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Consolidated Statements of Cash Flows (Parenthetical) - USD ($) $ in Thousands | 9 Months Ended
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Sep. 30, 2017 | Sep. 30, 2016
Supplemental disclosure: |  |
Capitalized interest | $ 2,975 | $ 10,023
BRANDYWINE OPERATING PARTNERSHIP, L.P. |  |
Supplemental disclosure: |  |
Capitalized interest | $ 2,975 | $ 10,023

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