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Accrued and Other Liabilities (Detail) - USD ($)
$ in Thousands
Mar. 31, 2019
Dec. 31, 2018
Payables And Accruals [Abstract]    
Manufacturing related $ 8,571 $ 5,465
Compensation and employee benefits 7,412 10,794
Current portion of lease liability 2,683  
Others 9,747 6,051
Total accrued and other liabilities $ 28,413 $ 22,310