Consolidated Statements of Earnings - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2022
Income Statement [Abstract]
Net sales	$ 3,324,249	$ 2,914,566	$ 2,382,790
Costs and expenses:
Cost of goods sold	2,447,770	2,236,983	1,857,485
Selling, general and administrative expenses	307,499	269,692	203,005
Research and development costs	140,676	132,095	119,782
Restructuring activities	0	5,172	(3,420)
Interest expense	47,959	47,898	34,545
Interest income	(6,458)	(2,751)	(1,814)
Other (income) expense, net	(67,168)	(50,291)	(26,691)
Total costs and expenses	2,870,278	2,638,798	2,182,892
Earnings before income taxes	453,971	275,768	199,898
Income tax expense	81,000	43,400	28,200
Net earnings	$ 372,971	$ 232,368	$ 171,698
Earnings per share:
Basic earnings per share	$ 6.21	$ 3.88	$ 2.79
Diluted earnings per share	$ 6.01	$ 3.78	$ 2.71
Weighted Average Common Shares Outstanding:
Basic	60,076	59,908	61,517
Diluted	62,084	61,482	63,254