Accrued Expenses And Other Current Liabilities (Details) - USD ($) $ in Millions	Dec. 31, 2018	Dec. 31, 2017
Other Liabilities Disclosure [Abstract]
Accrued salaries, wages and employee benefits	$ 55.2	$ 61.1
Accrued interest	43.5	46.4
Accrued income taxes payable	29.6	48.0
Other current liabilities	61.2	50.0
Total	$ 189.5	$ 205.5