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Intangible Assets - Estimated Future Amortization Expense (Detail) - USD ($)
$ in Thousands
Jun. 30, 2015
Mar. 31, 2015
Goodwill and Intangible Assets Disclosure [Abstract]    
2016 $ 8,670  
2017 7,033  
2018 3,318  
2019 2,066  
2020 542  
Future 1,143  
Net $ 22,772 $ 24,936