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Restricted Stock, Performance Share and Cash Awards (Tables) | 12 Months Ended
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Dec. 31, 2020
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Schedule of Restricted Stock Awards Vesting Periods | The vesting periods of the 2020, 2019 and 2018 restricted stock unit awards are as follows (in actual shares):
|  | Restricted Stock Units Granted |
Vesting Period |  | 2020 |  |  | 2019 |  |  | 2018 |
One year |  |  | 16,740 |  |  |  | 14,800 |  |  |  | 18,900 |
Two years |  |  | 8,870 |  |  |  | 12,000 |  |  |  | 12,700 |
Five years |  |  | 397,000 |  |  |  | 387,900 |  |  |  | 407,500 |
Total shares granted |  |  | 422,610 |  |  |  | 414,700 |  |  |  | 439,100 |

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