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Retirement Plans (Tables) | 3 Months Ended
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Mar. 31, 2017
Compensation and Retirement Disclosure [Abstract] |
Components Of Net Periodic Pension Cost | The components of net periodic pension cost of the UK Plan for the three months ended March 31, 2017 and 2016 were as follows (in thousands):
| For the three months ended March 31, |
| 2017 |  | 2016 |
Interest cost | $ | 2,045 |  |  | $ | 2,685 |  |
Expected return on plan assets | (3,204 | ) |  | (3,701 | ) |
Amortization of unrecognized loss | 698 |  |  | 532 |  |
Net periodic pension cost (income) | $ | (461 | ) |  | $ | (484 | ) |

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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=65897934&loc=d3e1928-114920 + Details
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