v3.25.4

Investments in Unconsolidated Real Estate Ventures - Summary of Composition of Investments (Details) $ in Thousands	1 Months Ended		12 Months Ended
	Sep. 30, 2025 USD ($)	Mar. 31, 2023 USD ($)	Dec. 31, 2025 USD ($) property building	Dec. 31, 2024 USD ($)	Dec. 31, 2023 USD ($)
Investments in Unconsolidated Real Estate Ventures
Total investments in unconsolidated real estate ventures			$ 105,711	$ 93,654
Number of Real Estate Properties | property			39
Difference between the investments in unconsolidated real estate ventures and the net book value of the underlying assets			$ 2,000	10,600
One Commercial Building
Investments in Unconsolidated Real Estate Ventures
Subordinated interest			10.00%
Number of Real Estate Properties | building			1
1101 17th Street
Investments in Unconsolidated Real Estate Ventures
Total investments in unconsolidated real estate ventures	$ 0
Ownership percentage acquired	45.00%
4747 Bethesda Venture | Disposal Group, Disposed of by Sale, Not Discontinued Operations
Investments in Unconsolidated Real Estate Ventures
Percentage of ownership interest in assets sold		80.00%			80.00%
Gross sales price		$ 196,000
Gross valuation of assets sold		245,000			$ 245,000
Mortgage assumed by real estate venture due to sale of interests		$ 175,000
J.P. Morgan Global Alternatives ("J.P. Morgan")
Investments in Unconsolidated Real Estate Ventures
Ownership interest (as percent)			50.00%
Total investments in unconsolidated real estate ventures			$ 71,550	74,188
Dulles View Venture
Investments in Unconsolidated Real Estate Ventures
Ownership interest (as percent)			60.00%
Total investments in unconsolidated real estate ventures			$ 18,536
Number of Real Estate Properties | building			2
4747 Bethesda Venture
Investments in Unconsolidated Real Estate Ventures
Ownership interest (as percent)			20.00%
Total investments in unconsolidated real estate ventures			$ 8,085	10,813
Brandywine Realty Trust
Investments in Unconsolidated Real Estate Ventures
Ownership interest (as percent)			30.00%
Total investments in unconsolidated real estate ventures			$ 6,968	6,954
Other
Investments in Unconsolidated Real Estate Ventures
Total investments in unconsolidated real estate ventures			572	1,699
Certain Ventures
Investments in Unconsolidated Real Estate Ventures
Total investments in unconsolidated real estate ventures			0	0
Investments in unconsolidated real estate ventures
Investments in Unconsolidated Real Estate Ventures
Property Management Fee Revenue			$ 10,900	16,300	$ 21,700
1101 17th Street | Canadian Pension Plan Investment Board (CPPIB)
Investments in Unconsolidated Real Estate Ventures
Total investments in unconsolidated real estate ventures				$ 0

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