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Consolidated Statements of Stockholders' Equity (Parenthetical) - $ / shares | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2020 | Sep. 30, 2019 | Sep. 30, 2020 | Sep. 30, 2019
Statement of Stockholders' Equity [Abstract] |  |  |  |
Stock issued for employee stock purchase plan, shares (in shares) |  |  | 43,681 | 60,413
Stock issued for compensation plans, shares (in shares) | 29,392 | 23,199 | 273,835 | 206,176
Stock repurchased (in shares) |  |  | 4,922,336 |
Stock issued for acquisition (in shares) |  |  |  | 3,999,623
Cash dividends per share (in dollars per share) | $ 0.17 | $ 0.16 | $ 0.51 | $ 0.48

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