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Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2013
Accumulated Other Comprehensive Income (Loss) [Roll Forward] |  |  |
Beginning Balance | $ (61,755) | $ (58,140) | $ (81,630)
Amounts reclassified from AOCI (pre-tax) | (22,579) | (8,152) | (5,385)
Income tax impact of amounts reclassified | 8,849 | 3,234 | 2,137
Other OCI changes (pre-tax) | 6,665 | 2,038 | 44,276
Income tax impact of other OCI changes | (2,612) | (735) | (17,538)
Total Other Comprehensive Income (Loss) | (9,677) | (3,615) | 23,490
Ending Balance | $ (71,432) | $ (61,755) | (58,140)
Percentage of pension liability adjustment capitalized into construction work in process | 22.20% | 24.40% |
Percentage of pension liability adjustment capitalized into other accounts | 2.40% | 2.00% |
Public Service Company of New Mexico [Member] |  |  |
Accumulated Other Comprehensive Income (Loss) [Roll Forward] |  |  |
Beginning Balance | $ (61,755) | $ (57,877) | (81,414)
Amounts reclassified from AOCI (pre-tax) | (22,579) | (8,710) | (5,592)
Income tax impact of amounts reclassified | 8,849 | 3,429 | 2,210
Other OCI changes (pre-tax) | 6,593 | 2,191 | 44,555
Income tax impact of other OCI changes | (2,584) | (788) | (17,636)
Total Other Comprehensive Income (Loss) | (9,721) | (3,878) | 23,537
Ending Balance | (71,476) | (61,755) | (57,877)
Texas-New Mexico Power Company [Member] |  |  |
Accumulated Other Comprehensive Income (Loss) [Roll Forward] |  |  |
Total Other Comprehensive Income (Loss) | 0 | 263 | (47)
Unrealized Gain on Available-for-Sale Securities [Member] | Public Service Company of New Mexico [Member] |  |  |
Accumulated Other Comprehensive Income (Loss) [Roll Forward] |  |  |
Beginning Balance | 28,008 | 25,748 | 16,406
Amounts reclassified from AOCI (pre-tax) | (28,531) | (13,862) | (11,956)
Income tax impact of amounts reclassified | 11,181 | 5,461 | 4,734
Other OCI changes (pre-tax) | 10,998 | 17,473 | 27,419
Income tax impact of other OCI changes | (4,310) | (6,812) | (10,855)
Total Other Comprehensive Income (Loss) | (10,662) | 2,260 | 9,342
Ending Balance | 17,346 | 28,008 | 25,748
Pension Liability Adjustment [Member] | Public Service Company of New Mexico [Member] |  |  |
Accumulated Other Comprehensive Income (Loss) [Roll Forward] |  |  |
Beginning Balance | (89,763) | (83,625) | (97,820)
Amounts reclassified from AOCI (pre-tax) | 5,952 | 5,152 | 6,364
Income tax impact of amounts reclassified | (2,332) | (2,032) | (2,524)
Other OCI changes (pre-tax) | (4,405) | (15,282) | 17,136
Income tax impact of other OCI changes | 1,726 | 6,024 | (6,781)
Total Other Comprehensive Income (Loss) | 941 | (6,138) | 14,195
Ending Balance | (88,822) | (89,763) | (83,625)
Fair Value Adjustment for Cash Flow Hedges [Member] |  |  |
Accumulated Other Comprehensive Income (Loss) [Roll Forward] |  |  |
Beginning Balance | 0 | 0 | 0
Amounts reclassified from AOCI (pre-tax) | 0 | 0 | 0
Income tax impact of amounts reclassified | 0 | 0 | 0
Other OCI changes (pre-tax) | 72 | 0 | 0
Income tax impact of other OCI changes | (28) | 0 | 0
Total Other Comprehensive Income (Loss) | 44 | 0 | 0
Ending Balance | 44 | 0 | 0
Fair Value Adjustment for Cash Flow Hedges [Member] | Texas-New Mexico Power Company [Member] |  |  |
Accumulated Other Comprehensive Income (Loss) [Roll Forward] |  |  |
Beginning Balance | 0 | (263) | (216)
Amounts reclassified from AOCI (pre-tax) | 0 | 558 | 207
Income tax impact of amounts reclassified | 0 | (195) | (73)
Other OCI changes (pre-tax) | 0 | (153) | (279)
Income tax impact of other OCI changes | 0 | 53 | 98
Total Other Comprehensive Income (Loss) | 0 | 263 | (47)
Ending Balance | $ 0 | $ 0 | $ (263)

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- Definition Accumulated change in equity from transactions and other events and circumstances from non-owner sources, net of tax effect, at period end. Excludes Net Income (Loss), and accumulated changes in equity from transactions resulting from investments by owners and distributions to owners. Includes foreign currency translation items, certain pension adjustments, unrealized gains and losses on certain investments in debt and equity securities, other than temporary impairment (OTTI) losses related to factors other than credit losses on available-for-sale and held-to-maturity debt securities that an entity does not intend to sell and it is not more likely than not that the entity will be required to sell before recovery of the amortized cost basis, as well as changes in the fair value of derivatives related to the effective portion of a designated cash flow hedge. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=36458714&loc=d3e637-108580 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14 -URI http://asc.fasb.org/extlink&oid=36458714&loc=d3e681-108580 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14A -URI http://asc.fasb.org/extlink&oid=36458714&loc=SL7669686-108580 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 31 -Article 5 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Article 3 + Details
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