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Intangible Assets - Schedule of Expected Amortization Expense (Details) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2014
Finite Lived Intangible Assets Future Amortization Expense [Abstract]  
2015 $ 7,429us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths
2016 7,010us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo
2017 6,356us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree
2018 5,338us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour
2019 $ 4,764us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFive