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Pension and Other Postretirement Benefit Plans (Tables)

6 Months Ended

Jun. 30, 2017

Retirement Benefits [Abstract]

Schedule of Net Benefit Costs

The following tables present the components of the TNMP Plans’ net periodic benefit cost:

	Three Months Ended June 30,
	Pension Plan								OPEB Plan								Executive Retirement Program
	2017				2016				2017				2016				2017				2016
	(In thousands)
Components of Net Periodic Benefit Cost
Service cost	$	—			$	—			$	36			$	46			$	—			$	—
Interest cost	722				826				139				169				8				10
Expected return on plan assets	(945		)		(986		)		(114		)		(122		)		—				—
Amortization of net (gain) loss	231				175				(20		)		(10		)		2				1
Amortization of prior service cost	—				—				—				—				—				—
Net Periodic Benefit Cost	$	8			$	15			$	41			$	83			$	10			$	11

	Six Months Ended June 30,
	Pension Plan								OPEB Plan								Executive Retirement Program
	2017				2016				2017				2016				2017				2016
	(In thousands)
Components of Net Periodic Benefit Cost
Service cost	$	—			$	—			$	72			$	93			$	—			$	—
Interest cost	1,443				1,652				278				339				17				20
Expected return on plan assets	(1,889		)		(1,971		)		(228		)		(245		)		—				—
Amortization of net (gain) loss	461				350				(40		)		(20		)		4				1
Amortization of prior service cost	—				—				—				—				—				—
Net Periodic Benefit Cost	$	15			$	31			$	82			$	167			$	21			$	21

The following tables present the components of the PNM Plans’ net periodic benefit cost:

	Three Months Ended June 30,
	Pension Plan								OPEB Plan								Executive Retirement Program
	2017				2016				2017				2016				2017				2016
	(In thousands)
Components of Net Periodic Benefit Cost
Service cost	$	—			$	—			$	24			$	35			$	—			$	—
Interest cost	6,727				7,577				1,006				1,087				174				203
Expected return on plan assets	(8,451		)		(8,854		)		(1,308		)		(1,371		)		—				—
Amortization of net (gain) loss	4,001				3,455				921				286				78				64
Amortization of prior service cost	(241		)		(241		)		(416		)		(7		)		—				—
Net periodic benefit cost	$	2,036			$	1,937			$	227			$	30			$	252			$	267

	Six Months Ended June 30,
	Pension Plan								OPEB Plan								Executive Retirement Program
	2017				2016				2017				2016				2017				2016
	(In thousands)
Components of Net Periodic Benefit Cost
Service cost	$	—			$	—			$	48			$	70			$	—			$	—
Interest cost	13,454				15,154				2,013				2,173				349				406
Expected return on plan assets	(16,901		)		(17,708		)		(2,615		)		(2,742		)		—				—
Amortization of net (gain) loss	8,003				6,910				1,841				572				157				128
Amortization of prior service cost	(483		)		(483		)		(832		)		(15		)		—				—
Net periodic benefit cost	$	4,073			$	3,873			$	455			$	58			$	506			$	534

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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://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (h)
-URI http://asc.fasb.org/extlink&oid=82843861&loc=d3e1928-114920

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