SEGMENT INFORMATION (Revenues by Customer Location) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	$ 1,146,597	$ 1,170,206	$ 2,312,062	$ 2,381,147
United States
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	662,567	649,622	1,329,715	1,329,059
United Kingdom
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	127,822	152,481	263,723	307,808
Switzerland
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	101,310	89,497	199,754	179,358
Germany
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	49,561	45,028	100,023	87,763
Netherlands
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	45,091	58,408	96,761	117,508
Canada
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	21,113	26,485	43,733	54,317
Russia
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	0	5,872	0	11,745
Other locations
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	$ 139,133	$ 142,813	$ 278,353	$ 293,589