$TXNM
TXNM ENERGY INC Stock $txnm

$txnm Overview Financials Valuation SEC Filings Company Website

2023 Q1 Form 10-K Financial Statement

#000110842623000006 Filed on February 28, 2023

Income Statement

Concept	2023 Q1	2022 Q4	2022
Revenue	$544.1M	$575.8M	$2.250B
YoY Change	22.51%	32.65%	26.39%
Cost Of Revenue
YoY Change
Gross Profit	$186.7M		$740.5M
YoY Change	21.05%		14.1%
Gross Profit Margin	34.32%		32.92%
Selling, General & Admin	$55.11M	$61.82M	$227.1M
YoY Change	-1.34%	-0.02%	-1.36%
% of Gross Profit	29.52%		30.68%
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$87.13M	$85.32M	$341.1M
YoY Change	2.9%	5.01%	6.53%
% of Gross Profit	46.66%		46.07%
Operating Expenses	$445.0M	$519.3M	$1.855B
YoY Change	18.33%	31.71%	26.14%
Operating Profit	$99.09M		$393.8M
YoY Change	45.58%		27.78%
Interest Expense	$40.92M	-$27.69M	$127.9M
YoY Change	56.08%	48.14%	32.03%
% of Operating Profit	41.3%		32.48%
Other Income/Expense, Net	$2.493M	$404.0K	$13.88M
YoY Change	11.24%	-54.35%	-25.21%
Pretax Income	$70.05M	$29.25M	$211.3M
YoY Change	223.48%	37.66%	-13.55%
Income Tax	$9.780M	$9.148M	$26.13M
% Of Pretax Income	13.96%	31.28%	12.37%
Net Earnings	$60.27M	$15.75M	$185.2M
YoY Change	213.63%	38.7%	-12.59%
Net Earnings / Revenue	11.08%	2.73%	8.23%
Basic Earnings Per Share	$0.64		$1.97
Diluted Earnings Per Share	$0.64	$0.18	$1.97
COMMON SHARES
Basic Shares Outstanding	85.83M shares	85.83M shares	86.12M shares
Diluted Shares Outstanding	86.14M shares		86.17M shares

Balance Sheet

Concept	2023 Q1	2022 Q4	2022
SHORT-TERM ASSETS
Cash & Short-Term Investments	$4.132M	$4.078M	$4.078M
YoY Change	-5.86%	269.38%	269.38%
Cash & Equivalents	$4.132M	$4.078M	$4.078M
Short-Term Investments
Other Short-Term Assets	$11.33M	$31.62M	$133.8M
YoY Change	947.04%	1834.19%	20.04%
Inventory	$64.29M	$66.73M	$66.73M
Prepaid Expenses	$21.90M	$18.47M
Receivables	$129.3M	$183.7M	$183.7M
Other Receivables	$24.15M	$22.67M	$22.67M
Total Short-Term Assets	$351.9M	$411.0M	$411.0M
YoY Change	16.85%	26.61%	26.61%
LONG-TERM ASSETS
Property, Plant & Equipment	$7.091B	$7.056B	$7.056B
YoY Change	1.93%	2.88%	2.88%
Goodwill	$278.3M	$278.3M
YoY Change	0.0%	0.0%
Intangibles
YoY Change
Long-Term Investments	$102.2M	$90.62M	$508.3M
YoY Change	14.36%	1.64%	-8.01%
Other Assets	$1.098B	$1.004B	$1.004B
YoY Change	63.75%	53.64%	53.64%
Total Long-Term Assets	$9.001B	$8.846B	$8.846B
YoY Change	6.82%	6.04%	6.04%
TOTAL ASSETS
Total Short-Term Assets	$351.9M	$411.0M	$411.0M
Total Long-Term Assets	$9.001B	$8.846B	$8.846B
Total Assets	$9.353B	$9.257B	$9.257B
YoY Change	7.17%	6.81%	6.81%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$122.3M	$215.7M	$215.7M
YoY Change	3.81%	24.98%	24.98%
Accrued Expenses	$82.49M	$95.56M	$95.56M
YoY Change	-15.79%	-1.81%	-1.81%
Deferred Revenue	$6.317M	$6.117M
YoY Change	17.77%	20.06%
Short-Term Debt	$409.4M	$232.0M	$232.0M
YoY Change	376.05%	270.02%	270.02%
Long-Term Debt Due	$409.9M	$184.8M	$192.2M
YoY Change	128.46%	3.04%	3.78%
Total Short-Term Liabilities	$1.195B	$890.4M	$890.4M
YoY Change	77.62%	34.05%	34.05%
LONG-TERM LIABILITIES
Long-Term Debt	$3.668B	$3.893B	$3.909B
YoY Change	1.33%	10.6%	10.55%
Other Long-Term Liabilities	$1.357B	$1.379B	$1.379B
YoY Change	-7.44%	-6.04%	-6.04%
Total Long-Term Liabilities	$3.668B	$3.893B	$5.288B
YoY Change	1.33%	10.6%	5.68%
TOTAL LIABILITIES
Total Short-Term Liabilities	$1.195B	$890.4M	$890.4M
Total Long-Term Liabilities	$3.668B	$3.893B	$5.288B
Total Liabilities	$7.077B	$7.001B	$7.054B
YoY Change	8.1%	8.84%	8.73%
SHAREHOLDERS EQUITY
Retained Earnings	$852.3M	$828.9M
YoY Change	11.19%	2.3%
Common Stock	$1.424B	$1.429B
YoY Change	-0.1%	-0.01%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$2.212B	$2.192B	$2.203B
YoY Change
Total Liabilities & Shareholders Equity	$9.353B	$9.257B	$9.257B
YoY Change	7.17%	6.81%	6.81%

