INCOME TAXES - Components of Income Tax Expense (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Current:
Federal	$ 17,757	$ 18,296	$ 20,102
Foreign	1,609	4,060	3,015
State	818	3,880	2,790
Deemed Repatriation	0	(970)	1,389
Deferred:
Federal	(3,707)	(3,788)	(1,302)
Foreign	67	(69)	62
State	263	(952)	(384)
Federal Rate Change	0	0	(27,255)
Total income tax provision	$ 16,807	$ 20,457	$ (1,583)