XML 89 R74.htm IDEA: XBRL DOCUMENT v3.8.0.1
INCOME TAXES - Summary of Income Tax Expense (Benefit) (Detail) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Income Tax Disclosure [Abstract]      
Current expense $ 1,260 $ 1,498 $ 837
Deferred expense (benefit) 443 (232) 797
Expense due to enactment of federal tax reform legislation 2,635 0 0
Income tax expense $ 4,338 $ 1,266 $ 1,634