Employee Benefit Plans - Workers' Compensation and Related Losses (Details) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Employee Benefit Plans [Abstract]
Other current assets	$ 0.6	$ 4.5
Other long-term assets	4.8	2.1
Total recovery receivable	5.4	6.6
Accrued and other current liabilities	4.2	4.5
Other long-term liabilities	12.9	15.0
Total workers' compensation liability	17.1	$ 19.5
Limits in excess of occurrence for reimbursement of workers' compensation	$ 0.5