Discontinued Operations - Schedule of Results of Operations Related to Discontinued Operations (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2020 USD ($)
Expenses:
Income from discontinued operations, net	$ 1,521
1899 Pennsylvania Avenue [Member]
Revenues:
Rental revenue	3,563	[1]
Other income	99	[1]
Total revenues	3,662	[1]
Expenses:
Operating	1,451	[1]
Depreciation and amortization	690	[1]
Total expenses	2,141	[1]
Income from discontinued operations, net	$ 1,521	[1]

[1] Represents revenues, expenses, net income and cash flow information of 1899 Pennsylvania Avenue, which was sold on December 24, 2020.