$IDA
IDACORP INC Stock $ida

$ida Overview Financials Valuation SEC Filings Company Website

2024 Q1 Form 10-K Financial Statement

#000105787724000005 Filed on February 15, 2024

Income Statement

Concept	2024 Q1	2023 Q4	2023
Revenue	$417.9M	$412.0M	$1.640B
YoY Change	8.36%	-2.6%	5.24%
Cost Of Revenue	$111.9M	$96.13M	$489.0M
YoY Change	-34.6%	-44.85%	-10.07%
Gross Profit	$337.0M	$315.8M	$1.277B
YoY Change	30.35%	27.02%	16.1%
Gross Profit Margin	80.65%	76.67%	77.91%
Selling, General & Admin
YoY Change
% of Gross Profit
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$55.17M	$53.31M	$199.9M
YoY Change	18.89%	15.34%	15.18%
% of Gross Profit	16.37%	16.88%	15.65%
Operating Expenses	$399.3M	$279.0M	$1.453B
YoY Change	10.45%	45.43%	10.33%
Operating Profit	$49.60M	$36.79M	$313.5M
YoY Change	-27.18%	-35.2%	-4.19%
Interest Expense	-$38.15M	-$35.59M	$116.5M
YoY Change	39.9%	47.84%	30.3%
% of Operating Profit	-76.92%	-96.72%	37.15%
Other Income/Expense, Net	-$6.874M	$28.45M	-$24.29M
YoY Change	37.92%	62.32%	-18.43%
Pretax Income	$42.72M	$29.65M	$289.2M
YoY Change	-32.32%	-40.97%	-2.76%
Income Tax	-$5.546M	-$1.704M	$27.30M
% Of Pretax Income	-12.98%	-5.75%	9.44%
Net Earnings	$48.17M	$31.26M	$261.2M
YoY Change	-14.13%	-25.67%	0.85%
Net Earnings / Revenue	11.53%	7.59%	15.93%
Basic Earnings Per Share	$0.95		$5.15
Diluted Earnings Per Share	$0.95	$0.61	$5.14
COMMON SHARES
Basic Shares Outstanding	50.63M shares	50.62M shares	50.72M shares
Diluted Shares Outstanding	50.79M shares		50.81M shares

Balance Sheet

Concept	2024 Q1	2023 Q4	2023
SHORT-TERM ASSETS
Cash & Short-Term Investments	$157.6M	$327.4M	$327.4M
YoY Change	-55.96%	84.39%	84.39%
Cash & Equivalents	$157.6M	$327.4M	$327.4M
Short-Term Investments
Other Short-Term Assets	$27.00K	$71.00K	$339.7M
YoY Change	-96.86%	-99.82%	47.83%
Inventory	$180.3M	$160.5M	$160.5M
Prepaid Expenses	$20.69M	$22.84M
Receivables	$116.0M	$107.3M	$107.3M
Other Receivables	$44.10M	$69.24M	$69.24M
Total Short-Term Assets	$780.3M	$1.004B	$1.004B
YoY Change	-21.26%	44.75%	44.75%
LONG-TERM ASSETS
Property, Plant & Equipment	$5.846B	$5.745B	$5.745B
YoY Change	10.54%	11.06%	11.06%
Goodwill
YoY Change
Intangibles
YoY Change
Long-Term Investments	$156.3M	$9.897M	$164.0M
YoY Change	29.18%	-4.02%	35.12%
Other Assets	$53.02M	$53.81M	$1.563B
YoY Change	-19.42%	-9.45%	0.47%
Total Long-Term Assets	$7.567B	$7.472B	$7.472B
YoY Change	9.86%	9.08%	9.08%
TOTAL ASSETS
Total Short-Term Assets	$780.3M	$1.004B	$1.004B
Total Long-Term Assets	$7.567B	$7.472B	$7.472B
Total Assets	$8.347B	$8.476B	$8.476B
YoY Change	5.95%	12.36%	12.36%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$199.7M	$308.5M	$308.5M
YoY Change	-1.05%	5.39%	5.39%
Accrued Expenses	$76.45M	$102.9M	$102.9M
YoY Change	19.67%	23.54%	23.54%
Deferred Revenue	$105.6M	$104.3M
YoY Change	20.73%	44.41%
Short-Term Debt	$0.00	$0.00	$0.00
YoY Change
Long-Term Debt Due	$49.80M	$49.80M	$49.80M
YoY Change	-60.16%
Total Short-Term Liabilities	$505.4M	$634.1M	$634.1M
YoY Change	-5.11%	15.59%	15.59%
LONG-TERM LIABILITIES
Long-Term Debt	$2.776B	$2.776B	$2.776B
YoY Change	11.8%	26.51%	26.51%
Other Long-Term Liabilities	$160.9M	$160.0M	$1.269B
YoY Change	32.61%	106.91%	14.08%
Total Long-Term Liabilities	$2.937B	$2.151B	$4.044B
YoY Change	12.77%	8.33%	22.33%
TOTAL LIABILITIES
Total Short-Term Liabilities	$505.4M	$634.1M	$634.1M
Total Long-Term Liabilities	$2.937B	$2.151B	$4.044B
Total Liabilities	$3.442B	$2.785B	$5.568B
YoY Change	9.73%	9.9%	17.57%
SHAREHOLDERS EQUITY
Retained Earnings	$2.042B	$2.036B
YoY Change	4.52%	5.07%
Common Stock	$890.0M	$888.6M
YoY Change	0.9%	0.73%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$2.915B	$2.908B	$2.908B
YoY Change
Total Liabilities & Shareholders Equity	$8.347B	$8.476B	$8.476B
YoY Change	5.95%	12.36%	12.36%

Cashflow Statement

Concept	2024 Q1	2023 Q4	2023
OPERATING ACTIVITIES
Net Income	$48.17M	$31.26M	$261.2M
YoY Change	-14.13%	-25.67%	0.85%
Depreciation, Depletion And Amortization	$55.17M	$53.31M	$199.9M
YoY Change	18.89%	15.34%	15.18%
Cash From Operating Activities	$109.7M	$105.0M	$267.0M
YoY Change	-221.33%	27.6%	-23.99%
INVESTING ACTIVITIES
Capital Expenditures	$260.0M	$183.9M	$611.1M
YoY Change	119.62%	44.47%	41.27%
Acquisitions
YoY Change
Other Investing Activities	-$4.940M	$5.890M	-$2.153M
YoY Change	1.79%	-189.7%	-55.84%
Cash From Investing Activities	-$234.7M	-$178.0M	-$589.9M
YoY Change	114.98%	32.99%	39.05%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net			$3.274M
YoY Change			5.24%
Debt Paid & Issued, Net	$0.00		$225.0M
YoY Change	-100.0%		5060.55%
Cash From Financing Activities	-$44.87M	-45.03M	$472.8M
YoY Change	-111.81%	-1641.0%	1238.69%
NET CHANGE
Cash From Operating Activities	$109.7M	105.0M	$267.0M
Cash From Investing Activities	-$234.7M	-178.0M	-$589.9M
Cash From Financing Activities	-$44.87M	-45.03M	$472.8M
Net Change In Cash	-$169.8M	-118.0M	$149.9M
YoY Change	-194.23%	142.64%	-497.84%
FREE CASH FLOW
Cash From Operating Activities	$109.7M	$105.0M	$267.0M
Capital Expenditures	$260.0M	$183.9M	$611.1M
Free Cash Flow	-$150.3M	-$78.91M	-$344.1M
YoY Change	-28.01%	75.32%	323.24%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2023	us-gaap	Operating Income Loss OperatingIncomeLoss	313477000	usd
CY2021	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	11435000	usd
CY2021	us-gaap	Proceeds From Equity Method Investment Dividends Or Distributions Return Of Capital ProceedsFromEquityMethodInvestmentDividendsOrDistributionsReturnOfCapital	14439000	usd
CY2022	us-gaap	Payments To Acquire Equity Securities Fv Ni PaymentsToAcquireEquitySecuritiesFvNi	45572000	usd
CY2021	us-gaap	Payments To Acquire Equity Securities Fv Ni PaymentsToAcquireEquitySecuritiesFvNi	17186000	usd
CY2023	us-gaap	Debt Securities Held To Maturity Purchase DebtSecuritiesHeldToMaturityPurchase	-1617000	usd
CY2022	us-gaap	Debt Securities Held To Maturity Purchase DebtSecuritiesHeldToMaturityPurchase	-31224000	usd
CY2023	us-gaap	Proceeds From Sale Of Trading Securities Heldforinvestment ProceedsFromSaleOfTradingSecuritiesHeldforinvestment	8921000	usd
CY2023	us-gaap	Proceeds From Equity Method Investment Dividends Or Distributions Return Of Capital ProceedsFromEquityMethodInvestmentDividendsOrDistributionsReturnOfCapital	0	usd
CY2022	us-gaap	Proceeds From Equity Method Investment Dividends Or Distributions Return Of Capital ProceedsFromEquityMethodInvestmentDividendsOrDistributionsReturnOfCapital	8489000	usd
CY2023	us-gaap	Payments To Acquire Equity Securities Fv Ni PaymentsToAcquireEquitySecuritiesFvNi	12235000	usd
CY2023	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2023
CY2023	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2023	dei	Amendment Flag AmendmentFlag	false
CY2023Q4	us-gaap	Derivative Asset Statement Of Financial Position Extensible Enumeration DerivativeAssetStatementOfFinancialPositionExtensibleEnumeration	http://fasb.org/us-gaap/2023#OtherAssetsNoncurrent
CY2023Q4	us-gaap	Derivative Liability Statement Of Financial Position Extensible Enumeration DerivativeLiabilityStatementOfFinancialPositionExtensibleEnumeration	http://fasb.org/us-gaap/2023#OtherLiabilitiesNoncurrent
CY2023	dei	Document Type DocumentType	10-K
CY2023	dei	Document Annual Report DocumentAnnualReport	true
CY2022Q4	us-gaap	Regulatory Assets Current RegulatoryAssetsCurrent	80049000	usd
CY2023	dei	Document Period End Date DocumentPeriodEndDate	2023-12-31
CY2023	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2023	dei	Document Transition Report DocumentTransitionReport	false
CY2023	dei	Entity File Number EntityFileNumber	1-14465
CY2023	dei	Entity Registrant Name EntityRegistrantName	IDACORP, Inc.
CY2023	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	82-0505802
CY2023	dei	Entity Address Address Line1 EntityAddressAddressLine1	1221 W. Idaho Street
CY2023	dei	Entity Address City Or Town EntityAddressCityOrTown	Boise,
CY2023	dei	Entity Address State Or Province EntityAddressStateOrProvince	ID
CY2023	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	83702-5627
CY2023	dei	City Area Code CityAreaCode	(208)
CY2023	dei	Local Phone Number LocalPhoneNumber	388-2200
CY2023	dei	Security12b Title Security12bTitle	Common Stock, without par value
CY2023	dei	Trading Symbol TradingSymbol	IDA
CY2023	dei	Security Exchange Name SecurityExchangeName	NYSE
CY2023	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	Yes
CY2023	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2023	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2023	dei	Entity Interactive Data Current EntityInteractiveDataCurrent	Yes
CY2023	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
CY2023	dei	Entity Small Business EntitySmallBusiness	false
CY2023	dei	Entity Emerging Growth Company EntityEmergingGrowthCompany	false
CY2023	dei	Icfr Auditor Attestation Flag IcfrAuditorAttestationFlag	true
CY2023	dei	Document Fin Stmt Error Correction Flag DocumentFinStmtErrorCorrectionFlag	false
CY2023	dei	Entity Shell Company EntityShellCompany	false
CY2023Q2	dei	Entity Public Float EntityPublicFloat	5170636474	usd
CY2024Q1	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	50628079	shares
CY2023	dei	Auditor Firm AuditorFirmId	34
CY2023	us-gaap	Regulated Operating Revenue Electric Non Nuclear RegulatedOperatingRevenueElectricNonNuclear	1762894000	usd
CY2022	us-gaap	Regulated Operating Revenue Electric Non Nuclear RegulatedOperatingRevenueElectricNonNuclear	1641040000	usd
CY2021	us-gaap	Regulated Operating Revenue Electric Non Nuclear RegulatedOperatingRevenueElectricNonNuclear	1455410000	usd
CY2023	us-gaap	Unregulated Operating Revenue UnregulatedOperatingRevenue	3462000	usd
CY2022	us-gaap	Unregulated Operating Revenue UnregulatedOperatingRevenue	2941000	usd
CY2021	us-gaap	Unregulated Operating Revenue UnregulatedOperatingRevenue	2674000	usd
CY2023	us-gaap	Regulated And Unregulated Operating Revenue RegulatedAndUnregulatedOperatingRevenue	1766356000	usd
CY2022	us-gaap	Regulated And Unregulated Operating Revenue RegulatedAndUnregulatedOperatingRevenue	1643981000	usd
CY2021	us-gaap	Regulated And Unregulated Operating Revenue RegulatedAndUnregulatedOperatingRevenue	1458084000	usd
CY2023	us-gaap	Utilities Operating Expense Purchased Power UtilitiesOperatingExpensePurchasedPower	501531000	usd
CY2022	us-gaap	Utilities Operating Expense Purchased Power UtilitiesOperatingExpensePurchasedPower	544345000	usd
CY2021	us-gaap	Utilities Operating Expense Purchased Power UtilitiesOperatingExpensePurchasedPower	393691000	usd
CY2023	us-gaap	Utilities Operating Expense Fuel Used UtilitiesOperatingExpenseFuelUsed	275405000	usd
CY2022	us-gaap	Utilities Operating Expense Fuel Used UtilitiesOperatingExpenseFuelUsed	230210000	usd
CY2021	us-gaap	Utilities Operating Expense Fuel Used UtilitiesOperatingExpenseFuelUsed	180550000	usd
CY2023	ida	Powercostadjustmentexpensedeferral Powercostadjustmentexpensedeferral	6885000	usd
CY2022	ida	Powercostadjustmentexpensedeferral Powercostadjustmentexpensedeferral	-100659000	usd
CY2021	ida	Powercostadjustmentexpensedeferral Powercostadjustmentexpensedeferral	-49844000	usd
CY2023	us-gaap	Utilities Operating Expense Maintenance And Operations UtilitiesOperatingExpenseMaintenanceAndOperations	399855000	usd
CY2022	us-gaap	Utilities Operating Expense Maintenance And Operations UtilitiesOperatingExpenseMaintenanceAndOperations	399375000	usd
CY2021	us-gaap	Utilities Operating Expense Maintenance And Operations UtilitiesOperatingExpenseMaintenanceAndOperations	361297000	usd
CY2023	ida	Energy Efficiency Programs EnergyEfficiencyPrograms	31948000	usd
CY2022	ida	Energy Efficiency Programs EnergyEfficiencyPrograms	33197000	usd
CY2021	ida	Energy Efficiency Programs EnergyEfficiencyPrograms	29920000	usd
CY2023	us-gaap	Utilities Operating Expense Depreciation And Amortization UtilitiesOperatingExpenseDepreciationAndAmortization	195341000	usd
CY2022	us-gaap	Utilities Operating Expense Depreciation And Amortization UtilitiesOperatingExpenseDepreciationAndAmortization	170077000	usd
CY2021	us-gaap	Utilities Operating Expense Depreciation And Amortization UtilitiesOperatingExpenseDepreciationAndAmortization	175555000	usd
CY2023	us-gaap	Utilities Operating Expense Other UtilitiesOperatingExpenseOther	38550000	usd
CY2022	us-gaap	Utilities Operating Expense Other UtilitiesOperatingExpenseOther	37325000	usd
CY2021	us-gaap	Utilities Operating Expense Other UtilitiesOperatingExpenseOther	34673000	usd
CY2023	us-gaap	Utilities Operating Expense UtilitiesOperatingExpense	1449515000	usd
CY2022	us-gaap	Utilities Operating Expense UtilitiesOperatingExpense	1313870000	usd
CY2021	us-gaap	Utilities Operating Expense UtilitiesOperatingExpense	1125842000	usd
CY2023	us-gaap	Other General Expense OtherGeneralExpense	3364000	usd
CY2022	us-gaap	Other General Expense OtherGeneralExpense	2933000	usd
CY2021	us-gaap	Other General Expense OtherGeneralExpense	2591000	usd
CY2023	us-gaap	Operating Expenses OperatingExpenses	1452879000	usd
CY2022	us-gaap	Operating Expenses OperatingExpenses	1316803000	usd
CY2021	us-gaap	Operating Expenses OperatingExpenses	1128433000	usd
CY2022	us-gaap	Operating Income Loss OperatingIncomeLoss	327178000	usd
CY2021	us-gaap	Operating Income Loss OperatingIncomeLoss	329651000	usd
CY2022	us-gaap	Public Utilities Allowance For Funds Used During Construction Capitalized Cost Of Equity PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity	37285000	usd
CY2021	us-gaap	Public Utilities Allowance For Funds Used During Construction Capitalized Cost Of Equity PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity	31537000	usd
CY2023	us-gaap	Interest Expense Other InterestExpenseOther	20253000	usd
CY2023	us-gaap	Interest Costs Capitalized Adjustment InterestCostsCapitalizedAdjustment	20012000	usd
CY2022	us-gaap	Interest Costs Capitalized Adjustment InterestCostsCapitalizedAdjustment	13914000	usd
