Condensed Consolidated Statements of Income - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Income Statement [Abstract]
Net sales	$ 2,008,739	$ 1,745,124	$ 5,014,561	$ 4,443,527
Cost of goods sold	1,681,489	1,451,831	4,117,817	3,670,751
Gross profit	327,250	293,293	896,744	772,776
Selling, general and administrative expenses	122,210	106,405	373,133	314,582
Rationalization charges	7,189	19,483	28,012	38,033
Other pension and postretirement (income) expense	(807)	118	(1,134)	(698)
Income before interest and income taxes	198,658	167,287	496,733	420,859
Interest and other debt expense	49,989	41,871	141,616	121,861
Income before income taxes	148,669	125,416	355,117	298,998
Provision for income taxes	36,151	25,363	87,410	67,684
Income before equity in earnings of affiliates	112,518	100,053	267,707	231,314
Equity in earnings of affiliates, net of tax	775	0	2,492	0
Net income	$ 113,293	$ 100,053	$ 270,199	$ 231,314
Earnings per share
Basic net income per share (usd per share)	$ 1.06	$ 0.94	$ 2.53	$ 2.17
Diluted net income per share (usd per share)	$ 1.06	$ 0.93	$ 2.52	$ 2.16
Weighted average number of shares
Basic (in shares)	106,620	106,847	106,861	106,776
Effect of dilutive securities (in shares)	183	290	268	292
Diluted (in shares)	106,803	107,137	107,129	107,068