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v3.19.3.a.u2

The Combination Narrative (Details) shares in Thousands, $ in Thousands |  | 3 Months Ended | 12 Months Ended
--- | --- | --- | ---
Jul. 18, 2017 ft² building_unit properties shares | Jun. 30, 2018 USD ($) | Dec. 31, 2019 USD ($) ft² building_unit properties | Dec. 31, 2018 USD ($) | Dec. 31, 2017 USD ($)
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Bargain Purchase, Reduction Of Gain | $ |  | $ (7,600) | $ 0 | $ (7,606) | $ 24,376
Number of Real Estate Properties | properties |  |  | 62 |  |
JBG Companies [Member] |  |  |  |  |
Business Combination, Pro Forma Information, Revenue of Acquiree since Acquisition Date, Actual | $ |  |  |  |  | 71,300
Number of Real Estate Properties | properties | 30 |  |  |  |
Number of Unrelated Owners | 20 |  |  |  |
Number of Former Owners Turned Employees | 19 |  |  |  |
Number of Former Owners Turned Board Members | 3 |  |  |  |
Business Combination, Pro Forma Information, Earnings or Loss of Acquiree since Acquisition Date, Actual | $ |  |  |  |  | $ 23,100
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares | shares | 37,164 |  |  |  |
Commercial Real Estate [Member] |  |  |  |  |
Number of Real Estate Properties | properties |  |  | 44 |  |
Area of real estate property (in square feet) |  |  | 12,700,000 |  |
Commercial Real Estate [Member] | JBG Companies [Member] |  |  |  |  |
Number of Real Estate Properties | properties | 21 |  |  |  |
Area of real estate property (in square feet) | 4,100,000 |  |  |  |
Multifamily |  |  |  |  |
Number of Real Estate Properties | properties |  |  | 18 |  |
Number of Units in Real Estate Property | building_unit |  |  | 7,111 |  |
Multifamily | JBG Companies [Member] |  |  |  |  |
Number of Real Estate Properties | properties | 9 |  |  |  |
Number of Units in Real Estate Property | building_unit | 2,883 |  |  |  |
Asset under Construction | JBG Companies [Member] |  |  |  |  |
Number of Real Estate Properties | properties | 11 |  |  |  |
Area of real estate property (in square feet) | 2,500,000 |  |  |  |
Near-Term Development [Member] | JBG Companies [Member] |  |  |  |  |
Number of Real Estate Properties | properties | 2 |  |  |  |
Area of real estate property (in square feet) | 401,000 |  |  |  |
Future Development [Member] | JBG Companies [Member] |  |  |  |  |
Number of Real Estate Properties | properties | 26 |  |  |  |
Area of real estate property (in square feet) | 11,700,000 |  |  |  |
Wholly Owned Properties | Commercial Real Estate [Member] |  |  |  |  |
Area of real estate property (in square feet) |  |  | 10,700,000 |  |
Wholly Owned Properties | Commercial Real Estate [Member] | JBG Companies [Member] |  |  |  |  |
Area of real estate property (in square feet) | 2,400,000 |  |  |  |
Wholly Owned Properties | Multifamily |  |  |  |  |
Number of Units in Real Estate Property | building_unit |  |  | 5,327 |  |
Wholly Owned Properties | Multifamily | JBG Companies [Member] |  |  |  |  |
Number of Units in Real Estate Property | building_unit | 1,099 |  |  |  |
Wholly Owned Properties | Asset under Construction | JBG Companies [Member] |  |  |  |  |
Area of real estate property (in square feet) | 2,200,000 |  |  |  |
Wholly Owned Properties | Near-Term Development [Member] | JBG Companies [Member] |  |  |  |  |
Area of real estate property (in square feet) | 242,000 |  |  |  |
Wholly Owned Properties | Future Development [Member] | JBG Companies [Member] |  |  |  |  |
Area of real estate property (in square feet) | 8,500,000 |  |  |  |

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