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Note 5. Earnings Per Common Share (Tables) | 6 Months Ended
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Jun. 30, 2011
Schedule of Calculation of Numerator and Denominator in Earnings Per Share [Table Text Block] |
|  | Three Months Ended June 30, |  |  | Six Months Ended June 30, |
|  | 2011 |  |  | 2010 |  |  | 2011 |  |  | 2010 |
Numerator |  |  |  |  |  |  |  |  |  |  |  |
Net income |  | $ | 33,317 |  |  | $ | 17,084 |  |  | $ | 76,674 |  |  | $ | 38,928 |
Preferred stock dividends |  |  | (138 | ) |  |  | (3,409 | ) |  |  | (276 | ) |  |  | (6,817 | )
Net income applicable to common shares for basic and diluted earnings per share |  | $ | 33,179 |  |  | $ | 13,675 |  |  | $ | 76,398 |  |  | $ | 32,111 |
Denominator |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Basic weighted average common shares |  |  | 279,347 |  |  |  | 248,549 |  |  |  | 278,901 |  |  |  | 245,371 |
Dilutive stock options and restricted stock |  |  | 16,409 |  |  |  | 17,825 |  |  |  | 17,119 |  |  |  | 18,497 |
Diluted weighted average common shares |  |  | 295,756 |  |  |  | 266,374 |  |  |  | 296,020 |  |  |  | 263,868 |
Basic earnings per common share |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net income applicable to common shares |  | $ | 0.12 |  |  | $ | 0.06 |  |  | $ | 0.27 |  |  | $ | 0.13 |
Diluted earnings per common share |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net income applicable to common shares |  | $ | 0.11 |  |  | $ | 0.05 |  |  | $ | 0.26 |  |  | $ | 0.12 |

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- Definition Tabular disclosure of the numerators and the denominators of the basic and diluted per-share (or per-unit) computations for income from continuing operations, including the effect that has been given to preferred dividends. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Topic 260 -SubTopic 10 -Publisher FASB -Number -Article -Subparagraph (a) -Name Accounting Standards Codification -Paragraph 1 -Section 50 -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
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