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Debt - Maturities of Debt (Detail) - USD ($)
$ in Thousands
Jun. 30, 2015
Jun. 30, 2014
Debt Instrument [Line Items]    
Noncurrent portion of debt $ 15,000 $ 59,565
Promissory Note [Member]    
Debt Instrument [Line Items]    
2016 50  
Long term debt, total 50  
Less: imputed interest and unamortized discounts (1)  
Less: current portion (49)  
Long term debt, total 50  
Revolving loan facility [Member]    
Debt Instrument [Line Items]    
2017 15,000  
Long term debt, total 15,000  
Noncurrent portion of debt 15,000  
Long term debt, total $ 15,000