Commitments and Contingencies - Leases (Details) - USD ($) $ in Millions	Mar. 31, 2020	Dec. 31, 2019
Operating Lease [Abstract]
2020		$ 15.1
2021		13.4
2022		10.9
2023		8.8
2024		6.6
Thereafter		8.2
Total future lease payments		63.0
Less: Present values		(9.3)
Total lease liability balance		53.7
Finance Lease [Abstract]
2020	$ 1.0	1.0
2021	0.5	0.7
2022	0.0	0.1
2023	0.0	0.0
2024	0.0	0.0
Thereafter	0.0	0.0
Total future lease payments	1.5	1.8
Less: Present values	(0.1)	(0.1)
Total lease liability balance	$ 1.4	$ 1.7