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Benefit Plans and Other Postretirement Benefits | 6 Months Ended
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Jun. 30, 2013
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 two defined benefit pension plans (the “U.S. Plans”), which cover its 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 and six months ended June 30, 2013 and 2012.
|  | Pension Benefits |  | Other Postretirement Benefits |
|  | Three months ended June 30, |
|  | 2013 |  | 2012 |  | 2013 |  | 2012 |
Service cost |  | $ | 2,103 |  | $ | 1,939 |  | $ | 40 |  | $ | 45 |
Interest cost |  | 5,107 |  | 5,426 |  | 127 |  | 169 |
Expected return on plan assets |  | (6,071 | ) | (6,083 | ) | — |  | — |
Amortization of transition obligation |  | (27 | ) | (27 | ) | — |  | 16 |
Amortization of prior service cost |  | 485 |  | 534 |  | — |  | — |
Amortization of net actuarial losses |  | 5,897 |  | 4,555 |  | 193 |  | 242 |
Net pension expense |  | $ | 7,494 |  | $ | 6,344 |  | $ | 360 |  | $ | 472 |
|  | Pension Benefits |  | Other Postretirement Benefits |
|  | Six months ended June 30, |
|  | 2013 |  | 2012 |  | 2013 |  | 2012 |
Service cost |  | $ | 4,215 |  | $ | 3,884 |  | $ | 80 |  | $ | 90 |
Interest cost |  | 10,314 |  | 10,953 |  | 255 |  | 339 |
Expected return on plan assets |  | (12,274 | ) | (12,319 | ) | — |  | — |
Amortization of transition obligation |  | (54 | ) | (54 | ) | — |  | 31 |
Amortization of prior service cost |  | 980 |  | 1,075 |  | — |  | — |
Amortization of net actuarial losses |  | 11,802 |  | 9,108 |  | 385 |  | 483 |
Net pension expense |  | $ | 14,983 |  | $ | 12,647 |  | $ | 720 |  | $ | 943 |
For the three and six months ended June 30, 2013, the Company made a cash contribution to the U.S. Plans of approximately $4,000 and estimates that, based on current actuarial calculations, it will make aggregate cash contributions to the Plans in 2013 of approximately $21,000, 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 six months ended June 30, 2013 and 2012, the total matching contributions to these U.S. defined contribution plans were approximately $1,600 and $1,400, respectively.

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