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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