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Note 5. Earnings Per Common Share (Tables) | 9 Months Ended
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Sep. 30, 2011
Schedule of Calculation of Numerator and Denominator in Earnings Per Share [Table Text Block] |
|  | Three Months Ended September 30, |  |  | Nine Months Ended September 30, |
|  | 2011 |  |  | 2010 |  |  | 2011 |  |  | 2010 |
Numerator |  |  |  |  |  |  |  |  |  |  |  |
Net income |  | $ | 55,921 |  |  | $ | 19,791 |  |  | $ | 132,595 |  |  | $ | 58,719 |
Preferred stock dividends |  |  | (138 | ) |  |  | (3,408 | ) |  |  | (414 | ) |  |  | (10,225 | )
Net income applicable to common shares for basic and diluted earnings per share |  | $ | 55,783 |  |  | $ | 16,383 |  |  | $ | 132,181 |  |  | $ | 48,494 |
Denominator |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Basic weighted average common shares |  |  | 279,541 |  |  |  | 256,095 |  |  |  | 279,067 |  |  |  | 249,039 |
Dilutive stock options and restricted stock |  |  | 15,459 |  |  |  | 14,413 |  |  |  | 16,672 |  |  |  | 17,106 |
Diluted weighted average common shares |  |  | 295,000 |  |  |  | 270,508 |  |  |  | 295,739 |  |  |  | 266,145 |
Basic earnings per common share |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net income applicable to common shares |  | $ | 0.20 |  |  | $ | 0.06 |  |  | $ | 0.47 |  |  | $ | 0.19 |
Diluted earnings per common share |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net income applicable to common shares |  | $ | 0.19 |  |  | $ | 0.06 |  |  | $ | 0.45 |  |  | $ | 0.18 |

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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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