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Partners Equity of the Operating Partnership - Number of Units and Net Income Used to Calculate Basic and Diluted Earnings Per Common Partnership Unit (Details) - USD ($) $ / shares in Units, $ in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2017 | Mar. 31, 2016
Numerator |  |
Income from continuing operations, Basic | $ 21,271 | $ 46,310
Nonforfeitable dividends allocated to unvested restricted shareholders, Basic | (99) | (105)
Distribution to preferred shareholders | (1,725) | (1,725)
Nonforfeitable dividends allocated to unvested restricted shareholders, Diluted | $ (99) | $ (105)
Denominator |  |
Basic weighted average shares outstanding (in shares) | 175,176,964 | 174,788,945
Contingent securities/Share based compensation (in shares) | 1,024,908 | 682,468
Diluted weighted average shares outstanding (in shares) | 176,201,872 | 175,471,413
Earnings per Common Partnership Unit |  |
Net income attributable to common unitholders, Basic (USD per share) | $ 0.11 | $ 0.25
Net income attributable to common unitholders, Diluted (USD per share) | $ 0.11 | $ 0.25
BRANDYWINE OPERATING PARTNERSHIP, L.P. |  |
Numerator |  |
Income from continuing operations, Basic | $ 21,271 | $ 46,310
Nonforfeitable dividends allocated to unvested restricted shareholders, Basic | (99) | (105)
Distribution to preferred shareholders | (1,725) | (1,725)
Net income attributable to non-controlling interests | (5) | (2)
Net income attributable to common unitholders, Basic | 19,442 | 44,478
Nonforfeitable dividends allocated to unvested restricted shareholders, Diluted | (99) | (105)
Net income attributable to common unitholders, Diluted | $ 19,442 | $ 44,478
Denominator |  |
Basic weighted average shares outstanding (in shares) | 176,656,763 | 176,324,047
Contingent securities/Share based compensation (in shares) | 1,024,908 | 682,468
Diluted weighted average shares outstanding (in shares) | 177,681,671 | 177,006,515
Earnings per Common Partnership Unit |  |
Net income attributable to common unitholders, Basic (USD per share) | $ 0.11 | $ 0.25
Net income attributable to common unitholders, Diluted (USD per share) | $ 0.11 | $ 0.25

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