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v3.19.3.a.u2

Acquisition, Disposals and Assets Held for Sale Dispositions and Assets Held for Sale (Details) $ in Thousands | 1 Months Ended | 3 Months Ended | 12 Months Ended
--- | --- | --- | ---
Jan. 31, 2020 USD ($) | Sep. 30, 2019 USD ($) | Mar. 31, 2019 USD ($) | Dec. 31, 2019 USD ($) ft² | Dec. 31, 2018 USD ($) ft² | Dec. 31, 2017 USD ($)
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |
Proceeds from Sale of Property Held-for-sale |  |  |  |  | $ 427,400 |
Gain on sale of real estate |  |  |  | $ (104,991) | (52,183) | $ 0
Assets held for sale |  |  |  | 168,412 | 78,981 |
Liabilities related to assets held for sale |  |  |  | $ 0 | $ 3,717 |
Commerce Executive/Commerce Metro Land [Member] |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |
Gain on sale of real estate |  |  | $ (39,000) |  |  |
Prudential Global Investment Management (PGIM) [Member] |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |
Area of real estate property (in square feet) | ft² |  |  |  | 552,000 |  |
Equity Method Investment, Ownership Percentage Sold |  |  |  | 50.00% |  |
1600 K Street [Member] |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |
Gain on sale of real estate |  | $ (8,100) |  |  |  |
Central Place Tower [Member] |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |
Gain on sale of real estate |  |  |  | $ (53,400) |  |
Commerce Executive / Commerce Metro Land, 1600 K Street [Domain] |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |
Area of real estate property (in square feet) | ft² |  |  |  | 479,799 |  |
Proceeds from Sale of Property Held-for-sale |  |  |  | $ 165,350 |  |
Proceeds from sale of real estate |  |  |  | 164,815 |  |
Gain on sale of real estate |  |  |  | $ (51,635) |  |
Reston, Virginia [Member] | Commerce Executive/Commerce Metro Land [Member] | Commercial Segment [Member] |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |
Area of real estate property (in square feet) | ft² |  |  |  | 388,562 | 388,562 |
Proceeds from Sale of Property Held-for-sale |  |  |  | $ 114,950 |  |
Proceeds from sale of real estate |  |  |  | 117,676 |  |
Gain on sale of real estate |  |  |  | (39,033) |  |
Assets held for sale |  |  |  |  | $ 78,981 |
Liabilities related to assets held for sale |  |  |  |  | $ 3,717 |
Proceeds from Sale of Real Estate Held-for-Investment, Reimbursements |  |  |  | $ 4,000 |  |
Washington, D.C. [Member] | 1600 K Street [Member] | Commercial Segment [Member] |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |
Area of real estate property (in square feet) | ft² |  |  |  | 82,653 |  |
Proceeds from Sale of Property Held-for-sale |  |  |  | $ 43,000 |  |
Proceeds from sale of real estate |  |  |  | 40,134 |  |
Gain on sale of real estate |  |  |  | $ (8,088) |  |
Vienna, Virginia [Member] | Vienna Retail [Member] | Commercial Segment [Member] |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |
Area of real estate property (in square feet) | ft² |  |  |  | 8,584 |  |
Proceeds from Sale of Property Held-for-sale |  |  |  | $ 7,400 |  |
Proceeds from sale of real estate |  |  |  | 7,005 |  |
Gain on sale of real estate |  |  |  | (4,514) |  |
National Landing, Virginia [Member] | Pen Place - Land Parcel [Member] | Other |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |
Assets held for sale |  |  |  | 73,895 |  |
Liabilities related to assets held for sale |  |  |  | 0 |  |
National Landing, Virginia [Member] | Metropolitan Park [Member] | Other |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |
Assets held for sale |  |  |  | 94,517 |  |
Liabilities related to assets held for sale |  |  |  | $ 0 |  |
National Landing, Virginia [Member] | Penn Place and Met 6, 7 and 8 [Member] | Other |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |
Proceeds from Sale of Property Held-for-sale |  |  | $ 293,900 |  |  |
Future Development |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |
Area of real estate property (in square feet) | ft² |  |  |  | 21,900,000 |  |
Future Development | Commerce Executive/Commerce Metro Land [Member] |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |
Area of real estate property (in square feet) | ft² |  |  |  | 894,000 |  |
Future Development | Penn Place and Met 6, 7 and 8 [Member] |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |
Area of real estate property (in square feet) | ft² |  |  |  | 4,100,000 |  |
Subsequent Event [Member] | Metropolitan Park [Member] |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |
Proceeds from Sale of Property Held-for-sale | $ 155,000 |  |  |  |  |
Subsequent Event [Member] | National Landing, Virginia [Member] | Metropolitan Park [Member] | Other |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |
Increase Over Previously Disclosed Contract Price | $ 11,000 |  |  |  |  |

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