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Net Income Per Limited Partner Unit (Details 2) (USD $)	3 Months Ended	6 Months Ended
	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Basic and Diluted Net Income per Limited Partner Unit
Basic net income per limited partner unit impact (in dollars per unit)	$ (0.19)	$ (0.33)	$ (0.18)
Diluted net income per limited partner unit impact (in dollars per unit)	$ (0.20)	$ (0.33)	$ (0.18)

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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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