INCOME TAXES - Schedule of Income Tax Expense and Effective Tax Rate (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Income Tax Disclosure [Abstract]
Income tax provision	$ 1,384	$ 1,022	$ 2,571	$ 1,966
Effective tax rate	18.63%	18.07%	18.43%	17.94%