Quarterly report pursuant to Section 13 or 15(d)

Income Taxes - Additional Information (Detail)

v3.3.0.814
Income Taxes - Additional Information (Detail) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2015
Sep. 30, 2014
Sep. 30, 2015
Sep. 30, 2014
Income Tax Disclosure [Abstract]        
Income tax expense $ 957 $ 842 $ 819 $ 1,907
Research and development credits 200      
Adjustments to foreign income tax liability $ 100      
Effective tax rate     41.20% 45.10%