CY2023	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	36522000	usd
CY2022	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	10805000	usd
CY2021	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-3141000	usd
CY2023	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-24288000	usd
CY2022	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-29774000	usd
CY2021	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-46867000	usd
CY2023	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	289189000	usd
CY2022	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	297404000	usd
CY2021	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	282784000	usd
CY2023	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	27296000	usd
CY2022	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	37844000	usd
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	36912000	usd
CY2023	us-gaap	Profit Loss ProfitLoss	261893000	usd
CY2022	us-gaap	Profit Loss ProfitLoss	259560000	usd
CY2021	us-gaap	Profit Loss ProfitLoss	245872000	usd
CY2023	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	698000	usd
CY2022	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	578000	usd
CY2021	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	322000	usd
CY2023	us-gaap	Net Income Loss NetIncomeLoss	261195000	usd
CY2022	us-gaap	Net Income Loss NetIncomeLoss	258982000	usd
CY2021	us-gaap	Net Income Loss NetIncomeLoss	245550000	usd
CY2023	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	50717000	shares
CY2022	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	50658000	shares
CY2021	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	50599000	shares
CY2023	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	50806000	shares
CY2022	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	50699000	shares
CY2021	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	50645000	shares
CY2023	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	5.15
CY2022	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	5.11
CY2021	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	4.85
CY2023	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	5.14
CY2022	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	5.11
CY2021	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	4.85
CY2023	us-gaap	Profit Loss ProfitLoss	261893000	usd
CY2022	us-gaap	Profit Loss ProfitLoss	259560000	usd
CY2021	us-gaap	Profit Loss ProfitLoss	245872000	usd
CY2023	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax	-1477000	usd
CY2022	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax	9399000	usd
CY2021	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax	1150000	usd
CY2023	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	4262000	usd
CY2022	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	-27118000	usd
CY2021	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	-3318000	usd
CY2023	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	257631000	usd
CY2022	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	286678000	usd
CY2021	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	249190000	usd
CY2023	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	698000	usd
CY2022	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	578000	usd
CY2021	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	322000	usd
CY2023	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	256933000	usd
CY2022	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	286100000	usd
CY2021	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	248868000	usd
CY2023Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	327429000	usd
CY2022Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	177577000	usd
CY2023Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	4869000	usd
CY2022Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	5034000	usd
CY2023Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	107256000	usd
CY2022Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	114173000	usd
CY2023Q4	us-gaap	Allowance For Doubtful Other Receivables Current AllowanceForDoubtfulOtherReceivablesCurrent	716000	usd
CY2022Q4	us-gaap	Allowance For Doubtful Other Receivables Current AllowanceForDoubtfulOtherReceivablesCurrent	512000	usd
CY2023Q4	us-gaap	Other Receivables OtherReceivables	44661000	usd
CY2022Q4	us-gaap	Other Receivables OtherReceivables	51179000	usd
CY2023Q4	us-gaap	Income Taxes Receivable IncomeTaxesReceivable	24574000	usd
CY2022Q4	us-gaap	Income Taxes Receivable IncomeTaxesReceivable	13734000	usd
CY2023Q4	us-gaap	Unbilled Receivables Current UnbilledReceivablesCurrent	90521000	usd
CY2022Q4	us-gaap	Unbilled Receivables Current UnbilledReceivablesCurrent	84862000	usd
CY2023Q4	us-gaap	Other Inventory Supplies OtherInventorySupplies	140515000	usd
CY2022Q4	us-gaap	Other Inventory Supplies OtherInventorySupplies	92461000	usd
CY2023Q4	us-gaap	Energy Related Inventory Other Fossil Fuel EnergyRelatedInventoryOtherFossilFuel	19952000	usd
CY2022Q4	us-gaap	Energy Related Inventory Other Fossil Fuel EnergyRelatedInventoryOtherFossilFuel	14762000	usd
CY2023Q4	us-gaap	Prepaid Expense Current PrepaidExpenseCurrent	22840000	usd
CY2022Q4	us-gaap	Prepaid Expense Current PrepaidExpenseCurrent	24517000	usd
CY2023Q4	us-gaap	Regulatory Assets Current RegulatoryAssetsCurrent	226235000	usd
CY2023Q4	us-gaap	Other Assets Current OtherAssetsCurrent	71000	usd
CY2022Q4	us-gaap	Other Assets Current OtherAssetsCurrent	40339000	usd
CY2023Q4	us-gaap	Assets Current AssetsCurrent	1004054000	usd
CY2022Q4	us-gaap	Assets Current AssetsCurrent	693653000	usd
CY2023Q4	us-gaap	Long Term Investments LongTermInvestments	163971000	usd
CY2022Q4	us-gaap	Long Term Investments LongTermInvestments	121352000	usd
CY2023Q4	us-gaap	Public Utilities Property Plant And Equipment Plant In Service PublicUtilitiesPropertyPlantAndEquipmentPlantInService	7291532000	usd
CY2022Q4	us-gaap	Public Utilities Property Plant And Equipment Plant In Service PublicUtilitiesPropertyPlantAndEquipmentPlantInService	6828467000	usd
CY2023Q4	us-gaap	Public Utilities Property Plant And Equipment Accumulated Depreciation PublicUtilitiesPropertyPlantAndEquipmentAccumulatedDepreciation	2557744000	usd
CY2022Q4	us-gaap	Public Utilities Property Plant And Equipment Accumulated Depreciation PublicUtilitiesPropertyPlantAndEquipmentAccumulatedDepreciation	2465279000	usd
CY2023Q4	us-gaap	Public Utilities Property Plant And Equipment Net PublicUtilitiesPropertyPlantAndEquipmentNet	4733788000	usd
CY2022Q4	us-gaap	Public Utilities Property Plant And Equipment Net PublicUtilitiesPropertyPlantAndEquipmentNet	4363188000	usd
CY2023Q4	us-gaap	Construction In Progress Gross ConstructionInProgressGross	985502000	usd
CY2022Q4	us-gaap	Construction In Progress Gross ConstructionInProgressGross	785706000	usd
CY2023Q4	us-gaap	Plant Held For Future Use Amount PlantHeldForFutureUseAmount	9511000	usd
CY2022Q4	us-gaap	Plant Held For Future Use Amount PlantHeldForFutureUseAmount	7130000	usd
CY2023Q4	us-gaap	Property Plant And Equipment Other PropertyPlantAndEquipmentOther	16429000	usd
CY2022Q4	us-gaap	Property Plant And Equipment Other PropertyPlantAndEquipmentOther	16946000	usd
CY2023Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	5745230000	usd
CY2022Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	5172970000	usd
CY2023Q4	us-gaap	Life Insurance Corporate Or Bank Owned Amount LifeInsuranceCorporateOrBankOwnedAmount	82038000	usd
CY2022Q4	us-gaap	Life Insurance Corporate Or Bank Owned Amount LifeInsuranceCorporateOrBankOwnedAmount	73944000	usd
CY2023Q4	us-gaap	Regulatory Assets Noncurrent RegulatoryAssetsNoncurrent	1426815000	usd
CY2022Q4	us-gaap	Regulatory Assets Noncurrent RegulatoryAssetsNoncurrent	1421912000	usd
CY2023Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	53810000	usd
CY2022Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	59427000	usd
CY2023Q4	us-gaap	Assets Noncurrent Other Than Noncurrent Investments And Property Plant And Equipment AssetsNoncurrentOtherThanNoncurrentInvestmentsAndPropertyPlantAndEquipment	1562663000	usd
CY2022Q4	us-gaap	Assets Noncurrent Other Than Noncurrent Investments And Property Plant And Equipment AssetsNoncurrentOtherThanNoncurrentInvestmentsAndPropertyPlantAndEquipment	1555283000	usd
CY2023Q4	us-gaap	Assets Assets	8475918000	usd
CY2022Q4	us-gaap	Assets Assets	7543258000	usd
CY2023Q4	us-gaap	Long Term Debt Current LongTermDebtCurrent	49800000	usd
CY2022Q4	us-gaap	Long Term Debt Current LongTermDebtCurrent	0	usd
CY2023Q4	us-gaap	Accounts Payable Current AccountsPayableCurrent	308504000	usd
CY2022Q4	us-gaap	Accounts Payable Current AccountsPayableCurrent	292719000	usd
CY2023Q4	us-gaap	Taxes Payable Current TaxesPayableCurrent	6854000	usd
CY2022Q4	us-gaap	Taxes Payable Current TaxesPayableCurrent	8565000	usd
CY2023Q4	us-gaap	Interest Payable Current InterestPayableCurrent	38292000	usd
CY2022Q4	us-gaap	Interest Payable Current InterestPayableCurrent	24060000	usd
CY2023Q4	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	64645000	usd
CY2022Q4	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	59265000	usd
CY2023Q4	us-gaap	Regulatory Liability Current RegulatoryLiabilityCurrent	7952000	usd
CY2022Q4	us-gaap	Regulatory Liability Current RegulatoryLiabilityCurrent	63957000	usd
CY2023Q4	us-gaap	Contract With Customer Liability Current ContractWithCustomerLiabilityCurrent	104297000	usd
CY2022Q4	us-gaap	Contract With Customer Liability Current ContractWithCustomerLiabilityCurrent	72222000	usd
CY2023Q4	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	53732000	usd
CY2022Q4	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	27777000	usd
CY2023Q4	us-gaap	Liabilities Current LiabilitiesCurrent	634076000	usd
CY2022Q4	us-gaap	Liabilities Current LiabilitiesCurrent	548565000	usd
CY2023Q4	us-gaap	Deferred Income Tax Liabilities Net DeferredIncomeTaxLiabilitiesNet	882724000	usd
CY2022Q4	us-gaap	Deferred Income Tax Liabilities Net DeferredIncomeTaxLiabilitiesNet	873916000	usd
CY2023Q4	us-gaap	Regulatory Liability Noncurrent RegulatoryLiabilityNoncurrent	874601000	usd
