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Palo Verde Sale Leaseback Variable Interest Entities - Additional Information (Details) $ in Thousands | 12 Months Ended |
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Dec. 31, 2021 USD ($) Trust lease Lease | Dec. 31, 2020 USD ($) | Dec. 31, 2019 USD ($) | Dec. 31, 1986 Trust
Palo Verde Sale Leaseback Variable Interest Entities |  |  |  |
Increase in net income due to consolidation of Palo Verde Sale Leaseback Trusts | $ 17,224 | $ 19,493 | $ 19,493 |
Arizona Public Service Company |  |  |  |
Palo Verde Sale Leaseback Variable Interest Entities |  |  |  |
Number of VIE lessor trusts | Trust | 3 |  |  |
Increase in net income due to consolidation of Palo Verde Sale Leaseback Trusts | $ 17,224 | 19,493 | 19,493 |
Arizona Public Service Company | Variable Interest Entity |  |  |  |
Palo Verde Sale Leaseback Variable Interest Entities |  |  |  |
Number of VIE lessor trusts | Trust |  |  |  | 3
Increase in net income due to consolidation of Palo Verde Sale Leaseback Trusts | 17,000 | $ 19,000 | $ 19,000 |
Initial loss exposure to the VIEs noncontrolling equity participants during lease extension period | 315,000 |  |  |
Maximum loss exposure to the VIE's noncontrolling equity participants during lease extension period | $ 501,000 |  |  |
Arizona Public Service Company | Period Through 2023 | Variable Interest Entity |  |  |  |
Palo Verde Sale Leaseback Variable Interest Entities |  |  |  |
Number of leases under which assets are retained | Lease | 1 |  |  |
Arizona Public Service Company | Period Through 2033 | Variable Interest Entity |  |  |  |
Palo Verde Sale Leaseback Variable Interest Entities |  |  |  |
Number of leases under which assets are retained | Lease | 2 |  |  |
Arizona Public Service Company | Period 2022 through 2023 | 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 |  |  |
Lease period | 2 years |  |  |

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- 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
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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. + References No definition available. + Details
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