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Transactions With Related Party (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Related Party Transaction [Line Items]
Sales	$ 1,815,219	$ 2,278,072	$ 3,359,548	$ 4,604,354
Unconsolidated variable interest entity [Member]
Related Party Transaction [Line Items]
Sales	3,100	3,500	6,100	7,200
Cost of sales from related party	$ 21,100	$ 23,500	$ 41,200	$ 44,300
LouisianaTimberProcurementCompanyLLC [Member] | Unconsolidated variable interest entity [Member]
Related Party Transaction [Line Items]
Variable interest entity, ownership percentage			50.00%
LouisianaTimberProcurementCompanyLLC [Member] | Packaging Corporation of America (PCA) [Member] | Variable Interest Entity, Primary Beneficiary [Member]
Related Party Transaction [Line Items]
Variable interest entity, ownership percentage			50.00%

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