XML 131 R119.htm IDEA: XBRL DOCUMENT v3.19.2
Income Taxes - Additional Information (Detail) - USD ($)
$ in Thousands
Jun. 30, 2019
Dec. 31, 2018
Income Tax Disclosure [Abstract]    
Unrecognized tax benefits that would affect the effective tax rate $ 200 $ 200
Accrued interest and penalties related to uncertain tax positions $ 45 $ 45