INCOME TAXES - Schedule of Income Tax Expense (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Income Tax Disclosure [Abstract]
Income tax expense for the period	$ 1,160	$ 1,699	$ 3,126	$ 4,644
Effective tax rate	18.56%	29.10%	18.16%	28.54%