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(Tables) | 3 Months Ended
--- | ---
Mar. 31, 2018
Equity [Abstract] |
Schedule of Share-based Compensation, Restricted Stock and Restricted Stock Units Activity | The following table presents a rollforward of the restricted stock activity for the periods indicated:
| Three Months Ended
| March 31,
| 2018 |  | 2017
| Shares |  | Weighted Average Grant Date Fair Value Per Share |  | Shares |  | Weighted Average Grant Date Fair Value Per Share
Restricted stock outstanding as of beginning of period | 353,103 |  |  | $ | 7.01 |  |  | 553,396 |  |  | $ | 7.55 |
Restricted stock granted | 176,233 |  |  | 6.28 |  |  | 108,446 |  |  | 6.77 |
Restricted stock vested | (194,827 | ) |  | 7.37 |  |  | (275,691 | ) |  | 7.94 |
Restricted stock outstanding as of end of period | 334,509 |  |  | $ | 6.42 |  |  | 386,151 |  |  | $ | 7.05 |

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- Definition Tabular disclosure of the changes in outstanding nonvested restricted stock units. + 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=96867065&loc=d3e5070-113901 + Details
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