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Transactions with Related Parties (Details) - Unconsolidated variable interest entity [Member] - Louisiana Timber Procurement Company, L.L.C. (LTP) [Member] - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Related Party Transaction [Line Items]      
Variable Interest Entity, Ownership Percentage 50.00%    
Revenue from Related Parties $ 17.4 $ 20.7 $ 28.7
Cost of Sales [Member]      
Related Party Transaction [Line Items]      
Related parties amount in cost of sales $ 87.2 $ 88.8 $ 75.8
Packaging Corporation of America (PCA) [Member]      
Related Party Transaction [Line Items]      
Variable Interest Entity, Ownership Percentage 50.00%