Basis of Presentation and Description of Business	12 Months Ended
Basis of Presentation and Description of Business	Dec. 31, 2025
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation and Description of Business	Basis of Presentation and Description of Business The consolidated financial statements included herein have been prepared by Zurn Elkay Water Solutions Corporation ("Zurn Elkay" or the "Company"), in accordance with accounting principles generally accepted in the United States ("GAAP") pursuant to the rules and regulations of the Securities and Exchange Commission. The consolidated financial statements include the accounts of the Company and its subsidiaries. All intercompany balances and transactions have been eliminated in consolidation. In the opinion of management, the consolidated financial statements include all adjustments necessary for a fair presentation of the financial position and the results of operations for the periods presented. U.S. Pension Plan Termination & Settlement On January 30, 2025, the Company's Board of Directors approved a resolution to terminate the Company's U.S. defined benefit pension plan (the "Pension Plan") with the full freeze of benefit accruals under the Pension Plan effective March 31, 2025 and the termination of the Pension Plan effective April 1, 2025. The Pension Plan freeze resulted in a curtailment gain of $0.7 million in the first quarter of 2025. Pension Plan participants were provided the opportunity to receive their full accrued benefits from the Pension Plan assets by either electing immediate lump sum distributions or annuity contracts with a qualifying third-party annuity provider. During the quarter ended September 30, 2025, the Company entered into an agreement to purchase annuities from a third-party annuity provider and contributed $4.3 million to fund the liquidation of the Pension Plan. As a result, Pension Plan liabilities were settled and the Pension Plan was exited during the quarter ended September 30, 2025, resulting in a pre-tax settlement gain of $10.0 million from accumulated other comprehensive loss to other income (expense), net in the consolidated statements of operations. Divestiture of Asbestos Liabilities and Certain Assets On December 15, 2023, Zurn Holdings, Inc. (“Holdings”) sold all of the equity interests of its direct subsidiary Zurn Industries, LLC (“Zurn Industries”), together with Zurn Industries’ direct and indirect subsidiaries that primarily held asbestos liabilities, certain assets and cash, in a stock sale transaction to an unaffiliated buyer (“Sale Transaction”). As a result of the Sale Transaction, all asbestos obligations and liabilities, related insurance assets and associated deferred taxes, and other assets sold to the buyer, have been removed from the Company’s consolidated balance sheet effective December 15, 2023 and the Company no longer has any obligation with respect to pending and future asbestos claims related to the divested entities. A loss on the divestiture of asbestos liabilities and certain assets of $11.4 million was recognized in the consolidated statements of operations for the twelve months ended December 31, 2023. Spin-Off of Process & Motion Control Segment On October 4, 2021, the Company completed a Reverse Morris Trust tax-free spin-off transaction (the “Spin-Off Transaction”). Following completion of the Spin-Off Transaction, the Company's name was changed to “Zurn Water Solutions Corporation” and was subsequently changed to "Zurn Elkay Water Solutions Corporation". As a result of the Spin-Off Transaction, in accordance with the authoritative guidance, the operating results of PMC are reported as discontinued operations in the consolidated statements of operations for all periods presented. The consolidated statements of cash flows for the years ended December 31, 2025, 2024, and 2023 have not been adjusted to separately disclose cash flows related to the discontinued operations. See Note 3, Discontinued Operations for additional information. The Company Zurn Elkay is a growth-oriented, pure-play water management business that designs, procures, manufactures, and markets what the Company believes to be the broadest sustainable product portfolio of specification-driven water management solutions to improve health, hydration, human safety and the environment. The Company's product portfolio includes professional grade water safety and control products, flow systems products, hygienic and environmental products, and filtered drinking water products for public and private spaces that deliver superior value to building owners, positively impact the environment and human hygiene and reduce product installation time. The Company's heritage of innovation and specification has allowed it to provide highly-engineered, mission-critical solutions to customers for decades and affords it the privilege of having long-term, valued relationships with market leaders. The Company operates in a disciplined way and the Zurn Elkay Business System (“ZEBS”) is its operating philosophy. Grounded in the spirit of continuous improvement, ZEBS creates a scalable, process-based framework that focuses on driving superior customer satisfaction and financial results by targeting world-class operating performance throughout all aspects of its business.