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Long-Term Debt - Interest Expense and Interest Income Narrative (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Debt Instrument [Line Items]      
Interest Expense, Operating and Nonoperating $ 186.0 $ 201.7 $ 174.5
Interest Costs Capitalized $ 10.7 $ 8.0 $ 6.6
Long-term Debt, Weighted Average Interest Rate, at Point in Time 6.50% 7.10% 6.60%
Investment Income, Interest $ 28.1 $ 26.2 $ 17.0