LEASES - Supplemental Balance Sheet Information (Detail) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Leases [Abstract]
Operating lease right-of-use right	$ 107,629	$ 61,327
Operating Lease, Liability	$ 110,888	$ 64,259
Operating lease weighted average remaining lease term	8 years 7 months 6 days	10 years 9 months 18 days
Operating lease weighted average discount rate	2.24%	3.29%