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Note 6 - Earnings Per Share (Tables) | 9 Months Ended
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Sep. 30, 2023
Notes Tables |
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] |
|  | Three Months Ended September 30, |  |  | Nine Months Ended September 30, |
|  | 2023 |  |  | 2022 |  |  | 2023 |  |  | 2022 |
|  | (In thousands, except share and per share data) |
Net income |  | $ | 82,371 |  |  | $ | 99,035 |  |  | $ | 271,598 |  |  | $ | 263,041 |
Weighted-average shares: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Basic weighted-average number of common shares outstanding |  |  | 72,568,518 |  |  |  | 73,956,052 |  |  |  | 72,546,149 |  |  |  | 74,743,941 |
Dilutive effect of weighted-average outstanding common share equivalents: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
RSUs |  |  | 321,896 |  |  |  | 286,000 |  |  |  | 301,758 |  |  |  | 324,291 |
Diluted weighted-average number of common shares outstanding |  |  | 72,890,414 |  |  |  | 74,242,052 |  |  |  | 72,847,907 |  |  |  | 75,068,232 |
Average restricted stock units with anti-dilutive effect |  |  | — |  |  |  | 13,534 |  |  |  | 2,098 |  |  |  | 48,073 |
Earnings per common share: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Basic |  | $ | 1.14 |  |  | $ | 1.34 |  |  | $ | 3.74 |  |  | $ | 3.52 |
Diluted |  | $ | 1.13 |  |  | $ | 1.33 |  |  | $ | 3.73 |  |  | $ | 3.50 |

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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/2009/role/commonPracticeRef -Topic 260 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482662/260-10-50-1 + Details
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