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Goodwill and Other Intangible Assets (Details 2) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2014
Dec. 31, 2013
Estimated amortization expense of finite-lived intangible assets for future periods    
2015 $ 4,878us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths  
2016 4,260us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo  
2017 3,549us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree  
2018 2,989us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour  
2019 2,493us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFive  
Thereafter 4,455us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive  
Net Carrying Amount $ 22,624us-gaap_FiniteLivedIntangibleAssetsNet $ 28,230us-gaap_FiniteLivedIntangibleAssetsNet