RESTRUCTURING CHARGES - Restructuring charges (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Restructuring Cost and Reserve [Line Items]
Total restructuring charges	$ 886	$ 185
Workforce reduction
Restructuring Cost and Reserve [Line Items]
Total restructuring charges	721	183
Other restructuring costs
Restructuring Cost and Reserve [Line Items]
Total restructuring charges	$ 165	$ 2