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Transactions With Related Party (Details) - Unconsolidated variable interest entity [Member] - Louisiana Timber Procurement Company, L.L.C. (LTP) [Member] - USD ($) $ in Millions | 3 Months Ended
--- | ---
Mar. 31, 2017 | Mar. 31, 2016
Related Party Transaction [Line Items] |  |
Variable interest entity, ownership percentage | 50.00% |
Revenue from related parties | $ 5.0 | $ 4.7
Cost of Sales [Member] |  |
Related Party Transaction [Line Items] |  |
Related parties amount in cost of sales | $ 21.9 | $ 21.5
Packaging Corporation of America (PCA) [Member] |  |
Related Party Transaction [Line Items] |  |
Variable interest entity, ownership percentage | 50.00% |

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- Definition Amount of revenue, fees and commissions earned from transactions between (a) a parent company and its subsidiaries; (b) subsidiaries of a common parent; (c) an entity and trusts for the benefit of employees, for example, but not limited to, pension and profit-sharing trusts that are managed by or under the trusteeship of the entity's management; (d) an entity and its principal, owners, management, or members of their immediate families; and (e) affiliates. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.1(e)) -URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Related Parties -URI http://asc.fasb.org/extlink&oid=16382449 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 946 -SubTopic 225 -Section S99 -Paragraph 1 -Subparagraph (SX 210.6-07.1(c)) -URI http://asc.fasb.org/extlink&oid=6488393&loc=d3e606610-122999 + Details
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