CY2022Q4	us-gaap	Regulatory Liability Noncurrent RegulatoryLiabilityNoncurrent	796644000	usd
CY2023Q4	us-gaap	Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent	233965000	usd
CY2022Q4	us-gaap	Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent	238037000	usd
CY2023Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	160019000	usd
CY2022Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	77336000	usd
CY2023Q4	us-gaap	Liabilities Noncurrent LiabilitiesNoncurrent	2151309000	usd
CY2022Q4	us-gaap	Liabilities Noncurrent LiabilitiesNoncurrent	1985933000	usd
CY2023Q4	us-gaap	Long Term Debt LongTermDebt	2775790000	usd
CY2022Q4	us-gaap	Long Term Debt LongTermDebt	2194145000	usd
CY2023Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		usd
CY2022Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		usd
CY2023Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	120000000	shares
CY2022Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	120000000	shares
CY2023Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	50615000	shares
CY2022Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	50562000	shares
CY2023Q4	us-gaap	Common Stock Value CommonStockValue	888615000	usd
CY2022Q4	us-gaap	Common Stock Value CommonStockValue	882189000	usd
CY2023Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	2036138000	usd
CY2022Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	1937972000	usd
CY2023Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-17184000	usd
CY2022Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-12922000	usd
CY2023Q4	us-gaap	Stockholders Equity StockholdersEquity	2907569000	usd
CY2022Q4	us-gaap	Stockholders Equity StockholdersEquity	2807239000	usd
CY2023Q4	us-gaap	Minority Interest MinorityInterest	7174000	usd
CY2022Q4	us-gaap	Minority Interest MinorityInterest	7376000	usd
CY2023Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	2914743000	usd
CY2022Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	2814615000	usd
CY2023Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	8475918000	usd
CY2022Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	7543258000	usd
CY2023	us-gaap	Profit Loss ProfitLoss	261893000	usd
CY2022	us-gaap	Profit Loss ProfitLoss	259560000	usd
CY2021	us-gaap	Profit Loss ProfitLoss	245872000	usd
CY2023	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	199908000	usd
CY2022	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	173555000	usd
CY2021	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	179444000	usd
CY2023	us-gaap	Deferred Income Taxes And Tax Credits DeferredIncomeTaxesAndTaxCredits	39613000	usd
CY2022	us-gaap	Deferred Income Taxes And Tax Credits DeferredIncomeTaxesAndTaxCredits	-511000	usd
CY2021	us-gaap	Deferred Income Taxes And Tax Credits DeferredIncomeTaxesAndTaxCredits	23901000	usd
CY2023	us-gaap	Increase Decrease In Regulatory Assets And Liabilities IncreaseDecreaseInRegulatoryAssetsAndLiabilities	4748000	usd
CY2022	us-gaap	Increase Decrease In Regulatory Assets And Liabilities IncreaseDecreaseInRegulatoryAssetsAndLiabilities	79693000	usd
CY2021	us-gaap	Increase Decrease In Regulatory Assets And Liabilities IncreaseDecreaseInRegulatoryAssetsAndLiabilities	33705000	usd
CY2023	us-gaap	Pension And Other Postretirement Benefit Expense PensionAndOtherPostretirementBenefitExpense	27155000	usd
CY2022	us-gaap	Pension And Other Postretirement Benefit Expense PensionAndOtherPostretirementBenefitExpense	29286000	usd
CY2021	us-gaap	Pension And Other Postretirement Benefit Expense PensionAndOtherPostretirementBenefitExpense	33817000	usd
CY2023	us-gaap	Pension And Other Postretirement Benefit Contributions PensionAndOtherPostretirementBenefitContributions	55337000	usd
CY2022	us-gaap	Pension And Other Postretirement Benefit Contributions PensionAndOtherPostretirementBenefitContributions	44192000	usd
CY2021	us-gaap	Pension And Other Postretirement Benefit Contributions PensionAndOtherPostretirementBenefitContributions	44220000	usd
CY2023	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	12426000	usd
CY2022	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	11511000	usd
CY2021	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	11435000	usd
CY2023	us-gaap	Equity Method Investment Dividends Or Distributions EquityMethodInvestmentDividendsOrDistributions	2950000	usd
CY2022	us-gaap	Equity Method Investment Dividends Or Distributions EquityMethodInvestmentDividendsOrDistributions	11586000	usd
CY2021	us-gaap	Equity Method Investment Dividends Or Distributions EquityMethodInvestmentDividendsOrDistributions	11711000	usd
CY2023	us-gaap	Public Utilities Allowance For Funds Used During Construction Additions PublicUtilitiesAllowanceForFundsUsedDuringConstructionAdditions	43221000	usd
CY2022	us-gaap	Public Utilities Allowance For Funds Used During Construction Additions PublicUtilitiesAllowanceForFundsUsedDuringConstructionAdditions	37285000	usd
CY2021	us-gaap	Public Utilities Allowance For Funds Used During Construction Additions PublicUtilitiesAllowanceForFundsUsedDuringConstructionAdditions	31537000	usd
CY2023	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-8414000	usd
CY2022	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-14892000	usd
CY2021	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-8929000	usd
CY2023	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	17628000	usd
CY2022	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	81545000	usd
CY2021	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	9434000	usd
CY2023	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	-3220000	usd
CY2022	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	-2156000	usd
CY2021	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	-6581000	usd
CY2023	us-gaap	Increase Decrease In Accrued Income Taxes Payable IncreaseDecreaseInAccruedIncomeTaxesPayable	-53243000	usd
CY2022	us-gaap	Increase Decrease In Accrued Income Taxes Payable IncreaseDecreaseInAccruedIncomeTaxesPayable	-11626000	usd
CY2021	us-gaap	Increase Decrease In Accrued Income Taxes Payable IncreaseDecreaseInAccruedIncomeTaxesPayable	991000	usd
CY2023	us-gaap	Increase Decrease In Other Current Assets IncreaseDecreaseInOtherCurrentAssets	81244000	usd
CY2022	us-gaap	Increase Decrease In Other Current Assets IncreaseDecreaseInOtherCurrentAssets	-112602000	usd
CY2021	us-gaap	Increase Decrease In Other Current Assets IncreaseDecreaseInOtherCurrentAssets	-17700000	usd
CY2023	us-gaap	Increase Decrease In Other Current Liabilities IncreaseDecreaseInOtherCurrentLiabilities	-12551000	usd
CY2022	us-gaap	Increase Decrease In Other Current Liabilities IncreaseDecreaseInOtherCurrentLiabilities	-4628000	usd
CY2021	us-gaap	Increase Decrease In Other Current Liabilities IncreaseDecreaseInOtherCurrentLiabilities	-17885000	usd
CY2023	us-gaap	Increase Decrease In Other Noncurrent Assets IncreaseDecreaseInOtherNoncurrentAssets	-10712000	usd
CY2022	us-gaap	Increase Decrease In Other Noncurrent Assets IncreaseDecreaseInOtherNoncurrentAssets	-22951000	usd
CY2021	us-gaap	Increase Decrease In Other Noncurrent Assets IncreaseDecreaseInOtherNoncurrentAssets	4304000	usd
CY2023	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	267027000	usd
CY2022	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	351285000	usd
CY2021	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	363264000	usd
CY2023	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	611137000	usd
CY2022	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	432589000	usd
CY2023	ida	Paymentsreceivedfromtransmissionprojectjointfundingpartners Paymentsreceivedfromtransmissionprojectjointfundingpartners	26501000	usd
CY2022	ida	Paymentsreceivedfromtransmissionprojectjointfundingpartners Paymentsreceivedfromtransmissionprojectjointfundingpartners	17778000	usd
CY2021	ida	Paymentsreceivedfromtransmissionprojectjointfundingpartners Paymentsreceivedfromtransmissionprojectjointfundingpartners	5876000	usd
CY2023	us-gaap	Payments To Acquire Partners Interest In Real Estate Partnership Net Of Cash Acquired PaymentsToAcquirePartnersInterestInRealEstatePartnershipNetOfCashAcquired	2533000	usd
CY2022	us-gaap	Payments To Acquire Partners Interest In Real Estate Partnership Net Of Cash Acquired PaymentsToAcquirePartnersInterestInRealEstatePartnershipNetOfCashAcquired	9881000	usd
CY2021	us-gaap	Payments To Acquire Partners Interest In Real Estate Partnership Net Of Cash Acquired PaymentsToAcquirePartnersInterestInRealEstatePartnershipNetOfCashAcquired	15148000	usd
CY2021	us-gaap	Debt Securities Held To Maturity Purchase DebtSecuritiesHeldToMaturityPurchase	0	usd
CY2022	us-gaap	Proceeds From Sale Of Trading Securities Heldforinvestment ProceedsFromSaleOfTradingSecuritiesHeldforinvestment	63857000	usd
CY2021	us-gaap	Proceeds From Sale Of Trading Securities Heldforinvestment ProceedsFromSaleOfTradingSecuritiesHeldforinvestment	11328000	usd
CY2023	us-gaap	Payments To Acquire Short Term Investments PaymentsToAcquireShortTermInvestments	0	usd
CY2022	us-gaap	Payments To Acquire Short Term Investments PaymentsToAcquireShortTermInvestments	25000000	usd
CY2021	us-gaap	Payments To Acquire Short Term Investments PaymentsToAcquireShortTermInvestments	25000000	usd
CY2023	us-gaap	Proceeds From Maturities Prepayments And Calls Of Shortterm Investments ProceedsFromMaturitiesPrepaymentsAndCallsOfShorttermInvestments	0	usd
CY2022	us-gaap	Proceeds From Maturities Prepayments And Calls Of Shortterm Investments ProceedsFromMaturitiesPrepaymentsAndCallsOfShorttermInvestments	25000000	usd
CY2021	us-gaap	Proceeds From Maturities Prepayments And Calls Of Shortterm Investments ProceedsFromMaturitiesPrepaymentsAndCallsOfShorttermInvestments	50000000	usd
CY2023	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	-2153000	usd
CY2022	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	-4875000	usd
CY2021	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	-2037000	usd
CY2023	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-589947000	usd
CY2022	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-424267000	usd
