SEGMENT INFORMATION (Revenues by Customer Location) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	$ 1,165,465	$ 1,210,941
United States
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	667,148	679,437
United Kingdom
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	135,901	155,327
Switzerland
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	98,444	89,861
Netherlands
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	51,670	59,100
Germany
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	50,462	42,735
Canada
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	22,620	27,832
Russia
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	0	5,873
Other locations
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	$ 139,220	$ 150,776