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Stock Based Compensation - Additional Information (Detail) - USD ($)
shares in Thousands, $ in Thousands
3 Months Ended 6 Months Ended
Dec. 31, 2015
Dec. 31, 2015
Dec. 31, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Employee Service Share-based Compensation, Allocation of Recognized Period Costs, Capitalized Amount $ 153 $ 153  
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Net of Forfeitures   46 41
Employee Stock [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Shares authorized for issuance under stock incentive plan 1,800 1,800  
Share-based Compensation Arrangement by Share-based Payment Award, Number of Additional Shares Authorized   400  
Shares available for future grant 440 440  
Purchase price as a percentage of the lesser of the market value of such shares at either the beginning or the end of each nine-month offering period   85.00%  
Percentage of employee compensation that may be uses to purchase common stock through payroll deductions, maximum   10.00%  
2005 Stock Incentive Plan      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Shares authorized for issuance under stock incentive plan 15,252 15,252  
Share-based Compensation Arrangement by Share-based Payment Award, Number of Additional Shares Authorized   2  
Exercise price of stock option, percentage 100.00% 100.00%  
Shares available for future grant 2,786 2,786  
2005 Stock Incentive Plan | Maximum      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Term of stock option   7 years  
Executive Officer [Member] | 2005 Stock Incentive Plan | Performance Shares [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Vesting period   3 years  
Vice President [Member] | 2005 Stock Incentive Plan | Performance Shares [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Vesting period   4 years