v3.25.4
Segments - Schedule of Segment Reporting Information, by Segment (Details) - USD ($)
$ in Millions
 3 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Segment Reporting Information [Line Items]    
Net sales $ 778.9 $ 731.7
Cost of products sold 522.3 462.1
Advertising and sales promotion expense 49.2 53.4
Earnings (loss) before income taxes (4.8) 30.1
Depreciation and amortization 31.6 31.8
Acquisition and integration costs (0.5) (1.2)
Amortization of intangible assets (14.0) (14.7)
Loss on extinguishment/modification of debt (0.9) (0.1)
Operating Segments    
Segment Reporting Information [Line Items]    
Net sales 778.9 731.7
Cost of products sold 507.0 438.7
Advertising and sales promotion expense 49.2 53.4
Other segment items 107.9 99.8
Earnings (loss) before income taxes 114.8 139.8
Depreciation and amortization 17.6 17.1
Operating Segments | Batteries & Lights    
Segment Reporting Information [Line Items]    
Net sales 685.2 632.4
Cost of products sold 441.8 380.2
Advertising and sales promotion expense 43.6 47.4
Other segment items 94.1 85.5
Earnings (loss) before income taxes 105.7 119.3
Depreciation and amortization 14.7 14.3
Operating Segments | Auto Care    
Segment Reporting Information [Line Items]    
Net sales 93.7 99.3
Cost of products sold 65.2 58.5
Advertising and sales promotion expense 5.6 6.0
Other segment items 13.8 14.3
Earnings (loss) before income taxes 9.1 20.5
Depreciation and amortization 2.9 2.8
Corporate    
Segment Reporting Information [Line Items]    
General corporate and other expenses (33.1) (27.4)
Restructuring and related costs (30.9) (20.3)
Network transition costs 0.0 (14.0)
Acquisition and integration costs (0.5) (1.2)
Amortization of intangible assets (14.0) (14.7)
Interest expense (39.1) (37.0)
Loss on extinguishment/modification of debt (0.9) (0.1)
Other items, net $ (1.1) $ 5.0