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Intangible Assets - Summary of expected amortization expense (Details 1) (USD $)
In Thousands, unless otherwise specified
Sep. 30, 2013
Jun. 30, 2013
Intangible Assets [Abstract]    
2014 (nine months) $ 18,861  
2015 20,038  
2016 15,190  
2017 13,081  
2018 9,706  
Thereafter 20,805  
Total intangible assets, net $ 97,681 $ 104,188