XML 29 R32.htm IDEA: XBRL DOCUMENT  v2.3.0.11

Pension and Other Postretirement Benefit Plans (Tables)

6 Months Ended

Jun. 30, 2011

Public Service Company of New Mexico [Member]

Defined Benefit Plan Disclosure [Line Items]

Schedule of Net Benefit Costs [Table Text Block]

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

	Three Months Ended June 30,
	Pension Plan								Other Postretirement Benefits								Executive Retirement Program
	2011				2010				2011				2010				2011				2010
	(In thousands)
Components of Net Periodic
Benefit Cost
Service cost	$	—			$	—			$	65			$	105			$	—			$	—
Interest cost	8,202				8,518				1,345				1,913				233				263
Long-term return on plan assets	(9,269		)		(9,339		)		(1,347		)		(1,393		)		—				—
Amortization of net loss	2,302				1,613				801				1,372				23				18
Amortization of prior service cost	79				79				(662		)		(1,036		)		—				—
Net periodic benefit cost	$	1,314			$	871			$	202			$	961			$	256			$	281

	Six Months Ended June 30,
	Pension Plan								Other Postretirement Benefits								Executive Retirement Program
	2011				2010				2011				2010				2011				2010
									(In thousands)
Components of Net Periodic
Benefit Cost
Service cost	$	—			$	—			$	129			$	210			$	—			$	—
Interest cost	16,402				17,037				2,689				3,825				465				527
Long-term return on plan assets	(18,537		)		(18,677		)		(2,694		)		(2,786		)		—				—
Amortization of net loss	4,605				3,225				1,603				2,744				47				35
Amortization of prior service cost	158				158				(1,324		)		(2,071		)		—				—
Net periodic benefit cost	$	2,628			$	1,743			$	403			$	1,922			$	512			$	562

Texas-New Mexico Power Company [Member]

Defined Benefit Plan Disclosure [Line Items]

Schedule of Net Benefit Costs [Table Text Block]

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

	Three Months Ended June 30,
	Pension Plan								Other Postretirement Benefits								Executive Retirement Program
	2011				2010				2011				2010				2011				2010
									(In thousands)
Components of Net Periodic
Benefit Cost (Income)
Service cost	$	—			$	—			$	77			$	72			$	—			$	—
Interest cost	951				1,032				163				178				12				13
Long-term return on plan assets	(1,368		)		(1,449		)		(133		)		(129		)		—				—
Amortization of net (gain) loss	86				—				(48		)		(49		)		—				(1		)
Amortization of prior service cost	—				—				15				15				—				—
Net Periodic Benefit Cost (Income)	$	(331	)		$	(417	)		$	74			$	87			$	12			$	12

	Six Months Ended June 30,
	Pension Plan								Other Postretirement Benefits								Executive Retirement Program
	2011				2010				2011				2010				2011				2010
									(In thousands)
Components of Net Periodic
Benefit Cost (Income)
Service cost	$	—			$	—			$	153			$	144			$	—			$	—
Interest cost	1,900				2,063				327				356				23				26
Long-term return on plan assets	(2,735		)		(2,897		)		(267		)		(257		)		—				—
Amortization of net (gain) loss	173				—				(96		)		(98		)		—				(2		)
Amortization of prior service cost	—				—				30				30				—				—
Net Periodic Benefit Cost (Income)	$	(662	)		$	(834	)		$	147			$	175			$	23			$	24

X

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ Details

Name:	us-gaap_DefinedBenefitPlanDisclosureLineItems
Namespace Prefix:	us-gaap
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- 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
-Topic 715
-SubTopic 20
-Publisher FASB
-Number
-Article
-Subparagraph (h)
-Name Accounting Standards Codification
-Paragraph 1
-Section 50
-URI http://asc.fasb.org/extlink&oid=6962843&loc=d3e1928-114920

+ Details

Name:	us-gaap_ScheduleOfNetBenefitCostsTableTextBlock
Namespace Prefix:	us-gaap
Data Type:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration