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Acquired Intangible Assets And Liabilities (Schedule of Estimated Annual Amortization of Intangible Assets) (Details) - USD ($) $ in Thousands | Mar. 31, 2018 | Dec. 31, 2017
--- | --- | ---
Acquired in-place lease value |  |
Finite-Lived Intangible Assets [Line Items] |  |
Remainder of 2018 | $ 153,591 |
2019 | 148,067 |
2020 | 112,195 |
2021 | 87,579 |
2022 | 65,627 |
Thereafter | 245,828 |
Net | 812,887 | $ 859,567
Tenant relationships |  |
Finite-Lived Intangible Assets [Line Items] |  |
Remainder of 2018 | 110,349 |
2019 | 142,181 |
2020 | 141,799 |
2021 | 141,799 |
2022 | 141,799 |
Thereafter | 1,107,402 |
Net | $ 1,785,329 |

X
- Definition Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized after the fifth 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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- Definition Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized in the remainder of the 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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- Definition Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized during the second 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 Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(3) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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