XML 49 R38.htm IDEA: XBRL DOCUMENT v3.25.3
Acquisitions and Divestitures (Details)
$ in Thousands
 3 Months Ended 9 Months Ended
Sep. 30, 2025
USD ($)
Sep. 30, 2024
USD ($)
Sep. 30, 2025
USD ($)
Sep. 30, 2024
USD ($)
Acquisitions - Additional Information [Line Items]        
Revenues $ 179,600 $ 160,200 $ 671,100 $ 572,200
Operating Income (Loss) 45,000 40,900 $ 182,100 $ 161,300
Number of Miles of Distribution Mains     150 160
Transaction-related expenses 200 800 $ 1,000 $ 3,100
Total operating income 45,000 40,900 182,100 161,300
Unregulated Energy [Member]        
Acquisitions - Additional Information [Line Items]        
Revenues 40,700 35,600 195,300 160,100
Operating Income (Loss) (3,900) (3,100) 20,900 18,700
Total operating income (3,900) (3,100) 20,900 18,700
Regulated Energy [Member]        
Acquisitions - Additional Information [Line Items]        
Revenues 146,400 130,600 497,800 429,700
Operating Income (Loss) 48,900 44,000 161,200 142,600
Total operating income $ 48,900 $ 44,000 $ 161,200 $ 142,600