v3.26.1
Schedule H, 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 20-0812170  
Plan number 002  
Current value $ 594,028,471  
Notes receivable from participants, cost 0  
Notes receivable from participants, current value 3,686,101  
Current value of investments and participant loans $ 597,714,572  
Minimum    
EBP, Schedule of Asset Held for Investment [Line Items]    
Notes receivable from participants, interest rate 4.25% 4.25%
Maximum    
EBP, Schedule of Asset Held for Investment [Line Items]    
Notes receivable from participants, interest rate 9.50% 9.50%
Investment, Identifier [Axis]: Albemarle Corporation Common Stock Fund | Common stock; par value $0.01    
EBP, Schedule of Asset Held for Investment [Line Items]    
Common stock, par value $ 0.01  
Number of shares 51,372  
Current value $ 7,266,120  
Investment, Identifier [Axis]: American Century Small Cap Fund | Mutual fund    
EBP, Schedule of Asset Held for Investment [Line Items]    
Number of shares 540,886  
Current value $ 4,857,158  
Investment, Identifier [Axis]: BlackRock LifePath Indx 2030 | Mutual fund    
EBP, Schedule of Asset Held for Investment [Line Items]    
Number of shares 1,206,069  
Current value $ 22,758,530  
Investment, Identifier [Axis]: BlackRock LifePath Indx 2035 | Mutual fund    
EBP, Schedule of Asset Held for Investment [Line Items]    
Number of shares 1,157,508  
Current value $ 24,643,350  
Investment, Identifier [Axis]: BlackRock LifePath Indx 2040 | Mutual fund    
EBP, Schedule of Asset Held for Investment [Line Items]    
Number of shares 916,749  
Current value $ 21,351,083  
Investment, Identifier [Axis]: BlackRock LifePath Indx 2045 | Mutual fund    
EBP, Schedule of Asset Held for Investment [Line Items]    
Number of shares 709,083  
Current value $ 18,244,708  
Investment, Identifier [Axis]: BlackRock LifePath Indx 2050 | Mutual fund    
EBP, Schedule of Asset Held for Investment [Line Items]    
Number of shares 607,821  
Current value $ 16,587,432  
Investment, Identifier [Axis]: BlackRock LifePath Indx 2055 | Mutual fund    
EBP, Schedule of Asset Held for Investment [Line Items]    
Number of shares 324,492  
Current value $ 9,267,486  
Investment, Identifier [Axis]: BlackRock LifePath Indx 2060 | Mutual fund    
EBP, Schedule of Asset Held for Investment [Line Items]    
Number of shares 169,968  
Current value $ 4,366,468  
Investment, Identifier [Axis]: BlackRock LifePath Indx 2065 | Mutual fund    
EBP, Schedule of Asset Held for Investment [Line Items]    
Number of shares 46,878  
Current value $ 850,841  
Investment, Identifier [Axis]: BlackRock LifePath Indx RET | Mutual fund    
EBP, Schedule of Asset Held for Investment [Line Items]    
Number of shares 932,757  
Current value $ 13,898,080  
Investment, Identifier [Axis]: BlackRock Sustainable Balanced Fund | Mutual fund    
EBP, Schedule of Asset Held for Investment [Line Items]    
Number of shares 185,863  
Current value $ 5,098,233  
Investment, Identifier [Axis]: Employee deferrals | Common stock; no par value    
EBP, Schedule of Asset Held for Investment [Line Items]    
Number of shares 128,224  
Current value $ 88,123,246  
Investment, Identifier [Axis]: Franklin Small-Mid Cap Growth Fund | Mutual fund    
EBP, Schedule of Asset Held for Investment [Line Items]    
Number of shares 253,581  
Current value $ 11,814,340  
Investment, Identifier [Axis]: Invesco Growth & Income Fund | Mutual fund    
EBP, Schedule of Asset Held for Investment [Line Items]    
Number of shares 396,538  
Current value $ 9,041,066  
Investment, Identifier [Axis]: MFS International Diversification Fund | Mutual fund    
EBP, Schedule of Asset Held for Investment [Line Items]    
Number of shares 267,000  
Current value $ 7,417,269  
Investment, Identifier [Axis]: Matching contributions | Common stock; no par value    
EBP, Schedule of Asset Held for Investment [Line Items]    
Number of shares 161,712  
Current value $ 111,138,413  
Matching contributions, cost $ 37,005,998  
Investment, Identifier [Axis]: PIMCO Total Return Fund | Mutual fund    
EBP, Schedule of Asset Held for Investment [Line Items]    
Number of shares 1,136,418  
Current value $ 10,068,666  
Investment, Identifier [Axis]: Tredegar Corporation Common Stock Fund | Common stock; no par value    
EBP, Schedule of Asset Held for Investment [Line Items]    
Number of shares 26,188  
Current value $ 188,031  
Investment, Identifier [Axis]: Vanguard Federal Money Market Inv | Money Market    
EBP, Schedule of Asset Held for Investment [Line Items]    
Number of shares 36,958,229  
Current value $ 36,958,229  
Investment, Identifier [Axis]: Vanguard Mid Cap Index Fund | Mutual fund    
EBP, Schedule of Asset Held for Investment [Line Items]    
Number of shares 77,133  
Current value $ 6,122,823  
Investment, Identifier [Axis]: Vanguard Mid Cap Value Fund | Mutual fund    
EBP, Schedule of Asset Held for Investment [Line Items]    
Number of shares 50,264  
Current value $ 4,616,735  
Investment, Identifier [Axis]: Vanguard Small Cap Growth ADM | Mutual fund    
EBP, Schedule of Asset Held for Investment [Line Items]    
Number of shares 27,604  
Current value $ 2,929,381  
Investment, Identifier [Axis]: Vanguard Small Cap Index Fund | Mutual fund    
EBP, Schedule of Asset Held for Investment [Line Items]    
Number of shares 54,720  
Current value $ 6,762,326  
Investment, Identifier [Axis]: Vanguard Total Bond Market Fund | Mutual fund    
EBP, Schedule of Asset Held for Investment [Line Items]    
Number of shares 1,291,594  
Current value $ 12,618,875  
Investment, Identifier [Axis]: Vanguard US Growth Fund | Mutual fund    
EBP, Schedule of Asset Held for Investment [Line Items]    
Number of shares 96,426  
Current value $ 18,808,784  
Investment, Identifier [Axis]: iShares MSCI EAFE Intl Idx Fund | Mutual fund    
EBP, Schedule of Asset Held for Investment [Line Items]    
Number of shares 683,589  
Current value $ 13,247,956  
Investment, Identifier [Axis]: iShares S&P 500 Index Fund | Mutual fund    
EBP, Schedule of Asset Held for Investment [Line Items]    
Number of shares 131,852  
Current value $ 104,982,842