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Consolidated Statements of Comprehensive Income (Loss) (Parenthetical) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Unrealized holding gains (losses) arising during the period, income tax (expense)	$ (6,534)	$ (963)	$ (10,927)
Reclassification adjustment for (gains) included in net earnings (loss), income tax expense	3,572	970	6,816
Experience gain (loss), income tax (expense) benefit	973	2,673	(919)
Reclassification adjustment for amortization of experience (gain) loss recognized as net periodic benefit cost, income tax (expense) benefit	(1,880)	(1,922)	(2,504)
Change in fair market value, income tax (expense)	888
Change in fair market value, income tax (expense)		(145)	(388)
Reclassification adjustment for (gains) losses included in net earnings (loss), income tax expense (benefit)	(186)
Reclassification adjustment for (gains) losses included in net earnings (loss), income tax expense (benefit)		(56)	(225)
Public Service Company of New Mexico
Unrealized holding gains (losses) arising during the period, income tax (expense)	(6,534)	(963)	(10,927)
Reclassification adjustment for (gains) included in net earnings (loss), income tax expense	3,572	970	6,816
Experience gain (loss), income tax (expense) benefit	0	2,637	(919)
Reclassification adjustment for amortization of experience (gain) loss recognized as net periodic benefit cost, income tax (expense) benefit	$ (1,880)	$ (1,922)	$ (2,504)

X

- Definition

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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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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