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Stock Based Compensation (Tables) | 12 Months Ended
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Dec. 31, 2012
Stock Option Transactions | Stock option transactions for the year ended December 31, 2012 are summarized as follows:
|  | Options |  |  | Weighted Average Exercise Price |  |  | Aggregate Intrinsic Value |
Outstanding at December 31, 2011 |  |  | 25,201 |  |  | $ | 31.57 |  |  | $ | — |
Expired |  |  | (25,201 | ) |  | $ | 31.57 |  |  |  |  |
Outstanding at December 31, 2012 |  |  | — |  |  |  |  |  |  |  |  |
Summary of Restricted Stock Award and Restricted Stock Unit Award Transactions | Restricted stock and unit award transactions for the year ended December 31, 2012 are summarized as follows:
|  | Awards |  |  | Weighted Average Grant Date Fair Value |
Outstanding at December 31, 2011 |  |  | 1,405,281 |  |  | $ | 7.00 |
Issued |  |  | 565,137 |  |  | $ | 12.50 |
Forfeited |  |  | (17,433 | ) |  | $ | 10.92 |
Vested |  |  | (1,180,858 | ) |  | $ | 9.57 |
Outstanding at December 31, 2012 |  |  | 772,127 |  |  | $ | 7.02 |

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- Definition Disclosure of the number and weighted-average grant date fair value for restricted stock and restricted stock units that were outstanding at the beginning and end of the year, and the number of restricted stock and restricted stock units that were granted, vested, or forfeited during the year. + References No definition available. + Details
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- Definition Tabular disclosure of the number and weighted-average exercise prices (or conversion ratios) for share options (or share units) that were outstanding at the beginning and end of the year, vested and expected to vest, exercisable or convertible at the end of the year, and the number of share options or share units that were granted, exercised or converted, forfeited, and expired 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=6415400&loc=d3e5070-113901 + Details
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