$IDA
IDACORP INC Stock $ida

$ida Overview Financials Valuation SEC Filings Company Website

2021 Q4 Form 10-K Financial Statement

#000105787722000014 Filed on February 17, 2022

Income Statement

Concept	2021 Q4	2021	2020 Q4
Revenue	$335.0M	$1.458B	$315.7M
YoY Change	6.12%	7.95%	7.82%
Cost Of Revenue	$91.80M	$394.6M	$70.30M
YoY Change	30.58%	32.67%	-0.71%
Gross Profit	$243.2M	$1.064B	$245.4M
YoY Change	-0.89%	0.97%	10.54%
Gross Profit Margin	72.6%	72.94%	77.73%
Selling, General & Admin
YoY Change
% of Gross Profit
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$45.46M	$179.4M	$43.90M
YoY Change	3.55%	1.99%	-1.13%
% of Gross Profit	18.69%	16.87%	17.89%
Operating Expenses	$191.3M	$1.128B	$191.7M
YoY Change	-0.23%	8.38%	12.76%
Operating Profit	$51.95M	$329.7M	$53.70M
YoY Change	-3.27%	6.5%	3.27%
Interest Expense	-$22.05M	$86.70M	-$22.20M
YoY Change	-0.68%	-0.83%	20.0%
% of Operating Profit	-42.45%	26.3%	-41.34%
Other Income/Expense, Net	$6.327M	-$46.87M	$11.60M
YoY Change	-45.46%	9.37%	0.87%
Pretax Income	$36.22M	$282.8M	$43.10M
YoY Change	-15.95%	6.04%	-4.43%
Income Tax	$3.380M	$36.91M	$5.500M
% Of Pretax Income	9.33%	13.05%	12.76%
Net Earnings	$32.80M	$245.6M	$37.50M
YoY Change	-12.54%	3.43%	-20.38%
Net Earnings / Revenue	9.79%	16.84%	11.88%
Basic Earnings Per Share		$4.85
Diluted Earnings Per Share	$646.7K	$4.85	$741.1K
COMMON SHARES
Basic Shares Outstanding	50.52M shares	50.60M shares	50.46M shares
Diluted Shares Outstanding		50.65M shares

Balance Sheet

Concept	2021 Q4	2021	2020 Q4
SHORT-TERM ASSETS
Cash & Short-Term Investments	$215.2M	$215.2M	$300.1M
YoY Change	-28.28%	-28.28%	38.1%
Cash & Equivalents	$215.2M	$215.2M	$275.1M
Short-Term Investments	$0.00	$0.00	$25.00M
Other Short-Term Assets	$5.708M	$176.5M	$1.995M
YoY Change	186.12%	11.61%	392.59%
Inventory	$95.60M	$95.60M	$96.60M
Prepaid Expenses	$24.68M		$20.18M
Receivables	$78.82M	$78.82M	$72.83M
Other Receivables	$29.76M	$29.76M	$14.90M
Total Short-Term Assets	$595.9M	$595.9M	$642.4M
YoY Change	-7.24%	-7.24%	13.67%
LONG-TERM ASSETS
Property, Plant & Equipment	$4.902B	$4.902B	$4.710B
YoY Change	4.08%	4.08%	3.93%
Goodwill
YoY Change
Intangibles
YoY Change
Long-Term Investments	$10.39M	$123.8M	$10.66M
YoY Change	-2.59%	-2.42%	-3.96%
Other Assets	$59.22M	$1.589B	$58.52M
YoY Change	1.21%	-1.7%	-4.12%
Total Long-Term Assets	$6.615B	$6.615B	$6.453B
YoY Change	2.51%	2.51%	6.2%
TOTAL ASSETS
Total Short-Term Assets	$595.9M	$595.9M	$642.4M
Total Long-Term Assets	$6.615B	$6.615B	$6.453B
Total Assets	$7.211B	$7.211B	$7.095B
YoY Change	1.62%	1.63%	6.84%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$146.0M	$146.0M	$120.6M
YoY Change	21.07%	21.04%	8.88%
Accrued Expenses	$79.63M	$79.63M	$76.30M
YoY Change	4.36%	4.36%	3.81%
Deferred Revenue	$43.47M		$29.34M
YoY Change	48.16%		3.12%
Short-Term Debt	$0.00	$0.00	$0.00
YoY Change
Long-Term Debt Due	$0.00		$0.00
YoY Change			-100.0%
Total Short-Term Liabilities	$325.6M	$325.6M	$287.6M
YoY Change	13.23%	13.22%	-23.29%
LONG-TERM LIABILITIES
Long-Term Debt	$2.001B	$2.001B	$2.000B
YoY Change	0.01%	0.01%	15.19%
Other Long-Term Liabilities	$63.49M	$1.367B	$48.75M
YoY Change	30.22%	-5.13%	8.02%
Total Long-Term Liabilities	$2.209B	$3.367B	$2.241B
YoY Change	-1.42%	-2.14%	8.82%
TOTAL LIABILITIES
Total Short-Term Liabilities	$325.6M	$325.6M	$287.6M
Total Long-Term Liabilities	$2.209B	$3.367B	$2.241B
Total Liabilities	$2.535B	$4.542B	$2.528B
YoY Change	0.25%	0.15%	3.88%
SHAREHOLDERS EQUITY
Retained Earnings	$1.834B		$1.734B
YoY Change	5.74%		6.09%
Common Stock	$874.9M		$869.2M
YoY Change	0.65%		0.11%
Preferred Stock
YoY Change
Treasury Stock (at cost)			$0.00
YoY Change			-100.0%
Treasury Stock Shares			0.000 shares
Shareholders Equity	$2.668B	$2.668B	$2.560B
YoY Change
Total Liabilities & Shareholders Equity	$7.211B	$7.211B	$7.095B
YoY Change	1.62%	1.63%	6.84%

