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Note 3 - Earnings Per Common Share (Tables) | 9 Months Ended
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Sep. 30, 2025
Notes Tables |
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] |
|  | Three Months Ended September 30, |  |  | Nine Months Ended September 30, |
|  | 2025 |  |  | 2024 |  |  | 2025 |  |  | 2024 |
|  | (In Thousands, Except Shares and Per Share Data) |
Earnings per common share |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Weighted average common shares outstanding |  |  | 54,619,175 |  |  |  | 54,549,664 |  |  |  | 54,605,442 |  |  |  | 54,518,996 |
Net income available to common stockholders |  | $ | 65,571 |  |  | $ | 59,907 |  |  | $ | 190,188 |  |  | $ | 162,038 |
Basic earnings per common share |  | $ | 1.20 |  |  | $ | 1.10 |  |  | $ | 3.48 |  |  | $ | 2.97 |
Weighted average common shares outstanding |  |  | 54,619,175 |  |  |  | 54,549,664 |  |  |  | 54,605,442 |  |  |  | 54,518,996 |
Dilutive effects of assumed exercise of stock options and vesting of performance shares |  |  | 48,780 |  |  |  | 92,918 |  |  |  | 57,621 |  |  |  | 96,651 |
Weighted average common and dilutive potential common shares outstanding |  |  | 54,667,955 |  |  |  | 54,642,582 |  |  |  | 54,663,063 |  |  |  | 54,615,647 |
Net income available to common stockholders |  | $ | 65,571 |  |  | $ | 59,907 |  |  | $ | 190,188 |  |  | $ | 162,038 |
Diluted earnings per common share |  | $ | 1.20 |  |  | $ | 1.10 |  |  | $ | 3.48 |  |  | $ | 2.97 |

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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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