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Commitments, Contingencies and Litigation Judgment (Leases) (Details) (USD $)
In Millions, unless otherwise specified
12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Leases (Textual) [Abstract]      
2015 $ 14.8us-gaap_OperatingLeasesFutureMinimumPaymentsDueCurrent    
2016 12.7us-gaap_OperatingLeasesFutureMinimumPaymentsDueInTwoYears    
2017 9.9us-gaap_OperatingLeasesFutureMinimumPaymentsDueInThreeYears    
2018 6.1us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFourYears    
2019 2.9us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFiveYears    
Thereafter 2.3us-gaap_OperatingLeasesFutureMinimumPaymentsDueThereafter    
Rental expense 18.6us-gaap_LeaseAndRentalExpense 17.6us-gaap_LeaseAndRentalExpense 15.8us-gaap_LeaseAndRentalExpense
Affiliated Entity      
Leases (Textual) [Abstract]      
Rental expense $ 2.3us-gaap_LeaseAndRentalExpense
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= us-gaap_AffiliatedEntityMember