PENSION AND OTHER POSTRETIREMENT BENEFIT PLANS (Detail) - Pension Plans Defined Benefit [Member] - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2026	Mar. 31, 2025
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 3,566	$ 3,748
Interest cost	8,459	8,959
Expected return on plan assets	(16,984)	(17,673)
Amortization of prior service cost	(25)	(8)
Amortization of unrecognized actuarial loss	467	246
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Total	$ (4,517)	$ (4,728)