ACCUMULATED OTHER COMPREHENSIVE LOSS - Amounts Included in Accumulated Other Comprehensive Loss (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Accumulated Other Comprehensive Income (Loss)
Beginning balance	$ 1,889,358	$ 1,718,256
Other comprehensive (loss) income before reclassifications	(104,671)	62,557	$ (86,757)
Amounts reclassified from accumulated other comprehensive loss	2,675	31,392	1,275
Other comprehensive (loss) income	(101,996)	93,949	(85,482)
Ending balance	1,989,581	1,889,358	1,718,256
Accumulated other comprehensive loss
Accumulated Other Comprehensive Income (Loss)
Beginning balance	(251,361)	(345,310)	(259,828)
Ending balance	(353,357)	(251,361)	(345,310)
Unrecognized Net Defined Benefit Plan Costs
Accumulated Other Comprehensive Income (Loss)
Beginning balance	(133,523)	(156,733)	(119,474)
Other comprehensive (loss) income before reclassifications	(2,279)	15,556	(39,174)
Amounts reclassified from accumulated other comprehensive loss	5,814	7,654	1,915
Other comprehensive (loss) income	3,535	23,210	(37,259)
Ending balance	(129,988)	(133,523)	(156,733)
Change in Fair Value of Derivatives
Accumulated Other Comprehensive Income (Loss)
Beginning balance	(216)	(772)	(2,327)
Other comprehensive (loss) income before reclassifications	(1,684)	852	2,195
Amounts reclassified from accumulated other comprehensive loss	(3,139)	(296)	(640)
Other comprehensive (loss) income	(4,823)	556	1,555
Ending balance	(5,039)	(216)	(772)
Foreign Currency Translation
Accumulated Other Comprehensive Income (Loss)
Beginning balance	(117,622)	(187,805)	(138,027)
Other comprehensive (loss) income before reclassifications	(100,708)	46,149	(49,778)
Amounts reclassified from accumulated other comprehensive loss	0	24,034	0
Other comprehensive (loss) income	(100,708)	70,183	(49,778)
Ending balance	$ (218,330)	$ (117,622)	$ (187,805)