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Employee Benefit Plans (Tables) | 6 Months Ended
--- | ---
Jun. 30, 2021
Share-based Payment Arrangement, Noncash Expense [Abstract] |
Restricted Shares Activity And Related Information | A summary of the Company’s restricted shares activity and related information is presented below:
| Six months ended June 30,
| 2021 | 2020
Restricted Awards | Average Market Price at Grant | Restricted Awards | Average Market Price at Grant
Outstanding at January 1 | 158,554 |  | $ | 67.40 |  | 148,083 |  | $ | 62.62 |
Granted | 38,036 |  | 76.65 |  | 37,103 |  | 67.40 |
Forfeited | — |  | — |  | — |  | — |
Vested | (52,050) |  | 61.23 |  | (26,450) |  | 49.58 |
Outstanding at June 30 | 144,540 |  | $ | 71.75 |  | 158,736 |  | $ | 65.91 |
Information regarding stock-based compensation associated with restricted shares is provided in the following table (in thousands):
| Three months ended June 30 | Six months ended June 30,
| 2021 | 2020 | 2021 | 2020
Stock-based compensation expense associated with restricted shares | $ | 691 |  | $ | 681 |  | $ | 1,475 |  | $ | 1,310 |
At period-end: |  |  | June 30, 2021 |
Unrecognized stock-based compensation expense associated with restricted shares |  |  | $ | 6,016 |  |
Weighted average period (in years) in which the above amount is expected to be recognized |  |  | 3.2 |
Pension and Other Postretirement Benefits | The following table presents the components of the Company's net periodic benefit cost, which is included in the line item "other expenses" in the consolidated statements of income, (in thousands):
| Three months ended June 30, | Six months ended June 30,
2021 | 2020 | 2021 | 2020
Components of net periodic cost: |  |  |  |
Interest cost | $ | 83 |  | $ | 112 |  | $ | 166 |  | $ | 224 |
Expected return on plan assets | (205) |  | (203) |  | (410) |  | (406) |
Net amortization and deferral | 280 |  | 272 |  | 561 |  | 544 |
Net Periodic Pension Cost | $ | 158 |  | $ | 181 |  | $ | 317 |  | $ | 362 |

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