Quarterly report pursuant to Section 13 or 15(d)

Financial Instruments, Fair Value of Other Financial Instruments (Details)

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Financial Instruments, Fair Value of Other Financial Instruments (Details) - USD ($)
$ in Millions
Sep. 30, 2017
Dec. 31, 2016
Oct. 01, 2016
Derivative Instruments and Hedging Activities Disclosure [Abstract]      
Fair Value of the Company's Long-Term Debt Including Current Maturities $ 492.8 $ 498.5 $ 485.4
Long-Term Debt $ 441.8 $ 444.6 $ 447.9