v3.25.4
Reclassification out of Accumulated Other Comprehensive Income (Details) - USD ($)
$ in Millions
 3 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]    
Cost of products sold $ (1.1) $ 5.0
Interest expense 39.1 37.0
Cost of products sold 522.3 462.1
Income tax expense (1.4) 7.8
Net earnings (3.4) 22.3
Amount Reclassified from AOCI    
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]    
Net earnings (0.8) (5.2)
Other Comprehensive Income, Cash Flow Hedge, Adjustment | Amount Reclassified from AOCI    
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]    
Cost of products sold 1.6 (0.1)
Interest expense (4.6) (6.7)
Cost of products sold 0.6 (1.1)
Earnings before income taxes (2.4) (7.9)
Income tax expense 0.6 1.9
Net earnings (1.8) (6.0)
Amortization of defined benefit pension items | Amount Reclassified from AOCI    
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]    
Actuarial loss 1.3 1.0
Income tax expense (0.3) (0.2)
Net earnings $ 1.0 $ 0.8