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Goodwill and Intangible Assets (Details 3) (USD $)
In Millions, unless otherwise specified
Dec. 31, 2014
Goodwill and Intangible Assets Disclosure [Abstract]  
2015 $ 3.8us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths
2016 3.7us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo
2017 3.5us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree
2018 3.4us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour
2019 3.2us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFive
Thereafter $ 10.2us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive