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INVESTMENT IN UNCONSOLIDATED REAL ESTATE VENTURES - MAP Venture (Details)		3 Months Ended		6 Months Ended
	Jun. 28, 2024 USD ($)	Jun. 30, 2024 USD ($)	Jun. 30, 2023 USD ($)	Jun. 30, 2024 USD ($)	Jun. 30, 2023 USD ($)	Jun. 28, 2024	Jun. 28, 2024 joint_venture	Jun. 28, 2024 property	Jun. 28, 2024 portfolioAsset	Dec. 31, 2023 USD ($)
Schedule of Equity Method Investments [Line Items]
Investment in real estate ventures		$ 680,136,000		$ 680,136,000						$ 552,494,000
Debt, net		2,241,560,000		2,241,560,000						$ 2,138,832,000
Net gain on real estate venture transactions	$ 53,762,000	53,762,000	$ 181,000	53,733,000	$ 181,000
MAP Venture
Schedule of Equity Method Investments [Line Items]
Number of unconsolidated joint ventures | joint_venture							1
Real estate investment, net	52,200,000
Equity method investment, ownership percentage						50.00%
Investment in real estate ventures		$ 0		$ 0
Number of office properties owned | property								57
Net gain on real estate venture transactions	53,800,000
MAP Venture | Nonrecourse Mortgage Loan | Secured fixed rate debt | MAP Venture
Schedule of Equity Method Investments [Line Items]
Debt, net	$ 154,600,000
Basis spread on interest rate (as percent)	2.75%
Lender residual entitlement percentage						95.00%
KB Joint Venture
Schedule of Equity Method Investments [Line Items]
Equity method investment, ownership percentage						50.00%
Investment in real estate ventures	$ 26,000,000
Number of properties contributed to joint venture								14	14

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