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Equity-Based Compensation (Tables) | 9 Months Ended
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Sep. 30, 2012
Share-based Compensation [Abstract] |
Schedule of Equity Based Compensation Expense | Unit-based compensation expense related to the Partnership and stock-based compensation expense allocated to our Predecessor that was included in our condensed consolidated statements of operations was as follows (in thousands):
| Three Months Ended September 30, 2012 |  | Nine Months Ended September 30, 2012
| 2011 |  | 2012 |  | 2011 |  | 2012
| Predecessor |  |  |  | Predecessor |  |
Phantom common units | $ | — |  |  | $ | 6 |  |  | $ | — |  |  | $ | 6 |
Predecessor allocated expense | 206 |  |  | 241 |  |  | 587 |  |  | 810 |
Total equity-based compensation expense | $ | 206 |  |  | $ | 247 |  |  | $ | 587 |  |  | $ | 816 |
Schedule of Nonvested Share Activity | A summary of our phantom unit award activity for the nine months ended September 30, 2012, is set forth below:
| Number of Phantom Common Units |  | Weighted-Average Grant Date Fair Value
Nonvested at January 1, 2012 | — |  |  | — |
Granted | 32,500 |  |  | 23.09 |
Nonvested at September 30, 2012 | 32,500 |  |  | 23.09 |

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- Definition Tabular disclosure of the amount of total share-based compensation cost, including the amounts attributable to each share-based compensation plan and any related tax benefits. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Tabular disclosure of the changes in outstanding nonvested shares. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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