Quarterly report pursuant to Section 13 or 15(d)

Income Taxes - Additional Information (Detail)

v3.20.1
Income Taxes - Additional Information (Detail) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2020
Mar. 31, 2019
Dec. 31, 2019
Income Tax [Line Items]      
Income tax expense $ 121 $ 134  
Ireland      
Income Tax [Line Items]      
Net operating loss carryforwards $ 28,365   $ 26,195