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Intangible Assets and Goodwill (Estimated Remaining Amortization Expense) (Details) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2014
Dec. 31, 2013
Estimated remaining amortization expense related to intangible assets:    
2015 $ 3,112us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths  
2016 3,035us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo  
2017 2,633us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree  
2018 2,218us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour  
2019 1,584us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFive  
2020 and thereafter 4,316us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive  
Total $ 16,898us-gaap_FiniteLivedIntangibleAssetsNet $ 8,668us-gaap_FiniteLivedIntangibleAssetsNet