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Benefit Plans (Tables) | 9 Months Ended
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Sep. 30, 2013
Compensation And Retirement Disclosure [Abstract] |
Components of Net Periodic Benefit Cost | Components of the net periodic benefit cost of the plan for the three and nine months ended September 30, 2013 and 2012 were as follows:
|  | (in thousands) |
|  | For the three months ended September 30, |  |  | For the nine months ended September 30, |
|  | 2013 |  |  | 2012 |  |  | 2013 |  |  | 2012 |
Service cost |  | $ | 118 |  |  | $ | 107 |  |  | $ | 352 |  |  | $ | 320 |
Interest cost |  |  | 70 |  |  |  | 67 |  |  |  | 210 |  |  |  | 202 |
Expected return on plan assets |  |  | (76 | ) |  |  | (69 | ) |  |  | (227 | ) |  |  | (206 | )
Amortization of prior service cost |  |  | — |  |  |  | 1 |  |  |  | — |  |  |  | 2 |
Amortization of net loss |  |  | 27 |  |  |  | 21 |  |  |  | 82 |  |  |  | 64 |
Net periodic benefit cost |  | $ | 139 |  |  | $ | 127 |  |  | $ | 417 |  |  | $ | 382 |

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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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