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Lease Commitments Lease Commitments (Tables)

12 Months Ended

Dec. 31, 2012

Leases [Abstract]

Schedule of Rent Expense [Table Text Block]

Operating lease expense was:

	PNMR				PNM				TNMP
	(In thousands)
2012	$	84,794			$	78,483			$	2,871
2011	$	86,323			$	78,422			$	3,606
2010	$	79,491			$	71,209			$	3,737

Schedule of Future Minimum Rental Payments for Operating Leases [Table Text Block]

Future minimum operating lease payments at December 31, 2012 shown below have been reduced by PNM’s lease payments for amounts that will be returned to PNM on the lessor notes, which amounts vary but are approximately $39 million in 2013 and reduce thereafter to approximately $33 million annually in 2015:

	PNMR				PNM				TNMP
	(In thousands)
2013	$	44,040			$	40,217			$	481
2014	52,136				49,079				55
2015	31,389				29,601				—
2016	15,790				15,790				—
2017	12,519				12,519				—
Later years	94,883				94,883				—
	250,757				242,089				536
Future payments under non-cancelable subleases	233				—				—
Net minimum lease payments	$	250,524			$	242,089			$	536

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- Definition

Tabular disclosure of future minimum payments required in the aggregate and for each of the five succeeding fiscal years for operating leases having initial or remaining noncancelable lease terms in excess of one year and the total minimum rentals to be received in the future under noncancelable subleases as of the balance sheet date.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 840

-SubTopic 20

-Section 50

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6453985&loc=d3e41502-112717

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- Definition

Tabular disclosure of rental expense from operating leases for each period for which an income statement is presented with separate amounts for minimum rentals, contingent rentals, and sublease rentals. Rental payments under leases with terms of a month or less that were not renewed need not be included.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 840

-SubTopic 20

-Section 50

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6453985&loc=d3e41499-112717

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