Condensed Consolidated Statements of Comprehensive Income (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Net Earnings	$ 54,555	$ 57,864	$ 92,859	$ 96,456
Net Earnings	58,814	61,976	104,159	107,551
Unrealized Gain on Investment Securities:
Unrealized holding gains arising during the period, net of income tax (expense) benefit	6,322	7,587	11,512	23,511
Reclassification adjustment for (gains) included in net earnings, net of income tax expense	(1,411)	(6,481)	(5,551)	(19,509)
Pension Liability Adjustment:
Reclassification adjustment for amortization of experience (gain) loss recognized as net periodic benefit cost, net of income tax expense (benefit)	960	727	2,880	2,181
Fair Value Adjustment for Cash Flow Hedges:
Change in fair market value, net of income tax (expense) benefit	(238)	(92)	(236)	(270)
Reclassification adjustment for (gains) losses included in net earnings, net of income tax expense (benefit)	35	29	99	85
Total Other Comprehensive Income (Loss)	5,668	1,770	8,704	5,998
Comprehensive Income	64,482	63,746	112,863	113,549
Comprehensive (Income) Attributable to Valencia Non-controlling Interest	(4,127)	(3,980)	(10,904)	(10,699)
Preferred Stock Dividend Requirements of Subsidiary	(132)	(132)	(396)	(396)
Comprehensive Income Attributable to PNMR	60,223	59,634	101,563	102,454
Public Service Company of New Mexico [Member]
Net Earnings	47,823	50,911	85,516	85,607
Net Earnings	51,950	54,891	96,420	96,306
Unrealized Gain on Investment Securities:
Unrealized holding gains arising during the period, net of income tax (expense) benefit	6,322	7,587	11,512	23,511
Reclassification adjustment for (gains) included in net earnings, net of income tax expense	(1,411)	(6,481)	(5,551)	(19,509)
Pension Liability Adjustment:
Reclassification adjustment for amortization of experience (gain) loss recognized as net periodic benefit cost, net of income tax expense (benefit)	960	727	2,880	2,181
Fair Value Adjustment for Cash Flow Hedges:
Total Other Comprehensive Income (Loss)	5,871	1,833	8,841	6,183
Comprehensive Income	57,821	56,724	105,261	102,489
Comprehensive (Income) Attributable to Valencia Non-controlling Interest	(4,127)	(3,980)	(10,904)	(10,699)
Comprehensive Income Attributable to PNMR	53,694	52,744	94,357	91,790
Texas-New Mexico Power Company [Member]
Net Earnings	10,106	9,084	22,170	20,113
Fair Value Adjustment for Cash Flow Hedges:
Change in fair market value, net of income tax (expense) benefit	(238)	(92)	(236)	(270)
Reclassification adjustment for (gains) losses included in net earnings, net of income tax expense (benefit)	35	29	99	85
Total Other Comprehensive Income (Loss)	(203)	(63)	(137)	(185)
Comprehensive Income Attributable to PNMR	$ 9,903	$ 9,021	$ 22,033	$ 19,928