Cashflow Statement

Concept	2021 Q4	2021	2020 Q4
OPERATING ACTIVITIES
Net Income	$32.80M	$245.6M	$37.50M
YoY Change	-12.54%	3.43%	-20.38%
Depreciation, Depletion And Amortization	$45.46M	$179.4M	$43.90M
YoY Change	3.55%	1.99%	-1.13%
Cash From Operating Activities	$59.86M	$363.3M	$104.1M
YoY Change	-42.5%	-6.41%	30.78%
INVESTING ACTIVITIES
Capital Expenditures	-$103.1M	$300.0M	-$97.50M
YoY Change	5.7%	-3.52%	22.18%
Acquisitions
YoY Change
Other Investing Activities	-$2.976M	-$2.037M	-$7.600M
YoY Change	-60.84%	-67.85%	-6.17%
Cash From Investing Activities	-$106.0M	-$273.7M	-$105.2M
YoY Change	0.79%	-21.2%	19.68%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net		$3.031M
YoY Change		-34.69%
Debt Paid & Issued, Net		$0.00
YoY Change		-100.0%
Cash From Financing Activities	-38.25M	-$149.5M	-35.80M
YoY Change	6.85%	-979.89%	2.29%
NET CHANGE
Cash From Operating Activities	59.86M	$363.3M	104.1M
Cash From Investing Activities	-106.0M	-$273.7M	-105.2M
Cash From Financing Activities	-38.25M	-$149.5M	-35.80M
Net Change In Cash	-84.43M	-$59.87M	-36.90M
YoY Change	128.8%	-203.48%	-14.78%
FREE CASH FLOW
Cash From Operating Activities	$59.86M	$363.3M	$104.1M
Capital Expenditures	-$103.1M	$300.0M	-$97.50M
Free Cash Flow	$162.9M	$63.27M	$201.6M
YoY Change	-19.19%	-18.04%	26.47%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2021	dei	Local Phone Number LocalPhoneNumber	388-2200
CY2021	dei	Entity Central Index Key EntityCentralIndexKey	0001057877
CY2021	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2021
CY2021	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2021	dei	Amendment Flag AmendmentFlag	false
CY2021	dei	Document Type DocumentType	10-K
CY2021	dei	Document Annual Report DocumentAnnualReport	true
CY2021	dei	Document Period End Date DocumentPeriodEndDate	2021-12-31
CY2021	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2021	dei	Document Transition Report DocumentTransitionReport	false
CY2021	dei	Entity File Number EntityFileNumber	1-14465
CY2021	dei	Entity Registrant Name EntityRegistrantName	IDACORP, Inc.
CY2021	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	82-0505802
CY2021	dei	Entity Address Address Line1 EntityAddressAddressLine1	1221 W. Idaho Street
CY2021	dei	Entity Address City Or Town EntityAddressCityOrTown	Boise,
CY2021	dei	Entity Address State Or Province EntityAddressStateOrProvince	ID
CY2021	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	83702-5627
CY2021	dei	City Area Code CityAreaCode	(208)
CY2021	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	ID
CY2021	dei	Security12b Title Security12bTitle	Common Stock, without par value
CY2021	dei	Trading Symbol TradingSymbol	IDA
CY2021	dei	Security Exchange Name SecurityExchangeName	NYSE
CY2021	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	Yes
CY2021	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2021	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2021	dei	Entity Interactive Data Current EntityInteractiveDataCurrent	Yes
CY2021	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
CY2021	dei	Entity Small Business EntitySmallBusiness	false
CY2021	dei	Entity Emerging Growth Company EntityEmergingGrowthCompany	false
CY2021	dei	Icfr Auditor Attestation Flag IcfrAuditorAttestationFlag	true
CY2021	dei	Entity Shell Company EntityShellCompany	false
CY2021Q2	dei	Entity Public Float EntityPublicFloat	4876126808	USD
CY2022Q1	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	50523810	shares
CY2020	us-gaap	Regulated Operating Revenue Electric Non Nuclear RegulatedOperatingRevenueElectricNonNuclear	1347340000	USD
CY2021Q4	us-gaap	Collateral Already Posted Aggregate Fair Value CollateralAlreadyPostedAggregateFairValue	0	USD
CY2021	dei	Auditor Firm AuditorFirmId	34
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CY2019	us-gaap	Regulated Operating Revenue Electric Non Nuclear RegulatedOperatingRevenueElectricNonNuclear	1342940000	USD
CY2021	us-gaap	Unregulated Operating Revenue UnregulatedOperatingRevenue	2674000	USD
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CY2019	us-gaap	Unregulated Operating Revenue UnregulatedOperatingRevenue	3443000	USD
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CY2021	us-gaap	Utilities Operating Expense Fuel Used UtilitiesOperatingExpenseFuelUsed	180550000	USD
CY2020	us-gaap	Utilities Operating Expense Fuel Used UtilitiesOperatingExpenseFuelUsed	172740000	USD
CY2019	us-gaap	Utilities Operating Expense Fuel Used UtilitiesOperatingExpenseFuelUsed	156872000	USD
CY2021	ida	Powercostadjustmentexpensedeferral Powercostadjustmentexpensedeferral	-49844000	USD
CY2020	ida	Powercostadjustmentexpensedeferral Powercostadjustmentexpensedeferral	-33708000	USD
CY2019	ida	Powercostadjustmentexpensedeferral Powercostadjustmentexpensedeferral	2047000	USD
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CY2021	ida	Energy Efficiency Programs EnergyEfficiencyPrograms	29920000	USD
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CY2019	ida	Energy Efficiency Programs EnergyEfficiencyPrograms	40128000	USD
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CY2019	us-gaap	Operating Expenses OperatingExpenses	1048057000	USD
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CY2021	us-gaap	Public Utilities Allowance For Funds Used During Construction Capitalized Cost Of Equity PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity	31537000	USD
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CY2021	us-gaap	Interest Expense Debt InterestExpenseDebt	84145000	USD
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CY2021	us-gaap	Interest Costs Capitalized Adjustment InterestCostsCapitalizedAdjustment	11993000	USD
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CY2019	us-gaap	Interest Costs Capitalized Adjustment InterestCostsCapitalizedAdjustment	10703000	USD
CY2021	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-3141000	USD
CY2020	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	3509000	USD
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CY2021	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	282784000	USD
CY2020	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	266668000	USD
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CY2020	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	50572000	shares
CY2019	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	50537000	shares
CY2021	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	4.85
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CY2021	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	322000	USD
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CY2019	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	219414000	USD
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CY2020Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	275116000	USD
CY2021Q4	us-gaap	Short Term Investments ShortTermInvestments	0	USD
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CY2020Q4	us-gaap	Prepaid Expense Current PrepaidExpenseCurrent	20184000	USD
CY2021Q4	us-gaap	Regulatory Assets Current RegulatoryAssetsCurrent	71223000	USD
CY2020Q4	us-gaap	Regulatory Assets Current RegulatoryAssetsCurrent	63407000	USD
CY2021Q4	us-gaap	Other Assets Current OtherAssetsCurrent	5708000	USD
CY2020Q4	us-gaap	Other Assets Current OtherAssetsCurrent	1995000	USD
CY2021Q4	us-gaap	Assets Current AssetsCurrent	595873000	USD
CY2020Q4	us-gaap	Assets Current AssetsCurrent	642401000	USD
CY2021Q4	us-gaap	Long Term Investments LongTermInvestments	123824000	USD
CY2020Q4	us-gaap	Long Term Investments LongTermInvestments	126948000	USD
CY2021Q4	us-gaap	Public Utilities Property Plant And Equipment Plant In Service PublicUtilitiesPropertyPlantAndEquipmentPlantInService	6509316000	USD
CY2020Q4	us-gaap	Public Utilities Property Plant And Equipment Plant In Service PublicUtilitiesPropertyPlantAndEquipmentPlantInService	6283790000	USD
CY2021Q4	us-gaap	Public Utilities Property Plant And Equipment Accumulated Depreciation PublicUtilitiesPropertyPlantAndEquipmentAccumulatedDepreciation	2298951000	USD
CY2020Q4	us-gaap	Public Utilities Property Plant And Equipment Accumulated Depreciation PublicUtilitiesPropertyPlantAndEquipmentAccumulatedDepreciation	2193831000	USD
CY2021Q4	us-gaap	Public Utilities Property Plant And Equipment Net PublicUtilitiesPropertyPlantAndEquipmentNet	4210365000	USD
CY2020Q4	us-gaap	Public Utilities Property Plant And Equipment Net PublicUtilitiesPropertyPlantAndEquipmentNet	4089959000	USD
CY2021Q4	us-gaap	Construction In Progress Gross ConstructionInProgressGross	670585000	USD
CY2020Q4	us-gaap	Construction In Progress Gross ConstructionInProgressGross	597152000	USD
CY2021Q4	us-gaap	Plant Held For Future Use Amount PlantHeldForFutureUseAmount	4511000	USD
CY2020Q4	us-gaap	Plant Held For Future Use Amount PlantHeldForFutureUseAmount	4109000	USD
CY2021Q4	us-gaap	Property Plant And Equipment Other PropertyPlantAndEquipmentOther	16361000	USD
CY2020Q4	us-gaap	Property Plant And Equipment Other PropertyPlantAndEquipmentOther	18290000	USD
CY2021Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	4901822000	USD
CY2020Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	4709510000	USD
CY2021Q4	us-gaap	Life Insurance Corporate Or Bank Owned Amount LifeInsuranceCorporateOrBankOwnedAmount	67343000	USD
CY2020Q4	us-gaap	Life Insurance Corporate Or Bank Owned Amount LifeInsuranceCorporateOrBankOwnedAmount	62382000	USD
CY2021Q4	us-gaap	Regulatory Assets Noncurrent RegulatoryAssetsNoncurrent	1462431000	USD
CY2020Q4	us-gaap	Regulatory Assets Noncurrent RegulatoryAssetsNoncurrent	1495488000	USD
CY2021Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	59222000	USD
CY2020Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	58515000	USD
CY2021Q4	us-gaap	Assets Noncurrent Other Than Noncurrent Investments And Property Plant And Equipment AssetsNoncurrentOtherThanNoncurrentInvestmentsAndPropertyPlantAndEquipment	1588996000	USD
CY2020Q4	us-gaap	Assets Noncurrent Other Than Noncurrent Investments And Property Plant And Equipment AssetsNoncurrentOtherThanNoncurrentInvestmentsAndPropertyPlantAndEquipment	1616385000	USD
CY2021Q4	us-gaap	Assets Assets	7210515000	USD
CY2020Q4	us-gaap	Assets Assets	7095244000	USD
CY2021Q4	us-gaap	Accounts Payable Current AccountsPayableCurrent	145980000	USD
CY2020Q4	us-gaap	Accounts Payable Current AccountsPayableCurrent	120576000	USD
CY2021Q4	us-gaap	Taxes Payable Current TaxesPayableCurrent	14229000	USD
CY2020Q4	us-gaap	Taxes Payable Current TaxesPayableCurrent	19508000	USD
CY2021Q4	us-gaap	Interest Payable Current InterestPayableCurrent	23959000	USD
CY2020Q4	us-gaap	Interest Payable Current InterestPayableCurrent	24030000	USD
CY2021Q4	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	55666000	USD
CY2020Q4	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	52245000	USD
CY2021Q4	us-gaap	Regulatory Liability Current RegulatoryLiabilityCurrent	11239000	USD
CY2020Q4	us-gaap	Regulatory Liability Current RegulatoryLiabilityCurrent	11104000	USD
CY2021Q4	us-gaap	Contract With Customer Liability Current ContractWithCustomerLiabilityCurrent	43472000	USD
CY2020Q4	us-gaap	Contract With Customer Liability Current ContractWithCustomerLiabilityCurrent	29341000	USD
CY2021Q4	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	31079000	USD
CY2020Q4	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	30767000	USD
CY2021Q4	us-gaap	Liabilities Current LiabilitiesCurrent	325624000	USD
CY2020Q4	us-gaap	Liabilities Current LiabilitiesCurrent	287571000	USD
CY2021Q4	us-gaap	Deferred Income Tax Liabilities Net DeferredIncomeTaxLiabilitiesNet	842375000	USD
CY2020Q4	us-gaap	Deferred Income Tax Liabilities Net DeferredIncomeTaxLiabilitiesNet	800251000	USD
CY2021Q4	us-gaap	Regulatory Liability Noncurrent RegulatoryLiabilityNoncurrent	781695000	USD
CY2020Q4	us-gaap	Regulatory Liability Noncurrent RegulatoryLiabilityNoncurrent	757730000	USD
CY2021Q4	us-gaap	Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent	521462000	USD
CY2020Q4	us-gaap	Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent	634070000	USD
CY2021Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	63485000	USD
CY2020Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	48752000	USD
CY2021Q4	us-gaap	Liabilities Noncurrent LiabilitiesNoncurrent	2209017000	USD
CY2020Q4	us-gaap	Liabilities Noncurrent LiabilitiesNoncurrent	2240803000	USD
CY2021Q4	us-gaap	Long Term Debt LongTermDebt	2000640000	USD
CY2020Q4	us-gaap	Long Term Debt LongTermDebt	2000414000	USD
CY2021Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2020Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2020Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	120000000	shares
CY2021Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	120000000	shares
CY2021Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	50516000	shares
CY2020Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	50462000	shares
CY2021Q4	us-gaap	Common Stock Value CommonStockValue	874896000	USD
CY2020Q4	us-gaap	Common Stock Value CommonStockValue	869235000	USD
CY2021Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	1833580000	USD
CY2020Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	1734103000	USD
CY2021Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-40040000	USD
CY2020Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-43358000	USD
CY2021Q4	us-gaap	Stockholders Equity StockholdersEquity	2668436000	USD
CY2020Q4	us-gaap	Stockholders Equity StockholdersEquity	2559980000	USD
CY2021Q4	us-gaap	Minority Interest MinorityInterest	6798000	USD
CY2020Q4	us-gaap	Minority Interest MinorityInterest	6476000	USD
CY2021Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	2675234000	USD
CY2020Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	2566456000	USD
CY2021Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	7210515000	USD
CY2020Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	7095244000	USD
CY2021	us-gaap	Profit Loss ProfitLoss	245872000	USD
CY2020	us-gaap	Profit Loss ProfitLoss	237968000	USD
CY2019	us-gaap	Profit Loss ProfitLoss	233328000	USD
CY2021	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	179444000	USD
CY2020	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	175941000	USD
CY2019	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	173800000	USD
CY2021	us-gaap	Deferred Income Taxes And Tax Credits DeferredIncomeTaxesAndTaxCredits	23901000	USD
CY2020	us-gaap	Deferred Income Taxes And Tax Credits DeferredIncomeTaxesAndTaxCredits	25175000	USD
CY2019	us-gaap	Deferred Income Taxes And Tax Credits DeferredIncomeTaxesAndTaxCredits	22389000	USD
CY2021	us-gaap	Increase Decrease In Regulatory Assets And Liabilities IncreaseDecreaseInRegulatoryAssetsAndLiabilities	33705000	USD
CY2020	us-gaap	Increase Decrease In Regulatory Assets And Liabilities IncreaseDecreaseInRegulatoryAssetsAndLiabilities	36246000	USD
CY2019	us-gaap	Increase Decrease In Regulatory Assets And Liabilities IncreaseDecreaseInRegulatoryAssetsAndLiabilities	4310000	USD
CY2021	us-gaap	Pension And Other Postretirement Benefit Expense PensionAndOtherPostretirementBenefitExpense	33817000	USD
CY2020	us-gaap	Pension And Other Postretirement Benefit Expense PensionAndOtherPostretirementBenefitExpense	28970000	USD
CY2019	us-gaap	Pension And Other Postretirement Benefit Expense PensionAndOtherPostretirementBenefitExpense	27804000	USD
CY2021	us-gaap	Pension And Other Postretirement Benefit Contributions PensionAndOtherPostretirementBenefitContributions	44220000	USD
CY2020	us-gaap	Pension And Other Postretirement Benefit Contributions PensionAndOtherPostretirementBenefitContributions	45161000	USD
CY2019	us-gaap	Pension And Other Postretirement Benefit Contributions PensionAndOtherPostretirementBenefitContributions	48525000	USD
CY2021	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	11435000	USD
CY2020	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	11513000	USD
CY2019	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	12370000	USD
CY2021	us-gaap	Equity Method Investment Dividends Or Distributions EquityMethodInvestmentDividendsOrDistributions	11711000	USD
CY2020	us-gaap	Equity Method Investment Dividends Or Distributions EquityMethodInvestmentDividendsOrDistributions	14477000	USD
CY2019	us-gaap	Equity Method Investment Dividends Or Distributions EquityMethodInvestmentDividendsOrDistributions	21800000	USD
CY2021	us-gaap	Public Utilities Allowance For Funds Used During Construction Additions PublicUtilitiesAllowanceForFundsUsedDuringConstructionAdditions	31537000	USD
CY2020	us-gaap	Public Utilities Allowance For Funds Used During Construction Additions PublicUtilitiesAllowanceForFundsUsedDuringConstructionAdditions	29551000	USD
CY2019	us-gaap	Public Utilities Allowance For Funds Used During Construction Additions PublicUtilitiesAllowanceForFundsUsedDuringConstructionAdditions	27112000	USD
CY2021	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-8929000	USD
CY2020	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-10457000	USD
CY2019	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-8040000	USD
CY2021	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	6697000	USD
CY2020	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	374000	USD
CY2019	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	5996000	USD
CY2021	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	17700000	USD
CY2020	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	-356000	USD
CY2019	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	-9526000	USD
CY2021	us-gaap	Increase Decrease In Accrued Income Taxes Payable IncreaseDecreaseInAccruedIncomeTaxesPayable	-17885000	USD
CY2020	us-gaap	Increase Decrease In Accrued Income Taxes Payable IncreaseDecreaseInAccruedIncomeTaxesPayable	8950000	USD
CY2019	us-gaap	Increase Decrease In Accrued Income Taxes Payable IncreaseDecreaseInAccruedIncomeTaxesPayable	742000	USD
CY2021	us-gaap	Increase Decrease In Other Current Assets IncreaseDecreaseInOtherCurrentAssets	8327000	USD
CY2020	us-gaap	Increase Decrease In Other Current Assets IncreaseDecreaseInOtherCurrentAssets	-4910000	USD
CY2019	us-gaap	Increase Decrease In Other Current Assets IncreaseDecreaseInOtherCurrentAssets	8820000	USD
CY2021	us-gaap	Increase Decrease In Other Current Liabilities IncreaseDecreaseInOtherCurrentLiabilities	3102000	USD
CY2020	us-gaap	Increase Decrease In Other Noncurrent Liabilities IncreaseDecreaseInOtherNoncurrentLiabilities	2034000	USD
CY2020	us-gaap	Increase Decrease In Other Current Liabilities IncreaseDecreaseInOtherCurrentLiabilities	7996000	USD
CY2019	us-gaap	Increase Decrease In Other Current Liabilities IncreaseDecreaseInOtherCurrentLiabilities	-799000	USD
CY2021	us-gaap	Increase Decrease In Other Noncurrent Assets IncreaseDecreaseInOtherNoncurrentAssets	10764000	USD
CY2020	us-gaap	Increase Decrease In Other Noncurrent Assets IncreaseDecreaseInOtherNoncurrentAssets	5546000	USD
CY2019	us-gaap	Increase Decrease In Other Noncurrent Assets IncreaseDecreaseInOtherNoncurrentAssets	4375000	USD
CY2021	us-gaap	Increase Decrease In Other Noncurrent Liabilities IncreaseDecreaseInOtherNoncurrentLiabilities	3358000	USD
