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Commitment and Contingencies (Leases and Other Commitments) (Details)
$ in Millions
Jun. 30, 2017
USD ($)
Operating Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract]  
2017 (Remaining) $ 17.7
2018 33.1
2019 25.0
2020 18.7
2021 15.1
Thereafter 40.3
Total $ 149.9