INCOME TAXES - Net Deferred Tax Assets and Liabilities (Detail) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Assets:
Deferred tax asset	$ 67,558	$ 0
Liabilities:
Deferred tax liability	2,643	7,041
Net deferred tax liabilities		$ (7,041)
Net deferred tax assets	$ 64,915