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Pension and Other Postretirement Benefit Plans Pension Benefit Payments are Expected to be Paid (Details) (USD $) In Thousands, unless otherwise specified | Dec. 31, 2011
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Public Service Company of New Mexico [Member] | Executive Retirement Program [Member] |
Defined Benefit Plan, Estimated Future Benefit Payments [Abstract] |
2012 | $ 1,477
2013 | 1,460
2014 | 1,441
2015 | 1,418
2016 | 1,393
Years 2017 - 2021 | 6,462
Public Service Company of New Mexico [Member] | Other Postretirement Benefits [Member] |
Defined Benefit Plan, Estimated Future Benefit Payments [Abstract] |
2012 | 6,708
2013 | 6,874
2014 | 7,138
2015 | 7,270
2016 | 7,520
Years 2017 - 2021 | 38,933
Public Service Company of New Mexico [Member] | Pension Plan [Member] |
Defined Benefit Plan, Estimated Future Benefit Payments [Abstract] |
2012 | 40,809
2013 | 41,759
2014 | 42,536
2015 | 43,183
2016 | 43,715
Years 2017 - 2021 | 222,072
Texas-New Mexico Power Company [Member] | Executive Retirement Program [Member] |
Defined Benefit Plan, Estimated Future Benefit Payments [Abstract] |
2012 | 91
2013 | 90
2014 | 89
2015 | 87
2016 | 85
Years 2017 - 2021 | 375
Texas-New Mexico Power Company [Member] | Other Postretirement Benefits [Member] |
Defined Benefit Plan, Estimated Future Benefit Payments [Abstract] |
2012 | 777
2013 | 780
2014 | 797
2015 | 799
2016 | 816
Years 2017 - 2021 | 4,157
Texas-New Mexico Power Company [Member] | Pension Plan [Member] |
Defined Benefit Plan, Estimated Future Benefit Payments [Abstract] |
2012 | 6,690
2013 | 5,806
2014 | 6,236
2015 | 6,046
2016 | 5,690
Years 2017 - 2021 | $ 25,715

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- Definition The amount of the aggregate benefits expected to be paid in the five fiscal years thereafter (the aggregate amount of benefits expected to be paid in years 6 through 10 after the date of the latest statement of financial position). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 132R -Paragraph 5 -Subparagraph f -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (f) -URI http://asc.fasb.org/extlink&oid=6962843&loc=d3e1928-114920 + Details
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- Definition The amount of the benefits expected to be paid in Year 5. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 132R -Paragraph 5 -Subparagraph f -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 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (f) -URI http://asc.fasb.org/extlink&oid=6962843&loc=d3e1928-114920 + Details
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- Definition The amount of the benefits expected to be paid in Year 4. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 132R -Paragraph 5 -Subparagraph f -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 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (f) -URI http://asc.fasb.org/extlink&oid=6962843&loc=d3e1928-114920 + Details
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- Definition The amount of the benefits expected to be paid in Year 1. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 132R -Paragraph 5 -Subparagraph f -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 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (f) -URI http://asc.fasb.org/extlink&oid=6962843&loc=d3e1928-114920 + Details
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- Definition The amount of the benefits expected to be paid in Year 3. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 132R -Paragraph 5 -Subparagraph f -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 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (f) -URI http://asc.fasb.org/extlink&oid=6962843&loc=d3e1928-114920 + Details
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- Definition The amount of the benefits expected to be paid in Year 2. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 132R -Paragraph 5 -Subparagraph f -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 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (f) -URI http://asc.fasb.org/extlink&oid=6962843&loc=d3e1928-114920 + Details
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