CY2021	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-273653000	usd
CY2023	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	872000000	usd
CY2022	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	198000000	usd
CY2021	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	0	usd
CY2023	ida	Premium On Issuance Of Long Term Debt PremiumOnIssuanceOfLongTermDebt	-7006000	usd
CY2022	ida	Premium On Issuance Of Long Term Debt PremiumOnIssuanceOfLongTermDebt	0	usd
CY2021	ida	Premium On Issuance Of Long Term Debt PremiumOnIssuanceOfLongTermDebt	0	usd
CY2023	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	225000000	usd
CY2022	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	4360000	usd
CY2021	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	0	usd
CY2023	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	163545000	usd
CY2022	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	154287000	usd
CY2021	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	146119000	usd
CY2023	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	3274000	usd
CY2022	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	3111000	usd
CY2021	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	3031000	usd
CY2023	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-403000	usd
CY2022	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-926000	usd
CY2021	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-334000	usd
CY2023	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	472772000	usd
CY2022	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	35316000	usd
CY2021	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-149484000	usd
CY2023	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	149852000	usd
CY2022	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-37666000	usd
CY2021	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-59873000	usd
CY2022Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	177577000	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
CY2023Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	327429000	usd
CY2023	ida	Maturity Period Of Short Term Investments MaturityPeriodOfShortTermInvestments	P90D
CY2022Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	177577000	usd
CY2021Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	215243000	usd
CY2023	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	6200000	usd
CY2022	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	45885000	usd
CY2021	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	34330000	usd
CY2023	us-gaap	Interest Paid Net InterestPaidNet	97742000	usd
CY2022	us-gaap	Interest Paid Net InterestPaidNet	85985000	usd
CY2021	us-gaap	Interest Paid Net InterestPaidNet	83499000	usd
CY2023	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	185400000	usd
CY2022	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	84324000	usd
CY2021	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	53690000	usd
CY2023	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	3.20
CY2022	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	3.04
CY2021	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	2.88
CY2023Q4	us-gaap	Stockholders Equity StockholdersEquity	2907569000	usd
CY2022Q4	us-gaap	Stockholders Equity StockholdersEquity	2807239000	usd
CY2021Q4	us-gaap	Stockholders Equity StockholdersEquity	2668436000	usd
CY2023	us-gaap	Debt Securities Held To Maturity Purchase DebtSecuritiesHeldToMaturityPurchase	-1617000	usd
CY2023	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 FERC. Idaho Power is the parent of IERCo, a joint-owner of BCC, which mines and supplies coal to the 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 IFS, an investor in affordable housing and other real estate tax credit investments, and Ida-West, an operator of small hydropower generation projects that satisfy the requirements of the PURPA.</span></div>
CY2023	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>
CY2023Q4	ida	Late Payment Fee Customer Billings LatePaymentFeeCustomerBillings	0.01
CY2023	ida	Period Of Time After Which Unpaid Accounts Are Deemed Late PeriodOfTimeAfterWhichUnpaidAccountsAreDeemedLate	P30D
CY2022Q4	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	5034000	usd
CY2021Q4	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	4499000	usd
CY2023	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	3617000	usd
CY2022	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	3265000	usd
CY2023	us-gaap	Allowance For Doubtful Accounts Receivable Write Offs AllowanceForDoubtfulAccountsReceivableWriteOffs	3782000	usd
CY2022	us-gaap	Allowance For Doubtful Accounts Receivable Write Offs AllowanceForDoubtfulAccountsReceivableWriteOffs	2730000	usd
CY2023Q4	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	4869000	usd
CY2022Q4	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	5034000	usd
CY2023Q4	ida	Allowance For Uncollectible Accounts As A Percentage Of Customer Receivables AllowanceForUncollectibleAccountsAsAPercentageOfCustomerReceivables	0.043
CY2022Q4	ida	Allowance For Uncollectible Accounts As A Percentage Of Customer Receivables AllowanceForUncollectibleAccountsAsAPercentageOfCustomerReceivables	0.042
CY2023	ida	Impairment Of Receivables ImpairmentOfReceivables	0	usd
CY2022	ida	Impairment Of Receivables ImpairmentOfReceivables	0	usd
CY2023	us-gaap	Public Utilities Property Plant And Equipment Disclosure Of Composite Depreciation Rate For Plants In Service PublicUtilitiesPropertyPlantAndEquipmentDisclosureOfCompositeDepreciationRateForPlantsInService	0.029
CY2022	us-gaap	Public Utilities Property Plant And Equipment Disclosure Of Composite Depreciation Rate For Plants In Service PublicUtilitiesPropertyPlantAndEquipmentDisclosureOfCompositeDepreciationRateForPlantsInService	0.027
CY2021	us-gaap	Public Utilities Property Plant And Equipment Disclosure Of Composite Depreciation Rate For Plants In Service PublicUtilitiesPropertyPlantAndEquipmentDisclosureOfCompositeDepreciationRateForPlantsInService	0.029
CY2022	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
CY2023	us-gaap	Impairment Of Long Lived Assets Held For Use ImpairmentOfLongLivedAssetsHeldForUse	0	usd
CY2023	us-gaap	Public Utilities Allowance For Funds Used During Construction Rate PublicUtilitiesAllowanceForFundsUsedDuringConstructionRate	0.074
CY2022	us-gaap	Public Utilities Allowance For Funds Used During Construction Rate PublicUtilitiesAllowanceForFundsUsedDuringConstructionRate	0.074
CY2021	us-gaap	Public Utilities Allowance For Funds Used During Construction Rate PublicUtilitiesAllowanceForFundsUsedDuringConstructionRate	0.075
CY2023	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	60583000	usd
CY2022	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	62333000	usd
CY2021	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	59317000	usd
CY2023	ida	Income Tax Reconciliation Afudc IncomeTaxReconciliationAfudc	-13279000	usd
CY2022	ida	Income Tax Reconciliation Afudc IncomeTaxReconciliationAfudc	-10752000	usd
CY2021	ida	Income Tax Reconciliation Afudc IncomeTaxReconciliationAfudc	-9141000	usd
CY2023	ida	Income Tax Reconciliation Capitalized Interest IncomeTaxReconciliationCapitalizedInterest	3097000	usd
CY2022	ida	Income Tax Reconciliation Capitalized Interest IncomeTaxReconciliationCapitalizedInterest	1633000	usd
CY2021	ida	Income Tax Reconciliation Capitalized Interest IncomeTaxReconciliationCapitalizedInterest	1077000	usd
CY2023	us-gaap	Income Tax Reconciliation Tax Credits Investment IncomeTaxReconciliationTaxCreditsInvestment	5451000	usd
CY2022	us-gaap	Income Tax Reconciliation Tax Credits Investment IncomeTaxReconciliationTaxCreditsInvestment	3119000	usd
CY2021	us-gaap	Income Tax Reconciliation Tax Credits Investment IncomeTaxReconciliationTaxCreditsInvestment	2866000	usd
CY2023	ida	Effective Income Tax Rate Reconciliation Removal Costs EffectiveIncomeTaxRateReconciliationRemovalCosts	-6312000	usd
CY2022	ida	Effective Income Tax Rate Reconciliation Removal Costs EffectiveIncomeTaxRateReconciliationRemovalCosts	-4900000	usd
CY2021	ida	Effective Income Tax Rate Reconciliation Removal Costs EffectiveIncomeTaxRateReconciliationRemovalCosts	-3302000	usd
CY2023	ida	Income Tax Reconciliation Capitalized Overhead Costs IncomeTaxReconciliationCapitalizedOverheadCosts	-2100000	usd
CY2022	ida	Income Tax Reconciliation Capitalized Overhead Costs IncomeTaxReconciliationCapitalizedOverheadCosts	-3150000	usd
CY2021	ida	Income Tax Reconciliation Capitalized Overhead Costs IncomeTaxReconciliationCapitalizedOverheadCosts	-8190000	usd
CY2023	ida	Income Tax Reconciliation Capitalized Repair Costs IncomeTaxReconciliationCapitalizedRepairCosts	-24360000	usd
CY2022	ida	Income Tax Reconciliation Capitalized Repair Costs IncomeTaxReconciliationCapitalizedRepairCosts	-19320000	usd
CY2021	ida	Income Tax Reconciliation Capitalized Repair Costs IncomeTaxReconciliationCapitalizedRepairCosts	-17430000	usd
CY2023	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	15802000	usd
CY2022	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	18139000	usd
CY2021	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	11359000	usd
CY2023	us-gaap	Income Tax Reconciliation Nondeductible Expense Depreciation IncomeTaxReconciliationNondeductibleExpenseDepreciation	18041000	usd
CY2022	us-gaap	Income Tax Reconciliation Nondeductible Expense Depreciation IncomeTaxReconciliationNondeductibleExpenseDepreciation	11897000	usd
CY2021	us-gaap	Income Tax Reconciliation Nondeductible Expense Depreciation IncomeTaxReconciliationNondeductibleExpenseDepreciation	14233000	usd
CY2023	ida	Excessdeferredincometaxreversal Excessdeferredincometaxreversal	-10684000	usd
CY2022	ida	Excessdeferredincometaxreversal Excessdeferredincometaxreversal	-11405000	usd
CY2021	ida	Excessdeferredincometaxreversal Excessdeferredincometaxreversal	-8958000	usd
CY2023	ida	Incometaxreturnadjustments Incometaxreturnadjustments	-8229000	usd
CY2022	ida	Incometaxreturnadjustments Incometaxreturnadjustments	-2692000	usd
