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Cover Page Document
Sep. 30, 2025
Apr. 30, 2025
Document Information [Line Items]    
Entity Central Index Key   0001350593
Current Fiscal Year End Date --09-30  
Entity Emerging Growth Company   false
Title of 12(b) Security   Common Stock, par value $0.01 per share
Written Communications   false
Entity Incorporation, State or Country Code   DE
Entity File Number   001-32892
Entity Tax Identification Number   20-3547095
Entity Address, Address Line One   1200 Abernathy Road N.E.
Entity Address, Address Line Two   Suite 1200
Entity Address, City or Town   Atlanta
Entity Address, State or Province   GA
Entity Address, Postal Zip Code   30328
City Area Code   (770)
Local Phone Number   206-4200
Soliciting Material   false
Pre-commencement Tender Offer   false
Pre-commencement Issuer Tender Offer   false
Trading Symbol   MWA
Security Exchange Name   NYSE
Amendment Flag   false
Document Type   8-K
Document Period End Date   Apr. 30, 2025
Entity Registrant Name   MUELLER WATER PRODUCTS, INC.