Annual Rental Payments, Sale Leaseback Transaction

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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.

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- Definition

Sale Lease back Transaction, Leasehold Interest, Potential Percentage

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- 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.

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Represents the number of leases under which assets are retained through a specified period.

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- Definition

Variable Interest Entity, Entity Initial Loss Exposure To Noncontrolling Interests During Lease Extension Period, Amount

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Variable Interest Entity, Entity Loss Exposure to Noncontrolling Interests During Lease Extension Period, Amount

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- Definition

Variable Interest Entity, Entity Initial Loss Exposure To Noncontrolling Interests

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Variable Interest Entity, Qualitative or Quantitative Information, Potential Ownership Percentage

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- Definition

Amount of investment in equity method investee and investment in and advance to affiliate.

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Amount of Net Income (Loss) attributable to noncontrolling interest.

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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.

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Variable Interest Entities - Additional Information (Details) $ in Thousands	1 Months Ended	3 Months Ended		6 Months Ended
	Jun. 30, 2025 USD ($) lease	Jun. 30, 2025 USD ($)	Jun. 30, 2024 USD ($)	Jun. 30, 2025 USD ($) lease	Jun. 30, 2024 USD ($)	Dec. 31, 2024 USD ($)	Dec. 31, 1986 trust
Palo Verde Sale Leaseback Variable Interest Entities
Net income attributable to noncontrolling interest		$ 4,306	$ 4,306	$ 8,612	$ 8,612
APS
Palo Verde Sale Leaseback Variable Interest Entities
Net income attributable to noncontrolling interest		4,306	4,306	8,612	8,612
Special use fund						$ 34,200
Variable Interest Entity
Palo Verde Sale Leaseback Variable Interest Entities
Net income attributable to noncontrolling interest		1,700	0	2,400	0
Variable Interest Entity \| APS
Palo Verde Sale Leaseback Variable Interest Entities
Net income attributable to noncontrolling interest		4,000	$ 4,000	9,000	$ 9,000
Number of Vie lessor trusts \| trust							3
Initial loss exposure to the VIEs noncontrolling equity participants during lease extension period				345,000
Variable Interest Entity \| APS \| 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
Variable Interest Entity \| APS \| Sale Leaseback Transaction Period Through 2033
Palo Verde Sale Leaseback Variable Interest Entities
Number of leases under which assets are retained \| lease	2			3
Annual lease payments				$ 21,000
Potential acquisition price	$ 199,000
Potential ownership percentage	24.00%
Potential leasehold interest	5.20%
Variable Interest Entity \| APS \| Period 2022 through 2023 \| Maximum
Palo Verde Sale Leaseback Variable Interest Entities
Lease period (up to)				2 years
Variable Interest Entity \| Pinnacle West Captive Insurance Cell
Palo Verde Sale Leaseback Variable Interest Entities
Special use fund	$ 39,000	$ 39,000		$ 39,000		$ 34,000