v3.25.0.1
Other Long-term Liabilities - Components of Deferred Revenue (Details) - USD ($)
$ in Millions
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Deferred Revenue Arrangement [Line Items]      
Total deferred revenue $ 119.9 $ 248.8 $ 198.8
Contributions in Aid of Construction [Member]      
Deferred Revenue Arrangement [Line Items]      
Total deferred revenue 91.1 86.4  
Gas Contract Amendment [Member]      
Deferred Revenue Arrangement [Line Items]      
Total deferred revenue 27.3 29.8  
Splitter Agreement [Member]      
Deferred Revenue Arrangement [Line Items]      
Total deferred revenue   129.0  
Other      
Deferred Revenue Arrangement [Line Items]      
Total deferred revenue $ 1.5 $ 3.6