Consolidated Statements of Earnings - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2021
Income Statement [Abstract]
Net sales	$ 2,914,566	$ 2,382,790	$ 2,245,832
Costs and expenses:
Cost of goods sold	2,236,983	1,857,485	1,694,774
Selling, general and administrative expenses	269,692	203,005	186,866
Research and development costs	132,095	119,782	117,091
Restructuring activities	5,172	(3,420)	5,008
Interest expense	47,898	34,545	34,282
Interest income	(2,751)	(1,814)	(1,495)
Other (income) expense, net	(50,291)	(26,691)	(36,493)
Total costs and expenses	2,638,798	2,182,892	2,000,033
Earnings before income taxes	275,768	199,898	245,799
Income tax expense	43,400	28,200	37,150
Net earnings	$ 232,368	$ 171,698	$ 208,649
Earnings per share:
Basic earnings per share	$ 3.88	$ 2.79	$ 3.30
Diluted earnings per share	$ 3.78	$ 2.71	$ 3.18
Weighted Average Common Shares Outstanding:
Basic	59,908	61,517	63,287
Diluted	61,482	63,254	65,555