Quarterly report pursuant to Section 13 or 15(d)

Income Taxes - Additional Information (Detail)

v3.20.2
Income Taxes - Additional Information (Detail) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2020
Sep. 30, 2019
Sep. 30, 2020
Sep. 30, 2019
Dec. 31, 2019
Income Tax [Line Items]          
Income tax expense $ 420 $ 104 $ 719 $ 395  
Ireland          
Income Tax [Line Items]          
Net operating loss carryforwards $ 29,879   $ 29,879   $ 26,195