ACCUMULATED OTHER COMPREHENSIVE INCOME (Schedule of Reclassifications Out of Other Comprehensive Income) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Cost of revenue	$ 375,048	$ 371,025
Provision for income taxes	67,407	59,900
Interest expense	7,666	7,911
General and administrative expense	91,561	92,024
Net income	242,677	235,579
Reclassification Out of Accumulated Other Comprehensive Income | Investments
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Provision for income taxes	0	51
General and administrative expense	0	(214)
Net income	0	(163)
Reclassification Out of Accumulated Other Comprehensive Income | Defined benefit plans
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Cost of revenue	(138)	(113)
Provision for income taxes	22	19
Net income	(116)	(94)
Foreign currency exchange contracts | Reclassification Out of Accumulated Other Comprehensive Income | Cash flow hedges
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Cost of revenue	3,745	810
Provision for income taxes	(1,034)	(243)
Net income	2,711	567
Interest rate swap contracts | Reclassification Out of Accumulated Other Comprehensive Income | Cash flow hedges
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Provision for income taxes	(77)	(227)
Interest expense	324	957
Net income	$ 247	$ 730