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Note 5 - Earnings Per Share (Tables) | 3 Months Ended
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Mar. 31, 2019
Notes Tables |
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] |
|  | Three months ended March 31, |
|  | 2019 |  |  | 2018 |
|  | (In thousands, except share and per share data) |
Net income |  | $ | 66,679 |  |  | $ | 63,816 |
Weighted-average shares: |  |  |  |  |  |  |  |
Basic weighted-average number of common shares outstanding |  |  | 80,455,317 |  |  |  | 81,123,380 |
Dilutive effect of weighted-average outstanding common share equivalents |  |  |  |  |  |  |  |
Warrants |  |  | — |  |  |  | 295,453 |
RSUs |  |  | 247,817 |  |  |  | 261,612 |
Diluted weighted-average number of common shares outstanding |  |  | 80,703,134 |  |  |  | 81,680,445 |
Average stock options and restricted stock units with anti-dilutive effect |  |  | 44,545 |  |  |  | 38,906 |
Earnings per common share: |  |  |  |  |  |  |  |
Basic |  | $ | 0.83 |  |  | $ | 0.79 |
Diluted |  | $ | 0.83 |  |  | $ | 0.78 |

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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://fasb.org/us-gaap/role/ref/legacyRef -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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