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CONSOLIDATED STATEMENT OF COMPREHENSIVE INCOME (USD $) In Thousands, unless otherwise specified | 12 Months Ended
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Dec. 31, 2012 | Dec. 31, 2011 | Dec. 31, 2010
CONSOLIDATED STATEMENT OF COMPREHENSIVE INCOME |  |  |  |  |  |
Net income | $ 131,730 |  | $ 122,408 |  | $ 103,386 |
Other comprehensive income / (loss), net of taxes: |  |  |  |  |  |
Reclassification adjustment for settled hedge contracts | (144,456) | [1] | (52,840) | [1] | (107,256) | [1]
Changes in fair value of hedge contracts | 53,815 | [2] | 163,704 | [2] | 45,878 | [2]
Defined benefit pension and postretirement plans: |  |  |  |  |  |
Net gain / (loss) | 1,258 | [3] | (13,814) | [3] | 5,693 | [3]
Plan termination and amendment |  |  |  |  | 506 | [4]
Settlement |  |  | 3,380 | [5] | 2,493 | [5]
Amortization of net obligation at transition |  |  | 387 | [6] | 392 | [6]
Amortization of prior service cost | 134 | [7] | 640 | [7] | 355 | [7]
Amortization of net loss | 8,582 | [8] | 6,718 | [8] | 5,788 | [8]
Foreign currency translation adjustment |  |  | 55 | [9] | 32 | [9]
Total other comprehensive income / (loss) | (80,667) |  | 108,230 |  | (46,119) |
Comprehensive income / (loss) | $ 51,063 |  | $ 230,638 |  | $ 57,267 |
[1] | Net of income taxes of $91,870, $33,500 and $65,734 for the year ended December 31, 2012, 2011 and 2010, respectively.
[2] | Net of income taxes of $(34,890), $(103,963) and $(29,777) for the year ended December 31, 2012, 2011 and 2010, respectively.
[3] | Net of income taxes of $(815), $9,085 and $(3,245) for the year ended December 31, 2012, 2011 and 2010, respectively.
[4] | Net of income taxes of $0, $0 and $(310) for the year ended December 31, 2012, 2011 and 2010, respectively.
[5] | Net of income taxes of $0, $(2,143) and $(1,528) for the year ended December 31, 2012, 2011 and 2010, respectively.
[6] | Net of income taxes of $0, $(245) and $(240) for the year ended December 31, 2012, 2011 and 2010, respectively.
[7] | Net of income taxes of $(87), $(406) and $(217) for the year ended December 31, 2012, 2011 and 2010, respectively.
[8] | Net of income taxes of $(5,324), $(4,257) and $(3,548) for the year ended December 31, 2012, 2011 and 2010, respectively.
[9] | Net of income taxes of $0, $(34) and $(20) for the year ended December 31, 2012, 2011 and 2010, respectively.

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- Definition After tax gain (loss) adjustment to other comprehensive income resulting from curtailment and plan amendment of the entity's defined benefit pension and other postretirement plans. A curtailment is an event that significantly reduces the expected years of future service of present employees or eliminates for a significant number of employees the accrual of defined benefits for some or all of their future services. + References No definition available. + Details
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- Definition The change in equity [net assets] of a business enterprise during a period from transactions and other events and circumstances from non-owner sources which are attributable to the reporting entity. It includes all changes in equity during a period except those resulting from investments by owners and distributions to owners, but excludes any and all transactions which are directly or indirectly attributable to that ownership interest in subsidiary equity which is not attributable to the parent. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Net Income -URI http://asc.fasb.org/extlink&oid=6518256 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 38 -Subparagraph c(3) -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 Accounting Standards Codification -Glossary Other Comprehensive Income -URI http://asc.fasb.org/extlink&oid=6519514 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 30 -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 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Comprehensive Income -URI http://asc.fasb.org/extlink&oid=16317811 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=20435746&loc=d3e557-108580 Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph A5 -Appendix A + Details
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