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Accumulated Other Comprehensive Income (Loss) | 12 Months Ended
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Dec. 31, 2017
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract] |
Accumulated Other Comprehensive Income (Loss) | Accumulated Other Comprehensive Income (Loss) AOCI reports a measure for accumulated changes in equity that result from transactions and other economic events other than transactions with shareholders. Information regarding AOCI is as follows:
| Accumulated Other Comprehensive Income (Loss)
| PNM |  | PNMR
| Unrealized Gains on Available-for-Sale Securities |  | Pension Liability Adjustment |  | Total |  | Fair Value Adjustment for Cash Flow Hedges |  | Total
| (In thousands)
Balance at December 31, 2014 | $ | 28,008 |  |  | $ | (89,763 | ) |  | $ | (61,755 | ) |  | $ | — |  |  | $ | (61,755 | )
Amounts reclassified from AOCI (pre-tax) | (28,531 | ) |  | 5,952 |  |  | (22,579 | ) |  | — |  |  | (22,579 | )
Income tax impact of amounts reclassified | 11,181 |  |  | (2,332 | ) |  | 8,849 |  |  | — |  |  | 8,849 |
Other OCI changes (pre-tax) | 10,998 |  |  | (4,405 | ) |  | 6,593 |  |  | 72 |  |  | 6,665 |
Income tax impact of other OCI changes | (4,310 | ) |  | 1,726 |  |  | (2,584 | ) |  | (28 | ) |  | (2,612 | )
Net after-tax change | (10,662 | ) |  | 941 |  |  | (9,721 | ) |  | 44 |  |  | (9,677 | )
Balance at December 31, 2015 | 17,346 |  |  | (88,822 | ) |  | (71,476 | ) |  | 44 |  |  | (71,432 | )
Amounts reclassified from AOCI (pre-tax) | (22,139 | ) |  | 5,504 |  |  | (16,635 | ) |  | 764 |  |  | (15,871 | )
Income tax impact of amounts reclassified | 8,639 |  |  | (2,148 | ) |  | 6,491 |  |  | (298 | ) |  | 6,193 |
Other OCI changes (pre-tax) | 778 |  |  | (18,501 | ) |  | (17,723 | ) |  | (874 | ) |  | (18,597 | )
Income tax impact of other OCI changes | (304 | ) |  | 7,219 |  |  | 6,915 |  |  | 341 |  |  | 7,256 |
Net after-tax change | (13,026 | ) |  | (7,926 | ) |  | (20,952 | ) |  | (67 | ) |  | (21,019 | )
Balance at December 31, 2016 | 4,320 |  |  | (96,748 | ) |  | (92,428 | ) |  | (23 | ) |  | (92,451 | )
Amounts reclassified from AOCI (pre-tax) | (17,567 | ) |  | 6,452 |  |  | (11,115 | ) |  | 581 |  |  | (10,534 | )
Income tax impact of amounts reclassified | 6,816 |  |  | (2,504 | ) |  | 4,312 |  |  | (225 | ) |  | 4,087 |
Other OCI changes (pre-tax) | 28,160 |  |  | 3,618 |  |  | 31,778 |  |  | 1,000 |  |  | 32,778 |
Income tax impact of other OCI changes | (10,927 | ) |  | (919 | ) |  | (11,846 | ) |  | (388 | ) |  | (12,234 | )
Net after-tax change | 6,482 |  |  | 6,647 |  |  | 13,129 |  |  | 968 |  |  | 14,097 |
Reclassification of stranded income taxes to retained earnings Note 11 | 2,367 |  |  | (20,161 | ) |  | (17,794 | ) |  | 208 |  |  | (17,586 | )
Balance at December 31, 2017 | $ | 13,169 |  |  | $ | (110,262 | ) |  | $ | (97,093 | ) |  | $ | 1,153 |  |  | $ | (95,940 | )
Pre-tax amounts reclassified from AOCI related to “Unrealized Gains on Available-for-Sale Securities” are included in “Gains on available-for-sale securities” in the Consolidated Statements of Earnings. Pre-tax amounts reclassified from AOCI related to “Pension Liability Adjustment” are reclassified to “Operating Expenses – Administrative and general” in the Consolidated Statements of Earnings. Pre-tax amounts reclassified from AOCI related to “Fair Value Adjustment for Cash Flow Hedges” are reclassified to “Interest Charges” in the Consolidated Statements of Earnings. An insignificant amount is included in capitalized interest. The income tax impacts of all amounts reclassified from AOCI are included in “Income Taxes” in the Consolidated Statements of Earnings.

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- References No definition available. + Details
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- Definition The entire disclosure for comprehensive income, which includes, but is not limited to, 1) the amount of income tax expense or benefit allocated to each component of other comprehensive income, including reclassification adjustments, 2) the reclassification adjustments for each classification of other comprehensive income and 3) the ending accumulated balances for each component of comprehensive income. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -URI http://asc.fasb.org/topic&trid=2134417 + Details
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