RESTRUCTURING CHARGES - Restructuring charges (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Restructuring Cost and Reserve [Line Items]
Total restructuring charges	$ 10,008	$ 5,671	$ 11,981
Restructuring Incurred Cost Statement Of Income Or Comprehensive Income Extensible Enumeration Not Disclosed Flag	Total restructuring charges
Workforce reduction
Restructuring Cost and Reserve [Line Items]
Total restructuring charges	$ 6,058	5,521	11,885
Costs to exit duplicative contracts
Restructuring Cost and Reserve [Line Items]
Total restructuring charges	1,450	0	0
Other restructuring costs
Restructuring Cost and Reserve [Line Items]
Total restructuring charges	$ 2,500	$ 150	$ 96