REAL ESTATE INVESTMENTS - Narrative (Details)	3 Months Ended
Sep. 30, 2026 USD ($) ft² property
Real Estate [Line Items]
Number of Properties \| property	59
Impairment of real estate	$ 0
Disposal Group, Disposed of by Sale, Not Discontinued Operations \| Pennsylvania Suburbs
Real Estate [Line Items]
Rentable area (in square feet) \| ft²	100,820
Dispositions	$ 41,500,000
Gain on disposition of assets	$ 13,500,000
Disposal Group, Disposed of by Sale, Not Discontinued Operations \| Austin, Texas
Real Estate [Line Items]
Rentable area (in square feet) \| ft²	205,803
Dispositions	$ 151,000,000.0
Gain on disposition of assets	$ 41,300,000
Disposal Group, Disposed of by Sale, Not Discontinued Operations \| Unaffiliated Third Party
Real Estate [Line Items]
Rentable area (in square feet) \| ft²	468,279
Dispositions	$ 97,100,000
Gain on disposition of assets	$ 900,000
Number of Properties \| property	2
Disposal Group, Disposed of by Sale, Not Discontinued Operations \| Pennsylvania Central Business District
Real Estate [Line Items]
Rentable area (in square feet) \| ft²	441,000
Dispositions	$ 240,000,000.0
Impairment of real estate	$ 29,100,000

Amount of consideration received or receivable for the disposal of assets and liabilities, including discontinued operation.

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Amount, before tax, of (gain) loss recognized for the (reversal of write-down) write-down to fair value, less cost to sell, of a disposal group. Excludes discontinued operations.

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Net rentable area for properties owned.

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