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Shareholders' Equity (Tables) | 6 Months Ended
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Jun. 30, 2016
Equity [Abstract] |
Schedule of Common Stock Outstanding Roll Forward | The following table presents a summary of the changes in the number of common shares outstanding for the periods presented:
| Six Months Ended
| June 30,
| 2016 |  | 2015
Balance as of beginning of period | 49,047,335 |  |  | 54,739,111 |
Common stock issued under DRIP | 12,206 |  |  | 9,688 |
Common stock issued under stock and incentive plans | 214,878 |  |  | 263,829 |
Common stock forfeited for tax withholding on share-based compensation | (80,888 | ) |  | (67,296 | )
Common stock repurchased during the period | (48,444 | ) |  | (860,721 | )
Balance as of end of period | 49,145,087 |  |  | 54,084,611 |
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 |  | Six Months Ended
| June 30, |  | June 30,
| 2016 |  | 2015 |  | 2016 |  | 2015
Restricted stock outstanding as of beginning of period | 547,486 |  |  | 696,819 |  |  | 696,597 |  |  | 731,809 |
Restricted stock granted | 46,158 |  |  | 32,555 |  |  | 214,878 |  |  | 263,829 |
Restricted stock vested | (32,555 | ) |  | (32,777 | ) |  | (350,386 | ) |  | (299,041 | )
Restricted stock outstanding as of end of period | 561,089 |  |  | 696,597 |  |  | 561,089 |  |  | 696,597 |

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- Definition Tabular disclosure of the change in common stock outstanding. + References No definition available. + Details
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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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