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Pension Benefits | 6 Months Ended
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Jun. 30, 2013
Defined Benefit Pension Plans and Defined Benefit Postretirement Plans Disclosure [Abstract] |
Pension Benefits | Note 8 - Pension Benefits Pension Plans The Company has a non-contributory pension plan covering substantially all employees who meet age and service requirements (the “Qualified Pension Plan”). The Company also has a supplemental non-contributory pension plan covering certain management employees (the “Nonqualified Pension Plan” and together with the Qualified Pension Plan, the “Pension Plans”). Components of Net Periodic Benefit Cost for the Pension Plans 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,
| 2013 |  | 2012 |  | 2013 |  | 2012
| (in thousands)
Service cost | $ | 1,914 |  |  | $ | 1,515 |  |  | $ | 3,146 |  |  | $ | 2,465 |
Interest cost | 468 |  |  | 393 |  |  | 813 |  |  | 689 |
Expected return on plan assets that reduces periodic pension costs | (483 | ) |  | (352 | ) |  | (769 | ) |  | (572 | )
Amortization of prior service costs | 5 |  |  | 9 |  |  | 9 |  |  | 9 |
Amortization of net actuarial loss | 414 |  |  | 293 |  |  | 611 |  |  | 394 |
Net periodic benefit cost | $ | 2,318 |  |  | $ | 1,858 |  |  | $ | 3,810 |  |  | $ | 2,985 |
Prior service costs are amortized on a straight-line basis over the average remaining service period of active participants. Gains and losses in excess of 10 percent of the greater of the benefit obligation and the market-related value of assets are amortized over the average remaining service period of active participants. Contributions Subsequent to June 30, 2013, the Company made a $4.3 million payment, which satisfied its $373,000 contribution requirement for the 2013 plan year, as well as funded a portion of its expected contribution requirement for the 2014 plan year.

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- Definition The entire disclosure for pension and other postretirement benefits. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -URI http://asc.fasb.org/topic&trid=2235017 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Implementation Guide (Q and A) -Number FAS88 -Paragraph 63 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. 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