Area of estimated potential development density.

No definition available.

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- Definition

Contract Price for Sale of Real Estate

+ References

No definition available.

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- Definition

Area of a real estate property.

+ References

No definition available.

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- Definition

Amount of assets held-for-sale that are not part of a disposal group.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 360
-SubTopic 10
-Section 15
-Paragraph 4
-Subparagraph (b)(2)
-URI http://asc.fasb.org/extlink&oid=123398962&loc=d3e400-110220

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- Definition

Present value of lessee's discounted obligation for lease payments from finance lease, classified as current.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 45
-Paragraph 1
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=123391704&loc=SL77918627-209977

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- Definition

Amount, after accumulated amortization, of right-of-use asset from finance lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 45
-Paragraph 1
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=123391704&loc=SL77918627-209977

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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- Definition

Amount classified as liabilities attributable to disposal group held for sale or disposed of.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 205
-SubTopic 20
-Section 50
-Paragraph 7
-URI http://asc.fasb.org/extlink&oid=109222650&loc=SL51721683-107760

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-Name Accounting Standards Codification
-Topic 205
-SubTopic 20
-Section 50
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- Definition

The cash outflow for debt initially having maturity due after one year or beyond the normal operating cycle, if longer.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 15
-Subparagraph (b)
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Dispositions and Assets Held for Sale (Details) $ in Thousands	Apr. 13, 2022 USD ($)	Mar. 31, 2022 USD ($) ft²	Dec. 31, 2021 USD ($) ft²
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Assets held for sale		$ 891,750	$ 73,876
Liabilities related to assets held for sale		$ 368,006
Finance lease right-of-use assets			$ 180,956
Disposal Group, Held-for-sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Area of Real Estate Property \| ft²		5,685
Assets held for sale		$ 891,750
Liabilities related to assets held for sale		368,006
Disposal Group, Held-for-sale \| Pen Place - Land Parcel \| Amazon
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Gross Sales Price		$ 198,000
Disposal Group, Held-for-sale \| Pen Place - Land Parcel \| Arlington, Virginia
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Area of Real Estate Property \| ft²		2,082	2,082
Assets held for sale		$ 73,876	$ 73,876
Liabilities related to assets held for sale		$ 298
Disposal Group, Held-for-sale \| Universal Buildings \| Washington, D.C
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Area of Real Estate Property \| ft²		659
Assets held for sale		$ 168,599
Liabilities related to assets held for sale		$ 15,854
Disposal Group, Held-for-sale \| 7200 Wisconsin Avenue \| Bethesda, Maryland.
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Area of Real Estate Property \| ft²		271
Assets held for sale		$ 113,471
Liabilities related to assets held for sale		$ 1,471
Disposal Group, Held-for-sale \| 1730 M Street \| Washington, D.C
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Area of Real Estate Property \| ft²		205
Assets held for sale		$ 77,284
Liabilities related to assets held for sale		$ 89,515
Disposal Group, Held-for-sale \| RTC West
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Area Of Real Estate Property Estimated For Potential Development Density \| ft²		1,400,000
Disposal Group, Held-for-sale \| RTC West \| Reston, Virginia
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Area of Real Estate Property \| ft²		1,835
Assets held for sale		$ 191,774
Liabilities related to assets held for sale		$ 121,206
Disposal Group, Held-for-sale \| Courthouse Plaza 1 and 2 \| Arlington, Virginia
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Area of Real Estate Property \| ft²		633
Assets held for sale		$ 266,746
Liabilities related to assets held for sale		139,662
Disposal Group, Held-for-sale \| 1730 M Street and Courthouse Plaza 1 and 2
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Finance lease right-of-use assets		180,500
Finance Lease Liability		$ 163,500
Disposal Group, Disposed of by Sale \| 1730 M Street and RTC-West \| Mortgage Loan [Member] \| Subsequent Event [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Repayments of Long-term Debt	$ 164,800