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Goodwill and Other Intangible Assets Estimated Aggregate Future Amortization Expense (Details) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2014
Goodwill and Intangible Assets Disclosure [Abstract]  
2015 $ 8,211us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseRemainderOfFiscalYear
2016 7,202us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo
2017 5,972us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree
2018 5,229us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour
2019 2,814us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFive
Thereafter 6,354us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive
Finite-Lived Intangible Assets, Net $ 35,782us-gaap_FiniteLivedIntangibleAssetsNet