Consolidated Statements of Comprehensive Income - PNM (Parenthetical) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Unrealized holding gains (losses) arising during the period, income tax (expense) benefit	$ 225	$ (2,928)	$ 490
Reclassification adjustment for (gains) losses included in net earnings, income tax expense (benefit)	3,330	1,828	972
Pension liability adjustment, income tax expense (benefit)	815	(353)	1,159
Reclassification adjustment for amortization of experience losses recognized as net periodic benefit cost, income tax expense	(1,236)	(1,212)	(1,804)
PNM
Unrealized holding gains (losses) arising during the period, income tax (expense) benefit	225	(2,928)	490
Reclassification adjustment for (gains) losses included in net earnings, income tax expense (benefit)	3,330	1,828	972
Pension liability adjustment, income tax expense (benefit)	815	(353)	1,159
Reclassification adjustment for amortization of experience losses recognized as net periodic benefit cost, income tax expense	$ (1,236)	$ (1,212)	$ (1,804)

Amount of tax expense (benefit) for (increase) decrease in value of benefit obligation for change in actuarial assumptions and increase (decrease) in value of plan assets from experience different from that assumed of defined benefit plan, that has not been recognized in net periodic benefit (cost) credit.

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- Definition

Amount of tax expense (benefit) of reclassification adjustment from accumulated other comprehensive income for unrealized gain (loss) realized upon the sale of available-for-sale securities.

+ References

+ Details

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- Definition

Amount of tax expense (benefit) of reclassification adjustment from accumulated other comprehensive income (loss) for gain (loss) of defined benefit plan.

+ References

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Amount, before adjustment, of tax expense (benefit) for unrealized holding gain (loss) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). Excludes tax expense (benefit) for unrealized gain (loss) on investment in debt security measured at amortized cost (held-to-maturity) from transfer to available-for-sale.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Section 45
-Paragraph 12
-SubTopic 10
-Topic 220
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482790/220-10-45-12

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 220
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 10A
-Subparagraph (f)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482790/220-10-45-10A

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