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Pension Plan (Tables) | 6 Months Ended
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Jun. 30, 2013
Components of Net Periodic Pension Cost | 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 |

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- Definition Tabular disclosure of one or more of the entity's defined benefit pension plans or one or more other defined benefit postretirement plans, separately for pension plans and other postretirement benefit plans including the entity's schedule of fair value of plan assets for defined benefit or other postretirement plans. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=28361610&loc=d3e1928-114920 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=28361610&loc=d3e2417-114920 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 55 -Paragraph 17 -URI http://asc.fasb.org/extlink&oid=32704760&loc=d3e4179-114921 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=28361610&loc=d3e2439-114920 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=28361610&loc=d3e2410-114920 + Details
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