REVENUE FROM CONTRACT WITH CUSTOMERS - Activity of Contract Liability (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Contract with Customer, Liability [Abstract]
Beginning balance	$ 2,314	$ 1,909	$ 2,476	$ 2,071
Amortization	(81)	(81)	(243)	(243)
Ending balance	$ 2,233	$ 1,828	$ 2,233	$ 1,828