v3.26.3
Regulatory Matters (Details)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2026
USD ($)
Jun. 30, 2026
USD ($)
Mar. 31, 2026
USD ($)
Sep. 30, 2025
USD ($)
Jun. 30, 2025
USD ($)
Mar. 31, 2025
USD ($)
Sep. 30, 2026
USD ($)
Rate
Sep. 30, 2025
USD ($)
Dec. 31, 2025
USD ($)
Regulatory Matters [Line Items]                  
Approved increase to basic rates and charges             $ 1,979,700    
Total current regulatory assets $ 88,496           88,496   $ 82,136
Total long-term regulatory assets 598,266           598,266   615,324
Total current regulatory liabilities 52,363           52,363   32,401
Total long-term regulatory liabilities 97,488           $ 97,488   $ 259,062
Public Utilities, Approved Return on Equity, Percentage | Rate             49.47%    
Public Utilities, Approved Debt Capital Structure, Percentage | Rate             50.53%    
Net Income (Loss) Attributable to Noncontrolling Interest $ (31,495) $ (33,854) $ (61,362) $ (7,715) $ (12,986) $ (82,595) $ (126,711) $ (103,296)  
Public Utilities, Requested Debt Capital Structure, Percentage | Rate             5.34%    
Public Utilities, Disclosure of Rate Matters             5.5 billion    
Public Utilities, Requested Return on Equity, Percentage | Rate             9.50%    
Public Utilities, Requested Debt Capital Structure, Percentage | Rate             5.34%    
Public Utilities, Disclosure of Rate Matters             5.5 billion    
Crosstrack Project MW             130    
Crosstrack Energy Storage Project             130    
Crosstrack Energy Storage Project MwH             520    
Foundry Works Project             200    
Foundry Works Project MwH             800    
Foundry Works Energy Storage Project MW             130    
Foundry Works Energy Storage Project MwH             520