SEGMENTS - Schedule of Segment Information (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Mar. 31, 2026	Mar. 31, 2025	Mar. 31, 2026	Mar. 31, 2025
Segment Reporting Information
Net Sales	$ 598.7	$ 588.0	$ 1,136.0	$ 1,120.9
Cost of goods sold	437.0	398.2	813.5	731.5
Amortization of intangible assets	4.2	4.2	8.5	8.4
Income tax expense	12.0	19.9	26.8	43.9
Net earnings	33.9	58.7	77.6	135.6
Reportable Segment
Segment Reporting Information
Net Sales	598.7	588.0	1,136.0	1,120.9
Cost of goods sold	437.0	398.2	813.5	731.5
Advertising expenses	36.3	27.6	48.7	42.7
Amortization of intangible assets	4.2	4.2	8.5	8.4
Other segment expenses	55.2	62.9	120.8	127.9
Interest expense, net	20.1	16.5	40.1	30.9
Income tax expense	12.0	19.9	26.8	43.9
Net earnings	$ 33.9	$ 58.7	$ 77.6	$ 135.6