Accrued Expenses And Other Current Liabilities (Details) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Other Liabilities Disclosure [Abstract]
Accrued salaries, wages and employee benefits	$ 47.5	$ 55.2
Accrued interest	4.2	43.5
Accrued income taxes payable	25.8	29.6
Lease liabilities	16.1
Other current liabilities	61.5	61.2
Total	$ 155.1	$ 189.5