CY2021	ida	Incometaxreturnadjustments Incometaxreturnadjustments	3169000	usd
CY2023	us-gaap	Income Tax Reconciliation Tax Credits Other IncomeTaxReconciliationTaxCreditsOther	6869000	usd
CY2022	us-gaap	Income Tax Reconciliation Tax Credits Other IncomeTaxReconciliationTaxCreditsOther	6362000	usd
CY2021	us-gaap	Income Tax Reconciliation Tax Credits Other IncomeTaxReconciliationTaxCreditsOther	6245000	usd
CY2023	ida	Effective Income Tax Rate Reconciliation Affordable Housing Investment Distribution EffectiveIncomeTaxRateReconciliationAffordableHousingInvestmentDistribution	-507000	usd
CY2022	ida	Effective Income Tax Rate Reconciliation Affordable Housing Investment Distribution EffectiveIncomeTaxRateReconciliationAffordableHousingInvestmentDistribution	-812000	usd
CY2021	ida	Effective Income Tax Rate Reconciliation Affordable Housing Investment Distribution EffectiveIncomeTaxRateReconciliationAffordableHousingInvestmentDistribution	-1010000	usd
CY2023	ida	Effective Income Tax Rate Reconciliation Affordable Housing Investment Amortization EffectiveIncomeTaxRateReconciliationAffordableHousingInvestmentAmortization	5570000	usd
CY2022	ida	Effective Income Tax Rate Reconciliation Affordable Housing Investment Amortization EffectiveIncomeTaxRateReconciliationAffordableHousingInvestmentAmortization	4355000	usd
CY2021	ida	Effective Income Tax Rate Reconciliation Affordable Housing Investment Amortization EffectiveIncomeTaxRateReconciliationAffordableHousingInvestmentAmortization	4095000	usd
CY2023	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	1994000	usd
CY2022	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	1999000	usd
CY2021	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	804000	usd
CY2023	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	27296000	usd
CY2022	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	37844000	usd
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	36912000	usd
CY2023	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.095
CY2022	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.127
CY2021	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.131
CY2023	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	-13253000	usd
CY2022	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	31668000	usd
CY2021	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	15210000	usd
CY2023	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	5634000	usd
CY2022	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	5474000	usd
CY2021	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	6630000	usd
CY2023	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	-7619000	usd
CY2022	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	37142000	usd
CY2021	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	21840000	usd
CY2023	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-18419000	usd
CY2022	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-13696000	usd
CY2021	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-1787000	usd
CY2023	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-3269000	usd
CY2022	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	4087000	usd
CY2021	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	1154000	usd
CY2023	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-21688000	usd
CY2022	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-9609000	usd
CY2021	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-633000	usd
CY2023	ida	Deferred Investment Tax Credit DeferredInvestmentTaxCredit	55644000	usd
CY2022	ida	Deferred Investment Tax Credit DeferredInvestmentTaxCredit	8945000	usd
CY2021	ida	Deferred Investment Tax Credit DeferredInvestmentTaxCredit	14698000	usd
CY2023	ida	Restored Investment Tax Credit RestoredInvestmentTaxCredit	5451000	usd
CY2022	ida	Restored Investment Tax Credit RestoredInvestmentTaxCredit	3119000	usd
CY2021	ida	Restored Investment Tax Credit RestoredInvestmentTaxCredit	2866000	usd
CY2023	us-gaap	Investment Tax Credit InvestmentTaxCredit	50193000	usd
CY2022	us-gaap	Investment Tax Credit InvestmentTaxCredit	5826000	usd
CY2021	us-gaap	Investment Tax Credit InvestmentTaxCredit	11832000	usd
CY2023	us-gaap	Other Tax Expense Benefit OtherTaxExpenseBenefit	6410000	usd
CY2022	us-gaap	Other Tax Expense Benefit OtherTaxExpenseBenefit	4485000	usd
CY2021	us-gaap	Other Tax Expense Benefit OtherTaxExpenseBenefit	3873000	usd
CY2023	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	27296000	usd
CY2022	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	37844000	usd
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	36912000	usd
CY2023Q4	us-gaap	Deferred Tax Assets Regulatory Assets And Liabilities DeferredTaxAssetsRegulatoryAssetsAndLiabilities	108641000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Regulatory Assets And Liabilities DeferredTaxAssetsRegulatoryAssetsAndLiabilities	94946000	usd
CY2023Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Share Based Compensation Cost DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost	24288000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Share Based Compensation Cost DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost	24495000	usd
CY2023Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Other DeferredTaxAssetsTaxDeferredExpenseOther	58860000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Other DeferredTaxAssetsTaxDeferredExpenseOther	53418000	usd
CY2023Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards DeferredTaxAssetsTaxCreditCarryforwards	52010000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards DeferredTaxAssetsTaxCreditCarryforwards	44727000	usd
CY2023Q4	us-gaap	Deferred Tax Assets Equity Method Investments DeferredTaxAssetsEquityMethodInvestments	12652000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Equity Method Investments DeferredTaxAssetsEquityMethodInvestments	15259000	usd
CY2023Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Pensions DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsPensions	44803000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Pensions DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsPensions	38687000	usd
CY2023Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	26537000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	19657000	usd
CY2023Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	327791000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	291189000	usd
CY2023Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	266992000	usd
CY2022Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	249452000	usd
CY2023Q4	us-gaap	Deferred Tax Liabilities Regulatory Assets And Liabilities DeferredTaxLiabilitiesRegulatoryAssetsAndLiabilities	774672000	usd
CY2022Q4	us-gaap	Deferred Tax Liabilities Regulatory Assets And Liabilities DeferredTaxLiabilitiesRegulatoryAssetsAndLiabilities	739689000	usd
CY2023Q4	us-gaap	Deferred Tax Liabilities Regulatory Assets DeferredTaxLiabilitiesRegulatoryAssets	29742000	usd
CY2022Q4	us-gaap	Deferred Tax Liabilities Regulatory Assets DeferredTaxLiabilitiesRegulatoryAssets	33116000	usd
CY2023Q4	us-gaap	Deferred Tax Liabilities Investment In Noncontrolled Affiliates DeferredTaxLiabilitiesInvestmentInNoncontrolledAffiliates	3593000	usd
CY2022Q4	us-gaap	Deferred Tax Liabilities Investment In Noncontrolled Affiliates DeferredTaxLiabilitiesInvestmentInNoncontrolledAffiliates	3355000	usd
CY2023Q4	ida	Deferred Tax Liabilities Prepaid Pension Cost DeferredTaxLiabilitiesPrepaidPensionCost	94231000	usd
CY2022Q4	ida	Deferred Tax Liabilities Prepaid Pension Cost DeferredTaxLiabilitiesPrepaidPensionCost	80777000	usd
CY2023Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	41285000	usd
CY2022Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	58716000	usd
CY2023Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	1210515000	usd
CY2022Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	1165105000	usd
CY2023Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	882724000	usd
CY2022Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	873916000	usd
CY2021Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	0	usd
CY2022Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	0	usd
CY2023Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	0	usd
CY2023Q4	us-gaap	Regulatory Assets RegulatoryAssets	1653050000	usd
CY2022Q4	us-gaap	Regulatory Assets RegulatoryAssets	1501961000	usd
CY2023Q4	us-gaap	Regulatory Liabilities RegulatoryLiabilities	882553000	usd
CY2022Q4	us-gaap	Regulatory Liabilities RegulatoryLiabilities	860601000	usd
CY2023Q2	ida	Annualfixedcostadjustmentmechanismdeferral Annualfixedcostadjustmentmechanismdeferral	25100000	usd
CY2022Q2	ida	Annualfixedcostadjustmentmechanismdeferral Annualfixedcostadjustmentmechanismdeferral	35200000	usd
CY2021Q2	ida	Annualfixedcostadjustmentmechanismdeferral Annualfixedcostadjustmentmechanismdeferral	38300000	usd
CY2023	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	1639612000	usd
CY2022	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	1557974000	usd
CY2021	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	1382653000	usd
CY2023	us-gaap	Regulated Operating Revenue Other RegulatedOperatingRevenueOther	123282000	usd
CY2022	us-gaap	Regulated Operating Revenue Other RegulatedOperatingRevenueOther	83066000	usd
CY2021	us-gaap	Regulated Operating Revenue Other RegulatedOperatingRevenueOther	72757000	usd
CY2023	us-gaap	Regulated Operating Revenue Electric Non Nuclear RegulatedOperatingRevenueElectricNonNuclear	1762894000	usd
CY2022	us-gaap	Regulated Operating Revenue Electric Non Nuclear RegulatedOperatingRevenueElectricNonNuclear	1641040000	usd
CY2021	us-gaap	Regulated Operating Revenue Electric Non Nuclear RegulatedOperatingRevenueElectricNonNuclear	1455410000	usd
CY2023	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	1639612000	usd
CY2022	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	1557974000	usd
CY2021	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	1382653000	usd
CY2023	us-gaap	Regulated Operating Revenue Other RegulatedOperatingRevenueOther	123282000	usd
