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Benefit Plans and Other Postretirement Benefits | 3 Months Ended
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Mar. 31, 2014
Benefit Plans and Other Postretirement Benefits |
Benefit Plans and Other Postretirement Benefits | Note 10—Benefit Plans and Other Postretirement Benefits The Company and certain of its domestic subsidiaries have defined benefit pension plans (the “U.S. Plans”), which cover certain U.S. employees and which represent the majority of the assets and benefit obligations of the aggregate defined benefit plans of the Company. The U.S. Plans’ benefits are generally based on years of service and compensation and are generally noncontributory. Certain U.S. employees not covered by the U.S. Plans are covered by defined contribution plans. Certain foreign subsidiaries have defined benefit plans covering their employees (the “International Plans” and, together with the U.S. Plans, the “Plans”). The following is a summary, based on the most recent actuarial valuations of the Company’s net cost for pension benefits, of the Plans and other postretirement benefits for the three months ended March 31, 2014 and 2013.
|  | Pension Benefits |  | Other Postretirement Benefits |
|  | Three months ended March 31, |
|  | 2014 |  | 2013 |  | 2014 |  | 2013 |
Service cost |  | $ | 2,046 |  | $ | 2,112 |  | $ | 28 |  | $ | 40 |
Interest cost |  | 6,017 |  | 5,207 |  | 123 |  | 127 |
Expected return on plan assets |  | (7,133 | ) | (6,203 | ) | — |  | — |
Amortization of transition obligation |  | (24 | ) | (27 | ) | — |  | — |
Amortization of prior service cost |  | 673 |  | 495 |  | — |  | — |
Amortization of net actuarial losses |  | 4,013 |  | 5,905 |  | 105 |  | 193 |
Net pension expense |  | $ | 5,592 |  | $ | 7,489 |  | $ | 256 |  | $ | 360 |
For the three months ended March 31, 2014, the Company did not make a cash contribution to the U.S. Plans and estimates that, based on current actuarial calculations, it will make aggregate cash contributions to the Plans in 2014 of approximately $20,000, the majority of which will be to the U.S. Plans. The timing and amount of cash contributions in subsequent years will depend on a number of factors, including the investment performance of the Plan assets. The Company offers various defined contribution plans for certain U.S. and foreign employees. Participation in these plans is based on certain eligibility requirements. The Company matches the majority of employee contributions to U.S. defined contribution plans with cash contributions up to a maximum of 5% of eligible compensation. During the three months ended March 31, 2014 and 2013, the total matching contributions to these U.S. defined contribution plans were approximately $941 and $830, respectively.

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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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