XML 259 R83.htm IDEA: XBRL DOCUMENT v3.23.3
Segment Information (Schedule Of Selected Supplemental Balance Sheet Information) (Details) - USD ($)
$ in Millions
 12 Months Ended
Sep. 30, 2023
Sep. 30, 2022
Sep. 30, 2021
Segment Reporting Information [Line Items]      
Intercompany sales $ 1,275.7 $ 1,247.4 $ 1,111.0
Operating income 127.4 111.6 131.7
Depreciation and amortization 62.5 60.5 59.6
Capital expenditures (47.6) (54.7) (62.7)
Property, plant and equipment, net 311.7 301.6  
Total assets $ 1,505.0 1,498.1  
Document Period End Date Sep. 30, 2023    
Intangible Assets, Net (Including Goodwill) $ 427.7 459.8  
Restructuring Charges 10.2 7.2 8.0
Inventories 297.9 278.7  
Mueller Co. [Member]      
Segment Reporting Information [Line Items]      
Intercompany sales 634.4 714.1 617.8
Operating income 79.6 118.3 120.9
Depreciation and amortization 32.8 30.0 30.5
Capital expenditures (33.4) (43.4) (51.0)
Intangible Assets, Net (Including Goodwill) 283.8 302.6  
Restructuring Charges 0.0 0.2 0.1
Inventories 173.8 160.5  
Mueller Technologies [Member]      
Segment Reporting Information [Line Items]      
Intercompany sales 641.3 533.3 493.2
Operating income 106.0 48.7 70.3
Depreciation and amortization 29.5 30.3 28.9
Capital expenditures (14.2) (11.3) (11.6)
Intangible Assets, Net (Including Goodwill) 143.9 157.2  
Restructuring Charges 1.7 0.4 (0.4)
Inventories 124.1 118.2  
Corporate [Member]      
Segment Reporting Information [Line Items]      
Intercompany sales 0.0 0.0 0.0
Operating income (58.2) (55.4) (59.5)
Depreciation and amortization 0.2 0.2 0.2
Capital expenditures 0.0 0.0 (0.1)
Intangible Assets, Net (Including Goodwill) 0.0 0.0  
Restructuring Charges 8.5 6.6 $ 8.3
Inventories $ 0.0 $ 0.0