Condensed Consolidated Statements of Earnings (Loss) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Electric Operating Revenues:
Contracts with customers	$ 322,983	$ 315,698
Alternative revenue programs	426	636
Other electric operating revenue	10,213	33,311
Total electric operating revenues	333,622	349,645
Operating Expenses:
Administrative and general	46,032	52,336
Regulatory disallowances and restructuring costs	0	1,345
Depreciation and amortization	68,973	65,356
Transmission and distribution costs	17,286	16,678
Taxes other than income taxes	21,265	20,509
Total operating expenses	285,884	312,922
Operating income	47,738	36,723
Other Income and Deductions:
Interest income	3,423	3,588
Gains (losses) on investment securities	(32,849)	14,014
Other income	2,316	3,446
Other (deductions)	(3,473)	(3,252)
Net other income and deductions	(30,583)	17,796
Interest Charges	30,434	31,634
Earnings (Loss) before Income Taxes	(13,279)	22,885
Income Taxes (Benefits)	(1,880)	1,223
Net Earnings (Loss)	(11,399)	21,662
(Earnings) Attributable to Valencia Non-controlling Interest	(3,729)	(2,830)
Preferred Stock Dividend Requirements of Subsidiary	(132)	(132)
Net Earnings (Loss) Available for PNM Common Stock	$ (15,260)	$ 18,700
Net Earnings (Loss) Attributable to PNMR per Common Share:
Basic (dollars per share)	$ (0.19)	$ 0.23
Diluted (dollars per share)	(0.19)	0.23
Dividends Declared per Common Share (dollars per share)	$ 0.3075	$ 0.2900
Cost of energy
Electric Operating Revenues:
Total electric operating revenues	$ 333,622	$ 349,645
Operating Expenses:
Energy costs	98,710	121,626
Energy production costs
Operating Expenses:
Energy costs	33,618	35,072
PNM
Electric Operating Revenues:
Contracts with customers	235,759	235,941
Alternative revenue programs	2,161	66
Other electric operating revenue	10,213	33,311
Total electric operating revenues	248,133	269,318
Operating Expenses:
Administrative and general	41,668	47,402
Regulatory disallowances and restructuring costs	0	1,345
Depreciation and amortization	41,449	39,224
Transmission and distribution costs	10,915	10,633
Taxes other than income taxes	12,354	12,010
Total operating expenses	214,528	245,025
Operating income	33,605	24,293
Other Income and Deductions:
Interest income	3,496	3,656
Gains (losses) on investment securities	(32,849)	14,014
Other income	1,509	2,632
Other (deductions)	(2,687)	(2,288)
Net other income and deductions	(30,531)	18,014
Interest Charges	17,629	18,360
Earnings (Loss) before Income Taxes	(14,555)	23,947
Income Taxes (Benefits)	(2,359)	1,973
Net Earnings (Loss)	(12,196)	21,974
(Earnings) Attributable to Valencia Non-controlling Interest	(3,729)	(2,830)
Preferred Stock Dividend Requirements of Subsidiary	(132)	(132)
Net Earnings (Loss) Attributable to PNMR	(15,925)	19,144
Net Earnings (Loss) Available for PNM Common Stock	(16,057)	19,012
PNM | Cost of energy
Operating Expenses:
Energy costs	74,524	99,339
PNM | Energy production costs
Operating Expenses:
Energy costs	33,618	35,072
Texas-New Mexico Power Company
Electric Operating Revenues:
Contracts with customers	87,224	79,757
Alternative revenue programs	(1,735)	570
Other electric operating revenue	0	0
Total electric operating revenues	85,489	80,327
Operating Expenses:
Administrative and general	10,773	11,558
Depreciation and amortization	21,836	20,214
Transmission and distribution costs	6,371	6,045
Taxes other than income taxes	7,978	7,638
Total operating expenses	71,144	67,742
Operating income	14,345	12,585
Other Income and Deductions:
Other income	670	748
Other (deductions)	(109)	(163)
Net other income and deductions	561	585
Interest Charges	7,172	8,800
Earnings (Loss) before Income Taxes	7,734	4,370
Income Taxes (Benefits)	642	272
Net Earnings (Loss) Attributable to PNMR	7,092	4,098
Texas-New Mexico Power Company | Cost of energy
Operating Expenses:
Energy costs	$ 24,186	$ 22,287