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Shareholders' Equity (Tables) | 3 Months Ended
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Mar. 31, 2017
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,
| 2017 |  | 2016
| 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 | 553,396 |  |  | $ | 7.55 |  |  | 696,597 |  |  | $ | 8.54 |
Restricted stock granted | 108,446 |  |  | 6.77 |  |  | 168,720 |  |  | 6.22 |
Restricted stock vested | (275,691 | ) |  | 7.94 |  |  | (317,831 | ) |  | 8.87 |
Restricted stock outstanding as of end of period | 386,151 |  |  | $ | 7.05 |  |  | 547,486 |  |  | $ | 7.63 |

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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=6415400&loc=d3e5070-113901 + Details
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