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Stock-based compensation (Tables) | 12 Months Ended
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Dec. 31, 2021
Executive Officers |
Schedule of Unvested Restricted Stock Units Roll Forward |
(Not in thousands) | Shares |  | Weighted-average grant date fair value
Non-vested at January 1, 2019 | 382,186 | $ | 36.41
Granted | 218,169 |  | 55.55
Performance Shares Quantity Adjustment | 15,061 |  | 55.72
Vested | (270,051) |  | 44.73
Non-vested at December 31, 2019 | 345,365 | $ | 41.68
Granted | 253,943 |  | 42.49
Performance Shares Quantity Adjustment | (7) |  | 48.79
Vested | (234,421) |  | 42.64
Forfeited | (6,368) |  | 44.26
Non-vested at December 31, 2020 | 358,512 | $ | 41.23
Granted | 191,479 |  | 69.38
Performance Shares Quantity Adjustment | 54,306 |  | 54.21
Vested | (273,974) |  | 55.11
Forfeited | (8,440) |  | 43.48
Non-vested at December 31, 2021 | 321,883 | $ | 47.98
Directors |
Schedule of Unvested Restricted Stock Units Roll Forward |
(Not in thousands) | Restricted stock |  | Weighted-average grant date fair value | RSU |  | Weighted-average grant date fair value
Non-vested at January 1, 2019 | - |  | - | - |  | -
Granted | 1,052 | $ | 49.25 | 27,449 | $ | 57.64
Vested | (1,052) |  | 49.25 | (27,449) |  | 57.64
Forfeited | - |  | - | - |  | -
Non-vested at December 31, 2019 | - |  | - | - |  | -
Granted | - | $ | - | 43,866 | $ | 35.47
Vested | - |  | - | (43,866) |  | 35.47
Forfeited | - |  | - | - |  | -
Non-vested at December 31, 2020 | - |  | - | - |  | -
Granted | - | $ | - | 20,638 | $ | 78.20
Vested | - |  | - | (20,638) |  | 78.20
Forfeited | - |  | - | - |  | -
Non-vested at December 31, 2021 | - |  | - | - |  | -

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- Definition Tabular disclosure of the change in restricted stock units (RSUs). + References No definition available. + Details
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