REVENUE FROM CONTRACT WITH CUSTOMERS - Activity of Contract Liability (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Contract with Customer, Liability [Abstract]
Beginning balance	$ 2,070	$ 2,395	$ 2,151	$ 2,476
Amortization	(81)	(81)	(162)	(162)
Ending balance	$ 1,989	$ 2,314	$ 1,989	$ 2,314