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Pension and Other Postretirement Benefits - Pre-Tax Information about Prior Service Cost and Net Actuarial (Gain) loss in AOCI (Details) $ in Thousands | 12 Months Ended
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Dec. 31, 2022 USD ($)
Public Service Company of New Mexico | Pension Plan |
Net actuarial (gain) loss |
Amounts in AOCI not yet recognized in net periodic benefit cost (income) at beginning of year | $ 112,063
Experience loss | 27,531
Regulatory asset (liability) adjustment | (22,282)
Amortization recognized in net periodic benefit (income) | (6,967)
Amounts in AOCI not yet recognized in net periodic benefit cost at end of year | 110,345
Public Service Company of New Mexico | Executive Retirement Program |
Net actuarial (gain) loss |
Amounts in AOCI not yet recognized in net periodic benefit cost (income) at beginning of year | 1,816
Experience loss | (1,628)
Regulatory asset (liability) adjustment | 944
Amortization recognized in net periodic benefit (income) | (137)
Amounts in AOCI not yet recognized in net periodic benefit cost at end of year | 995
Texas-New Mexico Power Company | Pension Plan |
Net actuarial (gain) loss |
Amounts in AOCI not yet recognized in net periodic benefit cost (income) at beginning of year | 0
Experience loss | 4,602
Regulatory asset (liability) adjustment | (4,602)
Amortization recognized in net periodic benefit (income) | 0
Amounts in AOCI not yet recognized in net periodic benefit cost at end of year | 0
Texas-New Mexico Power Company | Executive Retirement Program |
Net actuarial (gain) loss |
Amounts in AOCI not yet recognized in net periodic benefit cost (income) at beginning of year | 0
Experience loss | (2)
Regulatory asset (liability) adjustment | 2
Amortization recognized in net periodic benefit (income) | 0
Amounts in AOCI not yet recognized in net periodic benefit cost at end of year | $ 0

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