INCOME TAXES - Unrecognized Tax Benefits (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020		Dec. 31, 2019		Dec. 31, 2018
Income Tax Disclosure [Abstract]
Unrecognized tax benefits, income tax penalties and interest accrued	$ 400		$ 300		$ 500
Unrecognized tax benefits, income tax penalties and interest expense	100		(100)		300
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]
Unrecognized tax benefits - January 1	1,547	[1]	1,749	[1]	991
Additions based on current year tax positions	7		0		0
Additions based on tax positions related to prior years	89		227	[1]	1,004
Reductions based on tax positions related to prior years			(415)	[1]	0
Settlements	0		0	[1]	0
Reductions resulting from a lapse of the applicable statute of limitations	(33)		(14)	[1]	(246)
Unrecognized tax benefits - December 31	$ 1,610		$ 1,547	[1]	$ 1,749	[1]

[1] 2018 revised figures were not considered material. Penalties and interest were excluded in 2019, therefore 2018 amounts were revised for consistency.