v3.26.1
El Dorado Equity Investments - Schedule of El Dorado’s Ownership Percentages and Carrying Value of Investments Accounted for Under the Equity Method Investments (Details) - USD ($)
$ in Thousands
Jun. 30, 2026
Dec. 31, 2025
Schedule of Equity Method Investments [Line Items]    
Total equity method investments $ 52,000 $ 36,000
SAI    
Schedule of Equity Method Investments [Line Items]    
Pinnacle West Ownership Percentage as of June 30, 2026 17.99%  
Total equity method investments $ 34,000 21,000
Copper Sky    
Schedule of Equity Method Investments [Line Items]    
Pinnacle West Ownership Percentage as of June 30, 2026 23.00%  
Total equity method investments $ 18,000 $ 15,000
Funding commitment 25,000  
Funding commitment, amount funded $ 18,800