Leases - Schedule of Future Minimum Operating Lease Payments (Details) - USD ($) $ in Millions	Sep. 30, 2019	Dec. 31, 2018
Leases [Abstract]
2019	$ 1.4
2020	5.5
2021	5.0
2022	4.0
2023	3.4
Thereafter	11.6
Total future minimum lease payments	30.9
Less: Imputed interest	3.7
Present value of lease liabilities	27.2
Accrued expense (current maturities of leases)	4.7
Other liabilities (non-current maturities of leases)	$ 22.5
2019		$ 5.0
2020		4.5
2021		3.8
2022		3.1
2023		3.0
Thereafter		11.2
Total future minimum lease payments		$ 30.6