CY2019	us-gaap	Increase Decrease In Other Noncurrent Liabilities IncreaseDecreaseInOtherNoncurrentLiabilities	555000	USD
CY2021	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	363264000	USD
CY2020	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	388131000	USD
CY2019	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	366625000	USD
CY2021	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	299999000	USD
CY2020	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	310938000	USD
CY2019	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	278705000	USD
CY2021	ida	Paymentsreceivedfromtransmissionprojectjointfundingpartners Paymentsreceivedfromtransmissionprojectjointfundingpartners	5876000	USD
CY2020	ida	Paymentsreceivedfromtransmissionprojectjointfundingpartners Paymentsreceivedfromtransmissionprojectjointfundingpartners	3197000	USD
CY2019	ida	Paymentsreceivedfromtransmissionprojectjointfundingpartners Paymentsreceivedfromtransmissionprojectjointfundingpartners	2442000	USD
CY2021	us-gaap	Payments To Acquire Partners Interest In Real Estate Partnership Net Of Cash Acquired PaymentsToAcquirePartnersInterestInRealEstatePartnershipNetOfCashAcquired	15148000	USD
CY2020	us-gaap	Payments To Acquire Partners Interest In Real Estate Partnership Net Of Cash Acquired PaymentsToAcquirePartnersInterestInRealEstatePartnershipNetOfCashAcquired	14338000	USD
CY2019	us-gaap	Payments To Acquire Partners Interest In Real Estate Partnership Net Of Cash Acquired PaymentsToAcquirePartnersInterestInRealEstatePartnershipNetOfCashAcquired	2687000	USD
CY2021	us-gaap	Proceeds From Equity Method Investment Dividends Or Distributions Return Of Capital ProceedsFromEquityMethodInvestmentDividendsOrDistributionsReturnOfCapital	14439000	USD
CY2020	us-gaap	Proceeds From Equity Method Investment Dividends Or Distributions Return Of Capital ProceedsFromEquityMethodInvestmentDividendsOrDistributionsReturnOfCapital	1073000	USD
CY2019	us-gaap	Proceeds From Equity Method Investment Dividends Or Distributions Return Of Capital ProceedsFromEquityMethodInvestmentDividendsOrDistributionsReturnOfCapital	0	USD
CY2021	us-gaap	Payments To Acquire Equity Securities Fv Ni PaymentsToAcquireEquitySecuritiesFvNi	17186000	USD
CY2020	us-gaap	Payments To Acquire Equity Securities Fv Ni PaymentsToAcquireEquitySecuritiesFvNi	33382000	USD
CY2019	us-gaap	Payments To Acquire Equity Securities Fv Ni PaymentsToAcquireEquitySecuritiesFvNi	10896000	USD
CY2021	us-gaap	Payments To Acquire Short Term Investments PaymentsToAcquireShortTermInvestments	25000000	USD
CY2020	us-gaap	Payments To Acquire Short Term Investments PaymentsToAcquireShortTermInvestments	25000000	USD
CY2019	us-gaap	Payments To Acquire Short Term Investments PaymentsToAcquireShortTermInvestments	0	USD
CY2021	us-gaap	Proceeds From Maturities Prepayments And Calls Of Shortterm Investments ProceedsFromMaturitiesPrepaymentsAndCallsOfShorttermInvestments	50000000	USD
CY2020	us-gaap	Proceeds From Maturities Prepayments And Calls Of Shortterm Investments ProceedsFromMaturitiesPrepaymentsAndCallsOfShorttermInvestments	0	USD
CY2019	us-gaap	Proceeds From Maturities Prepayments And Calls Of Shortterm Investments ProceedsFromMaturitiesPrepaymentsAndCallsOfShorttermInvestments	0	USD
CY2021	us-gaap	Proceeds From Sale Of Trading Securities Heldforinvestment ProceedsFromSaleOfTradingSecuritiesHeldforinvestment	11328000	USD
CY2020	us-gaap	Proceeds From Sale Of Trading Securities Heldforinvestment ProceedsFromSaleOfTradingSecuritiesHeldforinvestment	25795000	USD
CY2019	us-gaap	Proceeds From Sale Of Trading Securities Heldforinvestment ProceedsFromSaleOfTradingSecuritiesHeldforinvestment	5080000	USD
CY2021	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	-2037000	USD
CY2020	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	-6335000	USD
CY2019	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	-4274000	USD
CY2021	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-273653000	USD
CY2020	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-347258000	USD
CY2019	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-280492000	USD
CY2021	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	0	USD
CY2020	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	310000000	USD
CY2019	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	166100000	USD
CY2021	ida	Premium On Issuance Of Long Term Debt PremiumOnIssuanceOfLongTermDebt	0	USD
CY2020	ida	Premium On Issuance Of Long Term Debt PremiumOnIssuanceOfLongTermDebt	31384000	USD
CY2019	ida	Premium On Issuance Of Long Term Debt PremiumOnIssuanceOfLongTermDebt	0	USD
CY2021	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	0	USD
CY2020	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	175000000	USD
CY2019	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	166100000	USD
CY2021	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	146119000	USD
CY2020	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	137813000	USD
CY2019	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	129677000	USD
CY2021	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	3031000	USD
CY2020	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	4641000	USD
CY2019	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	4160000	USD
CY2021	us-gaap	Payments Of Debt Extinguishment Costs PaymentsOfDebtExtinguishmentCosts	0	USD
CY2020	us-gaap	Payments Of Debt Extinguishment Costs PaymentsOfDebtExtinguishmentCosts	3305000	USD
CY2019	us-gaap	Payments Of Debt Extinguishment Costs PaymentsOfDebtExtinguishmentCosts	0	USD
CY2021	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-334000	USD
CY2020	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-3636000	USD
CY2019	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-2534000	USD
CY2021	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-149484000	USD
CY2020	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	16989000	USD
CY2019	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-136371000	USD
CY2021	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-59873000	USD
CY2020	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	57862000	USD
CY2019	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-50238000	USD
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	275116000	USD
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	217254000	USD
CY2018Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	267492000	USD
CY2021Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	215243000	USD
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	275116000	USD
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	217254000	USD
CY2021	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	34330000	USD
CY2020	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	9975000	USD
CY2019	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	14055000	USD
CY2021	us-gaap	Interest Paid Net InterestPaidNet	83499000	USD
CY2020	us-gaap	Interest Paid Net InterestPaidNet	81074000	USD
CY2019	us-gaap	Interest Paid Net InterestPaidNet	85260000	USD
CY2021	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	53690000	USD
CY2020	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	45004000	USD
CY2019	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	38815000	USD
CY2021	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	2.88
CY2020	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	2.72
CY2019	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	2.56
CY2021Q4	us-gaap	Stockholders Equity StockholdersEquity	2668436000	USD
CY2020Q4	us-gaap	Stockholders Equity StockholdersEquity	2559980000	USD
CY2019Q4	us-gaap	Stockholders Equity StockholdersEquity	2464628000	USD
CY2021	us-gaap	Nature Of Operations NatureOfOperations	<div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%">Nature of Business</span></div><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:12pt;font-weight:400;line-height:120%"> </span></div><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">IDACORP is a holding company formed in 1998 whose principal operating subsidiary is Idaho Power. Idaho Power is an electric utility engaged in the generation, transmission, distribution, sales, and purchase of electric energy and capacity with a service area covering approximately 24,000 square miles in southern Idaho and eastern Oregon. Idaho Power is regulated primarily by the state utility regulatory commissions of Idaho and Oregon and the Federal Energy Regulatory Commission (FERC). Idaho Power is the parent of Idaho Energy Resources Co. (IERCo), a joint venturer in Bridger Coal Company (BCC), which mines and supplies coal to the Jim Bridger generating plant (Jim Bridger plant) owned in part by Idaho Power.</span></div><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:12pt;font-weight:400;line-height:120%"> </span></div><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">IDACORP’s other notable wholly-owned subsidiaries include IDACORP Financial Services, Inc. (IFS), an investor in affordable housing and other real estate tax credit investments, and Ida-West Energy Company (Ida-West), an operator of small hydropower generation projects that satisfy the requirements of the Public Utility Regulatory Policies Act of 1978 (PURPA).</span></div>
