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Summary of Significant Accounting Policies - Additional Information (Detail) (USD $)
In Thousands, except Per Share data, unless otherwise specified
1 Months Ended 12 Months Ended
Feb. 16, 2011
Jun. 30, 2012
Customer
Jun. 30, 2011
Customer
Jun. 30, 2010
Significant Accounting Policies [Line Items]        
Cash and cash equivalent   $ 115,958 $ 162,869  
Concentration of risk accounts receivable percentage   59.00% 74.00%  
Number of customers accounted for company's receivables   5 5  
Software useful life   3 years    
Capitalized software development cost   1,092 1,000  
Minimum likelihood of tax benefits being recognized upon ultimate settlement   50.00%    
Common stock excluded from diluted earning per share   1,244 753 1,705
Follow-on public stock offering, price per share $ 17.75      
Proceeds from follow-on public stock offering, net $ 93,605   $ 93,605  
Follow-on public stock offering weighted average share included in basic and diluted earning per share   5,578 2,129  
Common Stock
       
Significant Accounting Policies [Line Items]        
Follow-on public stock offering, shares 5,578      
Maximum
       
Significant Accounting Policies [Line Items]        
Maturity of cash and cash equivalents   90    
Acquired intangible assets, estimated useful lives   7 years    
Multiple Delivery Revenue
       
Significant Accounting Policies [Line Items]        
Percentage of revenue under multi- deliverable arrangement   39.00% 50.00% 53.00%