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Intangible Assets - Estimated Future Amortization Expense for Acquired Intangible Assets (Detail) - USD ($)
$ in Thousands
Jun. 30, 2015
Jun. 30, 2014
Goodwill and Intangible Assets Disclosure [Abstract]    
2015 $ 6,523  
2016 5,041  
2017 4,304  
2018 1,760  
2019 370  
Net Carrying Amount $ 17,998 $ 25,006