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Stock-Based Compensation (Tables) | 6 Months Ended
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Jun. 30, 2022
Share-Based Payment Arrangement [Abstract] |
Summary of Activity | The following table summarizes the weighted-average assumptions used to determine the awards grant date fair value:
|  | Six Months Ended June 30,
Restricted Shares and Performance Based Shares |  | 2022 |  | 2021
Expected quarterly dividends per share |  | $ | 0.3475 |  |  | $ | 0.3275 |
Risk-free interest rate |  | 1.46 | % |  | 0.32 | %
Market-Based Shares |  |  |  |
Dividend yield |  | — | % |  | 2.76 | %
Expected volatility |  | — | % |  | 33.69 | %
Risk-free interest rate |  | — | % |  | 0.29 | %
The following table summarizes activity in restricted stock awards, including performance-based and market-based shares for the six months ended June 30, 2022:
| Restricted Stock |  |
| Shares |  | Weighted- Average Grant Date Fair Value |  |  |  |
Outstanding at December 31, 2021 | 167,270 |  |  | $ | 43.71 |  |  |  |  |
Granted | 193,943 |  |  | 41.04 |  |  |  |  |
Released | (171,968) |  |  | 42.48 |  |  |  |  |
Forfeited | (2,264) |  |  | 42.84 |  |  |  |  |
Outstanding at June 30, 2022 | 186,981 |  |  | $ | 42.09 |  |  |  |  |
The following table provides additional information concerning restricted stock activity, including performance-based and market-based shares:
|  | Six Months Ended June 30,
Restricted Stock |  | 2022 |  | 2021
Weighted-average grant date fair value |  | $ | 41.04 |  |  | $ | 44.08 |
Total fair value of restricted shares that vested (in thousands) |  | $ | 7,782 |  |  | $ | 9,890 |

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- Definition Tabular disclosure of share-based payment arrangement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 1 -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5047-113901 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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