ACCUMULATED OTHER COMPREHENSIVE INCOME (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning balance	$ 154,364	$ 122,409
Ending balance	287,053	154,364
Total Accumulated Other Comprehensive Income
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning balance	513	277
Other comprehensive (loss) income	13,656	236
Ending balance	14,169	513
Pension Adjustments
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning balance	(346)	(419)
Other comprehensive (loss) income	(40)	73
Ending balance	(386)	(346)
Foreign Currency Translation
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning balance	859	696
Other comprehensive (loss) income	5,013	163
Ending balance	5,872	859
Foreign Currency Gain on Intra-Entity Transactions
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning balance	0	0
Other comprehensive (loss) income	8,683	0
Ending balance	$ 8,683	$ 0