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Real Estate - Schedule of Construction in Progress (Details) - USD ($) $ in Thousands | Dec. 31, 2020 | Dec. 31, 2019 | Sep. 01, 2019
--- | --- | --- | ---
Real Estate [Line Items] |  |  |
Development in process | $ 69,477 | $ 335,644 |
Hampden House (formerly 7316 Wisconsin Avenue) |  |  |
Real Estate [Line Items] |  |  |
Development in process | 50,723 | 44,638 | $ 42,600
The Waycroft |  |  |
Real Estate [Line Items] |  |  |
Development in process | 8,651 | 255,443 |
Ashbrook Marketplace |  |  |
Real Estate [Line Items] |  |  |
Development in process | 153 | 19,128 |
Other |  |  |
Real Estate [Line Items] |  |  |
Development in process | $ 9,950 | $ 16,435 |

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- Definition The current amount of expenditures for a real estate project that has not yet been completed. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.10) -URI http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910 + Details
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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. + Details
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