INCOME TAXES - Summary of Income Tax Expense (Benefit) (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Income Tax Disclosure [Abstract]
Current expense	$ 934	$ 1,097	$ 1,260
Deferred expense (benefit)	1,776	543	443
Expense due to enactment of federal tax reform legislation	0	0	2,635
Income tax expense	$ 2,710	$ 1,640	$ 4,338