XML 79 R73.htm IDEA: XBRL DOCUMENT v3.19.3.a.u2
Fair Value Measurements Other Financial Instruments (Details) - USD ($)
$ in Millions
Dec. 31, 2019
Dec. 31, 2018
Other Financial Instruments [Abstract]    
Long-term debt $ 255.0 $ 196.0
Long-term Debt, Fair Value $ 263.3 $ 192.6