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Consolidated Statement of Changes in Total Equity (Parenthetical) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2015 | Dec. 31, 2014
Statement of Partners' Capital [Abstract] |  |
Percentage Interest on Sale |  | 1.00%
Equity based compensation, tax (note 13) | $ 0.4 |

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