Condensed Consolidated Statements of Earnings - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 31, 2025	Mar. 31, 2024	Mar. 31, 2025	Mar. 31, 2024
Income Statement [Abstract]
Net sales	$ 883,629	$ 835,343	$ 1,656,354	$ 1,622,073
Costs and expenses:
Cost of goods sold	643,530	600,954	1,226,621	1,183,335
Selling, general and administrative expenses	83,842	81,447	153,538	155,958
Research and development costs	37,230	36,465	67,437	67,259
Interest expense	11,889	11,530	24,230	22,966
Interest income	(1,021)	(1,293)	(2,398)	(2,766)
Other (income) expense, net	(24,804)	(14,384)	(47,891)	(35,023)
Total costs and expenses	750,666	714,719	1,421,537	1,391,729
Earnings before income taxes	132,963	120,624	234,817	230,344
Income tax expense	24,014	23,068	38,777	42,744
Net earnings	$ 108,949	$ 97,556	$ 196,040	$ 187,600
Earnings per share:
Basic earnings per share	$ 1.83	$ 1.61	$ 3.3	$ 3.12
Diluted earnings per share	$ 1.78	$ 1.56	$ 3.2	$ 3.02
Weighted Average Common Shares Outstanding:
Basic	59,432	60,427	59,323	60,223
Diluted	61,344	62,365	61,258	62,106