CY2022	us-gaap	Regulated Operating Revenue Other RegulatedOperatingRevenueOther	83066000	usd
CY2021	us-gaap	Regulated Operating Revenue Other RegulatedOperatingRevenueOther	72757000	usd
CY2023Q4	us-gaap	Secured Debt SecuredDebt	2645000000	usd
CY2022Q4	us-gaap	Secured Debt SecuredDebt	1848000000	usd
CY2023Q4	us-gaap	Longterm Pollution Control Bond Current And Noncurrent LongtermPollutionControlBondCurrentAndNoncurrent	166100000	usd
CY2022Q4	us-gaap	Longterm Pollution Control Bond Current And Noncurrent LongtermPollutionControlBondCurrentAndNoncurrent	166100000	usd
CY2023Q4	ida	American Falls Bond Guarantee AmericanFallsBondGuarantee	19885000	usd
CY2022Q4	ida	American Falls Bond Guarantee AmericanFallsBondGuarantee	19885000	usd
CY2023Q4	us-gaap	Debt Instrument Unamortized Discount Premium And Debt Issuance Costs Net DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet	-5395000	usd
CY2022Q4	us-gaap	Debt Instrument Unamortized Discount Premium And Debt Issuance Costs Net DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet	10160000	usd
CY2023Q4	us-gaap	Debt Longterm And Shortterm Combined Amount DebtLongtermAndShorttermCombinedAmount	2825590000	usd
CY2022Q4	us-gaap	Debt Longterm And Shortterm Combined Amount DebtLongtermAndShorttermCombinedAmount	2194145000	usd
CY2023Q4	us-gaap	Secured Debt Current SecuredDebtCurrent	49800000	usd
CY2022Q4	us-gaap	Secured Debt Current SecuredDebtCurrent	0	usd
CY2023Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	2775790000	usd
CY2022Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	2194145000	usd
CY2023Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Next Twelve Months LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths	49800000	usd
CY2023Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Two LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo	19885000	usd
CY2023Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Three LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree	116300000	usd
CY2023Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Four LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour	0	usd
CY2023Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive	0	usd
CY2023Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal After Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive	2645000000	usd
CY2022Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	50561892	shares
CY2021Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	50516479	shares
CY2020Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	50461885	shares
CY2023Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	50615237	shares
CY2022Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	50561892	shares
CY2021Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	50516479	shares
CY2023	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod	75295	shares
CY2022	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod	73131	shares
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod	76147	shares
CY2023	us-gaap	Stock Issued During Period Shares New Issues StockIssuedDuringPeriodSharesNewIssues	53345	shares
CY2022	us-gaap	Stock Issued During Period Shares New Issues StockIssuedDuringPeriodSharesNewIssues	45413	shares
CY2021	us-gaap	Stock Issued During Period Shares New Issues StockIssuedDuringPeriodSharesNewIssues	54594	shares
CY2023	ida	Registered Public Offering Initial Common Shares Offered RegisteredPublicOfferingInitialCommonSharesOffered	2801724	shares
CY2023	ida	Registered Public Offering Price Per Share RegisteredPublicOfferingPricePerShare	92.80
CY2023	ida	Registered Public Offering Issuance Amount RegisteredPublicOfferingIssuanceAmount	260000000.0	usd
CY2023	ida	Registered Public Offering Initial Common Shares Offered Greenshoe RegisteredPublicOfferingInitialCommonSharesOfferedGreenshoe	420258	shares
CY2023	ida	Registered Public Offering Issuance Amount Greenshoe RegisteredPublicOfferingIssuanceAmountGreenshoe	39000000.0	usd
CY2023	ida	Registered Public Offering Initial Common Shares Offered Total RegisteredPublicOfferingInitialCommonSharesOfferedTotal	3221982	shares
CY2023	ida	Initial Forward Sale Price Per Share InitialForwardSalePricePerShare	90.016
CY2023Q4	ida	Common Shares To Deliver To Settle Forward Sales Agreement Gross CommonSharesToDeliverToSettleForwardSalesAgreementGross	3221982	shares
CY2023Q4	ida	Cash Received On Settlement Of Forward Sale Agreement CashReceivedOnSettlementOfForwardSaleAgreement	291900000	usd
CY2023Q4	ida	Cash To Deliver To Settle Forward Sales Agreement Net CashToDeliverToSettleForwardSalesAgreementNet	23900000	usd
CY2023Q4	ida	Common Shares To Deliver To Settle Forward Sales Agreement Net CommonSharesToDeliverToSettleForwardSalesAgreementNet	200000	shares
CY2023	ida	Incremental Common Shares Attributable To Share Based Payment Arrangements Forward Sale Agreement IncrementalCommonSharesAttributableToShareBasedPaymentArrangementsForwardSaleAgreement	34131	shares
CY2022	us-gaap	Net Income Loss NetIncomeLoss	258982000	usd
CY2021	us-gaap	Net Income Loss NetIncomeLoss	245550000	usd
CY2023	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	50717000	shares
CY2022	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	50658000	shares
CY2021	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	50599000	shares
CY2023	us-gaap	Employee Service Share Based Compensation Allocation Of Recognized Period Costs Capitalized Amount EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount	0	usd
CY2023	us-gaap	Net Income Loss NetIncomeLoss	261195000	usd
CY2023	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	89000	shares
CY2022	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	41000	shares
CY2021	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	46000	shares
CY2023	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	50806000	shares
CY2022	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	50699000	shares
CY2021	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	50645000	shares
CY2023	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	5.15
CY2022	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	5.11
CY2021	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	4.85
CY2023	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	5.14
CY2022	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	5.11
CY2021	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	4.85
CY2023	ida	Incremental Common Shares Attributable To Share Based Payment Arrangements Forward Sale Agreement IncrementalCommonSharesAttributableToShareBasedPaymentArrangementsForwardSaleAgreement	34131	shares
CY2023	us-gaap	Guarantees Indemnifications And Warranties Policies GuaranteesIndemnificationsAndWarrantiesPolicies	<div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">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, 2023, 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.</span></div>
CY2023	ida	Fair Value All Levels Transfers Amount FairValueAllLevelsTransfersAmount	0	usd
CY2022	ida	Fair Value All Levels Transfers Amount FairValueAllLevelsTransfersAmount	0	usd
CY2023	us-gaap	Defined Benefit Plan Contributions By Employer DefinedBenefitPlanContributionsByEmployer	9800000	usd
CY2022	us-gaap	Defined Benefit Plan Contributions By Employer DefinedBenefitPlanContributionsByEmployer	8800000	usd
CY2021	us-gaap	Defined Benefit Plan Contributions By Employer DefinedBenefitPlanContributionsByEmployer	8200000	usd
CY2022Q4	us-gaap	Supplemental Unemployment Benefits Disability Related Benefits SupplementalUnemploymentBenefitsDisabilityRelatedBenefits	3000000	usd
CY2023Q4	us-gaap	Supplemental Unemployment Benefits Disability Related Benefits SupplementalUnemploymentBenefitsDisabilityRelatedBenefits	3000000	usd
CY2022Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	37557000	usd
CY2021Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	36698000	usd
CY2023Q4	us-gaap	Public Utilities Property Plant And Equipment Generation Or Processing PublicUtilitiesPropertyPlantAndEquipmentGenerationOrProcessing	2794534000	usd
CY2022Q4	us-gaap	Public Utilities Property Plant And Equipment Generation Or Processing PublicUtilitiesPropertyPlantAndEquipmentGenerationOrProcessing	2700494000	usd
CY2023Q4	us-gaap	Public Utilities Property Plant And Equipment Transmission PublicUtilitiesPropertyPlantAndEquipmentTransmission	1392338000	usd
CY2022Q4	us-gaap	Public Utilities Property Plant And Equipment Transmission PublicUtilitiesPropertyPlantAndEquipmentTransmission	1346463000	usd
CY2023Q4	us-gaap	Public Utilities Property Plant And Equipment Distribution PublicUtilitiesPropertyPlantAndEquipmentDistribution	2454458000	usd
CY2022Q4	us-gaap	Public Utilities Property Plant And Equipment Distribution PublicUtilitiesPropertyPlantAndEquipmentDistribution	2192135000	usd
CY2023Q4	us-gaap	Public Utilities Property Plant And Equipment Other Property Plant And Equipment PublicUtilitiesPropertyPlantAndEquipmentOtherPropertyPlantAndEquipment	650202000	usd
CY2022Q4	us-gaap	Public Utilities Property Plant And Equipment Other Property Plant And Equipment PublicUtilitiesPropertyPlantAndEquipmentOtherPropertyPlantAndEquipment	589375000	usd
CY2023Q4	us-gaap	Public Utilities Property Plant And Equipment Plant In Service PublicUtilitiesPropertyPlantAndEquipmentPlantInService	7291532000	usd
CY2022Q4	us-gaap	Public Utilities Property Plant And Equipment Plant In Service PublicUtilitiesPropertyPlantAndEquipmentPlantInService	6828467000	usd
CY2023Q4	us-gaap	Public Utilities Property Plant And Equipment Accumulated Depreciation PublicUtilitiesPropertyPlantAndEquipmentAccumulatedDepreciation	2557744000	usd
CY2022Q4	us-gaap	Public Utilities Property Plant And Equipment Accumulated Depreciation PublicUtilitiesPropertyPlantAndEquipmentAccumulatedDepreciation	2465279000	usd
CY2023Q4	us-gaap	Public Utilities Property Plant And Equipment Net PublicUtilitiesPropertyPlantAndEquipmentNet	4733788000	usd
CY2022Q4	us-gaap	Public Utilities Property Plant And Equipment Net PublicUtilitiesPropertyPlantAndEquipmentNet	4363188000	usd
