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Pension Plans and Other Postretirement Benefits | 6 Months Ended
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Jun. 30, 2013
Pension Plans and Other Postretirement Benefits | NOTE 10—Pension Plans and Other Postretirement Benefits: The following information is provided for domestic and foreign pension and postretirement defined benefit plans:
|  | Three Months Ended |  |  | Six Months Ended |
|  | June 30, |  |  | June 30, |
|  | 2013 |  |  | 2012 |  |  | 2013 |  |  | 2012 |
|  | (In thousands) |
Net Periodic Pension Benefit Cost (Credit): |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Service cost |  | $ | 3,332 |  |  | $ | 3,044 |  |  | $ | 6,974 |  |  | $ | 6,217 |
Interest cost |  |  | 7,715 |  |  |  | 7,982 |  |  |  | 14,933 |  |  |  | 16,193 |
Expected return on assets |  |  | (9,821 | ) |  |  | (11,649 | ) |  |  | (19,693 | ) |  |  | (23,279 | )
Actuarial gain(a) |  |  | — |  |  |  | (5,840 | ) |  |  | — |  |  |  | (5,840 | )
Amortization of prior service benefit |  |  | (295 | ) |  |  | (225 | ) |  |  | (344 | ) |  |  | (486 | )
Total net periodic pension benefit cost (credit) |  | $ | 931 |  |  | $ | (6,688 | ) |  | $ | 1,870 |  |  | $ | (7,195 | )
Net Periodic Postretirement Benefit Cost (Credit): |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Service cost |  | $ | 71 |  |  | $ | 87 |  |  | $ | 154 |  |  | $ | 137 |
Interest cost |  |  | 694 |  |  |  | 736 |  |  |  | 1,382 |  |  |  | 1,586 |
Expected return on assets |  |  | (103 | ) |  |  | (119 | ) |  |  | (206 | ) |  |  | (244 | )
Actuarial gain(a) |  |  | — |  |  |  | (4,439 | ) |  |  | — |  |  |  | (4,439 | )
Amortization of prior service benefit |  |  | (23 | ) |  |  | (23 | ) |  |  | (48 | ) |  |  | (48 | )
Total net periodic postretirement benefit cost (credit) |  | $ | 639 |  |  | $ | (3,758 | ) |  | $ | 1,282 |  |  | $ | (3,008 | )
Total net periodic pension and postretirement benefit cost (credit) |  | $ | 1,570 |  |  | $ | (10,446 | ) |  | $ | 3,152 |  |  | $ | (10,203 | )
(a) | In the second quarter of 2013, we identified that our consolidated statements of income for the three-month and six-month periods ended June 30, 2012 included a correction of $10.3 million for pension and OPEB plan actuarial gains that related to 2011. This amount was deemed to be not material with respect to our financial statements for the year ended December 31, 2012 and any prior period financial statements.
During the three-month and six-month periods ended June 30, 2013, we made contributions of $1.4 million and $2.0 million, respectively, to our qualified and nonqualified pension plans. During the three-month and six-month periods ended June 30, 2012, we made contributions of $1.3 million and $2.7 million, respectively, to our qualified and nonqualified pension plans. We paid $1.1 million and $2.2 million in premiums to the U.S. postretirement benefit plan during the three-month and six-month periods ended June 30, 2013, respectively. Also, we paid $0.8 million and $1.9 million in premiums to the U.S. postretirement benefit plan during the three-month and six-month periods ended June 30, 2012, 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 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Implementation Guide (Q and A) -Number FAS88 -Paragraph 63 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 132R -Paragraph 5, 6, 7, 8 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Emerging Issues Task Force (EITF) -Number 03-2 -Paragraph 8 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. 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Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 106 -Paragraph 518 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 8: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 132R -Paragraph 5 -Subparagraph b -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 9: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 132R -Paragraph 5 -Subparagraph a -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 10: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 132R -Paragraph 5 -Subparagraph h -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. 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Reference 13: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Principles Board Opinion (APB) -Number 30 -Paragraph 26 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 14: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 132R -Paragraph 8 -Subparagraph m -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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