v3.26.1
Discontinued Operations and Disposal Groups (Details) - USD ($)
3 Months Ended 9 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Sep. 30, 2025
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]          
Discontinued Operation, Gain (Loss) from Disposal of Discontinued Operation, before Income Tax     $ 2,200,000 $ 0  
Income (Loss) from Discontinued Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest $ 1,400,000 $ 7,600,000 (49,700,000) 23,900,000  
Proceeds from Divestiture of Businesses     338,900,000    
Disposal Group, Including Discontinued Operation, Assets, Current 0   0   $ 59,600,000
Disposal Group, Including Discontinued Operation, Assets, Noncurrent 0   0   321,800,000
Disposal Group, Including Discontinued Operation, Liabilities, Current 0   0   5,200,000
Restructuring charges 12,700,000 14,900,000 44,800,000 30,900,000  
Transition services receivable 17.8   17.8    
Transition services payable 32.1   32.1    
Transition services net payable (receivable) 14,300,000   14,300,000    
TransitionServicesIncome 7,700,000   14,400,000    
Operating Model Redesign          
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]          
Severance Costs 1,800,000 5,300,000 2,800,000 5,800,000  
Accelerated depreciation 1,300,000 0 3,400,000 1,100,000  
Consulting, project implementation and management and other exit costs 1,500,000 2,900,000 4,900,000 7,600,000  
Restructuring charges 4,600,000 8,200,000 11,100,000 14,500,000  
Disposal Group, Disposed of by Sale, Not Discontinued Operations | Feminine Care          
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]          
Disposal Group, Including Discontinued Operation, Revenue 0 66,800,000 87,300,000 194,200,000  
Disposal Group, Including Discontinued Operation, Costs of Goods Sold 0 48,300,000 64,100,000 137,300,000  
Disposal Group, Including Discontinued Operation, Gross Profit (Loss) 0 18,500,000 23,200,000 56,900,000  
Disposal Group, Including Discontinued Operation, General and Administrative Expense 0 3,700,000 14,700,000 9,900,000  
Disposal Group, Including Discontinued Operation, Advertising And Sales Promotion Expense 0 4,400,000 3,500,000 14,200,000  
Disposal Group, Including Discontinued Operation, Research And Development Expenses 0 600,000 900,000 1,600,000  
Disposal Group, Including Discontinued Operation, Restructuring Charges 0 1,000,000.0 200,000 1,500,000  
Disposal Group, Including Discontinued Operation, Goodwill Impairment Charges 0 0 37,400,000 0  
Disposal Group, Including Discontinued Operation, Operating Income (Loss) 0 8,700,000 (33,500,000) 29,700,000  
Discontinued Operation, Gain (Loss) from Disposal of Discontinued Operation, before Income Tax 0 0 2,200,000 0  
Discontinued Operation, Income (Loss) from Discontinued Operation, before Income Tax 0 8,700,000 (35,700,000) 29,700,000  
Discontinued Operation, Tax Effect of Income (Loss) from Discontinued Operation During Phase-out Period (1,400,000) 1,100,000 14,000,000.0 5,800,000  
Income (Loss) from Discontinued Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest 1,400,000 7,600,000 (49,700,000) 23,900,000  
Proceeds from Divestiture of Businesses     338,900,000    
Direct Divestiture Of Business Costs     9,500,000    
Discontinued Operation, Divestiture of Businesses, Net Carrying Value     331,600,000    
Disposal Group, Including Discontinued Operation, Inventory         50,900,000
Disposal Group, Including Discontinued Operation, Other Assets, Current         8,700,000
Disposal Group, Including Discontinued Operation, Assets, Current         59,600,000
Disposal Group, Including Discontinued Operation, Property, Plant and Equipment         74,300,000
Disposal Group, Including Discontinued Operation, Goodwill         154,000,000.0
Disposal Group, Including Discontinued Operation, Intangible Assets         93,100,000
Disposal Group, Including Discontinued Operation, Other Assets         400,000
Disposal Group, Including Discontinued Operation, Assets, Noncurrent         321,800,000
Disposal Group, Including Discontinued Operation, Assets         381,400,000
Disposal Group, Including Discontinued Operation, Prepaid and Other Assets, Current         5,200,000
Disposal Group, Including Discontinued Operation, Liabilities, Current         5,200,000
Disposal Group, Including Discontinued Operation, Liabilities         $ 5,200,000
Capital Expenditure, Discontinued Operations 0 200,000 1,200,000 3,200,000  
Depreciation and Amortization, Discontinued Operations $ 0 $ 3,700,000 $ 1,300,000 $ 11,600,000