RESTRUCTURING CHARGES - Restructuring charges (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Restructuring Cost and Reserve [Line Items]
Total restructuring charges	$ 8,511	$ 1,016	$ 10,932	$ 1,902
Restructuring Incurred Cost Statement Of Income Or Comprehensive Income Extensible Enumeration Not Disclosed Flag			Total restructuring charges	Total restructuring charges
Costs to exit duplicative and loss-making contracts
Restructuring Cost and Reserve [Line Items]
Total restructuring charges	7,644	0	$ 8,039	$ 0
Workforce reduction
Restructuring Cost and Reserve [Line Items]
Total restructuring charges	705	930	2,565	1,651
Other restructuring costs
Restructuring Cost and Reserve [Line Items]
Total restructuring charges	$ 162	$ 86	$ 328	$ 251