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CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY (Parenthetical) - $ / shares | 3 Months Ended | 9 Months Ended
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Sep. 30, 2023 | Sep. 30, 2022 | Sep. 30, 2023 | Sep. 30, 2022
Statement of Stockholders' Equity [Abstract] |  |  |  |
Cash dividends declared (in dollars per share) | $ 0.32 | $ 0.30 | $ 0.96 | $ 0.89
Treasury stock issued for restricted stock awards (in shares) | 3,795 |  | 35,836 | 4,250
Forfeitures of restricted stock awards (in shares) | 1,404 | 18,943 | 51,834 | 74,168
Repurchase of S&T Stock (in shares) | 0 | 117,283 | 739,426 | 268,503

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