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Non-operating Income (Expense) (Details) - USD ($)
$ in Millions
 3 Months Ended
Mar. 31, 2024
Mar. 31, 2023
Nonoperating Income (Expense) [Abstract]    
Interest Expense $ (6.7) $ (7.6)
Amortization of Debt Issuance Costs (0.4) (0.3)
Interest Income, Other 0.6 0.3
Interest Expense, Net (6.5) (7.6)
Net Periodic Defined Benefits Expense (Reversal of Expense), Excluding Service Cost Component 0.3 0.1
Total non-operating expense $ (6.2) $ (7.5)