ACCUMULATED OTHER COMPREHENSIVE LOSS - Amount Reclassified from AOCL (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Asset Acquisition [Line Items]
Other components of net periodic benefit credit	$ (15,803)	$ (20,215)	$ (14,476)
Tax benefit	(42,489)	6,781	(6,375)
Net income	190,085	51,376	$ 95,263
Reclassification out of Accumulated Other Comprehensive Income | Prior service cost
Asset Acquisition [Line Items]
Other components of net periodic benefit credit	(81)	0
Reclassification out of Accumulated Other Comprehensive Income | Net actuarial loss
Asset Acquisition [Line Items]
Other components of net periodic benefit credit	1,712	0
Reclassification out of Accumulated Other Comprehensive Income | Accumulated Defined Benefit Plans Adjustment Including Portion Attributable to Noncontrolling Interest
Asset Acquisition [Line Items]
Total before tax	1,631	0
Tax benefit	(456)	0
Net income	$ 1,175	$ 0