Cashflow Statement

Concept	2023 Q1	2022 Q4	2022
OPERATING ACTIVITIES
Net Income	$60.27M	$15.75M	$185.2M
YoY Change	213.63%	38.7%	-12.59%
Depreciation, Depletion And Amortization	$87.13M	$85.32M	$341.1M
YoY Change	2.9%	5.01%	6.53%
Cash From Operating Activities	$131.5M	$139.8M	$567.3M
YoY Change	12.77%	0.31%	3.54%
INVESTING ACTIVITIES
Capital Expenditures	$264.4M	$209.7M	$912.6M
YoY Change	-225.96%	-147.78%	-197.6%
Acquisitions
YoY Change
Other Investing Activities	-$6.000K	-$29.24M	-$674.0K
YoY Change	-98.94%	203.04%	-7588.89%
Cash From Investing Activities	-$251.4M	-$238.9M	-$950.3M
YoY Change	18.68%	-46.73%	-0.2%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net			$7.980M
YoY Change			-21.22%
Debt Paid & Issued, Net			$179.5M
YoY Change			-87.28%
Cash From Financing Activities	$120.0M	97.59M	$386.0M
YoY Change	21.76%	-62.57%	7.96%
NET CHANGE
Cash From Operating Activities	$131.5M	139.8M	$567.3M
Cash From Investing Activities	-$251.4M	-238.9M	-$950.3M
Cash From Financing Activities	$120.0M	97.59M	$386.0M
Net Change In Cash	$54.00K	-1.544M	$2.974M
YoY Change	-98.36%	-96.81%	-106.35%
FREE CASH FLOW
Cash From Operating Activities	$131.5M	$139.8M	$567.3M
Capital Expenditures	$264.4M	$209.7M	$912.6M
Free Cash Flow	-$132.9M	-$69.89M	-$345.3M
YoY Change	-140.7%	-112.09%	-123.28%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2022	dei	Entity Central Index Key EntityCentralIndexKey	0001108426
CY2022	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2022
CY2022	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2022	dei	Amendment Flag AmendmentFlag	false
CY2021Q4	us-gaap	Finance Lease Liability Current Statement Of Financial Position Extensible List FinanceLeaseLiabilityCurrentStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2022#OtherLiabilitiesCurrent
CY2022Q4	us-gaap	Finance Lease Liability Current Statement Of Financial Position Extensible List FinanceLeaseLiabilityCurrentStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2022#OtherLiabilitiesCurrent
CY2021Q4	us-gaap	Finance Lease Liability Noncurrent Statement Of Financial Position Extensible List FinanceLeaseLiabilityNoncurrentStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2022#DeferredCreditsAndOtherLiabilitiesNoncurrent
CY2022Q4	us-gaap	Finance Lease Liability Noncurrent Statement Of Financial Position Extensible List FinanceLeaseLiabilityNoncurrentStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2022#DeferredCreditsAndOtherLiabilitiesNoncurrent
CY2022	dei	Document Type DocumentType	10-K
CY2022	dei	Document Annual Report DocumentAnnualReport	true
CY2022	dei	Document Period End Date DocumentPeriodEndDate	2022-12-31
CY2022	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2022	dei	Document Transition Report DocumentTransitionReport	false
CY2022	dei	Entity Registrant Name EntityRegistrantName	PNM Resources, Inc.
CY2022	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	NM
CY2022	dei	Entity Address Address Line1 EntityAddressAddressLine1	414 Silver Ave. SW
CY2022	dei	Entity Address City Or Town EntityAddressCityOrTown	Albuquerque
CY2022	dei	Entity Address State Or Province EntityAddressStateOrProvince	NM
CY2022	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	87102
CY2022	dei	City Area Code CityAreaCode	505
CY2022	dei	Local Phone Number LocalPhoneNumber	241-2700
CY2022	dei	Entity File Number EntityFileNumber	001-32462
CY2022	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	85-0468296
CY2022	dei	Security12b Title Security12bTitle	Common Stock, no par value
CY2022	dei	Trading Symbol TradingSymbol	PNM
CY2022	dei	Security Exchange Name SecurityExchangeName	NYSE
CY2022	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	Yes
CY2022	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2022	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2022	dei	Entity Interactive Data Current EntityInteractiveDataCurrent	Yes
CY2022	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
CY2022	dei	Entity Small Business EntitySmallBusiness	false
CY2022	dei	Entity Emerging Growth Company EntityEmergingGrowthCompany	false
CY2022	dei	Icfr Auditor Attestation Flag IcfrAuditorAttestationFlag	true
CY2022	dei	Entity Shell Company EntityShellCompany	false
CY2023Q1	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	85834874	shares
CY2022Q2	dei	Entity Public Float EntityPublicFloat	4101190280	usd
CY2022	dei	Auditor Firm AuditorFirmId	185
CY2022	dei	Auditor Name AuditorName	KPMG LLP
CY2022	dei	Auditor Location AuditorLocation	Albuquerque, New Mexico
CY2022	us-gaap	Revenues Revenues	2249555000	usd
CY2021	us-gaap	Revenues Revenues	1779873000	usd
CY2020	us-gaap	Revenues Revenues	1523012000	usd
CY2022	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	227149000	usd
CY2021	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	230292000	usd
CY2020	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	216334000	usd
CY2022	pnm	Regulatory Disallowances And Restructuring Costs RegulatoryDisallowancesAndRestructuringCosts	832000	usd
CY2021	pnm	Regulatory Disallowances And Restructuring Costs RegulatoryDisallowancesAndRestructuringCosts	1194000	usd
CY2020	pnm	Regulatory Disallowances And Restructuring Costs RegulatoryDisallowancesAndRestructuringCosts	1098000	usd
CY2022	us-gaap	Cost Of Goods And Services Sold Depreciation And Amortization CostOfGoodsAndServicesSoldDepreciationAndAmortization	304853000	usd
CY2021	us-gaap	Cost Of Goods And Services Sold Depreciation And Amortization CostOfGoodsAndServicesSoldDepreciationAndAmortization	284107000	usd
CY2020	us-gaap	Cost Of Goods And Services Sold Depreciation And Amortization CostOfGoodsAndServicesSoldDepreciationAndAmortization	275612000	usd
CY2022	pnm	Transmission And Distribution Costs TransmissionAndDistributionCosts	94684000	usd
CY2021	pnm	Transmission And Distribution Costs TransmissionAndDistributionCosts	81335000	usd
CY2020	pnm	Transmission And Distribution Costs TransmissionAndDistributionCosts	77943000	usd
CY2022	us-gaap	Utilities Operating Expense Taxes UtilitiesOperatingExpenseTaxes	92989000	usd
CY2021	us-gaap	Utilities Operating Expense Taxes UtilitiesOperatingExpenseTaxes	86008000	usd
CY2020	us-gaap	Utilities Operating Expense Taxes UtilitiesOperatingExpenseTaxes	81526000	usd
CY2022	us-gaap	Utilities Operating Expense UtilitiesOperatingExpense	1855795000	usd
CY2021	us-gaap	Utilities Operating Expense UtilitiesOperatingExpense	1471720000	usd
CY2020	us-gaap	Utilities Operating Expense UtilitiesOperatingExpense	1237731000	usd
CY2022	us-gaap	Operating Income Loss OperatingIncomeLoss	393760000	usd
CY2021	us-gaap	Operating Income Loss OperatingIncomeLoss	308153000	usd
CY2020	us-gaap	Operating Income Loss OperatingIncomeLoss	285281000	usd
CY2022	us-gaap	Investment Income Interest InvestmentIncomeInterest	16095000	usd
CY2021	us-gaap	Investment Income Interest InvestmentIncomeInterest	14662000	usd
CY2020	us-gaap	Investment Income Interest InvestmentIncomeInterest	14223000	usd
CY2022	us-gaap	Gain Loss On Investments GainLossOnInvestments	-78357000	usd
CY2021	us-gaap	Gain Loss On Investments GainLossOnInvestments	16850000	usd
CY2020	us-gaap	Gain Loss On Investments GainLossOnInvestments	21599000	usd
CY2022	us-gaap	Other Income OtherIncome	21601000	usd
CY2021	us-gaap	Other Income OtherIncome	20200000	usd
CY2020	us-gaap	Other Income OtherIncome	19973000	usd
CY2022	us-gaap	Other Expenses OtherExpenses	13881000	usd
CY2021	us-gaap	Other Expenses OtherExpenses	18559000	usd
CY2020	us-gaap	Other Expenses OtherExpenses	18732000	usd
CY2022	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-54542000	usd
CY2021	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	33153000	usd
CY2020	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	37063000	usd
CY2022	us-gaap	Interest Expense InterestExpense	127908000	usd
CY2021	us-gaap	Interest Expense InterestExpense	96877000	usd
CY2020	us-gaap	Interest Expense InterestExpense	114392000	usd
CY2022	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	211310000	usd
CY2021	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	244429000	usd
CY2020	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	207952000	usd
CY2022	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	26130000	usd
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	32582000	usd
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	20636000	usd
CY2022	us-gaap	Profit Loss ProfitLoss	185180000	usd
CY2021	us-gaap	Profit Loss ProfitLoss	211847000	usd
CY2020	us-gaap	Profit Loss ProfitLoss	187316000	usd
CY2022	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	15122000	usd
CY2021	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	15490000	usd
CY2020	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	14013000	usd
CY2022	us-gaap	Dividends Preferred Stock DividendsPreferredStock	528000	usd
CY2021	us-gaap	Dividends Preferred Stock DividendsPreferredStock	528000	usd
CY2020	us-gaap	Dividends Preferred Stock DividendsPreferredStock	528000	usd
CY2022	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	169530000	usd
CY2021	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	195829000	usd
CY2020	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	172775000	usd
CY2022	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.97
CY2021	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.28
CY2020	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.16
CY2022	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.97
CY2021	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.27
CY2020	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.15
CY2022	us-gaap	Profit Loss ProfitLoss	185180000	usd
CY2021	us-gaap	Profit Loss ProfitLoss	211847000	usd
CY2020	us-gaap	Profit Loss ProfitLoss	187316000	usd
CY2022	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	-490000	usd
CY2021	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	-478000	usd
CY2020	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	5736000	usd
CY2022	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	-1438000	usd
CY2021	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	-1403000	usd
CY2020	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	16850000	usd
CY2022	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax	972000	usd
CY2021	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax	2480000	usd
CY2020	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax	2412000	usd
CY2022	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	2855000	usd
CY2021	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	7285000	usd
CY2020	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	7085000	usd
CY2022	us-gaap	Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Tax OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodTax	-1159000	usd
CY2021	us-gaap	Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Tax OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodTax	3076000	usd
CY2020	us-gaap	Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Tax OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodTax	1562000	usd
CY2022	us-gaap	Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Net Of Tax OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax	-3406000	usd
CY2021	us-gaap	Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Net Of Tax OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax	9035000	usd
CY2020	us-gaap	Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Net Of Tax OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax	4587000	usd
CY2022	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossTax	-1804000	usd
CY2021	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossTax	-2120000	usd
CY2020	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossTax	-2108000	usd
CY2022	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax	-5300000	usd
CY2021	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax	-6228000	usd
CY2020	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax	-6192000	usd
CY2022	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Before Reclassification Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationTax	-3121000	usd
CY2021	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Before Reclassification Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationTax	-458000	usd
CY2020	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Before Reclassification Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationTax	-323000	usd
CY2022	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Before Reclassification After Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax	9164000	usd
CY2021	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Before Reclassification After Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax	1346000	usd
CY2020	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Before Reclassification After Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax	948000	usd
CY2022	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationTax	299000	usd
CY2021	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationTax	229000	usd
CY2020	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationTax	442000	usd
CY2022	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification After Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax	877000	usd
CY2021	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification After Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax	674000	usd
CY2020	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification After Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax	1298000	usd
CY2022	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	5888000	usd
CY2021	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	7247000	usd
CY2020	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	20194000	usd
CY2022	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	191068000	usd
CY2021	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	219094000	usd
CY2020	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	207510000	usd
CY2022	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	15122000	usd
CY2021	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	15490000	usd
CY2020	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	14013000	usd
CY2022	pnm	Preferred Stock Dividend Requirements Of Subsidiary PreferredStockDividendRequirementsOfSubsidiary	528000	usd
CY2021	pnm	Preferred Stock Dividend Requirements Of Subsidiary PreferredStockDividendRequirementsOfSubsidiary	528000	usd
CY2020	pnm	Preferred Stock Dividend Requirements Of Subsidiary PreferredStockDividendRequirementsOfSubsidiary	528000	usd
CY2022	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	175418000	usd
CY2021	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	203076000	usd
CY2020	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	192969000	usd
CY2022	us-gaap	Profit Loss ProfitLoss	185180000	usd
CY2021	us-gaap	Profit Loss ProfitLoss	211847000	usd
CY2020	us-gaap	Profit Loss ProfitLoss	187316000	usd
CY2022	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	341123000	usd
CY2021	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	320210000	usd
CY2020	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	314668000	usd
CY2022	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	24533000	usd
CY2021	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	30747000	usd
CY2020	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	20405000	usd
CY2022	us-gaap	Gain Loss On Investments GainLossOnInvestments	-78357000	usd
CY2021	us-gaap	Gain Loss On Investments GainLossOnInvestments	16850000	usd
CY2020	us-gaap	Gain Loss On Investments GainLossOnInvestments	21599000	usd
CY2022	us-gaap	Share Based Compensation ShareBasedCompensation	7825000	usd
CY2021	us-gaap	Share Based Compensation ShareBasedCompensation	9446000	usd
CY2020	us-gaap	Share Based Compensation ShareBasedCompensation	8141000	usd
CY2022	pnm	Regulatory Disallowances And Restructuring Costs RegulatoryDisallowancesAndRestructuringCosts	832000	usd
CY2021	pnm	Regulatory Disallowances And Restructuring Costs RegulatoryDisallowancesAndRestructuringCosts	1194000	usd
CY2020	pnm	Regulatory Disallowances And Restructuring Costs RegulatoryDisallowancesAndRestructuringCosts	1098000	usd
CY2022	us-gaap	Public Utilities Allowance For Funds Used During Construction Capitalized Cost Of Equity PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity	13799000	usd
CY2021	us-gaap	Public Utilities Allowance For Funds Used During Construction Capitalized Cost Of Equity PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity	13217000	usd
CY2020	us-gaap	Public Utilities Allowance For Funds Used During Construction Capitalized Cost Of Equity PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity	11254000	usd
CY2022	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-2377000	usd
CY2021	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-5457000	usd
CY2020	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-3497000	usd
CY2022	pnm	Increase Decrease In Accounts Receivable And Unbilled Revenues IncreaseDecreaseInAccountsReceivableAndUnbilledRevenues	73099000	usd
CY2021	pnm	Increase Decrease In Accounts Receivable And Unbilled Revenues IncreaseDecreaseInAccountsReceivableAndUnbilledRevenues	25924000	usd
CY2020	pnm	Increase Decrease In Accounts Receivable And Unbilled Revenues IncreaseDecreaseInAccountsReceivableAndUnbilledRevenues	42035000	usd
CY2022	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	8528000	usd
CY2021	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	-1356000	usd
CY2020	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	-11512000	usd
CY2022	us-gaap	Increase Decrease In Other Current Assets IncreaseDecreaseInOtherCurrentAssets	-17159000	usd
CY2021	us-gaap	Increase Decrease In Other Current Assets IncreaseDecreaseInOtherCurrentAssets	-1838000	usd
CY2020	us-gaap	Increase Decrease In Other Current Assets IncreaseDecreaseInOtherCurrentAssets	8135000	usd
CY2022	us-gaap	Increase Decrease In Other Noncurrent Assets IncreaseDecreaseInOtherNoncurrentAssets	-5002000	usd
CY2021	us-gaap	Increase Decrease In Other Noncurrent Assets IncreaseDecreaseInOtherNoncurrentAssets	-31135000	usd
CY2020	us-gaap	Increase Decrease In Other Noncurrent Assets IncreaseDecreaseInOtherNoncurrentAssets	-29923000	usd
CY2022	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	47568000	usd
CY2021	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	10640000	usd
CY2020	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	7403000	usd
CY2022	pnm	Increase Decrease In Accrued Interest And Taxes IncreaseDecreaseInAccruedInterestAndTaxes	9205000	usd
CY2021	pnm	Increase Decrease In Accrued Interest And Taxes IncreaseDecreaseInAccruedInterestAndTaxes	2692000	usd
CY2020	pnm	Increase Decrease In Accrued Interest And Taxes IncreaseDecreaseInAccruedInterestAndTaxes	-9347000	usd
CY2022	us-gaap	Increase Decrease In Other Current Liabilities IncreaseDecreaseInOtherCurrentLiabilities	-28516000	usd
CY2021	us-gaap	Increase Decrease In Other Current Liabilities IncreaseDecreaseInOtherCurrentLiabilities	6894000	usd
CY2020	us-gaap	Increase Decrease In Other Current Liabilities IncreaseDecreaseInOtherCurrentLiabilities	23740000	usd
CY2022	us-gaap	Increase Decrease In Other Noncurrent Liabilities IncreaseDecreaseInOtherNoncurrentLiabilities	-27935000	usd
CY2021	us-gaap	Increase Decrease In Other Noncurrent Liabilities IncreaseDecreaseInOtherNoncurrentLiabilities	-29592000	usd
CY2020	us-gaap	Increase Decrease In Other Noncurrent Liabilities IncreaseDecreaseInOtherNoncurrentLiabilities	-29633000	usd
CY2022	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	567284000	usd
CY2021	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	547873000	usd
CY2020	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	485700000	usd
CY2022	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	912557000	usd
CY2021	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	935016000	usd
CY2020	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	679028000	usd
CY2022	us-gaap	Proceeds From Sale And Maturity Of Marketable Securities ProceedsFromSaleAndMaturityOfMarketableSecurities	526448000	usd
CY2021	us-gaap	Proceeds From Sale And Maturity Of Marketable Securities ProceedsFromSaleAndMaturityOfMarketableSecurities	459867000	usd
CY2020	us-gaap	Proceeds From Sale And Maturity Of Marketable Securities ProceedsFromSaleAndMaturityOfMarketableSecurities	590998000	usd
CY2022	us-gaap	Payments To Acquire Marketable Securities PaymentsToAcquireMarketableSecurities	564912000	usd
CY2021	us-gaap	Payments To Acquire Marketable Securities PaymentsToAcquireMarketableSecurities	477672000	usd
CY2020	us-gaap	Payments To Acquire Marketable Securities PaymentsToAcquireMarketableSecurities	607591000	usd
CY2022	us-gaap	Payments To Acquire Equity Method Investments PaymentsToAcquireEquityMethodInvestments	0	usd
CY2021	us-gaap	Payments To Acquire Equity Method Investments PaymentsToAcquireEquityMethodInvestments	0	usd
CY2020	us-gaap	Payments To Acquire Equity Method Investments PaymentsToAcquireEquityMethodInvestments	23250000	usd
CY2022	us-gaap	Equity Method Investment Dividends Or Distributions EquityMethodInvestmentDividendsOrDistributions	0	usd
CY2021	us-gaap	Equity Method Investment Dividends Or Distributions EquityMethodInvestmentDividendsOrDistributions	572000	usd
CY2020	us-gaap	Equity Method Investment Dividends Or Distributions EquityMethodInvestmentDividendsOrDistributions	0	usd
CY2022	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	-674000	usd
CY2021	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	9000	usd
CY2020	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	14928000	usd
CY2022	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-950347000	usd
CY2021	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-952258000	usd
CY2020	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-733799000	usd
CY2022	us-gaap	Proceeds From Repayments Of Lines Of Credit ProceedsFromRepaymentsOfLinesOfCredit	169300000	usd
CY2021	us-gaap	Proceeds From Repayments Of Lines Of Credit ProceedsFromRepaymentsOfLinesOfCredit	30700000	usd
CY2020	us-gaap	Proceeds From Repayments Of Lines Of Credit ProceedsFromRepaymentsOfLinesOfCredit	-153100000	usd
CY2022	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	558000000	usd
CY2021	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	1816345000	usd
CY2020	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	1267845000	usd
CY2022	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	179500000	usd
CY2021	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	1411345000	usd
CY2020	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	977845000	usd
CY2022	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	0	usd
CY2021	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	0	usd
CY2020	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	283208000	usd
CY2022	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	0	usd
CY2020	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	24000	usd
CY2022	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	7980000	usd
CY2021	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	10130000	usd
CY2020	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	11984000	usd
CY2022	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	119839000	usd
CY2021	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	112972000	usd
CY2020	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	98502000	usd
CY2022	us-gaap	Payments Of Dividends Minority Interest PaymentsOfDividendsMinorityInterest	17533000	usd
CY2021	us-gaap	Payments Of Dividends Minority Interest PaymentsOfDividendsMinorityInterest	19094000	usd
CY2020	us-gaap	Payments Of Dividends Minority Interest PaymentsOfDividendsMinorityInterest	18056000	usd
CY2022	pnm	Proceeds From Transmission Interconnection Arrangements ProceedsFromTransmissionInterconnectionArrangements	96550000	usd
CY2021	pnm	Proceeds From Transmission Interconnection Arrangements ProceedsFromTransmissionInterconnectionArrangements	80558000	usd
CY2020	pnm	Proceeds From Transmission Interconnection Arrangements ProceedsFromTransmissionInterconnectionArrangements	11452000	usd
CY2022	pnm	Repayment Of Transmission Interconnection Agreements RepaymentOfTransmissionInterconnectionAgreements	107397000	usd
CY2021	pnm	Repayment Of Transmission Interconnection Agreements RepaymentOfTransmissionInterconnectionAgreements	10195000	usd
CY2020	pnm	Repayment Of Transmission Interconnection Agreements RepaymentOfTransmissionInterconnectionAgreements	5905000	usd
CY2022	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-5564000	usd
CY2021	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-6306000	usd
CY2020	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-4943000	usd
CY2022	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	386037000	usd
CY2021	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	357561000	usd
CY2020	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	292194000	usd
CY2022	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	2974000	usd
CY2021	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-46824000	usd
CY2020	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	44095000	usd
CY2021Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	1104000	usd
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	47928000	usd
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	3833000	usd
CY2022Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	4078000	usd
CY2021Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	1104000	usd
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	47928000	usd
CY2022	us-gaap	Interest Paid Net InterestPaidNet	118485000	usd
CY2021	us-gaap	Interest Paid Net InterestPaidNet	91276000	usd
CY2020	us-gaap	Interest Paid Net InterestPaidNet	106575000	usd
CY2022	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	-1011000	usd
CY2021	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	1042000	usd
CY2020	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	969000	usd
CY2022	pnm	Increase Decreaseincapitalexpendituresincurredbutnotyetpaid IncreaseDecreaseincapitalexpendituresincurredbutnotyetpaid	4455000	usd
CY2021	pnm	Increase Decreaseincapitalexpendituresincurredbutnotyetpaid IncreaseDecreaseincapitalexpendituresincurredbutnotyetpaid	7362000	usd
CY2020	pnm	Increase Decreaseincapitalexpendituresincurredbutnotyetpaid IncreaseDecreaseincapitalexpendituresincurredbutnotyetpaid	-58796000	usd
CY2022	us-gaap	Other Significant Noncash Transaction Value Of Consideration Given1 OtherSignificantNoncashTransactionValueOfConsiderationGiven1	0	usd
CY2021	us-gaap	Other Significant Noncash Transaction Value Of Consideration Given1 OtherSignificantNoncashTransactionValueOfConsiderationGiven1	0	usd
CY2020	us-gaap	Other Significant Noncash Transaction Value Of Consideration Given1 OtherSignificantNoncashTransactionValueOfConsiderationGiven1	801000	usd
CY2022Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	4078000	usd
CY2021Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	1104000	usd
CY2022Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	4925000	usd
CY2021Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	7265000	usd
CY2022Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	183669000	usd
CY2021Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	123292000	usd
CY2022Q4	us-gaap	Unbilled Receivables Current UnbilledReceivablesCurrent	63473000	usd
CY2021Q4	us-gaap	Unbilled Receivables Current UnbilledReceivablesCurrent	57736000	usd
CY2022Q4	us-gaap	Other Receivables OtherReceivables	20320000	usd
CY2021Q4	us-gaap	Other Receivables OtherReceivables	18784000	usd
CY2022Q4	us-gaap	Inventory Net InventoryNet	66733000	usd
CY2021Q4	us-gaap	Inventory Net InventoryNet	65061000	usd
CY2022Q4	us-gaap	Regulatory Assets Current RegulatoryAssetsCurrent	20265000	usd
CY2021Q4	us-gaap	Regulatory Assets Current RegulatoryAssetsCurrent	14785000	usd
CY2022Q4	us-gaap	Prepaid Expense Current PrepaidExpenseCurrent	18465000	usd
CY2021Q4	us-gaap	Prepaid Expense Current PrepaidExpenseCurrent	37325000	usd
CY2022Q4	us-gaap	Income Taxes Receivable IncomeTaxesReceivable	2351000	usd
CY2021Q4	us-gaap	Income Taxes Receivable IncomeTaxesReceivable	4878000	usd
CY2022Q4	us-gaap	Other Assets Current OtherAssetsCurrent	31624000	usd
CY2021Q4	us-gaap	Other Assets Current OtherAssetsCurrent	1635000	usd
CY2022Q4	us-gaap	Assets Current AssetsCurrent	410978000	usd
CY2021Q4	us-gaap	Assets Current AssetsCurrent	324600000	usd
CY2022Q4	us-gaap	Available For Sale Securities Debt Securities Noncurrent AvailableForSaleSecuritiesDebtSecuritiesNoncurrent	417476000	usd
CY2021Q4	us-gaap	Available For Sale Securities Debt Securities Noncurrent AvailableForSaleSecuritiesDebtSecuritiesNoncurrent	463126000	usd
CY2022Q4	us-gaap	Equity Method Investments EquityMethodInvestments	90620000	usd
CY2021Q4	us-gaap	Equity Method Investments EquityMethodInvestments	89158000	usd
CY2022Q4	us-gaap	Other Long Term Investments OtherLongTermInvestments	177000	usd
CY2021Q4	us-gaap	Other Long Term Investments OtherLongTermInvestments	265000	usd
CY2022Q4	us-gaap	Property Plant And Equipment And Finance Lease Right Of Use Asset After Accumulated Depreciation And Amortization PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization	26841000	usd
CY2021Q4	us-gaap	Property Plant And Equipment And Finance Lease Right Of Use Asset After Accumulated Depreciation And Amortization PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization	25439000	usd
CY2022Q4	pnm	Total Other Property And Investments TotalOtherPropertyAndInvestments	535114000	usd
CY2021Q4	pnm	Total Other Property And Investments TotalOtherPropertyAndInvestments	577988000	usd
CY2022Q4	us-gaap	Public Utilities Property Plant And Equipment Plant In Service PublicUtilitiesPropertyPlantAndEquipmentPlantInService	9164564000	usd
CY2021Q4	us-gaap	Public Utilities Property Plant And Equipment Plant In Service PublicUtilitiesPropertyPlantAndEquipmentPlantInService	9357849000	usd
CY2022Q4	us-gaap	Public Utilities Property Plant And Equipment Accumulated Depreciation PublicUtilitiesPropertyPlantAndEquipmentAccumulatedDepreciation	2659952000	usd
CY2021Q4	us-gaap	Public Utilities Property Plant And Equipment Accumulated Depreciation PublicUtilitiesPropertyPlantAndEquipmentAccumulatedDepreciation	2952743000	usd
CY2022Q4	pnm	Public Utilities Property Plant And Equipment Net In Service PublicUtilitiesPropertyPlantAndEquipmentNetInService	6504612000	usd
CY2021Q4	pnm	Public Utilities Property Plant And Equipment Net In Service PublicUtilitiesPropertyPlantAndEquipmentNetInService	6405106000	usd
CY2022Q4	us-gaap	Construction In Progress Gross ConstructionInProgressGross	372988000	usd
CY2021Q4	us-gaap	Construction In Progress Gross ConstructionInProgressGross	248856000	usd
CY2022Q4	pnm	Accumulated Amortization Nuclear Fuel AccumulatedAmortizationNuclearFuel	43985000	usd
CY2021Q4	pnm	Accumulated Amortization Nuclear Fuel AccumulatedAmortizationNuclearFuel	41181000	usd
CY2022Q4	us-gaap	Nuclear Fuel Net Of Amortization NuclearFuelNetOfAmortization	95223000	usd
CY2021Q4	us-gaap	Nuclear Fuel Net Of Amortization NuclearFuelNetOfAmortization	98937000	usd
CY2022Q4	us-gaap	Public Utilities Property Plant And Equipment Net PublicUtilitiesPropertyPlantAndEquipmentNet	6972823000	usd
CY2021Q4	us-gaap	Public Utilities Property Plant And Equipment Net PublicUtilitiesPropertyPlantAndEquipmentNet	6752899000	usd
CY2022Q4	us-gaap	Regulatory Assets Noncurrent RegulatoryAssetsNoncurrent	846686000	usd
CY2021Q4	us-gaap	Regulatory Assets Noncurrent RegulatoryAssetsNoncurrent	514258000	usd
CY2022Q4	us-gaap	Goodwill Goodwill	278297000	usd
CY2021Q4	us-gaap	Goodwill Goodwill	278297000	usd
CY2022Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	55982000	usd
CY2021Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	79511000	usd
CY2022Q4	us-gaap	Other Deferred Costs Net OtherDeferredCostsNet	157497000	usd
CY2021Q4	us-gaap	Other Deferred Costs Net OtherDeferredCostsNet	139332000	usd
CY2022Q4	pnm	Total Deferred Charges And Other Assets TotalDeferredChargesAndOtherAssets	1338462000	usd
CY2021Q4	pnm	Total Deferred Charges And Other Assets TotalDeferredChargesAndOtherAssets	1011398000	usd
CY2022Q4	us-gaap	Assets Assets	9257377000	usd
CY2021Q4	us-gaap	Assets Assets	8666885000	usd
CY2022Q4	us-gaap	Short Term Borrowings ShortTermBorrowings	232000000	usd
CY2021Q4	us-gaap	Short Term Borrowings ShortTermBorrowings	62700000	usd
CY2022Q4	us-gaap	Long Term Debt Current LongTermDebtCurrent	184793000	usd
CY2021Q4	us-gaap	Long Term Debt Current LongTermDebtCurrent	179339000	usd
CY2022Q4	us-gaap	Accounts Payable Current AccountsPayableCurrent	215708000	usd
CY2021Q4	us-gaap	Accounts Payable Current AccountsPayableCurrent	172595000	usd
CY2022Q4	us-gaap	Contract With Customer Liability Current ContractWithCustomerLiabilityCurrent	6117000	usd
CY2021Q4	us-gaap	Contract With Customer Liability Current ContractWithCustomerLiabilityCurrent	5095000	usd
CY2022Q4	pnm	Accrued Interest And Taxes Payable AccruedInterestAndTaxesPayable	76783000	usd
CY2021Q4	pnm	Accrued Interest And Taxes Payable AccruedInterestAndTaxesPayable	70105000	usd
CY2022Q4	us-gaap	Regulatory Liability Current RegulatoryLiabilityCurrent	17002000	usd
CY2021Q4	us-gaap	Regulatory Liability Current RegulatoryLiabilityCurrent	8316000	usd
CY2022Q4	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	18781000	usd
CY2021Q4	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	27218000	usd
CY2022Q4	us-gaap	Dividends Payable Current DividendsPayableCurrent	31676000	usd
CY2021Q4	us-gaap	Dividends Payable Current DividendsPayableCurrent	132000	usd
CY2022Q4	pnm	Transmission Interconnection Arrangement Liabilities TransmissionInterconnectionArrangementLiabilities	20473000	usd
CY2021Q4	pnm	Transmission Interconnection Arrangement Liabilities TransmissionInterconnectionArrangementLiabilities	39564000	usd
CY2022Q4	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	87037000	usd
CY2021Q4	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	99149000	usd
CY2022Q4	us-gaap	Liabilities Current LiabilitiesCurrent	890370000	usd
CY2021Q4	us-gaap	Liabilities Current LiabilitiesCurrent	664213000	usd
CY2022Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	3892594000	usd
CY2021Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	3519580000	usd
CY2022Q4	us-gaap	Deferred Income Tax Liabilities Net DeferredIncomeTaxLiabilitiesNet	822831000	usd
CY2021Q4	us-gaap	Deferred Income Tax Liabilities Net DeferredIncomeTaxLiabilitiesNet	764850000	usd
CY2022Q4	us-gaap	Regulatory Liability Noncurrent RegulatoryLiabilityNoncurrent	755202000	usd
CY2021Q4	us-gaap	Regulatory Liability Noncurrent RegulatoryLiabilityNoncurrent	841393000	usd
CY2022Q4	us-gaap	Asset Retirement Obligations Noncurrent AssetRetirementObligationsNoncurrent	223377000	usd
CY2021Q4	us-gaap	Asset Retirement Obligations Noncurrent AssetRetirementObligationsNoncurrent	234146000	usd
CY2022Q4	us-gaap	Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent	32799000	usd
CY2021Q4	us-gaap	Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent	19057000	usd
CY2022Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	41336000	usd
CY2021Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	55993000	usd
CY2022Q4	us-gaap	Deferred Credits And Other Liabilities Noncurrent DeferredCreditsAndOtherLiabilitiesNoncurrent	342413000	usd
CY2021Q4	us-gaap	Deferred Credits And Other Liabilities Noncurrent DeferredCreditsAndOtherLiabilitiesNoncurrent	333195000	usd
CY2022Q4	us-gaap	Liabilities Other Than Longterm Debt Noncurrent LiabilitiesOtherThanLongtermDebtNoncurrent	2217958000	usd
CY2021Q4	us-gaap	Liabilities Other Than Longterm Debt Noncurrent LiabilitiesOtherThanLongtermDebtNoncurrent	2248634000	usd
CY2022Q4	us-gaap	Liabilities Liabilities	7000922000	usd
CY2021Q4	us-gaap	Liabilities Liabilities	6432427000	usd
CY2022Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		usd
CY2021Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		usd
CY2021Q4	pnm	Cumulative Preferred Stock Of Subsidiary Without Mandatory Redemption Requirements Par Or Stated Value Per Share CumulativePreferredStockOfSubsidiaryWithoutMandatoryRedemptionRequirementsParOrStatedValuePerShare	100
CY2022Q4	pnm	Cumulative Preferred Stock Of Subsidiary Without Mandatory Redemption Requirements Par Or Stated Value Per Share CumulativePreferredStockOfSubsidiaryWithoutMandatoryRedemptionRequirementsParOrStatedValuePerShare	100
CY2021Q4	pnm	Cumulative Preferred Stock Of Subsidiary Without Mandatory Redemption Requirements Shares Authorized CumulativePreferredStockOfSubsidiaryWithoutMandatoryRedemptionRequirementsSharesAuthorized	10000000	shares
CY2022Q4	pnm	Cumulative Preferred Stock Of Subsidiary Without Mandatory Redemption Requirements Shares Authorized CumulativePreferredStockOfSubsidiaryWithoutMandatoryRedemptionRequirementsSharesAuthorized	10000000	shares
CY2021Q4	pnm	Cumulative Preferred Stock Of Subsidiary Without Mandatory Redemption Requirements Shares Issued CumulativePreferredStockOfSubsidiaryWithoutMandatoryRedemptionRequirementsSharesIssued	115293	shares
CY2022Q4	pnm	Cumulative Preferred Stock Of Subsidiary Without Mandatory Redemption Requirements Shares Outstanding CumulativePreferredStockOfSubsidiaryWithoutMandatoryRedemptionRequirementsSharesOutstanding	115293	shares
CY2021Q4	pnm	Cumulative Preferred Stock Of Subsidiary Without Mandatory Redemption Requirements Shares Outstanding CumulativePreferredStockOfSubsidiaryWithoutMandatoryRedemptionRequirementsSharesOutstanding	115293	shares
CY2022Q4	pnm	Cumulative Preferred Stock Of Subsidiary Without Mandatory Redemption Requirements Shares Issued CumulativePreferredStockOfSubsidiaryWithoutMandatoryRedemptionRequirementsSharesIssued	115293	shares
CY2022Q4	pnm	Cumulative Preferred Stock Of Subsidiary Without Mandatory Redemption Requirements CumulativePreferredStockOfSubsidiaryWithoutMandatoryRedemptionRequirements	11529000	usd
CY2021Q4	pnm	Cumulative Preferred Stock Of Subsidiary Without Mandatory Redemption Requirements CumulativePreferredStockOfSubsidiaryWithoutMandatoryRedemptionRequirements	11529000	usd
CY2022Q4	us-gaap	Common Stock No Par Value CommonStockNoParValue	0
CY2021Q4	us-gaap	Common Stock No Par Value CommonStockNoParValue	0
CY2021Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	120000000	shares
CY2022Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	120000000	shares
CY2021Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	85834874	shares
CY2022Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	85834874	shares
CY2022Q4	us-gaap	Common Stock Value CommonStockValue	1429102000	usd
CY2021Q4	us-gaap	Common Stock Value CommonStockValue	1429257000	usd
CY2022Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-66048000	usd
CY2021Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-71936000	usd
CY2022Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	828878000	usd
CY2021Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	810203000	usd
CY2022Q4	us-gaap	Stockholders Equity StockholdersEquity	2191932000	usd
CY2021Q4	us-gaap	Stockholders Equity StockholdersEquity	2167524000	usd
CY2022Q4	us-gaap	Minority Interest MinorityInterest	52994000	usd
CY2021Q4	us-gaap	Minority Interest MinorityInterest	55405000	usd
CY2022Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	2244926000	usd
CY2021Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	2222929000	usd
CY2022Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	9257377000	usd
CY2021Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	8666885000	usd
CY2019Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	1741750000	usd
CY2020	us-gaap	Profit Loss ProfitLoss	187316000	usd
CY2020	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	20194000	usd
CY2020	us-gaap	Dividends Preferred Stock DividendsPreferredStock	528000	usd
CY2020	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	101591000	usd
CY2020	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	24000	usd
CY2020	us-gaap	Stock Repurchased And Retired During Period Value StockRepurchasedAndRetiredDuringPeriodValue	11984000	usd
CY2020	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	283208000	usd
CY2020	us-gaap	Share Based Compensation ShareBasedCompensation	8141000	usd
CY2020	us-gaap	Minority Interest Decrease From Distributions To Noncontrolling Interest Holders MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders	18056000	usd
CY2020Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	2108474000	usd
CY2021	us-gaap	Profit Loss ProfitLoss	211847000	usd
CY2021	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	7247000	usd
CY2021	us-gaap	Dividends Preferred Stock DividendsPreferredStock	528000	usd
CY2021	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	84333000	usd
CY2021	us-gaap	Stock Repurchased And Retired During Period Value StockRepurchasedAndRetiredDuringPeriodValue	10130000	usd
CY2021	us-gaap	Share Based Compensation ShareBasedCompensation	9446000	usd
CY2021	us-gaap	Minority Interest Decrease From Distributions To Noncontrolling Interest Holders MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders	19094000	usd
CY2021Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	2222929000	usd
CY2022	us-gaap	Profit Loss ProfitLoss	185180000	usd
CY2022	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	5888000	usd
CY2022	us-gaap	Dividends Preferred Stock DividendsPreferredStock	528000	usd
CY2022	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	150855000	usd
CY2022	us-gaap	Stock Repurchased And Retired During Period Value StockRepurchasedAndRetiredDuringPeriodValue	7980000	usd
CY2022	us-gaap	Share Based Compensation ShareBasedCompensation	7825000	usd
CY2022	us-gaap	Minority Interest Decrease From Distributions To Noncontrolling Interest Holders MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders	17533000	usd
CY2022Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	2244926000	usd
CY2022Q4	pnm	Collaborative Arrangement Owner Obligations Default Amount CollaborativeArrangementOwnerObligationsDefaultAmount	0	usd
CY2022Q4	us-gaap	Inventory Net InventoryNet	66733000	usd
CY2021Q4	us-gaap	Inventory Net InventoryNet	65061000	usd
CY2022	us-gaap	Other Cost And Expense Operating OtherCostAndExpenseOperating	563001000	usd
CY2022	us-gaap	Cost Of Goods And Services Sold Depreciation And Amortization CostOfGoodsAndServicesSoldDepreciationAndAmortization	304853000	usd
CY2022	us-gaap	Operating Income Loss OperatingIncomeLoss	393760000	usd
CY2022	us-gaap	Investment Income Interest InvestmentIncomeInterest	16095000	usd
CY2022	pnm	Other Income Deductions Excluding Interest OtherIncomeDeductionsExcludingInterest	-70637000	usd
CY2022	us-gaap	Interest Expense InterestExpense	127908000	usd
CY2022	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	211310000	usd
CY2022	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	26130000	usd
CY2022	us-gaap	Profit Loss ProfitLoss	185180000	usd
CY2022	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	15122000	usd
CY2022	us-gaap	Dividends Preferred Stock DividendsPreferredStock	528000	usd
CY2022	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	169530000	usd
CY2022Q4	us-gaap	Assets Assets	9257377000	usd
CY2022Q4	us-gaap	Goodwill Goodwill	278297000	usd
CY2021	us-gaap	Other Cost And Expense Operating OtherCostAndExpenseOperating	542760000	usd
CY2021	us-gaap	Cost Of Goods And Services Sold Depreciation And Amortization CostOfGoodsAndServicesSoldDepreciationAndAmortization	284107000	usd
CY2021	us-gaap	Operating Income Loss OperatingIncomeLoss	308153000	usd
CY2021	us-gaap	Investment Income Interest InvestmentIncomeInterest	14662000	usd
CY2021	pnm	Other Income Deductions Excluding Interest OtherIncomeDeductionsExcludingInterest	18491000	usd
CY2021	us-gaap	Interest Expense InterestExpense	96877000	usd
CY2021	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	244429000	usd
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	32582000	usd
CY2021	us-gaap	Profit Loss ProfitLoss	211847000	usd
CY2021	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	15490000	usd
CY2021	us-gaap	Dividends Preferred Stock DividendsPreferredStock	528000	usd
CY2021	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	195829000	usd
CY2021Q4	us-gaap	Assets Assets	8666885000	usd
CY2021Q4	us-gaap	Goodwill Goodwill	278297000	usd
CY2020	us-gaap	Other Cost And Expense Operating OtherCostAndExpenseOperating	514878000	usd
CY2020	us-gaap	Cost Of Goods And Services Sold Depreciation And Amortization CostOfGoodsAndServicesSoldDepreciationAndAmortization	275612000	usd
CY2020	us-gaap	Operating Income Loss OperatingIncomeLoss	285281000	usd
CY2020	us-gaap	Investment Income Interest InvestmentIncomeInterest	14223000	usd
CY2020	pnm	Other Income Deductions Excluding Interest OtherIncomeDeductionsExcludingInterest	22840000	usd
CY2020	us-gaap	Interest Expense InterestExpense	114392000	usd
CY2020	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	207952000	usd
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	20636000	usd
CY2020	us-gaap	Profit Loss ProfitLoss	187316000	usd
CY2020	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	14013000	usd
CY2020	us-gaap	Dividends Preferred Stock DividendsPreferredStock	528000	usd
CY2020	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	172775000	usd
CY2020Q4	us-gaap	Assets Assets	7939854000	usd
CY2020Q4	us-gaap	Goodwill Goodwill	278297000	usd
CY2022	us-gaap	Gross Profit GrossProfit	740455000	usd
CY2022	us-gaap	Utilities Operating Expense Operations UtilitiesOperatingExpenseOperations	94684000	usd
CY2022	us-gaap	Utilities Operating Expense Depreciation And Amortization UtilitiesOperatingExpenseDepreciationAndAmortization	279128000	usd
CY2022	pnm	Utility Margin UtilityMargin	1261614000	usd
CY2021	us-gaap	Gross Profit GrossProfit	648949000	usd
CY2021	us-gaap	Utilities Operating Expense Operations UtilitiesOperatingExpenseOperations	81335000	usd
CY2021	us-gaap	Utilities Operating Expense Depreciation And Amortization UtilitiesOperatingExpenseDepreciationAndAmortization	260805000	usd
CY2021	pnm	Utility Margin UtilityMargin	1135020000	usd
CY2020	us-gaap	Gross Profit GrossProfit	606727000	usd
CY2020	us-gaap	Utilities Operating Expense Operations UtilitiesOperatingExpenseOperations	77943000	usd
CY2020	us-gaap	Utilities Operating Expense Depreciation And Amortization UtilitiesOperatingExpenseDepreciationAndAmortization	253124000	usd
CY2020	pnm	Utility Margin UtilityMargin	1075771000	usd
CY2022	us-gaap	Allowance For Doubtful Accounts Receivable Period Increase Decrease AllowanceForDoubtfulAccountsReceivablePeriodIncreaseDecrease	-2300000	usd
CY2021	us-gaap	Allowance For Doubtful Accounts Receivable Period Increase Decrease AllowanceForDoubtfulAccountsReceivablePeriodIncreaseDecrease	-1100000	usd
CY2022	pnm	Other Receivables Allowance For Credit Loss Period Increase Decrease OtherReceivablesAllowanceForCreditLossPeriodIncreaseDecrease	0	usd
CY2021	pnm	Other Receivables Allowance For Credit Loss Period Increase Decrease OtherReceivablesAllowanceForCreditLossPeriodIncreaseDecrease	1000000	usd
CY2019Q1	us-gaap	Capitalized Contract Cost Amortization Period CapitalizedContractCostAmortizationPeriod	P5Y
CY2022	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	2250217000	usd
CY2022	us-gaap	Revenue Not From Contract With Customer RevenueNotFromContractWithCustomer	-19485000	usd
CY2022	us-gaap	Revenue Not From Contract With Customer Other RevenueNotFromContractWithCustomerOther	18823000	usd
CY2022	us-gaap	Revenues Revenues	2249555000	usd
CY2021	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	1744681000	usd
CY2021	us-gaap	Revenue Not From Contract With Customer RevenueNotFromContractWithCustomer	-3764000	usd
CY2021	us-gaap	Revenue Not From Contract With Customer Other RevenueNotFromContractWithCustomerOther	38956000	usd
CY2021	us-gaap	Revenues Revenues	1779873000	usd
CY2020	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	1512221000	usd
CY2020	us-gaap	Revenue Not From Contract With Customer RevenueNotFromContractWithCustomer	-11994000	usd
CY2020	us-gaap	Revenue Not From Contract With Customer Other RevenueNotFromContractWithCustomerOther	22785000	usd
CY2020	us-gaap	Revenues Revenues	1523012000	usd
CY2022Q4	us-gaap	Commodity Contract Asset Current CommodityContractAssetCurrent	11900000	usd
CY2021Q4	us-gaap	Commodity Contract Asset Current CommodityContractAssetCurrent	600000	usd
CY2022	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	169530000	usd
CY2021	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	195829000	usd
CY2020	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	172775000	usd
CY2022	us-gaap	Weighted Average Number Of Shares Issued Basic WeightedAverageNumberOfSharesIssuedBasic	85835000	shares
CY2021	us-gaap	Weighted Average Number Of Shares Issued Basic WeightedAverageNumberOfSharesIssuedBasic	85835000	shares
CY2020	us-gaap	Weighted Average Number Of Shares Issued Basic WeightedAverageNumberOfSharesIssuedBasic	79941000	shares
CY2022	us-gaap	Weighted Average Number Of Shares Restricted Stock WeightedAverageNumberOfSharesRestrictedStock	287000	shares
CY2021	us-gaap	Weighted Average Number Of Shares Restricted Stock WeightedAverageNumberOfSharesRestrictedStock	235000	shares
CY2020	us-gaap	Weighted Average Number Of Shares Restricted Stock WeightedAverageNumberOfSharesRestrictedStock	216000	shares
CY2022	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	86122000	shares
CY2021	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	86070000	shares
CY2020	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	80157000	shares
CY2022	us-gaap	Incremental Common Shares Attributable To Equity Forward Agreements IncrementalCommonSharesAttributableToEquityForwardAgreements	0	shares
CY2021	us-gaap	Incremental Common Shares Attributable To Equity Forward Agreements IncrementalCommonSharesAttributableToEquityForwardAgreements	0	shares
CY2020	us-gaap	Incremental Common Shares Attributable To Equity Forward Agreements IncrementalCommonSharesAttributableToEquityForwardAgreements	106000	shares
CY2022	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	47000	shares
CY2021	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	41000	shares
CY2020	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	40000	shares
CY2022	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	86169000	shares
CY2021	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	86111000	shares
CY2020	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	80303000	shares
CY2022	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.97
CY2021	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.28
CY2020	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.16
CY2022	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.97
CY2021	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.27
CY2020	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.15
CY2022	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	1.41
CY2021	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	1.33
CY2020	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	1.25
CY2022	us-gaap	Dividends Dividends	255800000	usd
CY2020Q4	pnm	Dividends Payable Per Share Maximum Distribution DividendsPayablePerShareMaximumDistribution	0.3675
CY2022Q4	us-gaap	Cash Flow Hedge Derivative Instrument Assets At Fair Value CashFlowHedgeDerivativeInstrumentAssetsAtFairValue	11100000	usd
CY2022Q4	us-gaap	Short Term Borrowings ShortTermBorrowings	232000000	usd
CY2021Q4	us-gaap	Short Term Borrowings ShortTermBorrowings	62700000	usd
CY2022Q4	us-gaap	Letters Of Credit Outstanding Amount LettersOfCreditOutstandingAmount	3400000	usd
CY2022Q4	us-gaap	Debt Instrument Carrying Amount DebtInstrumentCarryingAmount	4077543000	usd
CY2022Q4	us-gaap	Unamortized Loan Commitment And Origination Fees And Unamortized Discounts Or Premiums UnamortizedLoanCommitmentAndOriginationFeesAndUnamortizedDiscountsOrPremiums	156000	usd
CY2021Q4	us-gaap	Debt Instrument Carrying Amount DebtInstrumentCarryingAmount	3699043000	usd
CY2021Q4	us-gaap	Unamortized Loan Commitment And Origination Fees And Unamortized Discounts Or Premiums UnamortizedLoanCommitmentAndOriginationFeesAndUnamortizedDiscountsOrPremiums	124000	usd
CY2022Q4	pnm	Longtermdebt Currentmaturities Gross LongtermdebtCurrentmaturitiesGross	185000000	usd
CY2022Q4	pnm	Unamortized Loan Commitmentand Origination Feesand Unamortized Discountsor Premiums Current Portion UnamortizedLoanCommitmentandOriginationFeesandUnamortizedDiscountsorPremiumsCurrentPortion	207000	usd
CY2021Q4	pnm	Longtermdebt Currentmaturities Gross LongtermdebtCurrentmaturitiesGross	179500000	usd
CY2021Q4	pnm	Unamortized Loan Commitmentand Origination Feesand Unamortized Discountsor Premiums Current Portion UnamortizedLoanCommitmentandOriginationFeesandUnamortizedDiscountsorPremiumsCurrentPortion	161000	usd
CY2022Q4	pnm	Longtermdebt Excludingcurrentmaturities Gross LongtermdebtExcludingcurrentmaturitiesGross	3892543000	usd
CY2022Q4	pnm	Unamortized Loan Commitmentand Origination Feesand Unamortized Discountsor Premiums Excluding Current Portion UnamortizedLoanCommitmentandOriginationFeesandUnamortizedDiscountsorPremiumsExcludingCurrentPortion	-51000	usd
CY2021Q4	pnm	Longtermdebt Excludingcurrentmaturities Gross LongtermdebtExcludingcurrentmaturitiesGross	3519543000	usd
CY2021Q4	pnm	Unamortized Loan Commitmentand Origination Feesand Unamortized Discountsor Premiums Excluding Current Portion UnamortizedLoanCommitmentandOriginationFeesandUnamortizedDiscountsorPremiumsExcludingCurrentPortion	-37000	usd
CY2022Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Next Twelve Months LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths	185000000	usd
CY2022Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Two LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo	503000000	usd
CY2022Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Three LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree	1354000000	usd
CY2022Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Four LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour	160345000	usd
CY2022Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive	60000000	usd
CY2022Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal After Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive	1815198000	usd
CY2022Q4	us-gaap	Debt Instrument Carrying Amount DebtInstrumentCarryingAmount	4077543000	usd
CY2022Q4	pnm	Unamortized Cost Of Prepaid Right Of Way Agreements UnamortizedCostOfPrepaidRightOfWayAgreements	54600000	usd
CY2021Q4	pnm	Unamortized Cost Of Prepaid Right Of Way Agreements UnamortizedCostOfPrepaidRightOfWayAgreements	53400000	usd
CY2022	pnm	Amortization Of Prepaid Right Of Way Agreements AmortizationOfPrepaidRightOfWayAgreements	3800000	usd
CY2021	pnm	Amortization Of Prepaid Right Of Way Agreements AmortizationOfPrepaidRightOfWayAgreements	3700000	usd
CY2020	pnm	Amortization Of Prepaid Right Of Way Agreements AmortizationOfPrepaidRightOfWayAgreements	4400000	usd
CY2022Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	55982000	usd
CY2021Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	79511000	usd
CY2022Q4	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	18781000	usd
CY2021Q4	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	27218000	usd
CY2022Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	41336000	usd
CY2021Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	55993000	usd
CY2022Q4	pnm	Finance Lease Right Of Use Asset Gross FinanceLeaseRightOfUseAssetGross	39738000	usd
CY2021Q4	pnm	Finance Lease Right Of Use Asset Gross FinanceLeaseRightOfUseAssetGross	31695000	usd
CY2022Q4	pnm	Finance Lease Right Of Use Asset Accumulated Depreciation FinanceLeaseRightOfUseAssetAccumulatedDepreciation	16189000	usd
CY2021Q4	pnm	Finance Lease Right Of Use Asset Accumulated Depreciation FinanceLeaseRightOfUseAssetAccumulatedDepreciation	9660000	usd
CY2022Q4	us-gaap	Finance Lease Right Of Use Asset FinanceLeaseRightOfUseAsset	23549000	usd
CY2021Q4	us-gaap	Finance Lease Right Of Use Asset FinanceLeaseRightOfUseAsset	22035000	usd
CY2022Q4	pnm	Finance Lease Liability Current Other FinanceLeaseLiabilityCurrentOther	7363000	usd
CY2021Q4	pnm	Finance Lease Liability Current Other FinanceLeaseLiabilityCurrentOther	5813000	usd
CY2022Q4	pnm	Finance Lease Liability Deferred Credits Other FinanceLeaseLiabilityDeferredCreditsOther	16123000	usd
CY2021Q4	pnm	Finance Lease Liability Deferred Credits Other FinanceLeaseLiabilityDeferredCreditsOther	16075000	usd
CY2022Q4	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P6Y5M23D
CY2021Q4	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P5Y5M8D
CY2022Q4	us-gaap	Finance Lease Weighted Average Remaining Lease Term1 FinanceLeaseWeightedAverageRemainingLeaseTerm1	P3Y8M4D
CY2021Q4	us-gaap	Finance Lease Weighted Average Remaining Lease Term1 FinanceLeaseWeightedAverageRemainingLeaseTerm1	P4Y2M12D
CY2022Q4	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.0400
CY2021Q4	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.0399
CY2022Q4	us-gaap	Finance Lease Weighted Average Discount Rate Percent FinanceLeaseWeightedAverageDiscountRatePercent	0.0344
CY2021Q4	us-gaap	Finance Lease Weighted Average Discount Rate Percent FinanceLeaseWeightedAverageDiscountRatePercent	0.0265
CY2022	us-gaap	Operating Lease Cost OperatingLeaseCost	28835000	usd
CY2022	pnm	Operating Lease Capitalized Costs OperatingLeaseCapitalizedCosts	2417000	usd
CY2022	us-gaap	Operating Lease Expense OperatingLeaseExpense	26418000	usd
CY2022	us-gaap	Finance Lease Right Of Use Asset Amortization FinanceLeaseRightOfUseAssetAmortization	6529000	usd
CY2022	us-gaap	Finance Lease Interest Expense FinanceLeaseInterestExpense	659000	usd
CY2022	pnm	Finance Lease Capitalized Costs FinanceLeaseCapitalizedCosts	5471000	usd
CY2022	pnm	Finance Lease Cost FinanceLeaseCost	1717000	usd
CY2022	us-gaap	Variable Lease Cost VariableLeaseCost	890000	usd
CY2022	us-gaap	Short Term Lease Cost ShortTermLeaseCost	3109000	usd
CY2022	us-gaap	Lease Cost LeaseCost	32134000	usd
CY2021	us-gaap	Operating Lease Cost OperatingLeaseCost	29270000	usd
CY2021	pnm	Operating Lease Capitalized Costs OperatingLeaseCapitalizedCosts	2951000	usd
CY2021	us-gaap	Operating Lease Expense OperatingLeaseExpense	26319000	usd
CY2021	us-gaap	Finance Lease Right Of Use Asset Amortization FinanceLeaseRightOfUseAssetAmortization	5277000	usd
CY2021	us-gaap	Finance Lease Interest Expense FinanceLeaseInterestExpense	574000	usd
CY2021	pnm	Finance Lease Capitalized Costs FinanceLeaseCapitalizedCosts	4404000	usd
CY2021	pnm	Finance Lease Cost FinanceLeaseCost	1447000	usd
CY2021	us-gaap	Variable Lease Cost VariableLeaseCost	380000	usd
CY2021	us-gaap	Short Term Lease Cost ShortTermLeaseCost	3035000	usd
CY2021	us-gaap	Lease Cost LeaseCost	31181000	usd
CY2022	us-gaap	Operating Lease Payments OperatingLeasePayments	25984000	usd
CY2021	us-gaap	Operating Lease Payments OperatingLeasePayments	26129000	usd
CY2022	us-gaap	Finance Lease Interest Payment On Liability FinanceLeaseInterestPaymentOnLiability	141000	usd
CY2021	us-gaap	Finance Lease Interest Payment On Liability FinanceLeaseInterestPaymentOnLiability	128000	usd
CY2022	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	1711000	usd
CY2021	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	1296000	usd
CY2022	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	3103000	usd
CY2021	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	317000	usd
CY2022	us-gaap	Right Of Use Asset Obtained In Exchange For Finance Lease Liability RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability	8266000	usd
CY2021	us-gaap	Right Of Use Asset Obtained In Exchange For Finance Lease Liability RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability	6958000	usd
CY2022Q4	us-gaap	Finance Lease Liability Payments Due Next Twelve Months FinanceLeaseLiabilityPaymentsDueNextTwelveMonths	8029000	usd
CY2022Q4	us-gaap	Lessee Operating Lease Liability Payments Due Next Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths	19037000	usd
CY2022Q4	us-gaap	Finance Lease Liability Payments Due Year Two FinanceLeaseLiabilityPaymentsDueYearTwo	6606000	usd
CY2022Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	9334000	usd
CY2022Q4	us-gaap	Finance Lease Liability Payments Due Year Three FinanceLeaseLiabilityPaymentsDueYearThree	4734000	usd
CY2022Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	7595000	usd
CY2022Q4	us-gaap	Finance Lease Liability Payments Due Year Four FinanceLeaseLiabilityPaymentsDueYearFour	2988000	usd
CY2022Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	7490000	usd
CY2022Q4	us-gaap	Finance Lease Liability Payments Due Year Five FinanceLeaseLiabilityPaymentsDueYearFive	1539000	usd
CY2022Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Five LesseeOperatingLeaseLiabilityPaymentsDueYearFive	7018000	usd
CY2022Q4	us-gaap	Finance Lease Liability Payments Due After Year Five FinanceLeaseLiabilityPaymentsDueAfterYearFive	1162000	usd
CY2022Q4	us-gaap	Lessee Operating Lease Liability Payments Due After Year Five LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive	17366000	usd
CY2022Q4	us-gaap	Finance Lease Liability Payments Due FinanceLeaseLiabilityPaymentsDue	25058000	usd
CY2022Q4	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	67840000	usd
CY2022Q4	us-gaap	Finance Lease Liability Undiscounted Excess Amount FinanceLeaseLiabilityUndiscountedExcessAmount	1572000	usd
CY2022Q4	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	7723000	usd
CY2022Q4	us-gaap	Finance Lease Liability FinanceLeaseLiability	23486000	usd
CY2022Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	60117000	usd
CY2022Q4	pnm	Lessee Operating Lease Unguaranteed Residual Value LesseeOperatingLeaseUnguaranteedResidualValue	24200000	usd
CY2022Q4	pnm	Contract With Customer Liability Net ContractWithCustomerLiabilityNet	15300000	usd
CY2022Q4	pnm	Contract With Customer Cash Collateral ContractWithCustomerCashCollateral	0	usd
CY2022Q4	pnm	Contract With Customer Liability Net Exposure ContractWithCustomerLiabilityNetExposure	13100000	usd
CY2022	us-gaap	Equity Securities Fv Ni Realized Gain Loss EquitySecuritiesFvNiRealizedGainLoss	-6940000	usd
CY2021	us-gaap	Equity Securities Fv Ni Realized Gain Loss EquitySecuritiesFvNiRealizedGainLoss	8738000	usd
CY2020	us-gaap	Equity Securities Fv Ni Realized Gain Loss EquitySecuritiesFvNiRealizedGainLoss	5861000	usd
CY2022	us-gaap	Equity Securities Fv Ni Unrealized Gain Loss EquitySecuritiesFvNiUnrealizedGainLoss	-38025000	usd
CY2021	us-gaap	Equity Securities Fv Ni Unrealized Gain Loss EquitySecuritiesFvNiUnrealizedGainLoss	-442000	usd
CY2020	us-gaap	Equity Securities Fv Ni Unrealized Gain Loss EquitySecuritiesFvNiUnrealizedGainLoss	17707000	usd
CY2022	us-gaap	Equity Securities Fv Ni Gain Loss EquitySecuritiesFvNiGainLoss	-44965000	usd
CY2021	us-gaap	Equity Securities Fv Ni Gain Loss EquitySecuritiesFvNiGainLoss	8296000	usd
CY2020	us-gaap	Equity Securities Fv Ni Gain Loss EquitySecuritiesFvNiGainLoss	23568000	usd
CY2022	us-gaap	Debt Securities Realized Gain Loss DebtSecuritiesRealizedGainLoss	-33392000	usd
CY2021	us-gaap	Debt Securities Realized Gain Loss DebtSecuritiesRealizedGainLoss	8554000	usd
CY2020	us-gaap	Debt Securities Realized Gain Loss DebtSecuritiesRealizedGainLoss	-1969000	usd
CY2022	us-gaap	Debt And Equity Securities Gain Loss DebtAndEquitySecuritiesGainLoss	-78357000	usd
CY2021	us-gaap	Debt And Equity Securities Gain Loss DebtAndEquitySecuritiesGainLoss	16850000	usd
CY2020	us-gaap	Debt And Equity Securities Gain Loss DebtAndEquitySecuritiesGainLoss	21599000	usd
CY2022	pnm	Increase Decrease In Other Than Temporary Losses Investments Portion Recognizedin Earnings Net Availableforsale Securities IncreaseDecreaseInOtherThanTemporaryLossesInvestmentsPortionRecognizedinEarningsNetAvailableforsaleSecurities	-25800000	usd
CY2021	pnm	Increase Decrease In Other Than Temporary Losses Investments Portion Recognizedin Earnings Net Availableforsale Securities IncreaseDecreaseInOtherThanTemporaryLossesInvestmentsPortionRecognizedinEarningsNetAvailableforsaleSecurities	700000	usd
CY2020	pnm	Increase Decrease In Other Than Temporary Losses Investments Portion Recognizedin Earnings Net Availableforsale Securities IncreaseDecreaseInOtherThanTemporaryLossesInvestmentsPortionRecognizedinEarningsNetAvailableforsaleSecurities	-3200000	usd
CY2022	us-gaap	Defined Benefit Plan Assumptions Used Calculating Net Periodic Benefit Cost Expected Long Term Return On Assets DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostExpectedLongTermReturnOnAssets	0.040
CY2022	pnm	Defined Benefit Plans Gains And Losses That Lie Outside Corridor Amortized In Years DefinedBenefitPlansGainsAndLossesThatLieOutsideCorridorAmortizedInYears	P5Y
CY2022	us-gaap	Defined Contribution Plan Maximum Annual Contributions Per Employee Percent DefinedContributionPlanMaximumAnnualContributionsPerEmployeePercent	0.75
CY2022	us-gaap	Defined Contribution Plan Employer Matching Contribution Percent DefinedContributionPlanEmployerMatchingContributionPercent	0.06
CY2022	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	7900000	usd
CY2021	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	9400000	usd
CY2020	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	8100000	usd
CY2022Q4	pnm	Asset Retirement Obligation Liabilities Relatedto Nuclear Decommissioning AssetRetirementObligationLiabilitiesRelatedtoNuclearDecommissioning	0.68
CY2019Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	181962000	usd
CY2020	us-gaap	Asset Retirement Obligation Liabilities Incurred AssetRetirementObligationLiabilitiesIncurred	0	usd
CY2020	us-gaap	Asset Retirement Obligation Liabilities Settled AssetRetirementObligationLiabilitiesSettled	1444000	usd
CY2020	us-gaap	Asset Retirement Obligation Accretion Expense AssetRetirementObligationAccretionExpense	11310000	usd
CY2020	us-gaap	Asset Retirement Obligation Revision Of Estimate AssetRetirementObligationRevisionOfEstimate	-8407000	usd
CY2020Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	183421000	usd
CY2021	us-gaap	Asset Retirement Obligation Liabilities Incurred AssetRetirementObligationLiabilitiesIncurred	1781000	usd
CY2021	us-gaap	Asset Retirement Obligation Liabilities Settled AssetRetirementObligationLiabilitiesSettled	142000	usd
CY2021	us-gaap	Asset Retirement Obligation Accretion Expense AssetRetirementObligationAccretionExpense	9308000	usd
CY2021	us-gaap	Asset Retirement Obligation Revision Of Estimate AssetRetirementObligationRevisionOfEstimate	39778000	usd
CY2021Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	234146000	usd
CY2022	us-gaap	Asset Retirement Obligation Liabilities Incurred AssetRetirementObligationLiabilitiesIncurred	0	usd
CY2022	us-gaap	Asset Retirement Obligation Liabilities Settled AssetRetirementObligationLiabilitiesSettled	0	usd
CY2022	us-gaap	Asset Retirement Obligation Accretion Expense AssetRetirementObligationAccretionExpense	10767000	usd
CY2022	us-gaap	Asset Retirement Obligation Revision Of Estimate AssetRetirementObligationRevisionOfEstimate	-21536000	usd
CY2022Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	223377000	usd
	pnm	Number Of Monitoring Wells Containing Free Phase Hydrocarbon Products NumberOfMonitoringWellsContainingFreePhaseHydrocarbonProducts	1	monitoringwell
CY2019Q4	pnm	Number Of Field Work Reports NumberOfFieldWorkReports	2	numberofamimeter
CY2020Q3	pnm	Number Of Field Work Reports NumberOfFieldWorkReports	2	numberofamimeter
CY2022Q3	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	-6430000	usd
CY2022Q3	pnm	Public Utilities Increase Decrease Property Plant And Equipment In Service Net PublicUtilitiesIncreaseDecreasePropertyPlantAndEquipmentInServiceNet	-382798000	usd
CY2022Q3	pnm	Increase Decrease In Regulatory Assets Eta IncreaseDecreaseInRegulatoryAssetsETA	289381000	usd
CY2022Q3	pnm	Increase Decrease In Regulatory Assets Non Eta IncreaseDecreaseInRegulatoryAssetsNonETA	22593000	usd
CY2022Q3	us-gaap	Increase Decrease In Regulatory Liabilities IncreaseDecreaseInRegulatoryLiabilities	-77254000	usd
CY2022Q3	pnm	Increase Decrease In Assets And Liabilities Net IncreaseDecreaseInAssetsAndLiabilitiesNet	0	usd
CY2022Q4	pnm	Public Utilities Investments Undepreciated PublicUtilitiesInvestmentsUndepreciated	274900000	usd
CY2022Q4	pnm	Public Utilities Investments Plant Decommissioning PublicUtilitiesInvestmentsPlantDecommissioning	14500000	usd
CY2022Q4	pnm	Public Utilities Obsolete Inventory PublicUtilitiesObsoleteInventory	6400000	usd
CY2022Q4	pnm	Public Utilities Inventory Plant Decommissioning PublicUtilitiesInventoryPlantDecommissioning	16200000	usd
CY2021Q2	pnm	Public Utilities Regulatory Time Frame For Proposed Pp As And Battery Storage Agreements PublicUtilitiesRegulatoryTimeFrameForProposedPPAsAndBatteryStorageAgreements	P6M
CY2021	pnm	Number Of Replacement Resources NumberOfReplacementResources	4	replacementresource
	pnm	Number Of Purchase Power Agreements NumberOfPurchasePowerAgreements	3	power_purchase_agreement
CY2022Q2	pnm	Number Of Delegated Letter Orders NumberOfDelegatedLetterOrders	2	delegatedletterorder
CY2022Q2	pnm	Number Of Requests For Rehearing NumberOfRequestsForRehearing	2	numberofamimeter
CY2022Q2	pnm	Number Of Ferc Proceedings NumberOfFERCProceedings	2	proceeding
CY2022Q3	pnm	Number Of Rehearing Denial Notices NumberOfRehearingDenialNotices	2	denialnotice
CY2022Q3	pnm	Number Of Petitions Filed For Review NumberOfPetitionsFiledForReview	2	filedpetition
CY2022	us-gaap	Deferred Federal State And Local Tax Expense Benefit DeferredFederalStateAndLocalTaxExpenseBenefit	23600000	usd
CY2022	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	0	usd
CY2021	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	0	usd
CY2020	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	0	usd
CY2022	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	1597000	usd
CY2021	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	1835000	usd
CY2020	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	231000	usd
CY2022	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	18413000	usd
CY2021	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	20679000	usd
CY2020	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	17574000	usd
CY2022	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	7302000	usd
CY2021	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	11315000	usd
CY2020	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	3721000	usd
CY2022	us-gaap	Other Income Tax Expense Benefit Continuing Operations OtherIncomeTaxExpenseBenefitContinuingOperations	-1182000	usd
CY2021	us-gaap	Other Income Tax Expense Benefit Continuing Operations OtherIncomeTaxExpenseBenefitContinuingOperations	-1247000	usd
CY2020	us-gaap	Other Income Tax Expense Benefit Continuing Operations OtherIncomeTaxExpenseBenefitContinuingOperations	-890000	usd
CY2022	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	26130000	usd
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	32582000	usd
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	20636000	usd
CY2022	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	44375000	usd
CY2021	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	51330000	usd
CY2020	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	43670000	usd
CY2022	us-gaap	Income Tax Reconciliation Tax Credits Investment IncomeTaxReconciliationTaxCreditsInvestment	1182000	usd
CY2021	us-gaap	Income Tax Reconciliation Tax Credits Investment IncomeTaxReconciliationTaxCreditsInvestment	1247000	usd
CY2020	us-gaap	Income Tax Reconciliation Tax Credits Investment IncomeTaxReconciliationTaxCreditsInvestment	890000	usd
CY2022	pnm	Effective Income Tax Rate Reconciliation Deductible Expense Amortization Of Excess Deferred Income Tax EffectiveIncomeTaxRateReconciliationDeductibleExpenseAmortizationOfExcessDeferredIncomeTax	23599000	usd
CY2021	pnm	Effective Income Tax Rate Reconciliation Deductible Expense Amortization Of Excess Deferred Income Tax EffectiveIncomeTaxRateReconciliationDeductibleExpenseAmortizationOfExcessDeferredIncomeTax	24484000	usd
CY2020	pnm	Effective Income Tax Rate Reconciliation Deductible Expense Amortization Of Excess Deferred Income Tax EffectiveIncomeTaxRateReconciliationDeductibleExpenseAmortizationOfExcessDeferredIncomeTax	30723000	usd
CY2022	us-gaap	Income Tax Reconciliation Nondeductible Expense Depreciation And Amortization IncomeTaxReconciliationNondeductibleExpenseDepreciationAndAmortization	2795000	usd
CY2021	us-gaap	Income Tax Reconciliation Nondeductible Expense Depreciation And Amortization IncomeTaxReconciliationNondeductibleExpenseDepreciationAndAmortization	798000	usd
CY2020	us-gaap	Income Tax Reconciliation Nondeductible Expense Depreciation And Amortization IncomeTaxReconciliationNondeductibleExpenseDepreciationAndAmortization	1368000	usd
CY2022	us-gaap	Income Tax Reconciliation Minority Interest Income Expense IncomeTaxReconciliationMinorityInterestIncomeExpense	3176000	usd
CY2021	us-gaap	Income Tax Reconciliation Minority Interest Income Expense IncomeTaxReconciliationMinorityInterestIncomeExpense	3253000	usd
CY2020	us-gaap	Income Tax Reconciliation Minority Interest Income Expense IncomeTaxReconciliationMinorityInterestIncomeExpense	2943000	usd
CY2022	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	6826000	usd
CY2021	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	9660000	usd
CY2020	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	6961000	usd
CY2022	pnm	Effective Income Tax Rate Reconciliation Allowanceforequityfundsusedduringconstruction EffectiveIncomeTaxRateReconciliationAllowanceforequityfundsusedduringconstruction	-2898000	usd
CY2021	pnm	Effective Income Tax Rate Reconciliation Allowanceforequityfundsusedduringconstruction EffectiveIncomeTaxRateReconciliationAllowanceforequityfundsusedduringconstruction	-2776000	usd
CY2020	pnm	Effective Income Tax Rate Reconciliation Allowanceforequityfundsusedduringconstruction EffectiveIncomeTaxRateReconciliationAllowanceforequityfundsusedduringconstruction	-2363000	usd
CY2022	pnm	Effective Income Tax Rate Reconciliation Recoveryof Impairmentof Net Operating Loss Carryforward Amount EffectiveIncomeTaxRateReconciliationRecoveryofImpairmentofNetOperatingLossCarryforwardAmount	0	usd
CY2021	pnm	Effective Income Tax Rate Reconciliation Recoveryof Impairmentof Net Operating Loss Carryforward Amount EffectiveIncomeTaxRateReconciliationRecoveryofImpairmentofNetOperatingLossCarryforwardAmount	0	usd
CY2020	pnm	Effective Income Tax Rate Reconciliation Recoveryof Impairmentof Net Operating Loss Carryforward Amount EffectiveIncomeTaxRateReconciliationRecoveryofImpairmentofNetOperatingLossCarryforwardAmount	-1367000	usd
CY2022	us-gaap	Effective Income Tax Rate Reconciliation Share Based Compensation Excess Tax Benefit Amount EffectiveIncomeTaxRateReconciliationShareBasedCompensationExcessTaxBenefitAmount	91000	usd
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Share Based Compensation Excess Tax Benefit Amount EffectiveIncomeTaxRateReconciliationShareBasedCompensationExcessTaxBenefitAmount	-788000	usd
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Share Based Compensation Excess Tax Benefit Amount EffectiveIncomeTaxRateReconciliationShareBasedCompensationExcessTaxBenefitAmount	-392000	usd
CY2022	pnm	Effective Income Tax Rate Reconciliation Non Deductible Compensation Amount EffectiveIncomeTaxRateReconciliationNonDeductibleCompensationAmount	1125000	usd
CY2021	pnm	Effective Income Tax Rate Reconciliation Non Deductible Compensation Amount EffectiveIncomeTaxRateReconciliationNonDeductibleCompensationAmount	899000	usd
CY2020	pnm	Effective Income Tax Rate Reconciliation Non Deductible Compensation Amount EffectiveIncomeTaxRateReconciliationNonDeductibleCompensationAmount	2630000	usd
CY2022	pnm	Effective Income Tax Rate Reconciliation Transaction Costs EffectiveIncomeTaxRateReconciliationTransactionCosts	74000	usd
CY2021	pnm	Effective Income Tax Rate Reconciliation Transaction Costs EffectiveIncomeTaxRateReconciliationTransactionCosts	848000	usd
CY2020	pnm	Effective Income Tax Rate Reconciliation Transaction Costs EffectiveIncomeTaxRateReconciliationTransactionCosts	0	usd
CY2022	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	1699000	usd
CY2021	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	1595000	usd
CY2020	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	1951000	usd
CY2022	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	26130000	usd
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	32582000	usd
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	20636000	usd
CY2022	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.1237
CY2021	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.1333
CY2020	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.0992
CY2022Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	85382000	usd
CY2021Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	32441000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Regulatory Assets And Liabilities DeferredTaxAssetsRegulatoryAssetsAndLiabilities	98371000	usd
CY2021Q4	us-gaap	Deferred Tax Assets Regulatory Assets And Liabilities DeferredTaxAssetsRegulatoryAssetsAndLiabilities	120651000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards DeferredTaxAssetsTaxCreditCarryforwards	122557000	usd
CY2021Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards DeferredTaxAssetsTaxCreditCarryforwards	122436000	usd
CY2022Q4	pnm	Deferred Tax Assets Regulatory Disallowance DeferredTaxAssetsRegulatoryDisallowance	28037000	usd
CY2021Q4	pnm	Deferred Tax Assets Regulatory Disallowance DeferredTaxAssetsRegulatoryDisallowance	38835000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	33849000	usd
CY2021Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	34812000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	368196000	usd
CY2021Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	349175000	usd
CY2022Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	801022000	usd
CY2021Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	787295000	usd
CY2022Q4	pnm	Deferred Tax Liabilities Investment Tax Credit DeferredTaxLiabilitiesInvestmentTaxCredit	96227000	usd
CY2021Q4	pnm	Deferred Tax Liabilities Investment Tax Credit DeferredTaxLiabilitiesInvestmentTaxCredit	97409000	usd
CY2022Q4	us-gaap	Deferred Tax Liabilities Regulatory Assets And Liabilities DeferredTaxLiabilitiesRegulatoryAssetsAndLiabilities	77013000	usd
CY2021Q4	us-gaap	Deferred Tax Liabilities Regulatory Assets And Liabilities DeferredTaxLiabilitiesRegulatoryAssetsAndLiabilities	78211000	usd
CY2022Q4	pnm	Deferred Tax Liabilities Compensationand Benefits Pensions DeferredTaxLiabilitiesCompensationandBenefitsPensions	40651000	usd
CY2021Q4	pnm	Deferred Tax Liabilities Compensationand Benefits Pensions DeferredTaxLiabilitiesCompensationandBenefitsPensions	40828000	usd
CY2022Q4	us-gaap	Deferred Tax Liabilities Regulatory Assets DeferredTaxLiabilitiesRegulatoryAssets	24048000	usd
CY2021Q4	us-gaap	Deferred Tax Liabilities Regulatory Assets DeferredTaxLiabilitiesRegulatoryAssets	25643000	usd
CY2022Q4	pnm	Deferred Tax Liability Regulatory Asset Investment DeferredTaxLiabilityRegulatoryAssetInvestment	69828000	usd
CY2021Q4	pnm	Deferred Tax Liability Regulatory Asset Investment DeferredTaxLiabilityRegulatoryAssetInvestment	0	usd
CY2022Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	82238000	usd
CY2021Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	84639000	usd
CY2022Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	1191027000	usd
CY2021Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	1114025000	usd
CY2022Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	822831000	usd
CY2021Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	764850000	usd
CY2022	us-gaap	Increase Decrease In Deferred Income Taxes IncreaseDecreaseInDeferredIncomeTaxes	-57981000	usd
CY2022	pnm	Change In Tax Effects Of Income Tax Related Regulatory Assets And Liabilities ChangeInTaxEffectsOfIncomeTaxRelatedRegulatoryAssetsAndLiabilities	7546000	usd
CY2022	pnm	Amortization Of Excess Deferred Income Tax AmortizationOfExcessDeferredIncomeTax	23599000	usd
CY2022	pnm	Tax Effect Of Mark To Market Adjustments TaxEffectOfMarkToMarketAdjustments	-1359000	usd
CY2022	pnm	Tax Effect Of Excess Pension Liability TaxEffectOfExcessPensionLiability	-645000	usd
CY2022	us-gaap	Unrecognized Tax Benefits Period Increase Decrease UnrecognizedTaxBenefitsPeriodIncreaseDecrease	-1439000	usd
CY2022	pnm	Adjustmentforunrecognizedtaxbenefits Adjustmentforunrecognizedtaxbenefits	1439000	usd
CY2022	us-gaap	Deferred Other Tax Expense Benefit DeferredOtherTaxExpenseBenefit	-299000	usd
CY2022	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	24533000	usd
CY2022	us-gaap	Unrecognized Tax Benefits Interest On Income Taxes Expense UnrecognizedTaxBenefitsInterestOnIncomeTaxesExpense	0	usd
CY2021	us-gaap	Unrecognized Tax Benefits Interest On Income Taxes Expense UnrecognizedTaxBenefitsInterestOnIncomeTaxesExpense	0	usd
CY2020	us-gaap	Unrecognized Tax Benefits Interest On Income Taxes Expense UnrecognizedTaxBenefitsInterestOnIncomeTaxesExpense	0	usd
CY2022	pnm	State Tax Credit Carryforward Impairment StateTaxCreditCarryforwardImpairment	187000	usd
CY2022	pnm	Compensation Expense Impairment CompensationExpenseImpairment	199000	usd
CY2021	pnm	State Tax Credit Carryforward Impairment StateTaxCreditCarryforwardImpairment	1029000	usd
CY2021	pnm	Compensation Expense Impairment CompensationExpenseImpairment	119000	usd
CY2020	pnm	State Tax Credit Carryforward Impairment StateTaxCreditCarryforwardImpairment	-425000	usd
CY2020	pnm	Compensation Expense Impairment CompensationExpenseImpairment	96000	usd
CY2022Q4	pnm	Reservebalance Statetaxcreditcarryforward ReservebalanceStatetaxcreditcarryforward	1216000	usd
CY2022	pnm	Reverse Balance Compensation Expense ReverseBalanceCompensationExpense	725000	usd
CY2021Q4	pnm	Reservebalance Statetaxcreditcarryforward ReservebalanceStatetaxcreditcarryforward	1029000	usd
CY2021	pnm	Reverse Balance Compensation Expense ReverseBalanceCompensationExpense	526000	usd

Files In Submission

Name	View Source	Status
FilingSummary.xml	Edgar Link	unprocessable
pnm-20221231_def.xml	Edgar Link	unprocessable
0001108426-23-000006-index-headers.html	Edgar Link	pending
0001108426-23-000006-index.html	Edgar Link	pending
0001108426-23-000006.txt	Edgar Link	pending
0001108426-23-000006-xbrl.zip	Edgar Link	pending
Financial_Report.xlsx	Edgar Link	pending
MetaLinks.json	Edgar Link	pending
pnm-20221231.htm	Edgar Link	pending
pnm-20221231.xsd	Edgar Link	pending
pnmr12312022ex104.htm	Edgar Link	pending
pnmr12312022ex106.htm	Edgar Link	pending
pnmr12312022ex1065.htm	Edgar Link	pending
pnmr12312022ex1066.htm	Edgar Link	pending
pnmr12312022ex21.htm	Edgar Link	pending
pnmr12312022ex231.htm	Edgar Link	pending
pnmr12312022ex232.htm	Edgar Link	pending
pnmr12312022ex311.htm	Edgar Link	pending
pnmr12312022ex312.htm	Edgar Link	pending
pnmr12312022ex313.htm	Edgar Link	pending
pnmr12312022ex314.htm	Edgar Link	pending
pnmr12312022ex315.htm	Edgar Link	pending
pnmr12312022ex316.htm	Edgar Link	pending
pnmr12312022ex321.htm	Edgar Link	pending
pnmr12312022ex322.htm	Edgar Link	pending
pnmr12312022ex323.htm	Edgar Link	pending
R1.htm	Edgar Link	pending
R10.htm	Edgar Link	pending
R100.htm	Edgar Link	pending
R101.htm	Edgar Link	pending
R102.htm	Edgar Link	pending
R103.htm	Edgar Link	pending
R104.htm	Edgar Link	pending
R105.htm	Edgar Link	pending
R106.htm	Edgar Link	pending
R107.htm	Edgar Link	pending
R108.htm	Edgar Link	pending
R109.htm	Edgar Link	pending
R11.htm	Edgar Link	pending
R110.htm	Edgar Link	pending
R111.htm	Edgar Link	pending
R112.htm	Edgar Link	pending
R113.htm	Edgar Link	pending
pnm-20221231_lab.xml	Edgar Link	unprocessable
pnm-20221231_pre.xml	Edgar Link	unprocessable
pnm-20221231_htm.xml	Edgar Link	completed
R114.htm	Edgar Link	pending
R115.htm	Edgar Link	pending
R116.htm	Edgar Link	pending
R117.htm	Edgar Link	pending
R118.htm	Edgar Link	pending
R119.htm	Edgar Link	pending
R12.htm	Edgar Link	pending
R120.htm	Edgar Link	pending
R121.htm	Edgar Link	pending
R122.htm	Edgar Link	pending
R123.htm	Edgar Link	pending
R124.htm	Edgar Link	pending
R125.htm	Edgar Link	pending
R126.htm	Edgar Link	pending
R127.htm	Edgar Link	pending
R128.htm	Edgar Link	pending
R129.htm	Edgar Link	pending
R13.htm	Edgar Link	pending
R130.htm	Edgar Link	pending
R131.htm	Edgar Link	pending
R132.htm	Edgar Link	pending
R133.htm	Edgar Link	pending
R134.htm	Edgar Link	pending
R135.htm	Edgar Link	pending
R136.htm	Edgar Link	pending
R137.htm	Edgar Link	pending
R138.htm	Edgar Link	pending
R139.htm	Edgar Link	pending
R14.htm	Edgar Link	pending
R140.htm	Edgar Link	pending
R141.htm	Edgar Link	pending
R142.htm	Edgar Link	pending
R143.htm	Edgar Link	pending
R144.htm	Edgar Link	pending
R145.htm	Edgar Link	pending
R146.htm	Edgar Link	pending
R147.htm	Edgar Link	pending
R148.htm	Edgar Link	pending
R149.htm	Edgar Link	pending
R15.htm	Edgar Link	pending
R150.htm	Edgar Link	pending
R16.htm	Edgar Link	pending
R17.htm	Edgar Link	pending
R18.htm	Edgar Link	pending
R19.htm	Edgar Link	pending
R2.htm	Edgar Link	pending
R20.htm	Edgar Link	pending
R21.htm	Edgar Link	pending
R22.htm	Edgar Link	pending
R23.htm	Edgar Link	pending
R24.htm	Edgar Link	pending
R25.htm	Edgar Link	pending
R26.htm	Edgar Link	pending
R27.htm	Edgar Link	pending
R28.htm	Edgar Link	pending
R29.htm	Edgar Link	pending
R3.htm	Edgar Link	pending
R30.htm	Edgar Link	pending
R31.htm	Edgar Link	pending
R32.htm	Edgar Link	pending
R33.htm	Edgar Link	pending
R34.htm	Edgar Link	pending
R35.htm	Edgar Link	pending
R36.htm	Edgar Link	pending
R37.htm	Edgar Link	pending
R38.htm	Edgar Link	pending
R39.htm	Edgar Link	pending
R4.htm	Edgar Link	pending
R40.htm	Edgar Link	pending
R41.htm	Edgar Link	pending
R42.htm	Edgar Link	pending
R43.htm	Edgar Link	pending
R44.htm	Edgar Link	pending
R45.htm	Edgar Link	pending
R46.htm	Edgar Link	pending
R47.htm	Edgar Link	pending
R48.htm	Edgar Link	pending
R49.htm	Edgar Link	pending
R5.htm	Edgar Link	pending
R50.htm	Edgar Link	pending
R51.htm	Edgar Link	pending
R52.htm	Edgar Link	pending
R53.htm	Edgar Link	pending
R54.htm	Edgar Link	pending
R55.htm	Edgar Link	pending
R56.htm	Edgar Link	pending
R57.htm	Edgar Link	pending
R58.htm	Edgar Link	pending
R59.htm	Edgar Link	pending
R6.htm	Edgar Link	pending
R60.htm	Edgar Link	pending
R61.htm	Edgar Link	pending
R62.htm	Edgar Link	pending
R63.htm	Edgar Link	pending
R64.htm	Edgar Link	pending
R65.htm	Edgar Link	pending
R66.htm	Edgar Link	pending
R67.htm	Edgar Link	pending
R68.htm	Edgar Link	pending
R69.htm	Edgar Link	pending
R7.htm	Edgar Link	pending
R70.htm	Edgar Link	pending
R71.htm	Edgar Link	pending
R72.htm	Edgar Link	pending
R73.htm	Edgar Link	pending
R74.htm	Edgar Link	pending
R75.htm	Edgar Link	pending
R76.htm	Edgar Link	pending
R77.htm	Edgar Link	pending
R78.htm	Edgar Link	pending
R79.htm	Edgar Link	pending
R8.htm	Edgar Link	pending
R80.htm	Edgar Link	pending
R81.htm	Edgar Link	pending
R82.htm	Edgar Link	pending
R83.htm	Edgar Link	pending
R84.htm	Edgar Link	pending
R85.htm	Edgar Link	pending
R86.htm	Edgar Link	pending
R87.htm	Edgar Link	pending
R88.htm	Edgar Link	pending
R89.htm	Edgar Link	pending
R9.htm	Edgar Link	pending
R90.htm	Edgar Link	pending
R91.htm	Edgar Link	pending
R92.htm	Edgar Link	pending
R93.htm	Edgar Link	pending
R94.htm	Edgar Link	pending
R95.htm	Edgar Link	pending
R96.htm	Edgar Link	pending
R97.htm	Edgar Link	pending
R98.htm	Edgar Link	pending
R99.htm	Edgar Link	pending
report.css	Edgar Link	pending
Show.js	Edgar Link	pending
pnm-20221231_cal.xml	Edgar Link	unprocessable

Create your account

Find Stocks Worth Researching

Deeply Understand Businesses

Value Businesses Intelligently

$TXNM
TXNM ENERGY INC Stock $txnm

2023 Q1 Form 10-K Financial Statement

#000110842623000006 Filed on February 28, 2023

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$TXNM TXNM ENERGY INC Stock $txnm

2023 Q1 Form 10-K Financial Statement

#000110842623000006 Filed on February 28, 2023

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$TXNM
TXNM ENERGY INC Stock $txnm