CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited) - USD ($) shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Mar. 31, 2026	Mar. 31, 2025	Mar. 31, 2026	Mar. 31, 2025
Income Statement [Abstract]
Net Sales	$ 598.7	$ 588.0	$ 1,136.0	$ 1,120.9
Cost of goods sold	437.0	398.2	813.5	731.5
Gross Profit	161.7	189.8	322.5	389.4
Selling, general and administrative expenses	91.5	90.5	169.5	170.6
Amortization of intangible assets	4.2	4.2	8.5	8.4
Operating Profit	66.0	95.1	144.5	210.4
Interest expense, net	20.1	16.5	40.1	30.9
Earnings before Income Taxes	45.9	78.6	104.4	179.5
Income tax expense	12.0	19.9	26.8	43.9
Net Earnings	$ 33.9	$ 58.7	$ 77.6	$ 135.6
Earnings per share of Common Stock, basic (in USD per share)	$ 0.29	$ 0.46	$ 0.66	$ 1.06
Earnings per share of Common Stock, diluted (in USD per share)	$ 0.29	$ 0.45	$ 0.65	$ 1.04
Weighted-Average Common Shares Outstanding, Basic (in shares)	117.3	128.2	118.3	128.5
Weighted-Averages Common Shares Outstanding, Diluted (in shares)	117.5	129.9	118.7	130.5