v3.26.1
Transactions With Related Party (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Related Party Transaction [Line Items]        
Sales $ 1,831,335 $ 1,740,114 $ 3,329,949 $ 3,276,608
Unconsolidated variable interest entity        
Related Party Transaction [Line Items]        
Sales 2,600 2,200 4,700 3,800
Cost of sales from related party $ 21,400 $ 17,900 $ 39,400 $ 32,800
Louisiana Timber Procurement Company LLC | Variable Interest Entity, Primary Beneficiary | Packaging Corporation of America (PCA)        
Related Party Transaction [Line Items]        
Variable interest entity, ownership percentage     50.00%  
Louisiana Timber Procurement Company LLC | Unconsolidated variable interest entity        
Related Party Transaction [Line Items]        
Variable interest entity, ownership percentage     50.00%