Employee Benefit Plans - Schedule of Projected and Accumulated Benefit Obligations in Excess of Plan Assets (Details) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Projected benefit obligation	$ 58.9	$ 56.4
Accumulated benefit obligation	57.0	54.8
Fair value of plan assets	4.6	4.6
Health Care Benefits
Defined Benefit Plan Disclosure [Line Items]
Projected benefit obligation	7.1	7.4
Accumulated benefit obligation	7.1	7.4
Fair value of plan assets	$ 0.0	$ 0.0