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Leases (Schedule of Undiscounted Future Minimum Payments) (Details)
$ in Millions
Mar. 31, 2019
USD ($)
Leases [Abstract]  
2019 $ 4.9
2020 6.1
2021 5.0
2022 4.0
2023 3.5
Thereafter 12.0
Total lease payments 35.5
Less interest (6.7)
Lease liabilities $ 28.8