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Intangible Assets (Details 2) (USD $)
In Thousands, unless otherwise specified
Mar. 31, 2015
Mar. 31, 2014
Estimated amortization of intangible assets with determinable lives    
2015 $ 7,204us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths  
2016 6,733us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo  
2017 4,481us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree  
2018 3,697us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour  
2019 3,352us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFive  
2021 and beyond 2,222us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive  
Net intangible assets $ 27,689us-gaap_FiniteLivedIntangibleAssetsNet $ 33,016us-gaap_FiniteLivedIntangibleAssetsNet