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Pension and Other Postretirement Benefit Plans (Tables)

9 Months Ended

Sep. 30, 2021

Retirement Benefits [Abstract]

Schedule of Net Benefit Costs

The following table presents the components of the PNM Plans’ net periodic benefit cost:

			Three Months Ended September 30,
			Pension Plan												OPEB Plan												Executive Retirement Program
			2021						2020						2021						2020						2021						2020
			(In thousands)
Components of Net Periodic Benefit Cost
Service cost			$	—					$	—					$	5					$	9					$	—					$	—
Interest cost			4,036						4,985						476						613						90						123
Expected return on plan assets			(7,133)						(7,363)						(1,042)						(1,387)						—						—
Amortization of net loss			4,541						4,465						—						87						99						101
Amortization of prior service cost			—						(138)												—						—						—
Net Periodic Benefit Cost (Income)			$	1,444					$	1,949					$	(561)					$	(678)					$	189					$	224

			Nine Months Ended September 30,
			Pension Plan												OPEB Plan												Executive Retirement Program
			2021						2020						2021						2020						2021						2020
			(In thousands)
Components of Net Periodic Benefit Cost
Service cost			$	—					$	—					$	18					$	29					$	—					$	—
Interest cost			12,107						14,956						1,430						1,840						271						367
Expected return on plan assets			(21,398)						(22,089)						(3,125)						(4,161)						—						—
Amortization of net loss			13,624						13,395						—						261						296						302
Amortization of prior service cost			—						(415)						—						—						—						—
Net Periodic Benefit Cost (Income)			$	4,333					$	5,847					$	(1,677)					$	(2,031)					$	567					$	669

The following table presents the components of the TNMP Plans’ net periodic benefit cost:

			Three Months Ended September 30,
			Pension Plan												OPEB Plan												Executive Retirement Program
			2021						2020						2021						2020						2021						2020
			(In thousands)
Components of Net Periodic Benefit Cost
Service cost			$	—					$	—					$	12					$	12					$	—					$	—
Interest cost			435						545						77						93						4						6
Expected return on plan assets			(795)						(821)						(101)						(136)						—						—
Amortization of net (gain) loss			311						315						(81)						(81)						8						6
Amortization of prior service cost			—						—						—						—						—						—
Net Periodic Benefit Cost (Income)			$	(49)					$	39					$	(93)					$	(112)					$	12					$	12

			Nine Months Ended September 30,
			Pension Plan												OPEB Plan												Executive Retirement Program
			2021						2020						2021						2020						2021						2020
			(In thousands)
Components of Net Periodic Benefit Cost
Service cost			$	—					$	—					$	34					$	35					$	—					$	—
Interest cost			1,306						1,633						231						280						13						17
Expected return on plan assets			(2,386)						(2,463)						(304)						(404)						—						—
Amortization of net (gain) loss			935						944						(242)						(243)						25						18
Amortization of prior service cost			—						—						—						—						—						—
Net Periodic Benefit Cost (Income)			$	(145)					$	114					$	(281)					$	(332)					$	38					$	35

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- References

No definition available.

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- Definition

Tabular disclosure of the components of net benefit costs for pension plans and/or other employee benefit plans including service cost, interest cost, expected return on plan assets, gain (loss), prior service cost or credit, transition asset or obligation, and gain (loss) recognized due to settlements or curtailments.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (h)
-URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920

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