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Performance Incentive Plan (Tables) | 12 Months Ended
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Dec. 31, 2021
Share-based Payment Arrangement [Abstract] |
Schedule of Restricted Stock Activity | The following summarizes the restricted stock activity for the year ended December 31, 2021:
|  | Number of Shares |  |  | Weighted Average Share Price |
Non-vested restricted shares, January 1 |  |  | 896,044 |  |  | $ | 49.54 |
Restricted shares granted |  |  | 345,891 |  |  |  | 42.30 |
Restricted shares vested |  |  | (204,796 | ) |  |  | 40.81 |
Restricted shares forfeited |  |  | (58,684 | ) |  |  | 37.36 |
Non-vested restricted shares, December 31 |  |  | 978,455 |  |  |  | 49.54 |
Schedule of Other Grants | The following summarizes other grants made during the year ended December 31, 2021, pursuant to the 2017 Plan.
|  | Number of Shares |  |  | Weighted Average Share Price |
Other share grants under the 2017 Plan: |  |  |  |  |  |
Directors’ fees |  |  | 13,786 |  |  | $ | 45.21 |
Deferred directors’ fees |  |  | 16,471 |  |  |  | 45.27 |
|  |  | 30,257 |  |  |  | 40.28 |
Shares available under the 2017 Plan for grant, end of period |  |  | 467,259 |  |  |  |

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- Definition Tabular disclosure of activity for outstanding award under share-based payment arrangement excluding share and unit options and nonvested award. + 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 (c)(2) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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- Definition Disclosure of the number and weighted-average grant date fair value for restricted stock and restricted stock units that were outstanding at the beginning and end of the year, and the number of restricted stock and restricted stock units that were granted, vested, or forfeited during the year. + References No definition available. + Details
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