Leases - Schedule of minimum lease payments for operating leases expiring subsequent to September 30, 2019 and December 31,2019 (Details) $ in Millions	Dec. 31, 2019 USD ($)
Leases [Abstract]
2020 (remaining period of fiscal year)	$ 7.3
2021	12.2
2022	10.4
2023	9.0
2024	7.3
Thereafter	26.3
Total future minimum lease payments	72.5
Less imputed interest	(11.1)
Total	$ 61.4