cira Square REIT, LLC | All Investors
Schedule of Equity Method Investments [Line Items]
Purchase price	96,900
Cira Square REIT, LLC | Secured fixed rate debt
Schedule of Equity Method Investments [Line Items]
Debt instrument, face amount		$ 257,700
Proceeds from issuance of secured debt	$ 160,000
Debt instrument, interest rate, stated percentage	8.817%
Office Properties | Cira Square REIT, LLC
Schedule of Equity Method Investments [Line Items]
Area of real estate property | ft²		862,692

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