Real Estate Properties - Summary of Properties Held-For-Sale (Details) - Held-for-sale	Sep. 30, 2024 ft² building
Real Estate Properties [Line Items]
Number of Properties	3
Number of Buildings	7
Square footage (in sqft) | ft²	812,007
1250 H Street, NW
Real Estate Properties [Line Items]
Number of Properties	1
Number of Buildings	1
Square footage (in sqft) | ft²	196,490
206 East 9th Street (Capitol Tower)
Real Estate Properties [Line Items]
Number of Properties	1
Number of Buildings	1
Square footage (in sqft) | ft²	175,510
Bridgepoint Square
Real Estate Properties [Line Items]
Number of Properties	1
Number of Buildings	5
Square footage (in sqft) | ft²	440,007