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Share-Based Compensation Plans (Tables) | 12 Months Ended
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Dec. 31, 2021
Share-based Payment Arrangement [Abstract] |
Schedule of activity of stock options and restricted stock units | The following table summarizes activity regarding stock options and restricted stock units since December 31, 2018:
Stock Options |  | Restricted Stock Units
|  | Shares |  | Weighted Average Price |  |  |  | Shares |  | Weighted Average Price
Balance, December 31, 2018 |  | 40,000 |  |  | $ | 24.48 |  |  | Balance, December 31, 2018 |  | 476,586 |  |  | $ | 63.52 |
Granted |  | — |  |  | — |  |  | Granted |  | 169,766 |  |  | $ | 64.34 |
Expired |  | — |  |  | — |  |  | Forfeited |  | (2,545) |  |  | $ | 71.88 |
Exercised |  | (20,000) |  |  | $ | 24.48 |  |  | Vested |  | (226,229) |  |  | $ | 51.64 |
Balance, December 31, 2019 |  | 20,000 |  |  | $ | 24.48 |  |  | Balance, December 31, 2019 |  | 417,578 |  |  | $ | 70.24 |
Granted |  | — |  |  | — |  |  | Granted |  | 137,771 |  |  | $ | 81.56 |
Expired |  | — |  |  | — |  |  | Forfeited |  | (984) |  |  | $ | 79.17 |
Exercised |  | (20,000) |  |  | $ | 24.48 |  |  | Vested |  | (156,447) |  |  | $ | 72.72 |
Balance, December 31, 2020 |  | — |  |  | — |  |  | Balance, December 31, 2020 |  | 397,918 |  |  | $ | 73.16 |
Granted |  | — |  |  | — |  |  | Granted |  | 129,859 |  |  | $ | 96.32 |
Expired |  | — |  |  | — |  |  | Forfeited |  | (2,242) |  |  | $ | 78.86 |
Exercised |  | — |  |  | — |  |  | Vested |  | (121,067) |  |  | $ | 77.86 |
Balance, December 31, 2021 |  | — |  |  | — |  |  | Balance, December 31, 2021 |  | 404,468 |  |  | $ | 79.16 |

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- Definition Tabular disclosure for stock option plans. Includes, but is not limited to, outstanding awards at beginning and end of year, grants, exercises, forfeitures, and weighted-average grant date fair value. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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