CY2021	us-gaap	Use Of Estimates UseOfEstimates	<div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%">Management Estimates</span></div><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"> </span></div><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Management makes estimates and assumptions when preparing financial statements in conformity with GAAP. These estimates and assumptions include those related to rate regulation, retirement benefits, contingencies, asset impairment, income taxes, unbilled revenues, and bad debt. These estimates and assumptions affect the reported amounts of assets and liabilities and the disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. These estimates involve judgments with respect to, among other things, future economic factors that are difficult to predict and are beyond management’s control. Accordingly, actual results could differ from those estimates.</span></div>
CY2021	ida	Maturity Period Of Short Term Investments MaturityPeriodOfShortTermInvestments	P90D
CY2021Q4	ida	Late Payment Fee Customer Billings LatePaymentFeeCustomerBillings	0.01
CY2021	ida	Period Of Time After Which Unpaid Accounts Are Deemed Late PeriodOfTimeAfterWhichUnpaidAccountsAreDeemedLate	P30D
CY2020Q4	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	4766000	USD
CY2019Q4	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	1401000	USD
CY2021	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	2017000	USD
CY2020	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	5222000	USD
CY2021	us-gaap	Allowance For Doubtful Accounts Receivable Write Offs AllowanceForDoubtfulAccountsReceivableWriteOffs	2284000	USD
CY2020	us-gaap	Allowance For Doubtful Accounts Receivable Write Offs AllowanceForDoubtfulAccountsReceivableWriteOffs	1857000	USD
CY2021Q4	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	4499000	USD
CY2020Q4	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	4766000	USD
CY2021Q4	ida	Allowance For Uncollectible Accounts As A Percentage Of Customer Receivables AllowanceForUncollectibleAccountsAsAPercentageOfCustomerReceivables	0.054
CY2020Q4	ida	Allowance For Uncollectible Accounts As A Percentage Of Customer Receivables AllowanceForUncollectibleAccountsAsAPercentageOfCustomerReceivables	0.061
CY2021	ida	Impairment Of Receivables ImpairmentOfReceivables	0	USD
CY2020	ida	Impairment Of Receivables ImpairmentOfReceivables	0	USD
CY2019	us-gaap	Public Utilities Property Plant And Equipment Disclosure Of Composite Depreciation Rate For Plants In Service PublicUtilitiesPropertyPlantAndEquipmentDisclosureOfCompositeDepreciationRateForPlantsInService	0.029
CY2020	us-gaap	Impairment Of Long Lived Assets Held For Use ImpairmentOfLongLivedAssetsHeldForUse	0	USD
CY2019	us-gaap	Impairment Of Long Lived Assets Held For Use ImpairmentOfLongLivedAssetsHeldForUse	0	USD
CY2021	us-gaap	Impairment Of Long Lived Assets Held For Use ImpairmentOfLongLivedAssetsHeldForUse	0	USD
CY2021	us-gaap	Public Utilities Allowance For Funds Used During Construction Rate PublicUtilitiesAllowanceForFundsUsedDuringConstructionRate	0.075
CY2020	us-gaap	Public Utilities Allowance For Funds Used During Construction Rate PublicUtilitiesAllowanceForFundsUsedDuringConstructionRate	0.075
CY2019	us-gaap	Public Utilities Allowance For Funds Used During Construction Rate PublicUtilitiesAllowanceForFundsUsedDuringConstructionRate	0.076
CY2021	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	59317000	USD
CY2020	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	55885000	USD
CY2019	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	54046000	USD
CY2021	ida	Income Tax Reconciliation Afudc IncomeTaxReconciliationAfudc	-9141000	USD
CY2020	ida	Income Tax Reconciliation Afudc IncomeTaxReconciliationAfudc	-8637000	USD
CY2019	ida	Income Tax Reconciliation Afudc IncomeTaxReconciliationAfudc	-7941000	USD
CY2021	ida	Income Tax Reconciliation Capitalized Interest IncomeTaxReconciliationCapitalizedInterest	1077000	USD
CY2020	ida	Income Tax Reconciliation Capitalized Interest IncomeTaxReconciliationCapitalizedInterest	1044000	USD
CY2019	ida	Income Tax Reconciliation Capitalized Interest IncomeTaxReconciliationCapitalizedInterest	976000	USD
CY2021	us-gaap	Income Tax Reconciliation Tax Credits Investment IncomeTaxReconciliationTaxCreditsInvestment	2866000	USD
CY2020	us-gaap	Income Tax Reconciliation Tax Credits Investment IncomeTaxReconciliationTaxCreditsInvestment	2906000	USD
CY2019	us-gaap	Income Tax Reconciliation Tax Credits Investment IncomeTaxReconciliationTaxCreditsInvestment	6252000	USD
CY2021	ida	Effective Income Tax Rate Reconciliation Removal Costs EffectiveIncomeTaxRateReconciliationRemovalCosts	-3302000	USD
CY2020	ida	Effective Income Tax Rate Reconciliation Removal Costs EffectiveIncomeTaxRateReconciliationRemovalCosts	-3148000	USD
CY2019	ida	Effective Income Tax Rate Reconciliation Removal Costs EffectiveIncomeTaxRateReconciliationRemovalCosts	-3139000	USD
CY2021	ida	Income Tax Reconciliation Capitalized Overhead Costs IncomeTaxReconciliationCapitalizedOverheadCosts	-8190000	USD
CY2020	ida	Income Tax Reconciliation Capitalized Overhead Costs IncomeTaxReconciliationCapitalizedOverheadCosts	-7560000	USD
CY2019	ida	Income Tax Reconciliation Capitalized Overhead Costs IncomeTaxReconciliationCapitalizedOverheadCosts	-7140000	USD
CY2021	ida	Income Tax Reconciliation Capitalized Repair Costs IncomeTaxReconciliationCapitalizedRepairCosts	-17430000	USD
CY2020	ida	Income Tax Reconciliation Capitalized Repair Costs IncomeTaxReconciliationCapitalizedRepairCosts	-18480000	USD
CY2019	ida	Income Tax Reconciliation Capitalized Repair Costs IncomeTaxReconciliationCapitalizedRepairCosts	-18480000	USD
CY2021	us-gaap	Income Tax Reconciliation Deductions IncomeTaxReconciliationDeductions	0	USD
CY2020	us-gaap	Income Tax Reconciliation Deductions IncomeTaxReconciliationDeductions	726000	USD
CY2019	us-gaap	Income Tax Reconciliation Deductions IncomeTaxReconciliationDeductions	0	USD
CY2021	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	11359000	USD
CY2020	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	8804000	USD
CY2019	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	8627000	USD
CY2021	us-gaap	Income Tax Reconciliation Nondeductible Expense Depreciation IncomeTaxReconciliationNondeductibleExpenseDepreciation	14233000	USD
CY2020	us-gaap	Income Tax Reconciliation Nondeductible Expense Depreciation IncomeTaxReconciliationNondeductibleExpenseDepreciation	13589000	USD
CY2019	us-gaap	Income Tax Reconciliation Nondeductible Expense Depreciation IncomeTaxReconciliationNondeductibleExpenseDepreciation	14641000	USD
CY2021	ida	Excessdeferredincometaxreversal Excessdeferredincometaxreversal	-8958000	USD
CY2020	ida	Excessdeferredincometaxreversal Excessdeferredincometaxreversal	-4885000	USD
CY2019	ida	Excessdeferredincometaxreversal Excessdeferredincometaxreversal	-6181000	USD
CY2021	ida	Incometaxreturnadjustments Incometaxreturnadjustments	3169000	USD
CY2020	ida	Incometaxreturnadjustments Incometaxreturnadjustments	-2552000	USD
CY2019	ida	Incometaxreturnadjustments Incometaxreturnadjustments	745000	USD
CY2021	us-gaap	Income Tax Reconciliation Tax Credits Other IncomeTaxReconciliationTaxCreditsOther	6245000	USD
CY2020	us-gaap	Income Tax Reconciliation Tax Credits Other IncomeTaxReconciliationTaxCreditsOther	5315000	USD
CY2019	us-gaap	Income Tax Reconciliation Tax Credits Other IncomeTaxReconciliationTaxCreditsOther	2874000	USD
CY2021	ida	Effective Income Tax Rate Reconciliation Affordable Housing Investment Distribution EffectiveIncomeTaxRateReconciliationAffordableHousingInvestmentDistribution	-1010000	USD
CY2020	ida	Effective Income Tax Rate Reconciliation Affordable Housing Investment Distribution EffectiveIncomeTaxRateReconciliationAffordableHousingInvestmentDistribution	-13000	USD
CY2019	ida	Effective Income Tax Rate Reconciliation Affordable Housing Investment Distribution EffectiveIncomeTaxRateReconciliationAffordableHousingInvestmentDistribution	-3232000	USD
CY2021	ida	Effective Income Tax Rate Reconciliation Affordable Housing Investment Amortization EffectiveIncomeTaxRateReconciliationAffordableHousingInvestmentAmortization	4095000	USD
CY2020	ida	Effective Income Tax Rate Reconciliation Affordable Housing Investment Amortization EffectiveIncomeTaxRateReconciliationAffordableHousingInvestmentAmortization	3754000	USD
CY2019	ida	Effective Income Tax Rate Reconciliation Affordable Housing Investment Amortization EffectiveIncomeTaxRateReconciliationAffordableHousingInvestmentAmortization	1825000	USD
CY2021	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	804000	USD
CY2020	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	-154000	USD
CY2019	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	-1114000	USD
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	36912000	USD
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	28700000	USD
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	24507000	USD
CY2021	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.131
CY2020	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.108
CY2019	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.095
CY2021	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	15210000	USD
CY2020	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	7800000	USD
CY2019	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	8830000	USD
CY2021	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	6630000	USD
CY2020	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	3215000	USD
CY2019	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	4865000	USD
CY2021	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	21840000	USD
CY2020	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	11015000	USD
CY2019	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	13695000	USD
CY2021	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-1787000	USD
