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Compensation (Tables) | 12 Months Ended
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Dec. 31, 2017
Disclosure of Compensation Related Costs, Share-based Payments [Abstract] |
Stock-Based Award Activity | The following table summarizes our stock-based award activity during the year ended December 31, 2017 (number of units in thousands):
| Number of Restricted Stock Awards |  | Number of Phantom Stock Units |  | Weighted-Average Grant-Date Fair Value
Nonvested at December 31, 2016 | 10 |  |  | — |  |  | $ | 10.20 |
Granted | 10 |  |  | — |  |  | 10.20 |
Vested | (2 | ) |  | — |  |  | 10.20 |
Assumed | — |  |  | 2,450 |  |  | 10.20 |
Forfeited | — |  |  | (4 | ) |  | 10.20 |
Nonvested at December 31, 2017 | 18 |  |  | 2,446 |  |  | $ | 10.20 |

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- Definition Tabular disclosure of the number and weighted-average grant date fair value for restricted stock units that were outstanding at the beginning and end of the year, and the number of restricted stock units that were granted, vested, or forfeited during the year. + 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)(1) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 + Details
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