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Accrued Expenses and Other Current Liabilities - Summary of Accrued Expenses and Other Current Liabilities (Detail) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2013
Dec. 31, 2012
Payables And Accruals [Abstract]    
Payroll and related benefits $ 7,143 $ 7,548
Royalties 3,285 2,577
Legal and audit fees 844 832
Sales tax payable 1,604 873
Dividend payable 2,357 1,489
Contingent acquisition consideration 2,302 2,064
Other 2,890 1,936
Total $ 20,425 $ 17,319