SEGMENT INFORMATION (Revenues by Customer Location) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	$ 1,167,527	$ 1,152,136	$ 3,479,589	$ 3,533,283
United States
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	666,851	652,757	1,996,566	1,981,816
United Kingdom
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	126,010	140,718	389,733	448,526
Switzerland
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	104,268	91,504	304,022	270,862
Germany
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	53,604	44,843	153,627	132,606
Netherlands
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	45,816	59,020	142,577	176,528
Canada
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	22,012	21,808	65,745	76,125
Russia
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	0	1,545	0	13,290
Other locations
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	$ 148,966	$ 139,941	$ 427,319	$ 433,530