v3.26.1
Investments (Details) - EBP 026 - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
EBP, Fully Benefit-Responsive Investment Contract [Line Items]    
Minimum crediting rate 0.00%  
Total investments $ 1,503,371 $ 1,627,713
Investment, Identifier [Axis]: Collective Trusts, SSGA Retirement 2020 Fund    
EBP, Fully Benefit-Responsive Investment Contract [Line Items]    
Total investments 0 28,275
Investment, Identifier [Axis]: Collective Trusts, SSGA Retirement 2025 Fund    
EBP, Fully Benefit-Responsive Investment Contract [Line Items]    
Total investments 67,324 77,155
Investment, Identifier [Axis]: Collective Trusts, SSGA Retirement 2030 Fund    
EBP, Fully Benefit-Responsive Investment Contract [Line Items]    
Total investments 111,669 131,363
Investment, Identifier [Axis]: Collective Trusts, SSGA Retirement 2035 Fund    
EBP, Fully Benefit-Responsive Investment Contract [Line Items]    
Total investments 99,012 98,764
Investment, Identifier [Axis]: Collective Trusts, SSGA Retirement 2040 Fund    
EBP, Fully Benefit-Responsive Investment Contract [Line Items]    
Total investments 95,936 96,440
Investment, Identifier [Axis]: Collective Trusts, SSGA Retirement 2045 Fund    
EBP, Fully Benefit-Responsive Investment Contract [Line Items]    
Total investments 49,670 47,058
Investment, Identifier [Axis]: Collective Trusts, SSGA Retirement 2050 Fund    
EBP, Fully Benefit-Responsive Investment Contract [Line Items]    
Total investments 58,494 58,436
Investment, Identifier [Axis]: Collective Trusts, SSGA Retirement 2055 Fund    
EBP, Fully Benefit-Responsive Investment Contract [Line Items]    
Total investments 42,025 37,803
Investment, Identifier [Axis]: Collective Trusts, SSGA Retirement 2060 Fund    
EBP, Fully Benefit-Responsive Investment Contract [Line Items]    
Total investments 25,304 23,523
Investment, Identifier [Axis]: Collective Trusts, SSGA Retirement 2065 Fund    
EBP, Fully Benefit-Responsive Investment Contract [Line Items]    
Total investments 16,976 13,020
Investment, Identifier [Axis]: Collective Trusts, SSGA Retirement Income Fund    
EBP, Fully Benefit-Responsive Investment Contract [Line Items]    
Total investments 32,879 11,286
Investment, Identifier [Axis]: Collective Trusts, Bond Market Index Fund    
EBP, Fully Benefit-Responsive Investment Contract [Line Items]    
Total investments 104,753 115,986
Investment, Identifier [Axis]: Collective Trusts, International Stock Index Fund    
EBP, Fully Benefit-Responsive Investment Contract [Line Items]    
Total investments 115,027 115,921
Investment, Identifier [Axis]: Collective Trusts, Russell Small Cap Index Fund    
EBP, Fully Benefit-Responsive Investment Contract [Line Items]    
Total investments 51,978 59,334
Investment, Identifier [Axis]: Collective Trusts, S&P 500 Index Fund    
EBP, Fully Benefit-Responsive Investment Contract [Line Items]    
Total investments 362,735 392,516
Investment, Identifier [Axis]: Collective Trusts, S&P Mid-Cap Fund    
EBP, Fully Benefit-Responsive Investment Contract [Line Items]    
Total investments 111,178 126,162
Investment, Identifier [Axis]: Common Stock and Mutual Funds, Self-Managed Account    
EBP, Fully Benefit-Responsive Investment Contract [Line Items]    
Total investments 9,576 9,413
Investment, Identifier [Axis]: Common Stock and Mutual Funds, Sonoco Stock Fund    
EBP, Fully Benefit-Responsive Investment Contract [Line Items]    
Total investments 33,124 41,050
Investment, Identifier [Axis]: Stable Value Fund, Short-Term Investment Fund II    
EBP, Fully Benefit-Responsive Investment Contract [Line Items]    
Total investments 2,940 4,507
Investment, Identifier [Axis]: Stable Value Fund, Synthetic guaranteed investment contracts    
EBP, Fully Benefit-Responsive Investment Contract [Line Items]    
Total investments 112,771 139,701
Common Stock and Mutual Funds    
EBP, Fully Benefit-Responsive Investment Contract [Line Items]    
Total investments 42,700 50,463
Collective Trusts    
EBP, Fully Benefit-Responsive Investment Contract [Line Items]    
Total investments 1,344,960 1,433,042
Stable Value Fund    
EBP, Fully Benefit-Responsive Investment Contract [Line Items]    
Total investments $ 115,711 $ 144,208