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Palo Verde Sale Leaseback Variable Interest Entities - Narrative (Details)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2024
USD ($)
Sep. 30, 2023
USD ($)
Sep. 30, 2024
USD ($)
lease
Sep. 30, 2023
USD ($)
Dec. 31, 1986
numberOfTrust
Palo Verde Sale Leaseback Variable Interest Entities          
Less: Net income attributable to noncontrolling interests (Note 6) $ 4,306 $ 4,306 $ 12,918 $ 12,918  
APS          
Palo Verde Sale Leaseback Variable Interest Entities          
Less: Net income attributable to noncontrolling interests (Note 6) 4,306 4,306 12,918 12,918  
Palo Verde VIE | APS          
Palo Verde Sale Leaseback Variable Interest Entities          
Number of VIE lessor trusts | numberOfTrust         3
Less: Net income attributable to noncontrolling interests (Note 6) $ 4,000 $ 4,000 13,000 $ 13,000  
Initial loss exposure to the VIE's noncontrolling equity participants during lease extension period     334,000    
Palo Verde VIE | 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    
Palo Verde VIE | APS | Period Through 2033          
Palo Verde Sale Leaseback Variable Interest Entities          
Number of leases under which assets are retained | lease     3    
Annual lease payments     $ 21,000    
Palo Verde VIE | APS | Period Through 2033 | Maximum          
Palo Verde Sale Leaseback Variable Interest Entities          
Lease period (up to)     2 years