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Acquisition (Tables) | 3 Months Ended
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Mar. 31, 2012
Acquisition [Abstract] |
Schedule Of Selected Financial Information |
Revenues |  | $ | 1,822 |
Equity in earnings of equity investees |  | $ | 2,656 |
Net income |  | $ | 3,523 |
Schedule Of Pro Forma Financial Information |
|  | Three Months Ended March 31, |
|  | 2011 |
Pro forma earnings data: |  |  |  |
Revenues |  | $ | 691,554 |
Equity in earnings of equity investees |  | $ | 5,515 |
Net income |  | $ | 8,631 |
Basic and diluted earnings per unit: |  |  |  |
As reported net income per unit |  | $ | 0.11 |
Pro forma net income per unit |  | $ | 0.13 |
As reported units outstanding |  |  | 64,615 |
Pro forma units outstanding |  |  | 64,615 |

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