Condensed Consolidated Statements of Earnings - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Electric Operating Revenues:
Contracts with customers	$ 314,917	$ 338,659	$ 630,614	$ 642,010
Operating revenues	330,228	352,313	679,872	670,191
Operating Expenses:
Administrative and general	42,833	43,355	95,170	91,638
Regulatory disallowances and restructuring costs	149,254	1,794	150,599	1,794
Depreciation and amortization	66,065	60,063	131,421	118,785
Transmission and distribution costs	19,195	18,450	35,872	35,406
Taxes other than income taxes	19,809	19,723	40,317	39,602
Total operating expenses	423,843	272,984	736,764	544,730
Operating income (loss)	(93,615)	79,329	(56,892)	125,461
Other Income and Deductions:
Interest income	3,460	4,339	7,048	8,462
Gains (losses) on investment securities	4,599	(1,670)	18,613	(1,382)
Other income	3,350	4,796	6,795	8,265
Other (deductions)	(3,117)	(5,868)	(6,369)	(7,243)
Net other income and deductions	8,292	1,597	26,087	8,102
Interest Charges	29,791	33,321	61,425	66,376
Earnings (Loss) before Income Taxes	(115,114)	47,605	(92,230)	67,187
Income Taxes (Benefits)	(42,831)	5,156	(41,608)	5,939
Net Earnings (Loss)	(72,283)	42,449	(50,622)	61,248
(Earnings) Attributable to Valencia Non-controlling Interest	(3,499)	(4,109)	(6,328)	(7,786)
Preferred Stock Dividend Requirements of Subsidiary	(132)	(132)	(264)	(264)
Net Earnings (Loss) Available for PNM Common Stock	$ (75,914)	$ 38,208	$ (57,214)	$ 53,198
Net Earnings (Loss) Attributable to PNMR per Common Share:
Basic (dollars per share)	$ (0.95)	$ 0.48	$ (0.72)	$ 0.67
Diluted (dollars per share)	(0.95)	0.48	(0.72)	0.67
Dividends Declared per Common Share (dollars per share)	$ 0.290	$ 0.265	$ 0.580	$ 0.530
Alternative revenue programs
Electric Operating Revenues:
Operating revenues	$ 5,844	$ 5,660	$ 6,480	$ 6,584
Other electric operating revenue
Electric Operating Revenues:
Operating revenues	9,467	7,994	42,778	21,597
Cost of energy
Electric Operating Revenues:
Operating revenues	330,228	352,313	679,872	670,191
Operating Expenses:
Cost of energy and energy production costs	83,782	87,711	205,408	180,267
Energy production costs
Operating Expenses:
Cost of energy and energy production costs	42,905	41,888	77,977	77,238
PNM
Electric Operating Revenues:
Contracts with customers	228,061	254,728	464,002	477,291
Operating revenues	238,219	264,511	507,536	500,742
Operating Expenses:
Administrative and general	40,237	40,922	87,639	84,648
Regulatory disallowances and restructuring costs	149,254	1,794	150,599	1,794
Depreciation and amortization	39,811	38,213	79,036	74,840
Transmission and distribution costs	11,838	10,993	22,471	20,820
Taxes other than income taxes	11,285	11,461	23,295	23,069
Total operating expenses	354,196	211,632	599,221	419,572
Operating income (loss)	(115,977)	52,879	(91,685)	81,170
Other Income and Deductions:
Interest income	3,530	3,381	7,187	5,868
Gains (losses) on investment securities	4,599	(1,670)	18,613	(1,382)
Other income	1,920	2,292	4,552	4,684
Other (deductions)	(2,340)	(3,768)	(4,629)	(5,229)
Net other income and deductions	7,709	235	25,723	3,941
Interest Charges	18,526	19,988	36,886	40,818
Earnings (Loss) before Income Taxes	(126,794)	33,126	(102,848)	44,293
Income Taxes (Benefits)	(43,481)	2,345	(41,508)	1,997
Net Earnings (Loss)	(83,313)	30,781	(61,340)	42,296
(Earnings) Attributable to Valencia Non-controlling Interest	(3,499)	(4,109)	(6,328)	(7,786)
Net Earnings (Loss) Attributable to PNMR	(86,812)	26,672	(67,668)	34,510
Preferred Stock Dividend Requirements of Subsidiary	(132)	(132)	(264)	(264)
Net Earnings (Loss) Available for PNM Common Stock	(86,944)	26,540	(67,932)	34,246
PNM | Alternative revenue programs
Electric Operating Revenues:
Operating revenues	691	1,789	756	1,854
PNM | Other electric operating revenue
Electric Operating Revenues:
Operating revenues	9,467	7,994	42,778	21,597
PNM | Cost of energy
Operating Expenses:
Cost of energy and energy production costs	58,866	66,361	158,204	137,163
PNM | Energy production costs
Operating Expenses:
Cost of energy and energy production costs	42,905	41,888	77,977	77,238
Texas-New Mexico Power Company
Electric Operating Revenues:
Contracts with customers	86,856	83,931	166,612	164,719
Operating revenues	92,009	87,802	172,336	169,449
Operating Expenses:
Administrative and general	9,097	8,852	20,655	19,561
Depreciation and amortization	20,502	16,113	40,716	32,500
Transmission and distribution costs	7,357	7,457	13,401	14,586
Taxes other than income taxes	7,559	7,201	15,197	14,337
Total operating expenses	69,431	60,973	137,173	124,088
Operating income (loss)	22,578	26,829	35,163	45,361
Other Income and Deductions:
Other income	1,191	2,223	1,940	2,976
Other (deductions)	(460)	(1,391)	(623)	(1,060)
Net other income and deductions	731	832	1,317	1,916
Interest Charges	6,560	7,801	15,361	15,530
Earnings (Loss) before Income Taxes	16,749	19,860	21,119	31,747
Income Taxes (Benefits)	1,482	4,493	1,754	6,968
Net Earnings (Loss) Attributable to PNMR	15,267	15,367	19,365	24,779
Texas-New Mexico Power Company | Alternative revenue programs
Electric Operating Revenues:
Operating revenues	5,153	3,871	5,724	4,730
Texas-New Mexico Power Company | Other electric operating revenue
Electric Operating Revenues:
Operating revenues	0	0	0	0
Texas-New Mexico Power Company | Cost of energy
Operating Expenses:
Cost of energy and energy production costs	$ 24,916	$ 21,350	$ 47,204	$ 43,104