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Schedule of Fair Value Assets and Liabilities Measured on a Recurring Basis (Details) - Fair Value, Inputs, Level 2 - USD ($)
$ in Millions
Dec. 31, 2019
Dec. 31, 2018
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Estimated fair value of total debt $ 831.4 $ 848.6
Forward currency contracts, assets 8.0 16.6
Forward currency contracts, liabilities $ 9.5 $ 14.5