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Investments in Real Estate - Additional Information (Details) ft² in Thousands, $ in Thousands | 12 Months Ended |
--- | --- | ---
Dec. 31, 2019 USD ($) a ft² | Dec. 31, 2018 USD ($)
Real Estate [Line Items] |  |
Below-market leases, net of accretion | $ 19,090 | $ 17,923
Future accretion, year 1 | 2,550 |
Future accretion, year 2 | 2,210 |
Future accretion, year 3 | 1,931 |
Future accretion, year 4 | 1,931 |
Future accretion, year 5 | $ 1,931 |
Area of Real Estate Property | a | 57 |
ALT Fairburn JV |  |
Real Estate [Line Items] |  |
Business Acquisition, Percentage of Voting Interests Acquired | 90.00% |
Columbus, Ohio |  |
Real Estate [Line Items] |  |
Payments to acquire land | $ 3,225 |
Area of Real Estate Property | a | 23.6 |
Speculative Distribution Facility | ft² | 320 |
ALT Fairburn JV |  |
Real Estate [Line Items] |  |
Area of Real Estate Property | a | 81 |
Speculative Distribution Facility | ft² | 910 |
Payments to Acquire Businesses and Interest in Affiliates | $ 10,088 |

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- Definition Amount of amortization income for leases with a finite life acquired as part of a real property acquisition at below market lease rate expected to be recognized during the next fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. + References No definition available. + Details
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