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Earnings Per Share (Tables) | 6 Months Ended
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Jun. 30, 2013
Earnings Per Share [Abstract] |
Summary of Numerator and Denominator of Basic and Fully Diluted Earnings Per Common Share | A summary of the numerator and denominator of the basic and diluted earnings per common share is presented below:
|  | Three Months Ended |  |  | Three Months Ended |
|  | June 30, 2013 |  |  | June 30, 2012 |
|  | Income |  |  | Shares |  |  | Per Share |  |  | Income |  |  | Shares |  |  | Per Share |
|  | (Numerator) |  |  | (Denominator) |  |  | Amount |  |  | (Numerator) |  |  | (Denominator) |  |  | Amount |
Net income |  | $ | 16,235 |  |  |  |  |  |  |  |  |  |  | $ | 7,262 |  |  |  |  |  |  |  |  |
Less: Preferred stock dividends |  |  | (32 | ) |  |  |  |  |  |  |  |  |  |  | (63 | ) |  |  |  |  |  |  |  |
Less: Income attributable to participating securities |  |  | (763 | ) |  |  |  |  |  |  |  |  |  |  | (87 | ) |  |  |  |  |  |  |  |
Basic Earnings Per Share: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Income allocated to common stockholders |  |  | 15,440 |  |  |  | 10,687 |  |  | $ | 1.44 |  |  |  | 7,112 |  |  |  | 8,325 |  |  | $ | 0.85 |
Effect of Dilutive Securities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stock options |  |  | — |  |  |  | 162 |  |  |  |  |  |  |  | — |  |  |  | 215 |  |  |  |  |
Convertible preferred stock |  |  | 32 |  |  |  | 199 |  |  |  |  |  |  |  | 63 |  |  |  | 705 |  |  |  |  |
Warrants |  |  | — |  |  |  | — |  |  |  |  |  |  |  | — |  |  |  | 406 |  |  |  |  |
Diluted Earnings Per Share: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Income available to common stockholders and assumed conversions |  | $ | 15,472 |  |  |  | 11,048 |  |  | $ | 1.40 |  |  | $ | 7,175 |  |  |  | 9,651 |  |  | $ | 0.74 |
|  | Six Months Ended |  |  | Six Months Ended |
|  | June 30, 2013 |  |  | June 30, 2012 |
|  | Income |  |  | Shares |  |  | Per Share |  |  | Income |  |  | Shares |  |  | Per Share |
|  | (Numerator) |  |  | (Denominator) |  |  | Amount |  |  | (Numerator) |  |  | (Denominator) |  |  | Amount |
Net income |  | $ | 36,622 |  |  |  |  |  |  |  |  |  |  | $ | 14,230 |  |  |  |  |  |  |  |  |
Less: Preferred stock dividends |  |  | (66 | ) |  |  |  |  |  |  |  |  |  |  | (244 | ) |  |  |  |  |  |  |  |
Less: Income attributable to participating securities |  |  | (1,274 | ) |  |  |  |  |  |  |  |  |  |  | (105 | ) |  |  |  |  |  |  |  |
Basic Earnings Per Share: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Income allocated to common stockholders |  |  | 35,282 |  |  |  | 10,669 |  |  | $ | 3.31 |  |  |  | 13,881 |  |  |  | 7,326 |  |  | $ | 1.89 |
Effect of Dilutive Securities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stock options |  |  | — |  |  |  | 160 |  |  |  |  |  |  |  | — |  |  |  | 229 |  |  |  |  |
Convertible preferred stock |  |  | 66 |  |  |  | 210 |  |  |  |  |  |  |  | 244 |  |  |  | 956 |  |  |  |  |
Warrants |  |  | — |  |  |  | — |  |  |  |  |  |  |  | — |  |  |  | 303 |  |  |  |  |
Diluted Earnings Per Share: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Income available to common stockholders and assumed conversions |  | $ | 35,348 |  |  |  | 11,039 |  |  | $ | 3.20 |  |  | $ | 14,125 |  |  |  | 8,814 |  |  | $ | 1.60

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- Definition Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
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