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Cover Page - USD ($)
$ in Billions
12 Months Ended
Dec. 31, 2025
Feb. 04, 2026
Jun. 30, 2025
Cover [Abstract]      
Document Type 10-K    
Document Annual Report true    
Document Period End Date Dec. 31, 2025    
Current Fiscal Year End Date --12-31    
Document Transition Report false    
Entity Registrant Name ZURN ELKAY WATER SOLUTIONS CORPORATION    
Entity Incorporation, State or Country Code DE    
Entity File Number 001-35475    
Entity Tax Identification Number 20-5197013    
Entity Address, Address Line One 511 W. Freshwater Way    
Entity Address, City or Town Milwaukee,    
Entity Address, State or Province WI    
Entity Address, Postal Zip Code 53204    
City Area Code 855    
Local Phone Number 480-5050    
Title of 12(b) Security Common Stock $.01 par value    
Trading Symbol ZWS    
Security Exchange Name NYSE    
Entity Well-known Seasoned Issuer Yes    
Entity Voluntary Filers No    
Entity Current Reporting Status Yes    
Entity Interactive Data Current Yes    
Entity Filer Category Large Accelerated Filer    
Entity Small Business false    
Entity Emerging Growth Company false    
ICFR Auditor Attestation Flag true    
Document Financial Statement Error Correction [Flag] false    
Entity Shell Company false    
Entity Public Float     $ 6.0
Entity Common Stock, Shares Outstanding   166,797,974  
Documents Incorporated by Reference
Part III of this Report on Form 10-K incorporates by reference certain information from the Proxy Statement for the Registrant's annual meeting of stockholders, to be held on or about April 30, 2026, which Proxy Statement will be subsequently filed.
   
Entity Central Index Key 0001439288    
Amendment Flag false    
Document Fiscal Year Focus 2025    
Document Fiscal Period Focus FY