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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% |

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