INCOME TAXES (Net Deferred Tax Assets and Liabilities) (Detail) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Income Tax Disclosure [Abstract]
Net noncurrent deferred tax assets	$ 2,605	$ 2,217
Net noncurrent deferred tax liabilities	49,360	49,722
Deferred Tax Liabilities, Net	$ 46,755	$ 47,505