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FORM 5500, SCHEDULE H, PART IV LINE 4i — SCHEDULE OF ASSETS (HELD AT END OF YEAR) (Details) - EBP 002 - USD ($)
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
EBP, Schedule of Asset Held for Investment [Line Items]    
Entity tax identification number 41-0907434  
Plan number 002  
Asset held for investment, notes receivable $ 8,600,466  
Asset held for investment, total 1,000,750,090  
Deemed distribution $ 239,318 $ 227,488
Minimum    
EBP, Schedule of Asset Held for Investment [Line Items]    
Participant loan, interest rate 4.25%  
Maximum    
EBP, Schedule of Asset Held for Investment [Line Items]    
Participant loan, interest rate 9.75%  
Investment, Identifier [Axis]: Common/Collective Trusts | BlackRock Total Return L Series    
EBP, Schedule of Asset Held for Investment [Line Items]    
Asset held for investment, investment $ 8,639,360  
Investment, Identifier [Axis]: Common/Collective Trusts | Fidelity Growth Company    
EBP, Schedule of Asset Held for Investment [Line Items]    
Asset held for investment, investment 196,798,535  
Investment, Identifier [Axis]: Common/Collective Trusts | Loomis Small Cap Growth    
EBP, Schedule of Asset Held for Investment [Line Items]    
Asset held for investment, investment 21,898,757  
Investment, Identifier [Axis]: Common/Collective Trusts | RT L&G MSCI EAFE A    
EBP, Schedule of Asset Held for Investment [Line Items]    
Asset held for investment, investment 4,858,545  
Investment, Identifier [Axis]: Common/Collective Trusts | RT L&G RUSSELL 3000    
EBP, Schedule of Asset Held for Investment [Line Items]    
Asset held for investment, investment 111,419,115  
Investment, Identifier [Axis]: Common/Collective Trusts | State Street Real Asset Non-Lending Series Fund Class C    
EBP, Schedule of Asset Held for Investment [Line Items]    
Asset held for investment, investment 759,718  
Investment, Identifier [Axis]: Common/Collective Trusts | Vanguard Target Retirement 2020 Fund    
EBP, Schedule of Asset Held for Investment [Line Items]    
Asset held for investment, investment 13,869,724  
Investment, Identifier [Axis]: Common/Collective Trusts | Vanguard Target Retirement 2025 Fund    
EBP, Schedule of Asset Held for Investment [Line Items]    
Asset held for investment, investment 34,838,597  
Investment, Identifier [Axis]: Common/Collective Trusts | Vanguard Target Retirement 2030 Fund    
EBP, Schedule of Asset Held for Investment [Line Items]    
Asset held for investment, investment 76,500,138  
Investment, Identifier [Axis]: Common/Collective Trusts | Vanguard Target Retirement 2035 Fund    
EBP, Schedule of Asset Held for Investment [Line Items]    
Asset held for investment, investment 88,787,245  
Investment, Identifier [Axis]: Common/Collective Trusts | Vanguard Target Retirement 2040 Fund    
EBP, Schedule of Asset Held for Investment [Line Items]    
Asset held for investment, investment 53,727,712  
Investment, Identifier [Axis]: Common/Collective Trusts | Vanguard Target Retirement 2045 Fund    
EBP, Schedule of Asset Held for Investment [Line Items]    
Asset held for investment, investment 55,982,741  
Investment, Identifier [Axis]: Common/Collective Trusts | Vanguard Target Retirement 2050 Fund    
EBP, Schedule of Asset Held for Investment [Line Items]    
Asset held for investment, investment 51,844,577  
Investment, Identifier [Axis]: Common/Collective Trusts | Vanguard Target Retirement 2055 Fund    
EBP, Schedule of Asset Held for Investment [Line Items]    
Asset held for investment, investment 34,757,933  
Investment, Identifier [Axis]: Common/Collective Trusts | Vanguard Target Retirement 2060 Fund    
EBP, Schedule of Asset Held for Investment [Line Items]    
Asset held for investment, investment 24,143,356  
Investment, Identifier [Axis]: Common/Collective Trusts | Vanguard Target Retirement 2065 Fund    
EBP, Schedule of Asset Held for Investment [Line Items]    
Asset held for investment, investment 7,441,356  
Investment, Identifier [Axis]: Common/Collective Trusts | Vanguard Target Retirement 2070 Fund    
EBP, Schedule of Asset Held for Investment [Line Items]    
Asset held for investment, investment 1,710,006  
Investment, Identifier [Axis]: Common/Collective Trusts | Vanguard Target Retirement Income Fund    
EBP, Schedule of Asset Held for Investment [Line Items]    
Asset held for investment, investment 8,282,690  
Investment, Identifier [Axis]: Interest-Bearing Cash | Vanguard Cash Reserves Federal Money Market    
EBP, Schedule of Asset Held for Investment [Line Items]    
Asset held for investment, investment 265,670  
Investment, Identifier [Axis]: Interest-Bearing Cash | Vanguard Federal Money Market    
EBP, Schedule of Asset Held for Investment [Line Items]    
Asset held for investment, investment 52,525  
Investment, Identifier [Axis]: Mutual Funds | Dodge & Cox International Stock Fund Class X    
EBP, Schedule of Asset Held for Investment [Line Items]    
Asset held for investment, investment 21,908,381  
Investment, Identifier [Axis]: Mutual Funds | Fidelity US Bond Index    
EBP, Schedule of Asset Held for Investment [Line Items]    
Asset held for investment, investment 7,796,581  
Investment, Identifier [Axis]: Mutual Funds | Oakmark Fund    
EBP, Schedule of Asset Held for Investment [Line Items]    
Asset held for investment, investment 44,794,505  
Investment, Identifier [Axis]: Mutual Funds | Vanguard International Growth Fund Adm    
EBP, Schedule of Asset Held for Investment [Line Items]    
Asset held for investment, investment 12,042,662  
Investment, Identifier [Axis]: Mutual Funds | Victory Integrity Small Cap Value Fund R6    
EBP, Schedule of Asset Held for Investment [Line Items]    
Asset held for investment, investment 12,192,271  
Investment, Identifier [Axis]: Stable Value Fund | Fidelity Managed Income Portfolio II, CL 4    
EBP, Schedule of Asset Held for Investment [Line Items]    
Asset held for investment, investment 46,376,346  
Common collective trusts    
EBP, Schedule of Asset Held for Investment [Line Items]    
Asset held for investment, investment 796,260,105  
Mutual funds    
EBP, Schedule of Asset Held for Investment [Line Items]    
Asset held for investment, investment 98,734,400  
Interest-bearing cash    
EBP, Schedule of Asset Held for Investment [Line Items]    
Asset held for investment, investment 318,195  
Pentair common stock    
EBP, Schedule of Asset Held for Investment [Line Items]    
Asset held for investment, investment $ 50,460,578