Commitment and Contingencies - Self-Insured Risk (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Loss Contingencies
Accrued self-insurance liability	$ 76.6	$ 73.8
Minimum | Domestic Product Liability and Auto, General Liability, Personal Injury and Workers Compensation
Loss Contingencies
Concentration risk, auto, employee and general liability	3.0
Minimum | Auto, General Liability, Personal Injury and Workers Compensation
Loss Contingencies
Concentration risk, auto, employee and general liability	0.5
Maximum | Domestic Product Liability and Auto, General Liability, Personal Injury and Workers Compensation
Loss Contingencies
Concentration risk, auto, employee and general liability	250.0
Maximum | Auto, General Liability, Personal Injury and Workers Compensation
Loss Contingencies
Concentration risk, auto, employee and general liability	$ 250.0