Amount of capital expenditure attributable to discontinued operations.

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Amount of cash inflow (outflow) of investing activities of discontinued operations. Investing activity cash flows include making and collecting loans and acquiring and disposing of debt or equity instruments and property, plant, and equipment and other productive assets.

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Amount of cash inflow (outflow) of operating activities of discontinued operations. Operating activity cash flows include transactions, adjustments, and changes in value not defined as investing or financing activities.

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Amount of depreciation and amortization expense attributable to disposal group, including, but not limited to, discontinued operation.

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Discontinued Operations - Schedule of Cash Flows from Discontinued Operations (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
1899 Pennsylvania Avenue [Member]
Statements of Cash Flows:
Cash provided by operating activities		$ 3,262
Additional Cash Flow information:
Depreciation and amortization		$ 690
1899 Pennsylvania Avenue and Liberty Place [Member]
Statements of Cash Flows:
Cash provided by operating activities			$ 9,732
Cash provided by investing activities			148,814
Additional Cash Flow information:
Depreciation and amortization	$ 2,362		7,087
Additions to real estate			$ (1,493)