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Consolidated Statements of Stockholders' Equity (Parentheticals) - $ / shares | 12 Months Ended
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Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Stock issued for employee stock purchase plan, shares (in shares) | 53,161 | 42,510 | 59,475
Stock issued for compensation plans, shares (in shares) | 414,435 | 352,004 | 429,423
Stock repurchased (in shares) |  | 2,257,049 | 4,432,762
Cash dividends, per share (in dollars per share) | $ 0.84 | $ 0.80 | $ 0.76
Spirit |  |  |
Stock issued for acquisition, shares (in shares) |  |  | 18,275,074

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