CY2020	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	11543000	USD
CY2019	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	9486000	USD
CY2021	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	1154000	USD
CY2020	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-1414000	USD
CY2019	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	1159000	USD
CY2021	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-633000	USD
CY2020	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	10129000	USD
CY2019	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	10645000	USD
CY2021	ida	Deferred Investment Tax Credit DeferredInvestmentTaxCredit	14698000	USD
CY2020	ida	Deferred Investment Tax Credit DeferredInvestmentTaxCredit	5727000	USD
CY2019	ida	Deferred Investment Tax Credit DeferredInvestmentTaxCredit	8268000	USD
CY2021	ida	Restored Investment Tax Credit RestoredInvestmentTaxCredit	2866000	USD
CY2020	ida	Restored Investment Tax Credit RestoredInvestmentTaxCredit	2906000	USD
CY2019	ida	Restored Investment Tax Credit RestoredInvestmentTaxCredit	6252000	USD
CY2021	us-gaap	Investment Tax Credit InvestmentTaxCredit	11832000	USD
CY2020	us-gaap	Investment Tax Credit InvestmentTaxCredit	2821000	USD
CY2019	us-gaap	Investment Tax Credit InvestmentTaxCredit	2016000	USD
CY2021	us-gaap	Other Tax Expense Benefit OtherTaxExpenseBenefit	3873000	USD
CY2020	us-gaap	Other Tax Expense Benefit OtherTaxExpenseBenefit	4735000	USD
CY2019	us-gaap	Other Tax Expense Benefit OtherTaxExpenseBenefit	-1849000	USD
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	36912000	USD
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	28700000	USD
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	24507000	USD
CY2021Q4	us-gaap	Deferred Tax Assets Regulatory Assets And Liabilities DeferredTaxAssetsRegulatoryAssetsAndLiabilities	96880000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Regulatory Assets And Liabilities DeferredTaxAssetsRegulatoryAssetsAndLiabilities	95883000	USD
CY2021Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Share Based Compensation Cost DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost	23333000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Share Based Compensation Cost DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost	22576000	USD
CY2021Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Other DeferredTaxAssetsTaxDeferredExpenseOther	48318000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Other DeferredTaxAssetsTaxDeferredExpenseOther	43525000	USD
CY2021Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards DeferredTaxAssetsTaxCreditCarryforwards	41896000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards DeferredTaxAssetsTaxCreditCarryforwards	61707000	USD
CY2021Q4	us-gaap	Deferred Tax Assets Equity Method Investments DeferredTaxAssetsEquityMethodInvestments	12265000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Equity Method Investments DeferredTaxAssetsEquityMethodInvestments	10189000	USD
CY2021Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Pensions DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsPensions	110997000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Pensions DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsPensions	142864000	USD
CY2021Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	17066000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	15005000	USD
CY2021Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	350755000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	391749000	USD
CY2021Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	272530000	USD
CY2020Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	282983000	USD
CY2021Q4	us-gaap	Deferred Tax Liabilities Regulatory Assets And Liabilities DeferredTaxLiabilitiesRegulatoryAssetsAndLiabilities	721276000	USD
CY2020Q4	us-gaap	Deferred Tax Liabilities Regulatory Assets And Liabilities DeferredTaxLiabilitiesRegulatoryAssetsAndLiabilities	687628000	USD
CY2021Q4	us-gaap	Deferred Tax Liabilities Investment In Noncontrolled Affiliates DeferredTaxLiabilitiesInvestmentInNoncontrolledAffiliates	2824000	USD
CY2020Q4	us-gaap	Deferred Tax Liabilities Investment In Noncontrolled Affiliates DeferredTaxLiabilitiesInvestmentInNoncontrolledAffiliates	3257000	USD
CY2021Q4	ida	Deferred Tax Liabilities Prepaid Pension Cost DeferredTaxLiabilitiesPrepaidPensionCost	138154000	USD
CY2020Q4	ida	Deferred Tax Liabilities Prepaid Pension Cost DeferredTaxLiabilitiesPrepaidPensionCost	164399000	USD
CY2021Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	58346000	USD
CY2020Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	53733000	USD
CY2021Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	1193130000	USD
CY2020Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	1192000000	USD
CY2021Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	842375000	USD
CY2020Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	800251000	USD
CY2021Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	0	USD
CY2020Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	0	USD
CY2019Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	0	USD
CY2021Q4	us-gaap	Regulatory Assets RegulatoryAssets	1533654000	USD
CY2020Q4	us-gaap	Regulatory Assets RegulatoryAssets	1558895000	USD
CY2021Q4	us-gaap	Regulatory Liabilities RegulatoryLiabilities	792934000	USD
CY2020Q4	us-gaap	Regulatory Liabilities RegulatoryLiabilities	768834000	USD
CY2021Q2	ida	Annualfixedcostadjustmentmechanismdeferral Annualfixedcostadjustmentmechanismdeferral	38300000	USD
CY2020Q2	ida	Annualfixedcostadjustmentmechanismdeferral Annualfixedcostadjustmentmechanismdeferral	35500000	USD
CY2019Q2	ida	Annualfixedcostadjustmentmechanismdeferral Annualfixedcostadjustmentmechanismdeferral	34800000	USD
CY2021	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	1382653000	USD
CY2020	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	1286637000	USD
CY2019	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	1285286000	USD
CY2021	us-gaap	Regulated Operating Revenue Other RegulatedOperatingRevenueOther	72757000	USD
CY2020	us-gaap	Regulated Operating Revenue Other RegulatedOperatingRevenueOther	60703000	USD
CY2019	us-gaap	Regulated Operating Revenue Other RegulatedOperatingRevenueOther	57654000	USD
CY2021	us-gaap	Regulated Operating Revenue Electric Non Nuclear RegulatedOperatingRevenueElectricNonNuclear	1455410000	USD
CY2020	us-gaap	Regulated Operating Revenue Electric Non Nuclear RegulatedOperatingRevenueElectricNonNuclear	1347340000	USD
CY2019	us-gaap	Regulated Operating Revenue Electric Non Nuclear RegulatedOperatingRevenueElectricNonNuclear	1342940000	USD
CY2021	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	1382653000	USD
CY2020	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	1286637000	USD
CY2019	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	1285286000	USD
CY2020Q4	ida	Energy Efficiency Rider Collection Percentage EnergyEfficiencyRiderCollectionPercentage	0.0275
CY2021Q1	ida	Energy Efficiency Rider Collection Percentage EnergyEfficiencyRiderCollectionPercentage	0.031
CY2021	us-gaap	Regulated Operating Revenue Other RegulatedOperatingRevenueOther	72757000	USD
CY2020	us-gaap	Regulated Operating Revenue Other RegulatedOperatingRevenueOther	60703000	USD
CY2019	us-gaap	Regulated Operating Revenue Other RegulatedOperatingRevenueOther	57654000	USD
CY2021Q4	us-gaap	Secured Debt SecuredDebt	1800000000	USD
CY2020Q4	us-gaap	Secured Debt SecuredDebt	1800000000	USD
CY2021Q4	ida	Pollution Control Revenue Bonds Variable Rate Series2000 Due2027 PollutionControlRevenueBondsVariableRateSeries2000Due2027	4360000	USD
CY2020Q4	ida	Pollution Control Revenue Bonds Variable Rate Series2000 Due2027 PollutionControlRevenueBondsVariableRateSeries2000Due2027	4360000	USD
CY2021Q4	us-gaap	Longterm Pollution Control Bond Current And Noncurrent LongtermPollutionControlBondCurrentAndNoncurrent	170460000	USD
CY2020Q4	us-gaap	Longterm Pollution Control Bond Current And Noncurrent LongtermPollutionControlBondCurrentAndNoncurrent	170460000	USD
CY2021Q4	ida	American Falls Bond Guarantee AmericanFallsBondGuarantee	19885000	USD
CY2020Q4	ida	American Falls Bond Guarantee AmericanFallsBondGuarantee	19885000	USD
CY2021Q4	us-gaap	Debt Instrument Unamortized Discount Premium And Debt Issuance Costs Net DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet	10295000	USD
CY2020Q4	us-gaap	Debt Instrument Unamortized Discount Premium And Debt Issuance Costs Net DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet	10069000	USD
CY2021Q4	us-gaap	Long Term Debt LongTermDebt	2000640000	USD
CY2020Q4	us-gaap	Long Term Debt LongTermDebt	2000414000	USD
CY2021Q4	us-gaap	Secured Debt Current SecuredDebtCurrent	0	USD
CY2020Q4	us-gaap	Secured Debt Current SecuredDebtCurrent	0	USD
CY2021Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	2000640000	USD
CY2020Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	2000414000	USD
CY2021Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Next Twelve Months LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths	0	USD
CY2021Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Two LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo	75000000	USD
CY2021Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Three LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree	49800000	USD
CY2021Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Four LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour	19885000	USD
CY2021Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive	116300000	USD
