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Retirement Benefit Plans | 3 Months Ended
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Mar. 31, 2014
Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures [Abstract] |
Retirement Benefit Plans |
10. | Retirement Benefit Plans
Our defined benefit pension plans and postretirement medical plan are described in Note 11 of the 2013 annual report on Form 10-K. We have contributed $179 and $264 during the first quarter of 2014 to our pension plans and to our postretirement medical plan, respectively. The components of the net periodic benefit cost for the three months ended March 31, 2014 and 2013 were as follows:
|  | Three Months Ended
|  | March 31
|  | Pension Benefits |  | Postretirement
|  | U.S. Plans |  | Non-U.S. Plans |  | Medical Benefits
|  | 2014 |  | 2013 |  | 2014 |  | 2013 |  | 2014 |  | 2013
Service cost |  | $ | 124 |  |  | $ | 216 |  |  | $ | 38 |  |  | $ | 33 |  |  | $ | 32 |  |  | $ | 38 |
Interest cost |  | 494 |  |  | 568 |  |  | 132 |  |  | 122 |  |  | 131 |  |  | 112 |
Expected return on plan assets |  | (670 | ) |  | (910 | ) |  | (129 | ) |  | (116 | ) |  | — |  |  | — |
Amortization of net actuarial loss (gain) |  | 44 |  |  | 23 |  |  | — |  |  | — |  |  | 11 |  |  | (26 | )
Amortization of prior service cost (benefit) |  | 11 |  |  | 549 |  |  | 46 |  |  | 81 |  |  | (2 | ) |  | 50 |
Foreign currency |  | — |  |  | — |  |  | 18 |  |  | 42 |  |  | — |  |  | — |
Net periodic cost |  | $ | 3 |  |  | $ | 446 |  |  | $ | 105 |  |  | $ | 162 |  |  | $ | 172 |  |  | $ | 174 |

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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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