Annual report pursuant to Section 13 and 15(d)

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

v3.10.0.1
Financial Instruments, Fair Value of Other Financial Instruments (Details) - USD ($)
$ in Millions
Dec. 31, 2018
Dec. 31, 2017
Derivative Instruments and Hedging Activities Disclosure [Abstract]    
Fair Value of the Company's Long-Term Debt Including Current Maturities $ 1,292.9 $ 492.1
Long-Term Debt $ 1,226.4 $ 439.1