CY2021Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal After Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive	1729360000	USD
CY2020Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	50461885	shares
CY2019Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	50420017	shares
CY2018Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	50420017	shares
CY2021Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	50516479	shares
CY2020Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	50461885	shares
CY2019Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	50420017	shares
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod	76147	shares
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod	75030	shares
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod	70419	shares
CY2021	us-gaap	Stock Issued During Period Shares New Issues StockIssuedDuringPeriodSharesNewIssues	54594	shares
CY2020	us-gaap	Stock Issued During Period Shares New Issues StockIssuedDuringPeriodSharesNewIssues	41868	shares
CY2021	us-gaap	Employee Service Share Based Compensation Allocation Of Recognized Period Costs Capitalized Amount EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount	0	USD
CY2021	us-gaap	Net Income Loss NetIncomeLoss	245550000	USD
CY2020	us-gaap	Net Income Loss NetIncomeLoss	237417000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	232854000	USD
CY2021	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	50599000	shares
CY2020	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	50538000	shares
CY2019	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	50502000	shares
CY2021	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	46000	shares
CY2020	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	34000	shares
CY2019	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	35000	shares
CY2021	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	50645000	shares
CY2020	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	50572000	shares
CY2019	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	50537000	shares
CY2021	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	4.85
CY2020	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	4.70
CY2019	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	4.61
CY2021	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	4.85
CY2020	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	4.69
CY2019	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	4.61
CY2021	us-gaap	Guarantees Indemnifications And Warranties Policies GuaranteesIndemnificationsAndWarrantiesPolicies	IDACORP and Idaho Power enter into financial agreements and power purchase and sale agreements that include indemnification provisions relating to various forms of claims or liabilities that may arise from the transactions contemplated by these agreements. Generally, a maximum obligation is not explicitly stated in the indemnification provisions and, therefore, the overall maximum amount of the obligation under such indemnification provisions cannot be reasonably estimated. IDACORP and Idaho Power periodically evaluate the likelihood of incurring costs under such indemnities based on their historical experience and the evaluation of the specific indemnities. As of December 31, 2021, management believes the likelihood is remote that IDACORP or Idaho Power would be required to perform under such indemnification provisions or otherwise incur any significant losses with respect to such indemnification obligations. Neither IDACORP nor Idaho Power has recorded any liability on their respective consolidated balance sheets with respect to these indemnification obligations.
CY2020	ida	Fair Value All Levels Transfers Amount FairValueAllLevelsTransfersAmount	0	USD
CY2021	ida	Fair Value All Levels Transfers Amount FairValueAllLevelsTransfersAmount	0	USD
CY2021	us-gaap	Defined Benefit Plan Contributions By Employer DefinedBenefitPlanContributionsByEmployer	8200000	USD
CY2020	us-gaap	Defined Benefit Plan Contributions By Employer DefinedBenefitPlanContributionsByEmployer	7900000	USD
CY2019	us-gaap	Defined Benefit Plan Contributions By Employer DefinedBenefitPlanContributionsByEmployer	7700000	USD
CY2021Q4	us-gaap	Public Utilities Property Plant And Equipment Generation Or Processing PublicUtilitiesPropertyPlantAndEquipmentGenerationOrProcessing	2597285000	USD
CY2020Q4	us-gaap	Public Utilities Property Plant And Equipment Generation Or Processing PublicUtilitiesPropertyPlantAndEquipmentGenerationOrProcessing	2529708000	USD
CY2021Q4	us-gaap	Public Utilities Property Plant And Equipment Other Property Plant And Equipment PublicUtilitiesPropertyPlantAndEquipmentOtherPropertyPlantAndEquipment	544069000	USD
CY2021Q4	us-gaap	Public Utilities Property Plant And Equipment Transmission PublicUtilitiesPropertyPlantAndEquipmentTransmission	1309143000	USD
CY2020Q4	us-gaap	Public Utilities Property Plant And Equipment Transmission PublicUtilitiesPropertyPlantAndEquipmentTransmission	1272360000	USD
CY2021Q4	us-gaap	Public Utilities Property Plant And Equipment Distribution PublicUtilitiesPropertyPlantAndEquipmentDistribution	2058819000	USD
CY2020Q4	us-gaap	Public Utilities Property Plant And Equipment Distribution PublicUtilitiesPropertyPlantAndEquipmentDistribution	1968752000	USD
CY2020Q4	us-gaap	Public Utilities Property Plant And Equipment Other Property Plant And Equipment PublicUtilitiesPropertyPlantAndEquipmentOtherPropertyPlantAndEquipment	512970000	USD
CY2021Q4	us-gaap	Public Utilities Property Plant And Equipment Plant In Service PublicUtilitiesPropertyPlantAndEquipmentPlantInService	6509316000	USD
CY2021	us-gaap	Public Utilities Property Plant And Equipment Disclosure Of Composite Depreciation Rate For Plants In Service PublicUtilitiesPropertyPlantAndEquipmentDisclosureOfCompositeDepreciationRateForPlantsInService	0.0285
CY2020Q4	us-gaap	Public Utilities Property Plant And Equipment Plant In Service PublicUtilitiesPropertyPlantAndEquipmentPlantInService	6283790000	USD
CY2020	us-gaap	Public Utilities Property Plant And Equipment Disclosure Of Composite Depreciation Rate For Plants In Service PublicUtilitiesPropertyPlantAndEquipmentDisclosureOfCompositeDepreciationRateForPlantsInService	0.0288
CY2021Q4	us-gaap	Public Utilities Property Plant And Equipment Accumulated Depreciation PublicUtilitiesPropertyPlantAndEquipmentAccumulatedDepreciation	2298951000	USD
CY2020Q4	us-gaap	Public Utilities Property Plant And Equipment Accumulated Depreciation PublicUtilitiesPropertyPlantAndEquipmentAccumulatedDepreciation	2193831000	USD
CY2021Q4	us-gaap	Public Utilities Property Plant And Equipment Net PublicUtilitiesPropertyPlantAndEquipmentNet	4210365000	USD
CY2020Q4	us-gaap	Public Utilities Property Plant And Equipment Net PublicUtilitiesPropertyPlantAndEquipmentNet	4089959000	USD
CY2021	us-gaap	Asset Retirement Obligation Revision Of Estimate AssetRetirementObligationRevisionOfEstimate	9400000	USD
CY2020Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	27691000	USD
CY2019Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	28191000	USD
CY2021	us-gaap	Asset Retirement Obligation Accretion Expense AssetRetirementObligationAccretionExpense	1021000	USD
CY2020	us-gaap	Asset Retirement Obligation Accretion Expense AssetRetirementObligationAccretionExpense	1053000	USD
CY2021	us-gaap	Asset Retirement Obligation Revision Of Estimate AssetRetirementObligationRevisionOfEstimate	9415000	USD
CY2020	us-gaap	Asset Retirement Obligation Revision Of Estimate AssetRetirementObligationRevisionOfEstimate	193000	USD
CY2021	us-gaap	Asset Retirement Obligation Liabilities Settled AssetRetirementObligationLiabilitiesSettled	1429000	USD
CY2020	us-gaap	Asset Retirement Obligation Liabilities Settled AssetRetirementObligationLiabilitiesSettled	1746000	USD
CY2021Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	36698000	USD
CY2020Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	27691000	USD
CY2021Q4	us-gaap	Real Estate Investments Unconsolidated Real Estate And Other Joint Ventures RealEstateInvestmentsUnconsolidatedRealEstateAndOtherJointVentures	34967000	USD
CY2020Q4	us-gaap	Real Estate Investments Unconsolidated Real Estate And Other Joint Ventures RealEstateInvestmentsUnconsolidatedRealEstateAndOtherJointVentures	28438000	USD
CY2021Q4	us-gaap	Equity Method Investments EquityMethodInvestments	10386000	USD
CY2020Q4	us-gaap	Equity Method Investments EquityMethodInvestments	10662000	USD
CY2021Q4	us-gaap	Other Investments OtherInvestments	1363000	USD
CY2020Q4	us-gaap	Other Investments OtherInvestments	0	USD
CY2021Q4	us-gaap	Investments Investments	123824000	USD
CY2020Q4	us-gaap	Investments Investments	126948000	USD
CY2020	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	11513000	USD
CY2019	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	12370000	USD
CY2021	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	11435000	USD
