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Consolidated Statement of Changes in 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] |  |  |  |
Common shares purchased and retired (in shares) | 1,445,300 | 4,200 | 2,539,041 | 43,560
Common shares issued (in shares) |  |  | 19,491 | 4,356,498
Non-vested common shares issued (in shares) | 924 | 662 | 329,024 | 211,826
Non-vested common shares forfeited (in shares) | 4,735 | 14,502 | 30,323 | 35,919
stock options exercised (in shares) | 5,143 | 18,983 | 89,411 | 117,669
Shares tendered (in shares) | 0 | 5,425 | 26,124 | 40,533
Common dividends (in dollars per share) | $ 0.34 | $ 0.31 | $ 1.62 | $ 0.93

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