Discontinued Operations - Schedule of Cash Flows from Discontinued Operations (Details) - 1899 Pennsylvania Avenue [Member] $ in Thousands	12 Months Ended
	Dec. 31, 2020 USD ($)	[1]
Statements of Cash Flows:
Cash provided by operating activities	$ 5,522
Cash provided by investing activities	89,206	[2]
Cash used in financing activities	(96,896)
Additional Cash Flow Information:
Depreciation and amortization	$ 690

[1] Represents revenues, expenses, net income, and cash flow information of 1899 Pennsylvania Avenue.

[2] Represents net proceeds from the sale of 1899 Pennsylvania Avenue.