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v3.24.3

Transactions With Related Parties - Additional Information (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2024 | Sep. 30, 2023 | Sep. 30, 2024 | Sep. 30, 2023 | Dec. 31, 2023
Related Party Transaction [Line Items] |  |  |  |  |
Carrying amount of LTP's assets | $ 8,753.8 |  | $ 8,753.8 |  | $ 8,681.1
Revenue from Contract with Customer, Excluding Assessed Tax, Total | 2,182.4 | $ 1,936.0 | $ 6,237.2 | $ 5,864.5 |
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 Contract with Customer, Excluding Assessed Tax, Total | 22.1 | 20.3 | $ 63.2 | 61.5 |
Boise Cascade Co-Owner of LTP | Wood Products, Including Chips and Logs |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |
Fiber costs from related parties | 2.6 | $ 2.9 | $ 8.4 | $ 8.9 |
Packaging Corporation of America |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |
Variable interest entity, ownership percentage |  |  | 50.00% |  |
Variable Interest Entity |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |
Carrying amount of LTP's assets | $ 4.5 |  | $ 4.5 |  |
Carrying amount of LTP's liabilities |  |  |  |  | $ 3.3

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