Leases (Schedule of Undiscounted Future Minimum Payments) (Details) $ in Millions	Sep. 30, 2019 USD ($)
Leases [Abstract]
2019	$ 1.7
2020	6.3
2021	5.2
2022	4.7
2023	4.1
Thereafter	21.1
Total lease payments	43.1
Less interest	(7.9)
Lease liabilities	$ 35.2