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Pension Plan | 6 Months Ended
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Jun. 30, 2013
Pension Plan | (10) Pension Plan The following table shows the components of net periodic pension cost for our defined benefit pension plan as of June 30, 2013 and 2012 (amounts in thousands):
|  | Three months ended June 30, |  |  | Six months ended June 30, |
|  | 2013 |  |  | 2012 |  |  | 2013 |  |  | 2012 |
Service cost |  | $ | 277 |  |  | $ | 286 |  |  | $ | 530 |  |  | $ | 572 |
Interest cost |  |  | 1,230 |  |  |  | 1,165 |  |  |  | 2,264 |  |  |  | 2,330 |
Expected return on assets |  |  | (2,435 | ) |  |  | (2,111 | ) |  |  | (3,801 | ) |  |  | (3,651 | )
Recognized actuarial loss |  |  | 717 |  |  |  | 1,055 |  |  |  | 1,653 |  |  |  | 2,110 |
Net periodic pension cost |  | $ | (211 | ) |  | $ | 395 |  |  | $ | 646 |  |  | $ | 1,361 |
During the six months ended June 30, 2013, there were no contributions made to our pension plan.

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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 + Details
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