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Commitments and Contingencies - Operating Leases (Details)
$ in Millions
Dec. 31, 2014
USD ($)
Commitments and Contingencies Disclosure [Abstract]  
2016 $ 4.3
2017 4.2
2018 1.8
2019 0.0
2020 0.0
Thereafter 0.9
Total $ 11.2