Consolidating Guarantor and Non-Guarantor Financial Information (Schedule Of Guarantor Companies) (Details)	12 Months Ended
	Sep. 30, 2013
Anvil International Holdings, LLC [Member]
Entity Incorporation, State Country Name	Delaware
Echologics, LLC [Member]
Entity Incorporation, State Country Name	Delaware
Henry Pratt Company, LLC [Member]
Entity Incorporation, State Country Name	Delaware
Henry Pratt International, LLC [Member]
Entity Incorporation, State Country Name	Delaware
Hydro Gate, LLC [Member]
Entity Incorporation, State Country Name	Delaware
J.B. Smith Mfg. Co., LLC [Member]
Entity Incorporation, State Country Name	Delaware
James Jones Company, LLC [Member]
Entity Incorporation, State Country Name	Delaware
Milliken Valve, LLC [Member]
Entity Incorporation, State Country Name	Delaware
Mueller Co. LLC [Member]
Entity Incorporation, State Country Name	Delaware
Mueller Group, LLC [Member]
Entity Incorporation, State Country Name	Delaware
Mueller Group Co-Issuer, Inc. [Member]
Entity Incorporation, State Country Name	Delaware
Mueller International, L.L.C. [Member]
Entity Incorporation, State Country Name	Delaware
Mueller Property Holdings, LLC [Member]
Entity Incorporation, State Country Name	Delaware
Mueller Co. International Holdings, LLC [Member]
Entity Incorporation, State Country Name	Delaware
Mueller Service California, Inc. [Member]
Entity Incorporation, State Country Name	Delaware
Mueller Service Co., LLC [Member]
Entity Incorporation, State Country Name	Delaware
Mueller Systems, LLC [Member]
Entity Incorporation, State Country Name	Delaware
OSP, LLC [Member]
Entity Incorporation, State Country Name	Delaware
US Pipe Valve & Hydrant LLC [Member]
Entity Incorporation, State Country Name	Delaware