ACCUMULATED OTHER COMPREHENSIVE (LOSS) INCOME - Reclassifications From Accumulated Other Comprehensive Income (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Amount Reclassified from Accumulated Other Comprehensive Income
Total before tax	$ (131,131)	$ (110,049)	$ (353,695)	$ (294,196)
Tax impact	31,209	25,751	80,382	72,265
Total reclassifications for the period	(99,922)	(84,298)	(273,313)	(221,931)
Amount Reclassified from Accumulated Other Comprehensive Income
Amount Reclassified from Accumulated Other Comprehensive Income
Total reclassifications for the period	236	194	640	581
Defined Benefit Pension Plans | Amount Reclassified from Accumulated Other Comprehensive Income
Amount Reclassified from Accumulated Other Comprehensive Income
Amortization of net loss	303	230	819	687
Amortization of prior service cost	29	45	83	133
Total before tax	332	275	902	820
Tax impact	(96)	(81)	(262)	(239)
Total reclassifications for the period	$ 236	$ 194	$ 640	$ 581