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Transactions With Related Parties - Additional Information (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2019 | Sep. 30, 2018 | Sep. 30, 2019 | Sep. 30, 2018 | Dec. 31, 2018
Related Party Transaction [Line Items] |  |  |  |  |
Carrying amount of LTP's assets | $ 5.1 |  | $ 5.1 |  | $ 2.7
Carrying amount of LTP's liabilities | 5.1 |  | $ 5.1 |  | $ 2.7
Boise Cascade Co-Owner of LTP |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |
Variable interest entity, ownership percentage |  |  | 50.00% |  |
Boise Cascade Co-Owner of LTP | Fiber |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |
Revenue from related parties | 21.4 | $ 22.4 | $ 62.7 | $ 65.5 |
Fiber costs from related parties | 21.4 | 22.4 | 62.7 | 65.5 |
Boise Cascade Co-Owner of LTP | Wood Products, Including Chips and Logs |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |
Fiber costs from related parties | $ 4.4 | $ 4.1 | $ 13.2 | $ 12.8 |
Packaging Corporation of America |  |  |  |  |
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://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 946 -SubTopic 220 -Section S99 -Paragraph 1 -Subparagraph (SX 210.6-07.1(c)) -URI http://asc.fasb.org/extlink&oid=116637345&loc=SL114874292-224272 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.1(e)) -URI http://asc.fasb.org/extlink&oid=116634182&loc=SL114868664-224227 + Details
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- Details
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