CY2021	us-gaap	Derivatives Methods Of Accounting Nonhedging Derivatives DerivativesMethodsOfAccountingNonhedgingDerivatives	<div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Idaho Power is exposed to market risk relating to electricity, natural gas, and other fuel commodity prices, all of which are heavily influenced by supply and demand. Market risk may be influenced by market participants’ nonperformance of their contractual obligations and commitments, which affects the supply of or demand for the commodity. Idaho Power uses derivative instruments, such as physical and financial forward contracts, for both electricity and fuel to manage the risks relating to these commodity price exposures. The primary objectives of Idaho Power’s energy purchase and sale activity are to meet the demand of retail electric customers, maintain appropriate physical reserves to ensure reliability, and make economic use of temporary surpluses that may develop.</span></div><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"> </span></div>All of Idaho Power's derivative instruments have been entered into for the purpose of securing energy resources for future periods or economically hedging forecasted purchases and sales, though none of these instruments have been designated as cash flow hedges. Idaho Power offsets fair value amounts recognized on its balance sheet and applies collateral related to derivative instruments executed with the same counterparty under the same master netting agreement. Idaho Power does not offset a counterparty's current derivative contracts with the counterparty's long-term derivative contracts, although Idaho Power's master netting arrangements would allow current and long-term positions to be offset in the event of default. Also, in the event of default, Idaho Power's master netting arrangements would allow for the offsetting of all transactions executed under the master netting arrangement. These types of transactions may include non-derivative instruments, derivatives qualifying for scope exceptions, receivables and payables arising from settled positions, and other forms of non-cash collateral (such as letters of credit).
CY2021	us-gaap	Derivatives Reporting Of Derivative Activity DerivativesReportingOfDerivativeActivity	Settlement gains and losses on electricity swap contracts are recorded on the income statement in operating revenues or purchased power depending on the forecasted position being economically hedged by the derivative contract. Settlement gains and losses on contracts for natural gas are reflected in fuel expense. Settlement gains and losses on diesel derivatives are recorded in other O&M expense.
CY2021Q4	us-gaap	Derivative Fair Value Of Derivative Asset DerivativeFairValueOfDerivativeAsset	11504000	USD
CY2021Q4	us-gaap	Derivative Asset Fair Value Gross Liability DerivativeAssetFairValueGrossLiability	4906000	USD
CY2021Q4	us-gaap	Derivative Fair Value Of Derivative Asset Amount Offset Against Collateral DerivativeFairValueOfDerivativeAssetAmountOffsetAgainstCollateral	6598000	USD
CY2021Q4	us-gaap	Derivative Fair Value Of Derivative Liability DerivativeFairValueOfDerivativeLiability	8670000	USD
CY2021Q4	us-gaap	Derivative Liability Fair Value Gross Asset DerivativeLiabilityFairValueGrossAsset	2923000	USD
CY2021Q4	us-gaap	Derivative Fair Value Of Derivative Liability Amount Offset Against Collateral DerivativeFairValueOfDerivativeLiabilityAmountOffsetAgainstCollateral	5747000	USD
CY2020Q4	us-gaap	Derivative Fair Value Of Derivative Asset DerivativeFairValueOfDerivativeAsset	2263000	USD
CY2020Q4	us-gaap	Derivative Asset Fair Value Gross Liability DerivativeAssetFairValueGrossLiability	268000	USD
CY2020Q4	us-gaap	Derivative Fair Value Of Derivative Asset Amount Offset Against Collateral DerivativeFairValueOfDerivativeAssetAmountOffsetAgainstCollateral	1995000	USD
CY2020Q4	us-gaap	Derivative Fair Value Of Derivative Liability DerivativeFairValueOfDerivativeLiability	893000	USD
CY2020Q4	us-gaap	Derivative Liability Fair Value Gross Asset DerivativeLiabilityFairValueGrossAsset	749000	USD
CY2020Q4	us-gaap	Derivative Fair Value Of Derivative Liability Amount Offset Against Collateral DerivativeFairValueOfDerivativeLiabilityAmountOffsetAgainstCollateral	144000	USD
CY2021Q4	us-gaap	Derivative Net Liability Position Aggregate Fair Value DerivativeNetLiabilityPositionAggregateFairValue	3000000	USD
CY2021Q4	us-gaap	Collateral Already Posted Aggregate Fair Value CollateralAlreadyPostedAggregateFairValue	0	USD
CY2021Q4	us-gaap	Additional Collateral Aggregate Fair Value AdditionalCollateralAggregateFairValue	7600000	USD
CY2020	ida	Fair Value All Levels Transfers Amount FairValueAllLevelsTransfersAmount	0	USD
CY2021Q4	us-gaap	Cash And Cash Equivalents Fair Value Disclosure CashAndCashEquivalentsFairValueDisclosure	80406000	USD
CY2020Q4	us-gaap	Cash And Cash Equivalents Fair Value Disclosure CashAndCashEquivalentsFairValueDisclosure	56048000	USD
CY2021Q4	us-gaap	Derivative Assets DerivativeAssets	6598000	USD
CY2020Q4	us-gaap	Derivative Assets DerivativeAssets	1995000	USD
CY2021Q4	us-gaap	Equity Securities Fv Ni EquitySecuritiesFvNi	54431000	USD
CY2020Q4	us-gaap	Equity Securities Fv Ni EquitySecuritiesFvNi	50733000	USD
CY2021Q4	us-gaap	Derivative Liabilities DerivativeLiabilities	5747000	USD
CY2020Q4	us-gaap	Derivative Liabilities DerivativeLiabilities	144000	USD
CY2021	us-gaap	Regulated And Unregulated Operating Revenue RegulatedAndUnregulatedOperatingRevenue	1458084000	USD
CY2021	us-gaap	Operating Income Loss OperatingIncomeLoss	329651000	USD
CY2021	ida	Other Income Net OtherIncomeNet	21105000	USD
CY2021	us-gaap	Other Interest And Dividend Income OtherInterestAndDividendIncome	7292000	USD
CY2021	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	11435000	USD
CY2021	us-gaap	Interest Expense InterestExpense	86698000	USD
CY2021	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	282784000	USD
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	36912000	USD
CY2021	us-gaap	Net Income Loss NetIncomeLoss	245550000	USD
CY2021Q4	us-gaap	Assets Assets	7210515000	USD
CY2021	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	299999000	USD
CY2020	us-gaap	Regulated And Unregulated Operating Revenue RegulatedAndUnregulatedOperatingRevenue	1350729000	USD
CY2020	us-gaap	Operating Income Loss OperatingIncomeLoss	309521000	USD
CY2020	ida	Other Income Net OtherIncomeNet	22547000	USD
CY2020	us-gaap	Other Interest And Dividend Income OtherInterestAndDividendIncome	10512000	USD
CY2020	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	11513000	USD
CY2020	us-gaap	Interest Expense InterestExpense	87426000	USD
CY2020	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	266668000	USD
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	28700000	USD
CY2020	us-gaap	Net Income Loss NetIncomeLoss	237417000	USD
CY2020Q4	us-gaap	Assets Assets	7095244000	USD
CY2020	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	310938000	USD
CY2019	us-gaap	Regulated And Unregulated Operating Revenue RegulatedAndUnregulatedOperatingRevenue	1346383000	USD
CY2019	us-gaap	Operating Income Loss OperatingIncomeLoss	298326000	USD
CY2019	ida	Other Income Net OtherIncomeNet	20363000	USD
CY2019	us-gaap	Other Interest And Dividend Income OtherInterestAndDividendIncome	13251000	USD
CY2019	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	12370000	USD
CY2019	us-gaap	Interest Expense InterestExpense	86475000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	257835000	USD
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	24507000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	232854000	USD
CY2019Q4	us-gaap	Assets Assets	6641201000	USD
CY2019	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	278705000	USD
CY2021	us-gaap	Investment Income Interest And Dividend InvestmentIncomeInterestAndDividend	1408000	USD
CY2020	us-gaap	Investment Income Interest And Dividend InvestmentIncomeInterestAndDividend	3813000	USD
CY2019	us-gaap	Investment Income Interest And Dividend InvestmentIncomeInterestAndDividend	8181000	USD
CY2021	us-gaap	Interest Income Other InterestIncomeOther	5034000	USD
CY2020	us-gaap	Interest Income Other InterestIncomeOther	7063000	USD
CY2019	us-gaap	Interest Income Other InterestIncomeOther	5494000	USD
CY2021	us-gaap	Defined Benefit Plan Net Periodic Benefit Cost DefinedBenefitPlanNetPeriodicBenefitCost	15249000	USD
CY2020	us-gaap	Defined Benefit Plan Net Periodic Benefit Cost DefinedBenefitPlanNetPeriodicBenefitCost	11865000	USD
CY2019	us-gaap	Defined Benefit Plan Net Periodic Benefit Cost DefinedBenefitPlanNetPeriodicBenefitCost	10976000	USD
CY2021	us-gaap	Insured Event Gain Loss InsuredEventGainLoss	5203000	USD
CY2020	us-gaap	Insured Event Gain Loss InsuredEventGainLoss	4036000	USD
CY2019	us-gaap	Insured Event Gain Loss InsuredEventGainLoss	4104000	USD
CY2021	us-gaap	Other Income OtherIncome	463000	USD
CY2020	us-gaap	Other Income OtherIncome	462000	USD
CY2019	us-gaap	Other Income OtherIncome	-301000	USD
CY2021	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-3141000	USD
CY2020	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	3509000	USD
CY2019	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	6502000	USD
CY2019	us-gaap	Reclassification From Accumulated Other Comprehensive Income Current Period Net Of Tax ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax	-1952000	USD
CY2021	us-gaap	Reclassification From Accumulated Other Comprehensive Income Current Period Net Of Tax ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax	-3343000	USD
CY2020	us-gaap	Reclassification From Accumulated Other Comprehensive Income Current Period Net Of Tax ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax	-2988000	USD
CY2021	dei	Auditor Name AuditorName	DELOITTE & TOUCHE LLP
CY2021	dei	Auditor Location AuditorLocation	Boise, Idaho

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$IDA
IDACORP INC Stock $ida

2021 Q4 Form 10-K Financial Statement

#000105787722000014 Filed on February 17, 2022

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$IDA IDACORP INC Stock $ida

2021 Q4 Form 10-K Financial Statement

#000105787722000014 Filed on February 17, 2022

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$IDA
IDACORP INC Stock $ida