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Consolidated Statements of Changes in Stockholders' Equity (unaudited) (Parenthetical) - $ / shares | 3 Months Ended | 9 Months Ended
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Sep. 30, 2024 | Sep. 30, 2023 | Sep. 30, 2024 | Sep. 30, 2023
Consolidated Statements of Changes in Stockholders' Equity (unaudited) [Abstract] |  |  |  |
Cash dividends - per share (in dollars per share) | $ 0.34 | $ 0.32 | $ 0.98 | $ 0.92
Issuance of common stock for acquisition (in shares) |  | 4,322,999 |  | 4,322,999
Purchase of treasury shares (in shares) |  | 68,500 | 7,600 | 155,500
Net issuance of shares to employee benefit plans and other stock plans (in shares) | 11,459 | 6,334 | 74,529 | 62,275

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