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Consolidated Statements of Stockholders' Equity (Parenthetical) - $ / shares | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Statement of Stockholders' Equity [Abstract] |  |  |
Dividends per share | $ 0.76 | $ 0.73 | $ 0.69
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period | 19,030 | 3,275 | 72,130
Stock dividend, percentage | 5.00% | 5.00% | 5.00%
Stock dividends | 225,650 | 218,589 | 207,794
Treasury shares | 106,894 |  |
Percentage Of stocks dividend | 5.00% | 5.00% | 5.00%

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