XML 147 R121.htm IDEA: XBRL DOCUMENT
v3.25.0.1

Variable Interest Entities - Additional Information (Details) $ in Thousands | 12 Months Ended |
--- | --- | ---
Dec. 31, 2024 USD ($) lease | Dec. 31, 2023 USD ($) | Dec. 31, 2022 USD ($) | Dec. 31, 1986 numberOfTrust
Palo Verde Sale Leaseback Variable Interest Entities |  |  |  |
Net income attributable to noncontrolling interest | $ 17,224 | $ 17,224 | $ 17,224 |
Variable Interest Entity |  |  |  |
Palo Verde Sale Leaseback Variable Interest Entities |  |  |  |
Net income attributable to noncontrolling interest | 5,000 | 0 | 0 |
Variable Interest Entity | Pinnacle West Captive Insurance Cell |  |  |  |
Palo Verde Sale Leaseback Variable Interest Entities |  |  |  |
Special use fund | 34,000 | 5,000 |  |
Arizona Public Service Company |  |  |  |
Palo Verde Sale Leaseback Variable Interest Entities |  |  |  |
Net income attributable to noncontrolling interest | 17,224 | 17,224 | 17,224 |
Arizona Public Service Company | Variable Interest Entity |  |  |  |
Palo Verde Sale Leaseback Variable Interest Entities |  |  |  |
Net income attributable to noncontrolling interest | 17,000 | $ 17,000 | $ 17,000 |
Number of Vie lessor trusts | numberOfTrust |  |  |  | 3
Initial loss exposure to the VIEs noncontrolling equity participants during lease extension period | 345,000 |  |  |
Arizona Public Service Company | Variable Interest Entity | Maximum |  |  |  |
Palo Verde Sale Leaseback Variable Interest Entities |  |  |  |
Maximum loss exposure to the VIE's noncontrolling equity participants during lease extension period (up to) | $ 501,000 |  |  |
Arizona Public Service Company | Sale Leaseback Transaction Period Through 2033 | Variable Interest Entity |  |  |  |
Palo Verde Sale Leaseback Variable Interest Entities |  |  |  |
Number of leases under which assets are retained | lease | 3 |  |  |
Annual lease payments | $ 21,000 |  |  |
Arizona Public Service Company | Sale Leaseback Transaction Period Through 2033 | Variable Interest Entity | Maximum |  |  |  |
Palo Verde Sale Leaseback Variable Interest Entities |  |  |  |
Lease period (up to) | 2 years |  |  |

X
- Definition Annual Rental Payments, Sale Leaseback Transaction + References No definition available. + Details
Name: | pnw_AnnualRentalPaymentsSaleLeasebackTransaction
Namespace Prefix: | pnw_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Number of VIE lessor trusts with whom agreements have been made to sell and lease back interests in certain nuclear generating assets and related common facilities. + References No definition available. + Details
Name: | pnw_NumberOfVieLessorTrusts
Namespace Prefix: | pnw_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Represents the period of lease entered into in connection with the transaction involving the sale of property to another party and the lease of the property back to the seller. + References No definition available. + Details
Name: | pnw_SaleLeasebackTransactionLeasePeriod
Namespace Prefix: | pnw_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Represents the number of leases under which assets are retained through a specified period. + References No definition available. + Details
Name: | pnw_SaleLeasebackTransactionNumberOfLeasesUnderWhichAssetsRetainedThroughSpecifiedPeriod
Namespace Prefix: | pnw_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Variable Interest Entity, Entity Initial Loss Exposure To Noncontrolling Interests During Lease Extension Period, Amount + References No definition available. + Details
Name: | pnw_VariableInterestEntityEntityInitialLossExposureToNoncontrollingInterestsDuringLeaseExtensionPeriodAmount
Namespace Prefix: | pnw_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Variable Interest Entity, Entity Loss Exposure to Noncontrolling Interests During Lease Extension Period, Amount + References No definition available. + Details
Name: | pnw_VariableInterestEntityEntityLossExposureToNoncontrollingInterestsDuringLeaseExtensionPeriodAmount
Namespace Prefix: | pnw_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount of investment in equity method investee and investment in and advance to affiliate. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(18)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1 + Details
Name: | us-gaap_InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of Net Income (Loss) attributable to noncontrolling interest. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 250 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Publisher FASB -URI https://asc.fasb.org/1943274/2147483443/250-10-50-6 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 250 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 9 -Publisher FASB -URI https://asc.fasb.org/1943274/2147483443/250-10-50-9 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 250 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 8 -Publisher FASB -URI https://asc.fasb.org/1943274/2147483443/250-10-50-8 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 944 -SubTopic 220 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-04(17)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147477250/944-220-S99-1 Reference 5: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 220 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482765/220-10-50-6 Reference 6: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 810 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 1A -Subparagraph (a)(2) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481203/810-10-50-1A Reference 7: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 55 -Paragraph 4J -Publisher FASB -URI https://asc.fasb.org/1943274/2147481175/810-10-55-4J Reference 8: http://www.xbrl.org/2003/role/disclosureRef -Topic 220 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 1A -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482790/220-10-45-1A Reference 9: http://www.xbrl.org/2003/role/disclosureRef -Topic 220 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 1B -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482790/220-10-45-1B + Details
Name: | us-gaap_NetIncomeLossAttributableToNoncontrollingInterest
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 810 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481203/810-10-50-3 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 810 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 25 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481231/810-10-45-25 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 810 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (bb) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481203/810-10-50-3 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 810 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 25 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481231/810-10-45-25 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Topic 860 -SubTopic 30 -Name Accounting Standards Codification -Section 50 -Paragraph 1A -Subparagraph (b)(1)(i) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481420/860-30-50-1A Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Topic 860 -SubTopic 30 -Name Accounting Standards Codification -Section 50 -Paragraph 1A -Subparagraph (b)(1)(ii) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481420/860-30-50-1A Reference 7: http://www.xbrl.org/2003/role/disclosureRef -Topic 860 -SubTopic 30 -Name Accounting Standards Codification -Section 50 -Paragraph 1A -Subparagraph (b)(2) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481420/860-30-50-1A + Details
Name: | us-gaap_VariableInterestEntityLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | srt_ConsolidatedEntitiesAxis=us-gaap_VariableInterestEntityPrimaryBeneficiaryMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis=pnw_PinnacleWestCaptiveInsuranceCellMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | dei_LegalEntityAxis=pnw_ArizonaPublicServiceCompanyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RangeAxis=srt_MaximumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | pnw_SaleLeasebackTransactionPeriodAxis=pnw_SaleLeasebackTransactionPeriodThrough2033Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |