XML 257 R81.htm IDEA: XBRL DOCUMENT v3.23.3
Segment Information (Revenue and Long-Lived Assets by Geographical Areas) (Details) - USD ($)
$ in Millions
 12 Months Ended
Sep. 30, 2023
Sep. 30, 2022
Sep. 30, 2021
Revenues from External Customers and Long-Lived Assets [Line Items]      
Revenues $ 1,275.7 $ 1,247.4 $ 1,111.0
Intangible Assets, Net (Including Goodwill) 427.7 459.8  
Total assets $ 1,505.0 1,498.1  
Document Period End Date Sep. 30, 2023    
Property, plant and equipment, net $ 311.7 301.6  
United States      
Revenues from External Customers and Long-Lived Assets [Line Items]      
Property, plant and equipment, net 295.6 284.9  
Other      
Revenues from External Customers and Long-Lived Assets [Line Items]      
Property, plant and equipment, net 4.2 4.1  
ISRAEL      
Revenues from External Customers and Long-Lived Assets [Line Items]      
Property, plant and equipment, net 11.9 12.6  
Mueller Co. [Member]      
Revenues from External Customers and Long-Lived Assets [Line Items]      
Revenues 634.4 714.1 617.8
Intangible Assets, Net (Including Goodwill) 283.8 302.6  
Mueller Co. [Member] | Central Region [Member]      
Revenues from External Customers and Long-Lived Assets [Line Items]      
Revenues 176.0 190.9 155.1
Mueller Co. [Member] | United States      
Revenues from External Customers and Long-Lived Assets [Line Items]      
Revenues 585.9 653.3 563.6
Mueller Co. [Member] | Canada      
Revenues from External Customers and Long-Lived Assets [Line Items]      
Revenues 36.2 55.0 45.7
Mueller Co. [Member] | Northeast Region [Member] [Member]      
Revenues from External Customers and Long-Lived Assets [Line Items]      
Revenues 130.6 125.3 110.4
Mueller Co. [Member] | Southeast Region [Member]      
Revenues from External Customers and Long-Lived Assets [Line Items]      
Revenues 118.4 154.3 125.7
Mueller Co. [Member] | Western Region [Member]      
Revenues from External Customers and Long-Lived Assets [Line Items]      
Revenues 160.9 182.8 172.4
Mueller Co. [Member] | Other International Locations [Member]      
Revenues from External Customers and Long-Lived Assets [Line Items]      
Revenues 12.3 5.8 8.5
Mueller Technologies [Member]      
Revenues from External Customers and Long-Lived Assets [Line Items]      
Revenues 641.3 533.3 493.2
Intangible Assets, Net (Including Goodwill) 143.9 157.2  
Mueller Technologies [Member] | Central Region [Member]      
Revenues from External Customers and Long-Lived Assets [Line Items]      
Revenues 169.2 142.9 125.6
Mueller Technologies [Member] | United States      
Revenues from External Customers and Long-Lived Assets [Line Items]      
Revenues 576.8 470.3 431.4
Mueller Technologies [Member] | Canada      
Revenues from External Customers and Long-Lived Assets [Line Items]      
Revenues 38.3 39.2 38.1
Mueller Technologies [Member] | Northeast Region [Member] [Member]      
Revenues from External Customers and Long-Lived Assets [Line Items]      
Revenues 151.2 115.1 100.2
Mueller Technologies [Member] | Southeast Region [Member]      
Revenues from External Customers and Long-Lived Assets [Line Items]      
Revenues 137.4 109.4 106.5
Mueller Technologies [Member] | Western Region [Member]      
Revenues from External Customers and Long-Lived Assets [Line Items]      
Revenues 119.0 102.9 99.1
Mueller Technologies [Member] | Other International Locations [Member]      
Revenues from External Customers and Long-Lived Assets [Line Items]      
Revenues 26.2 23.8 23.7
Customer Concentration Risk [Member] | Accounts Receivable [Member] | Ferguson Enterprises      
Revenues from External Customers and Long-Lived Assets [Line Items]      
Accounts and Other Receivables, Net, Current 37.7 $ 38.6  
Customer Concentration Risk [Member] | Accounts Receivable [Member] | Core & Main, Inc.      
Revenues from External Customers and Long-Lived Assets [Line Items]      
Accounts and Other Receivables, Net, Current $ 46.4   $ 52.1
Customer Concentration Risk [Member] | Sales Revenue, Goods, Gross [Member] | Ferguson Enterprises      
Revenues from External Customers and Long-Lived Assets [Line Items]      
10 largest customers 18.00% 20.00% 19.00%
Customer Concentration Risk [Member] | Sales Revenue, Goods, Gross [Member] | Core & Main, Inc.      
Revenues from External Customers and Long-Lived Assets [Line Items]      
10 largest customers 18.00% 21.00% 18.00%