Transactions With Related Parties - Additional Information (Details) - USD ($) $ in Millions |
3 Months Ended | 6 Months Ended | |||
|---|---|---|---|---|---|
Jun. 30, 2017 |
Jun. 30, 2016 |
Jun. 30, 2017 |
Jun. 30, 2016 |
Dec. 31, 2016 |
|
| Related Party Transaction [Line Items] | |||||
| Carrying amount of LTP's assets | $ 4.5 | $ 4.5 | $ 5.0 | ||
| Carrying amount of LTP's liabilities | 4.5 | $ 4.5 | $ 5.0 | ||
| 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 | 21.7 | $ 17.1 | |||
| Fiber costs from related parties | $ 45.2 | $ 39.3 | |||
| Boise Cascade Co-Owner of LTP | Wood Products, Including Chips and Logs | |||||
| Related Party Transaction [Line Items] | |||||
| Fiber costs from related parties | $ 4.6 | $ 4.5 | $ 9.6 | $ 9.2 | |
| PCA | |||||
| Related Party Transaction [Line Items] | |||||
| Variable interest entity, ownership percentage | 50.00% | ||||