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Accumulated Other Comprehensive Income (Loss) (Tables) | 12 Months Ended
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Dec. 31, 2021
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract] |
Reclassification out of Accumulated Other Comprehensive Income | 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, 2018 | $ | 1,939 |  |  | $ | (112,361) |  |  | $ | (110,422) |  |  |  |  | $ | 1,738 |  |  | $ | (108,684) |
Amounts reclassified from AOCI (pre-tax) | (14,063) |  |  | 7,404 |  |  | (6,659) |  |  |  |  | 733 |  |  | (5,926) |
Income tax impact of amounts reclassified | 3,572 |  |  | (1,880) |  |  | 1,692 |  |  |  |  | (186) |  |  | 1,506 |
Other OCI changes (pre-tax) | 25,724 |  |  | (3,829) |  |  | 21,895 |  |  |  |  | (3,495) |  |  | 18,400 |
Income tax impact of other OCI changes | (6,534) |  |  | 973 |  |  | (5,561) |  |  |  |  | 888 |  |  | (4,673) |
Net after-tax change | 8,699 |  |  | 2,668 |  |  | 11,367 |  |  |  |  | (2,060) |  |  | 9,307 |
Balance at December 31, 2019 | 10,638 |  |  | (109,693) |  |  | (99,055) |  |  |  |  | (322) |  |  | (99,377) |
Amounts reclassified from AOCI (pre-tax) | (9,497) |  |  | 8,300 |  |  | (1,197) |  |  |  |  | (1,740) |  |  | (2,937) |
Income tax impact of amounts reclassified | 2,412 |  |  | (2,108) |  |  | 304 |  |  |  |  | 442 |  |  | 746 |
Other OCI changes (pre-tax) | 22,586 |  |  | 6,149 |  |  | 28,735 |  |  |  |  | 1,271 |  |  | 30,006 |
Income tax impact of other OCI changes | (5,736) |  |  | (1,562) |  |  | (7,298) |  |  |  |  | (323) |  |  | (7,621) |
Net after-tax change | 9,765 |  |  | 10,779 |  |  | 20,544 |  |  |  |  | (350) |  |  | 20,194 |
Balance at December 31, 2020 | 20,403 |  |  | (98,914) |  |  | (78,511) |  |  |  |  | (672) |  |  | (79,183) |
Amounts reclassified from AOCI (pre-tax) | (9,765) |  |  | 8,348 |  |  | (1,417) |  |  |  |  | (903) |  |  | (2,320) |
Income tax impact of amounts reclassified | 2,480 |  |  | (2,120) |  |  | 360 |  |  |  |  | 229 |  |  | 589 |
Other OCI changes (pre-tax) | (1,881) |  |  | 12,111 |  |  | 10,230 |  |  |  |  | 1,804 |  |  | 12,034 |
Income tax impact of other OCI changes | 478 |  |  | (3,076) |  |  | (2,598) |  |  |  |  | (458) |  |  | (3,056) |
Net after-tax change | (8,688) |  |  | 15,263 |  |  | 6,575 |  |  |  |  | 672 |  |  | 7,247 |
Balance at December 31, 2021 | $ | 11,715 |  |  | $ | (83,651) |  |  | $ | (71,936) |  |  |  |  | $ | — |  |  | $ | (71,936) |
The following table presents pre-tax information about net actuarial (gain) loss in AOCI as of December 31, 2021.
|  |  | PNM |  | TNMP
|  |  | (In thousands)
Amounts in AOCI not yet recognized in net periodic benefit cost (income) at beginning of year |  |  | $ | 132,078 |  |  | $ | — |
Experience (gain) loss |  |  | (23,632) |  |  | 3,133 |
Regulatory asset (liability) adjustment |  |  | 11,797 |  |  | (3,133) |
Amortization recognized in net periodic benefit (income) |  |  | (8,181) |  |  | — |
Amounts in AOCI not yet recognized in net periodic benefit cost at end of year |  |  | $ | 112,062 |  |  | $ | — |
The following table presents pre-tax information about net actuarial loss in AOCI as of December 31, 2021.
| December 31, 2021
| PNM |  | TNMP
| (In thousands)
Amount in AOCI not yet recognized in net periodic benefit cost at beginning of year | $ | 2,259 |  |  | $ | — |
Experience (gain) | (657) |  |  | (211) |
Regulatory asset adjustment | 381 |  |  | 211 |
Amortization recognized in net periodic benefit (income) | (167) |  |  | — |
Amount in AOCI not yet recognized in net periodic benefit cost at end of year | $ | 1,816 |  |  | $ | — |

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