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Pension Benefits (Tables) | 6 Months Ended
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Jun. 30, 2014
Defined Benefit Pension Plans and Defined Benefit Postretirement Plans Disclosure [Abstract] |
Components of the net periodic benefit cost for both the Qualified and the Nonqualified Pension Plan | The following table presents the components of the net periodic benefit cost for the Pension Plans:
| For the Three Months Ended June 30, |  | For the Six Months Ended June 30,
| 2014 |  | 2013 |  | 2014 |  | 2013
| (in thousands)
Service cost | $ | 1,595 |  |  | $ | 1,914 |  |  | $ | 3,168 |  |  | $ | 3,146 |
Interest cost | 688 |  |  | 468 |  |  | 1,095 |  |  | 813 |
Expected return on plan assets that reduces periodic pension costs | (604 | ) |  | (483 | ) |  | (989 | ) |  | (769 | )
Amortization of prior service costs | 5 |  |  | 5 |  |  | 9 |  |  | 9 |
Amortization of net actuarial loss | 38 |  |  | 414 |  |  | 344 |  |  | 611 |
Net periodic benefit cost | $ | 1,722 |  |  | $ | 2,318 |  |  | $ | 3,627 |  |  | $ | 3,810 |

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- Definition Tabular disclosure of the components of net benefit costs for pension plans and/or other employee benefit plans including service cost, interest cost, expected return on plan assets, gain (loss), prior service cost or credit, transition asset or obligation, and gain (loss) recognized due to settlements or curtailments. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (h) -URI http://asc.fasb.org/extlink&oid=28361610&loc=d3e1928-114920 + Details
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