LEASES - Supplemental Cash Flow Information Related to Leases (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Leases [Abstract]
Operating cash flow from operating leases	$ 13,464	$ 10,219	$ 0
Right-of-Use Asset Obtained in Exchange for Operating Lease Liability	$ 1,328	$ 10,762	$ 0