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Accumulated Other Comprehensive Income (Loss) (Tables) | 3 Months Ended
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Mar. 31, 2015
Equity [Abstract] |
Schedule of Accumulated Other Comprehensive Income (Loss) | Information regarding accumulated other comprehensive income (loss) for the three months ended March 31, 2015 and 2014 is as follows:
| Accumulated Other Comprehensive Income (Loss)
| PNM |  | TNMP |  | PNMR
| Unrealized |  |  |  |  |  | Fair Value |  |
| Gain on |  | Pension |  |  |  | Adjustment |  |
| Available-for- |  | Liability |  |  |  | for Cash Flow |  |
| Sale Securities |  | Adjustment |  | Total |  | Hedges |  | Total
| (In thousands)
Balance at December 31, 2014 | $ | 28,008 |  |  | $ | (89,763 | ) |  | $ | (61,755 | ) |  | $ | — |  |  | $ | (61,755 | )
Amounts reclassified from AOCI (pre-tax) | (4,172 | ) |  | 1,488 |  |  | (2,684 | ) |  | — |  |  | (2,684 | )
Income tax impact of amounts reclassified | 1,635 |  |  | (583 | ) |  | 1,052 |  |  | — |  |  | 1,052 |
Other OCI changes (pre-tax) | 6,836 |  |  | — |  |  | 6,836 |  |  | — |  |  | 6,836 |
Income tax impact of other OCI changes | (2,679 | ) |  | — |  |  | (2,679 | ) |  | — |  |  | (2,679 | )
Net change after income taxes | 1,620 |  |  | 905 |  |  | 2,525 |  |  | — |  |  | 2,525 |
Balance at March 31, 2015 | $ | 29,628 |  |  | $ | (88,858 | ) |  | $ | (59,230 | ) |  | $ | — |  |  | $ | (59,230 | )
| Accumulated Other Comprehensive Income (Loss)
| PNM |  | TNMP |  | PNMR
| Unrealized |  |  |  |  |  | Fair Value |  |
| Gain on |  | Pension |  |  |  | Adjustment |  |
| Available-for- |  | Liability |  |  |  | for Cash Flow |  |
| Sale Securities |  | Adjustment |  | Total |  | Hedges |  | Total
| (In thousands)
Balance at December 31, 2013 | $ | 25,748 |  |  | $ | (83,625 | ) |  | $ | (57,877 | ) |  | $ | (263 | ) |  | $ | (58,140 | )
Amounts reclassified from AOCI (pre-tax) | (3,255 | ) |  | 1,288 |  |  | (1,967 | ) |  | 55 |  |  | (1,912 | )
Income tax impact of amounts reclassified | 1,283 |  |  | (508 | ) |  | 775 |  |  | (19 | ) |  | 756 |
Other OCI changes (pre-tax) | 3,379 |  |  | — |  |  | 3,379 |  |  | (153 | ) |  | 3,226 |
Income tax impact of other OCI changes | (1,332 | ) |  | — |  |  | (1,332 | ) |  | 53 |  |  | (1,279 | )
Net change after income taxes | 75 |  |  | 780 |  |  | 855 |  |  | (64 | ) |  | 791 |
Balance at March 31, 2014 | $ | 25,823 |  |  | $ | (82,845 | ) |  | $ | (57,022 | ) |  | $ | (327 | ) |  | $ | (57,349 | )

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- Definition Tabular disclosure of the components of accumulated other comprehensive income (loss). + References Reference 1: 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 + Details
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