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	6 Months Ended
	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
1899 Pennsylvania Avenue [Member]
Statements of Cash Flows:
Cash provided by operating activities		$ 2,292
Additional Cash Flow information:
Depreciation and amortization		$ 690
1899 Pennsylvania Avenue and Liberty Place [Member]
Statements of Cash Flows:
Cash provided by operating activities			$ 9,059
Cash used in investing activities			(645)
Additional Cash Flow information:
Depreciation and amortization	$ 2,348		4,725
Additions to real estate			$ (645)