v3.26.1
Employee Benefit Plan, Schedule, Asset Held for Investment (Details) - EBP 008
$ in Millions
12 Months Ended
Dec. 31, 2025
USD ($)
EBP, Schedule of Asset Held for Investment [Line Items]  
Entity tax identification number 88-3479920
Plan number 008
Total Investments $ 674.8
Participant Loans 9.9
Collective trust funds  
EBP, Schedule of Asset Held for Investment [Line Items]  
Total Investments 616.0
Mutual funds  
EBP, Schedule of Asset Held for Investment [Line Items]  
Total Investments 35.4
Self-directed brokerage accounts  
EBP, Schedule of Asset Held for Investment [Line Items]  
Total Investments $ 19.8
Minimum  
EBP, Schedule of Asset Held for Investment [Line Items]  
Interest rate (as a percent) 3.25%
Maximum  
EBP, Schedule of Asset Held for Investment [Line Items]  
Interest rate (as a percent) 9.50%
Investment, Identifier [Axis]: BlackRock ACWI ex-U.S. IMI Index | Collective trust funds  
EBP, Schedule of Asset Held for Investment [Line Items]  
Total Investments $ 13.4
Investment, Identifier [Axis]: BlackRock Equity Index | Collective trust funds  
EBP, Schedule of Asset Held for Investment [Line Items]  
Total Investments 149.3
Investment, Identifier [Axis]: BlackRock Extended Market Index | Collective trust funds  
EBP, Schedule of Asset Held for Investment [Line Items]  
Total Investments 15.3
Investment, Identifier [Axis]: BlackRock LifePath Index 2030 | Collective trust funds  
EBP, Schedule of Asset Held for Investment [Line Items]  
Total Investments 68.4
Investment, Identifier [Axis]: BlackRock LifePath Index 2035 | Collective trust funds  
EBP, Schedule of Asset Held for Investment [Line Items]  
Total Investments 68.6
Investment, Identifier [Axis]: BlackRock LifePath Index 2040 | Collective trust funds  
EBP, Schedule of Asset Held for Investment [Line Items]  
Total Investments 67.4
Investment, Identifier [Axis]: BlackRock LifePath Index 2045 | Collective trust funds  
EBP, Schedule of Asset Held for Investment [Line Items]  
Total Investments 50.9
Investment, Identifier [Axis]: BlackRock LifePath Index 2050 | Collective trust funds  
EBP, Schedule of Asset Held for Investment [Line Items]  
Total Investments 41.6
Investment, Identifier [Axis]: BlackRock LifePath Index 2055 | Collective trust funds  
EBP, Schedule of Asset Held for Investment [Line Items]  
Total Investments 32.4
Investment, Identifier [Axis]: BlackRock LifePath Index 2060 | Collective trust funds  
EBP, Schedule of Asset Held for Investment [Line Items]  
Total Investments 17.1
Investment, Identifier [Axis]: BlackRock LifePath Index 2065 | Collective trust funds  
EBP, Schedule of Asset Held for Investment [Line Items]  
Total Investments 8.9
Investment, Identifier [Axis]: BlackRock LifePath Index Retirement | Collective trust funds  
EBP, Schedule of Asset Held for Investment [Line Items]  
Total Investments 47.5
Investment, Identifier [Axis]: BlackRock Strategic Completion Fund | Collective trust funds  
EBP, Schedule of Asset Held for Investment [Line Items]  
Total Investments 0.5
Investment, Identifier [Axis]: BlackRock US Debt Index | Collective trust funds  
EBP, Schedule of Asset Held for Investment [Line Items]  
Total Investments 6.5
Investment, Identifier [Axis]: BlackRock US Total Return | Collective trust funds  
EBP, Schedule of Asset Held for Investment [Line Items]  
Total Investments 14.0
Investment, Identifier [Axis]: Dodge & Cox International Stock | Mutual funds  
EBP, Schedule of Asset Held for Investment [Line Items]  
Total Investments 14.4
Investment, Identifier [Axis]: Invesco Stable Value | Collective trust funds  
EBP, Schedule of Asset Held for Investment [Line Items]  
Total Investments 14.2
Investment, Identifier [Axis]: MasterBrand, Inc. Common Stock, Company common stock  
EBP, Schedule of Asset Held for Investment [Line Items]  
Total Investments 3.6
Investment, Identifier [Axis]: Segall Bryant & Hamill Small Cap Value | Mutual funds  
EBP, Schedule of Asset Held for Investment [Line Items]  
Total Investments 5.1
Investment, Identifier [Axis]: T. Rowe Price Stable Value | Collective trust funds  
EBP, Schedule of Asset Held for Investment [Line Items]  
Total Investments 0.0
Investment, Identifier [Axis]: William Blair Small Cap Growth | Mutual funds  
EBP, Schedule of Asset Held for Investment [Line Items]  
Total Investments $ 15.9