Quarterly report pursuant to Section 13 or 15(d)

Income Taxes - Additional Information (Detail)

v3.21.2
Income Taxes - Additional Information (Detail) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2021
Sep. 30, 2020
Sep. 30, 2021
Sep. 30, 2020
Dec. 31, 2020
Income Tax [Line Items]          
Income tax expense $ 352 $ 420 $ 534 $ 719  
Ireland          
Income Tax [Line Items]          
Net operating loss carryforwards $ 32,984   $ 32,984   $ 30,261