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Employee Benefit Plans | 9 Months Ended
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Sep. 30, 2016
Compensation and Retirement Disclosure [Abstract] |
Employee Benefit Plans | Employee Benefit Plans The following are components of the net periodic benefit cost for the pension and post-retirement benefit plans maintained by the Company for the three and nine months ended September 30, 2016 and 2015:
| Pension Benefits
(in thousands) | Three months ended September 30, |  | Nine months ended September 30,
2016 |  | 2015 |  | 2016 |  | 2015
Service cost | $ | — |  |  | $ | 59 |  |  | $ | — |  |  | $ | 177 |
Interest cost | 49 |  |  | 45 |  |  | 145 |  |  | 136 |
Recognized net actuarial loss | 36 |  |  | 379 |  |  | 109 |  |  | 1,137 |
Benefit cost | $ | 85 |  |  | $ | 483 |  |  | $ | 254 |  |  | $ | 1,450 |
| Post-retirement Benefits
(in thousands) | Three months ended September 30, |  | Nine months ended September 30,
2016 |  | 2015 |  | 2016 |  | 2015
Service cost | $ | 190 |  |  | $ | 225 |  |  | $ | 570 |  |  | $ | 675 |
Interest cost | 387 |  |  | 396 |  |  | 1,162 |  |  | 1,188 |
Amortization of prior service cost | (88 | ) |  | (136 | ) |  | (266 | ) |  | (408 | )
Recognized net actuarial loss | 192 |  |  | 379 |  |  | 576 |  |  | 1,138 |
Benefit cost | $ | 681 |  |  | $ | 864 |  |  | $ | 2,042 |  |  | $ | 2,593 |

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