XML 57 R46.htm IDEA: XBRL DOCUMENT v3.8.0.1
Segment Information (Schedule Of Selected Supplemental Balance Sheet Information) (Details) - USD ($)
$ in Millions
 3 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Sep. 30, 2017
Segment Reporting Information [Line Items]      
Net sales, excluding intercompany $ 178.3 $ 167.2  
2013 0.0 1.1  
Operating income 20.7 14.2  
Depreciation and amortization 10.6 10.3  
Restructuring 3.9 1.3  
Payments to Acquire Productive Assets 6.4 4.2  
Total assets 1,220.2   $ 1,258.3
Intangible intangible assets, net 434.6   $ 439.3
Mueller Co. [Member]      
Segment Reporting Information [Line Items]      
Net sales, excluding intercompany 160.1 146.3  
2013 0.0 1.1  
Operating income 28.1 26.2  
Depreciation and amortization 9.1 9.0  
Restructuring 0.0 0.1  
Payments to Acquire Productive Assets 4.8 3.0  
Mueller Technologies [Member]      
Segment Reporting Information [Line Items]      
Net sales, excluding intercompany 18.2 20.9  
2013 0.0 0.0  
Operating income (4.7) (2.2)  
Depreciation and amortization 1.4 1.2  
Restructuring 0.1 0.0  
Payments to Acquire Productive Assets 1.5 1.1  
Corporate [Member]      
Segment Reporting Information [Line Items]      
Operating income (2.7) (9.8)  
Depreciation and amortization 0.1 0.1  
Restructuring 3.8 1.2  
Payments to Acquire Productive Assets $ 0.1 $ 0.1