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Net Income Per Limited Partner Unit (Details 2) (USD $) | 12 Months Ended
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Dec. 31, 2012 | Dec. 31, 2011
Basic and Diluted Net Income per Limited Partner Unit |  |
Basic net income per limited partner unit impact (in dollars per unit) | $ (0.11) | $ (0.22)
Diluted net income per limited partner unit impact (in dollars per unit) | $ (0.11) | $ (0.21)

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- Details
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- Definition The per unit impact on basic net income per limited partner unit in the event of allocation of undistributed earnings to incentive distribution rights holders. + References No definition available. + Details
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- Definition The per unit impact on diluted net income per limited partner unit in the event of allocation of undistributed earnings to incentive distribution rights holders. + References No definition available. + Details
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