INCOME TAXES - Income Tax Expense Allocation (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Income Tax Disclosure [Abstract]
Income from continuing operations	$ 42,503	$ 38,859	$ 50,118
Interest expense	300	100	0
Stockholders’ equity	0	0	(300)
Goodwill	900	0	0
Total income tax expense allocation	$ 43,700	$ 38,900	$ 49,800