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Condensed Consolidated Statements of Comprehensive Income (Parenthetical) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Unrealized holding gains (losses) arising during the period, income tax (expense) benefit	$ 845	$ 1,088
Reclassification adjustment for (gains) losses included in net earnings, income tax expense (benefit)	919	301
Pension liability adjustment, income tax expense (benefit)	(530)	(527)
Change in fair market value, net of income tax (expense) benefit of $311 and $(472)	(317)	507
Reclassification adjustment for (gains) losses included in net earnings, net of income tax expense (benefit) of $(68) and $13	158	10
PNM
Unrealized holding gains (losses) arising during the period, income tax (expense) benefit	845	1,088
Reclassification adjustment for (gains) losses included in net earnings, income tax expense (benefit)	919	301
Pension liability adjustment, income tax expense (benefit)	$ (530)	$ (527)

X

- Definition

Amount, after reclassification adjustment, of tax (expense) benefit for (increase) decrease in accumulated other comprehensive income for defined benefit plan, attributable to parent.

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Amount, before reclassification, of tax expense (benefit) for gain (loss) from derivative instrument designated and qualifying as cash flow hedge included in assessment of hedge effectiveness.

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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.

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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.

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