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Related Parties (Details) (USD $)
In Millions, unless otherwise specified
Mar. 31, 2015
Dec. 31, 2014
Related Parties    
Receivables from related parties $ 0.3us-gaap_DueFromRelatedParties $ 0.4us-gaap_DueFromRelatedParties
Payable to related parties $ 0.2us-gaap_DueToRelatedPartiesCurrentAndNoncurrent $ 0.2us-gaap_DueToRelatedPartiesCurrentAndNoncurrent