CONSOLIDATED STATEMENTS OF INCOME - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Income Statement [Abstract]
Net sales	$ 6,483,166	$ 5,854,694	$ 5,988,205
Cost of goods sold	5,333,742	4,842,919	4,995,647
Gross profit	1,149,424	1,011,775	992,558
Selling, general and administrative expenses	492,672	438,390	384,377
Rationalization charges	60,509	59,481	8,412
Other pension and postretirement (income) expense	(1,624)	(1,191)	4,333
Income before interest and income taxes	597,867	515,095	595,436
Interest and other debt expense before loss on early extinguishment of debt	189,365	166,369	173,315
Loss on early extinguishment of debt	0	1,056	0
Interest and other debt expense	189,365	167,425	173,315
Income before income taxes	408,502	347,670	422,121
Income Tax Expense (Benefit)	123,259	71,977	96,156
Income before equity in earnings of affiliates	285,243	275,693	325,965
Equity in earnings of affiliates, net of tax	3,160	685	0
Net income	$ 288,403	$ 276,378	$ 325,965
Basic net income per share (in dollars per share)	$ 2.71	$ 2.59	$ 3.00
Diluted net income per share (in dollars per share)	$ 2.70	$ 2.58	$ 2.98