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Fair Value Measurements (Details) - USD ($)
$ in Millions
Dec. 31, 2020
Dec. 31, 2019
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Derivative, Notional Amount $ 34.2 $ 56.6
Derivative Asset 0.1 0.1
Derivative Liability 0.1 0.1
Other Assets, Fair Value Disclosure 1.5 1.4
Long-term Debt, Fair Value 954.8 $ 922.3
Debt Instrument, Fair Value Disclosure $ 30.0