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Accumulated Other Comprehensive Income (Loss) (Tables) | 3 Months Ended
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Mar. 31, 2016
Equity [Abstract] |
Schedule of Accumulated Other Comprehensive Income (Loss) | Information regarding accumulated other comprehensive income (loss) for the three months ended March 31, 2016 and 2015 is as follows:
| Accumulated Other Comprehensive Income (Loss)
| PNM |  | PNMR
| Unrealized |  |  |  |  |  | Fair Value |  |
| Gains on |  |  |  |  |  | Adjustment |  |
| Available-for- |  | Pension |  |  |  | for Cash |  |
| Sale |  | Liability |  |  |  | Flow |  |
| Securities |  | Adjustment |  | Total |  | Hedges |  | Total
| (In thousands)
Balance at December 31, 2015 | $ | 17,346 |  |  | $ | (88,822 | ) |  | $ | (71,476 | ) |  | $ | 44 |  |  | $ | (71,432 | )
Amounts reclassified from AOCI (pre-tax) | (11,210 | ) |  | 1,376 |  |  | (9,834 | ) |  | 146 |  |  | (9,688 | )
Income tax impact of amounts reclassified | 4,374 |  |  | (537 | ) |  | 3,837 |  |  | (57 | ) |  | 3,780 |
Other OCI changes (pre-tax) | 5,458 |  |  | — |  |  | 5,458 |  |  | (1,289 | ) |  | 4,169 |
Income tax impact of other OCI changes | (2,130 | ) |  | — |  |  | (2,130 | ) |  | 503 |  |  | (1,627 | )
Net change after income taxes | (3,508 | ) |  | 839 |  |  | (2,669 | ) |  | (697 | ) |  | (3,366 | )
Balance at March 31, 2016 | $ | 13,838 |  |  | $ | (87,983 | ) |  | $ | (74,145 | ) |  | $ | (653 | ) |  | $ | (74,798 | )
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 | )

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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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