ACCUMULATED OTHER COMPREHENSIVE (LOSS) INCOME - Schedule of Reclassifications From Accumulated Other Comprehensive Income (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Amount Reclassified from Accumulated Other Comprehensive Income
Total before tax	$ (139,714)	$ (118,246)	$ (245,729)	$ (222,564)
Tax impact	27,982	27,788	55,334	49,173
Total reclassifications for the period	(111,732)	(90,458)	(190,395)	(173,391)
Amount Reclassified from Accumulated Other Comprehensive Income
Amount Reclassified from Accumulated Other Comprehensive Income
Total reclassifications for the period	149	201	281	404
Defined Benefit Pension Plans | Amount Reclassified from Accumulated Other Comprehensive Income
Amount Reclassified from Accumulated Other Comprehensive Income
Total before tax	215	283	407	570
Tax impact	(66)	(82)	(126)	(166)
Total reclassifications for the period	149	201	281	404
Amortization of net loss | Amount Reclassified from Accumulated Other Comprehensive Income
Amount Reclassified from Accumulated Other Comprehensive Income
Total before tax	190	257	359	516
Amortization of prior service cost | Amount Reclassified from Accumulated Other Comprehensive Income
Amount Reclassified from Accumulated Other Comprehensive Income
Total before tax	$ 25	$ 26	$ 48	$ 54