CY2023	us-gaap	Asset Retirement Obligation Revision Of Estimate AssetRetirementObligationRevisionOfEstimate	11300000	usd
CY2023	us-gaap	Asset Retirement Obligation Accretion Expense AssetRetirementObligationAccretionExpense	1176000	usd
CY2022	us-gaap	Asset Retirement Obligation Accretion Expense AssetRetirementObligationAccretionExpense	1106000	usd
CY2023	us-gaap	Asset Retirement Obligation Revision Of Estimate AssetRetirementObligationRevisionOfEstimate	11348000	usd
CY2022	us-gaap	Asset Retirement Obligation Revision Of Estimate AssetRetirementObligationRevisionOfEstimate	1412000	usd
CY2023	us-gaap	Asset Retirement Obligation Liabilities Settled AssetRetirementObligationLiabilitiesSettled	1084000	usd
CY2022	us-gaap	Asset Retirement Obligation Liabilities Settled AssetRetirementObligationLiabilitiesSettled	1659000	usd
CY2023Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	48997000	usd
CY2022Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	37557000	usd
CY2023Q4	us-gaap	Real Estate Investments Unconsolidated Real Estate And Other Joint Ventures RealEstateInvestmentsUnconsolidatedRealEstateAndOtherJointVentures	57286000	usd
CY2022Q4	us-gaap	Real Estate Investments Unconsolidated Real Estate And Other Joint Ventures RealEstateInvestmentsUnconsolidatedRealEstateAndOtherJointVentures	29454000	usd
CY2023Q4	us-gaap	Equity Method Investments EquityMethodInvestments	9897000	usd
CY2022Q4	us-gaap	Equity Method Investments EquityMethodInvestments	10311000	usd
CY2023Q4	us-gaap	Other Investments OtherInvestments	3751000	usd
CY2022Q4	us-gaap	Other Investments OtherInvestments	2796000	usd
CY2023Q4	us-gaap	Investments Investments	163971000	usd
CY2022Q4	us-gaap	Investments Investments	121352000	usd
CY2023	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	12426000	usd
CY2022	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	11511000	usd
CY2021	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	11435000	usd
CY2023	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><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">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 </span></div>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).
CY2023	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.
CY2023Q4	us-gaap	Derivative Net Liability Position Aggregate Fair Value DerivativeNetLiabilityPositionAggregateFairValue	63900000	usd
CY2023Q4	us-gaap	Collateral Already Posted Aggregate Fair Value CollateralAlreadyPostedAggregateFairValue	53300000	usd
CY2023Q4	us-gaap	Additional Collateral Aggregate Fair Value AdditionalCollateralAggregateFairValue	14200000	usd
CY2023Q4	us-gaap	Derivative Fair Value Of Derivative Asset DerivativeFairValueOfDerivativeAsset	2199000	usd
CY2023Q4	us-gaap	Derivative Asset Fair Value Gross Liability DerivativeAssetFairValueGrossLiability	2110000	usd
CY2023Q4	us-gaap	Derivative Fair Value Of Derivative Asset Amount Offset Against Collateral DerivativeFairValueOfDerivativeAssetAmountOffsetAgainstCollateral	89000	usd
CY2023Q4	us-gaap	Derivative Fair Value Of Derivative Liability DerivativeFairValueOfDerivativeLiability	46358000	usd
CY2023Q4	us-gaap	Derivative Liability Fair Value Gross Asset DerivativeLiabilityFairValueGrossAsset	40426000	usd
CY2023Q4	us-gaap	Derivative Fair Value Of Derivative Liability Amount Offset Against Collateral DerivativeFairValueOfDerivativeLiabilityAmountOffsetAgainstCollateral	5932000	usd
CY2022Q4	us-gaap	Derivative Fair Value Of Derivative Asset DerivativeFairValueOfDerivativeAsset	74346000	usd
CY2022Q4	us-gaap	Derivative Asset Fair Value Gross Liability DerivativeAssetFairValueGrossLiability	33428000	usd
CY2022Q4	us-gaap	Derivative Fair Value Of Derivative Asset Amount Offset Against Collateral DerivativeFairValueOfDerivativeAssetAmountOffsetAgainstCollateral	40918000	usd
CY2022Q4	us-gaap	Derivative Fair Value Of Derivative Liability DerivativeFairValueOfDerivativeLiability	21589000	usd
CY2022Q4	us-gaap	Derivative Liability Fair Value Gross Asset DerivativeLiabilityFairValueGrossAsset	14801000	usd
CY2022Q4	us-gaap	Derivative Fair Value Of Derivative Liability Amount Offset Against Collateral DerivativeFairValueOfDerivativeLiabilityAmountOffsetAgainstCollateral	6788000	usd
CY2023Q4	us-gaap	Derivative Liability Collateral Right To Reclaim Cash Offset DerivativeLiabilityCollateralRightToReclaimCashOffset	36600000	usd
CY2022Q4	us-gaap	Derivative Asset Collateral Obligation To Return Cash Offset DerivativeAssetCollateralObligationToReturnCashOffset	18600000	usd
CY2022	ida	Fair Value All Levels Transfers Amount FairValueAllLevelsTransfersAmount	0	usd
CY2023Q4	us-gaap	Cash And Cash Equivalents Fair Value Disclosure CashAndCashEquivalentsFairValueDisclosure	32472000	usd
CY2022Q4	us-gaap	Cash And Cash Equivalents Fair Value Disclosure CashAndCashEquivalentsFairValueDisclosure	16505000	usd
CY2023Q4	us-gaap	Derivative Assets DerivativeAssets	89000	usd
CY2022Q4	us-gaap	Derivative Assets DerivativeAssets	40918000	usd
CY2023Q4	us-gaap	Equity Securities Fv Ni EquitySecuritiesFvNi	37320000	usd
CY2022Q4	us-gaap	Equity Securities Fv Ni EquitySecuritiesFvNi	34129000	usd
CY2023Q4	us-gaap	Derivative Liabilities DerivativeLiabilities	5932000	usd
CY2022Q4	us-gaap	Derivative Liabilities DerivativeLiabilities	6788000	usd
CY2023	us-gaap	Regulated And Unregulated Operating Revenue RegulatedAndUnregulatedOperatingRevenue	1766356000	usd
CY2023	us-gaap	Operating Income Loss OperatingIncomeLoss	313477000	usd
CY2023	ida	Other Income Net OtherIncomeNet	51378000	usd
CY2023	us-gaap	Other Interest And Dividend Income OtherInterestAndDividendIncome	28365000	usd
CY2023	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	12426000	usd
CY2023	us-gaap	Interest Expense InterestExpense	116457000	usd
CY2023	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	289189000	usd
CY2023	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	27296000	usd
CY2023	us-gaap	Net Income Loss NetIncomeLoss	261195000	usd
CY2023Q4	us-gaap	Assets Assets	8475918000	usd
CY2023	us-gaap	Segment Expenditure Addition To Long Lived Assets SegmentExpenditureAdditionToLongLivedAssets	611137000	usd
CY2022	us-gaap	Regulated And Unregulated Operating Revenue RegulatedAndUnregulatedOperatingRevenue	1643981000	usd
CY2022	us-gaap	Operating Income Loss OperatingIncomeLoss	327178000	usd
CY2022	ida	Other Income Net OtherIncomeNet	33689000	usd
CY2022	us-gaap	Other Interest And Dividend Income OtherInterestAndDividendIncome	14401000	usd
CY2022	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	11511000	usd
CY2022	us-gaap	Interest Expense InterestExpense	89375000	usd
CY2022	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	297404000	usd
CY2022	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	37844000	usd
CY2022	us-gaap	Net Income Loss NetIncomeLoss	258982000	usd
CY2022Q4	us-gaap	Assets Assets	7543258000	usd
CY2022	us-gaap	Segment Expenditure Addition To Long Lived Assets SegmentExpenditureAdditionToLongLivedAssets	432589000	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	Segment Expenditure Addition To Long Lived Assets SegmentExpenditureAdditionToLongLivedAssets	299999000	usd
CY2023	us-gaap	Investment Income Interest And Dividend InvestmentIncomeInterestAndDividend	15266000	usd
CY2022	us-gaap	Investment Income Interest And Dividend InvestmentIncomeInterestAndDividend	5952000	usd
CY2021	us-gaap	Investment Income Interest And Dividend InvestmentIncomeInterestAndDividend	1408000	usd
CY2023	us-gaap	Interest Income Other InterestIncomeOther	13099000	usd
CY2022	us-gaap	Interest Income Other InterestIncomeOther	7032000	usd
CY2021	us-gaap	Interest Income Other InterestIncomeOther	5034000	usd
CY2023	us-gaap	Defined Benefit Plan Net Periodic Benefit Cost DefinedBenefitPlanNetPeriodicBenefitCost	6513000	usd
CY2022	us-gaap	Defined Benefit Plan Net Periodic Benefit Cost DefinedBenefitPlanNetPeriodicBenefitCost	9196000	usd
CY2021	us-gaap	Defined Benefit Plan Net Periodic Benefit Cost DefinedBenefitPlanNetPeriodicBenefitCost	15249000	usd
CY2023	us-gaap	Insured Event Gain Loss InsuredEventGainLoss	8384000	usd
CY2022	us-gaap	Insured Event Gain Loss InsuredEventGainLoss	7107000	usd
CY2021	us-gaap	Insured Event Gain Loss InsuredEventGainLoss	5203000	usd
CY2023	us-gaap	Other Income OtherIncome	6286000	usd
CY2022	us-gaap	Other Income OtherIncome	-90000	usd
CY2021	us-gaap	Other Income OtherIncome	463000	usd
CY2023	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	36522000	usd
CY2022	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	10805000	usd
CY2021	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-3141000	usd
CY2023	us-gaap	Reclassification From Accumulated Other Comprehensive Income Current Period Net Of Tax ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax	-586000	usd
CY2022	us-gaap	Reclassification From Accumulated Other Comprehensive Income Current Period Net Of Tax ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax	-3348000	usd
CY2021	us-gaap	Reclassification From Accumulated Other Comprehensive Income Current Period Net Of Tax ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax	-3343000	usd
CY2023	dei	Auditor Name AuditorName	DELOITTE & TOUCHE LLP
CY2023	dei	Auditor Location AuditorLocation	Boise, Idaho
CY2023Q4	ecd	Rule10b51 Arr Adopted Flag Rule10b51ArrAdoptedFlag	false
CY2023Q4	ecd	Non Rule10b51 Arr Adopted Flag NonRule10b51ArrAdoptedFlag	false
CY2023Q4	ecd	Rule10b51 Arr Trmntd Flag Rule10b51ArrTrmntdFlag	false
CY2023Q4	ecd	Non Rule10b51 Arr Trmntd Flag NonRule10b51ArrTrmntdFlag	false
CY2021	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	299999000	usd

Files In Submission

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$IDA
IDACORP INC Stock $ida

2024 Q1 Form 10-K Financial Statement

#000105787724000005 Filed on February 15, 2024

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$IDA IDACORP INC Stock $ida

2024 Q1 Form 10-K Financial Statement

#000105787724000005 Filed on February 15, 2024

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$IDA
IDACORP INC Stock $ida