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Consolidated Statements of Stockholders' Equity (Parenthetical) - $ / shares | 3 Months Ended | 6 Months Ended
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Jun. 30, 2021 | Jun. 30, 2020 | Jun. 30, 2021 | Jun. 30, 2020
Statement of Stockholders' Equity [Abstract] |  |  |  |
Stock issued for employee stock purchase plan, shares (in shares) |  |  | 60,697 | 43,681
Stock issued for compensation plans, shares (in shares) | 40,937 | 28,058 | 379,226 | 244,443
Stock repurchased (in shares) |  |  | 130,916 | 4,922,336
Cash dividends per share (in dollars per share) | $ 0.18 | $ 0.17 | $ 0.36 | $ 0.34

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