ACCUMULATED OTHER COMPREHENSIVE LOSS (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance, beginning of period	$ 3,471,470	$ 3,003,010
Other comprehensive (loss)/income	(22,312)	17,361
Balance, end of period	3,475,685	3,130,442
Accumulated other comprehensive loss
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance, beginning of period	(39,040)	(95,321)
Balance, end of period	(61,352)	(77,960)
Foreign currency translation
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance, beginning of period	(43,601)	(101,780)
Unrealized (loss)/ gain in fair value	(23,501)	16,300
Income tax benefit/ (expense)	4,789	(3,073)
Other comprehensive (loss)/income	(18,712)	13,227
Balance, end of period	(62,313)	(88,553)
Cash flow hedging instruments
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance, beginning of period	7,819	8,306
Unrealized (loss)/ gain in fair value	(2,507)	7,895
Net gain reclassified into Cost of revenues (exclusive of depreciation and amortization)	(2,411)	(2,580)
Net loss reclassified into Foreign exchange loss	0	33
Income tax benefit/ (expense)	1,136	(1,214)
Other comprehensive (loss)/income	(3,782)	4,134
Balance, end of period	4,037	12,440
Defined benefit plans
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance, beginning of period	(3,258)	(1,847)
Other comprehensive (loss)/income	182	0
Actuarial gains	182	0
Balance, end of period	$ (3,076)	$ (1,847)