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Summary of Business and Significant Accounting Policies - Impact of Accounting Change Retrospectively Adopted on Condensed Consolidated Statement of Operations (Detail) (USD $)
In Thousands, except Per Share data, unless otherwise specified
 12 Months Ended
Jun. 30, 2013
Jun. 30, 2012
Jun. 30, 2011
New Accounting Pronouncements Or Change In Accounting Principle [Line Items]      
Sales and marketing $ 24,434 $ 20,086 [1] $ 14,071 [1]
Total operating expense 39,640 31,961 [1] 23,596 [1]
Income / (loss) from operations 1,243 (2,033) [1] 9,553 [1]
Net income / (loss) before income tax provision 1,063 (3,432) [1] 8,568 [1]
Net income / (loss) 684 (3,822) [1] 8,372 [1]
Basic net income / (loss) per common share $ 0.03 $ (0.16) [1] $ 0.37 [1]
Diluted net income / (loss) per common share $ 0.03 $ (0.16) [1] $ 0.34 [1]
As Previously Reported
      
New Accounting Pronouncements Or Change In Accounting Principle [Line Items]      
Sales and marketing   21,181 13,932
Total operating expense   33,056 23,457
Income / (loss) from operations   (3,128) 9,692
Net income / (loss) before income tax provision   (4,527) 8,707
Net income / (loss)   (4,917) 8,511
Basic net income / (loss) per common share   $ (0.20) $ 0.37
Diluted net income / (loss) per common share   $ (0.20) $ 0.35
Adjustment
      
New Accounting Pronouncements Or Change In Accounting Principle [Line Items]      
Sales and marketing   (1,095) 139
Total operating expense   (1,095) 139
Income / (loss) from operations   1,095 (139)
Net income / (loss) before income tax provision   1,095 (139)
Net income / (loss)   $ 1,095 $ (139)
Basic net income / (loss) per common share   $ 0.04 $ 0.00
Diluted net income / (loss) per common share   $ 0.04 $ (0.01)
[1] As adjusted, see Note 1