Condensed Consolidated Statements of Earnings - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Mar. 31, 2024	Mar. 31, 2023
Income Statement [Abstract]
Net sales	$ 835,343	$ 718,214	$ 1,622,073	$ 1,336,833
Costs and expenses:
Cost of goods sold	600,954	559,149	1,183,335	1,051,812
Selling, general and administrative expenses	81,447	75,578	155,958	138,765
Research and development costs	36,465	37,777	67,259	66,411
Restructuring charges		5,172		5,172
Interest expense	11,530	12,845	22,966	23,987
Interest income	(1,293)	(508)	(2,766)	(874)
Other (income) expense, net	(14,384)	(12,040)	(35,023)	(20,430)
Total costs and expenses	714,719	677,973	1,391,729	1,264,843
Earnings before income taxes	120,624	40,241	230,344	71,990
Income tax expense	23,068	4,730	42,744	6,873
Net earnings	$ 97,556	$ 35,511	$ 187,600	$ 65,117
Earnings per share:
Basic earnings per share	$ 1.61	$ 0.59	$ 3.12	$ 1.09
Diluted earnings per share	$ 1.56	$ 0.58	$ 3.02	$ 1.07
Weighted Average Common Shares Outstanding:
Basic	60,427	59,807	60,223	59,736
Diluted	62,365	61,227	62,106	61,083