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Goodwill (Details) - USD ($)
$ in Thousands
Dec. 31, 2024
Dec. 31, 2023
Goodwill [Line Items]    
Goodwill $ 357,586 $ 357,586
Electric    
Goodwill [Line Items]    
Goodwill 243,558 243,558
Natural gas    
Goodwill [Line Items]    
Goodwill $ 114,028 $ 114,028