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Stock-Based Compensation (Tables) | 12 Months Ended
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Dec. 31, 2017
Disclosure of Compensation Related Costs, Share-based Payments [Abstract] |
Schedule of Nonvested Share Activity [Table Text Block] | The following summarizes the activity of our PSUs and RSUs awarded under our incentive plans for the year ended December 31, 2017:
|  | PSUs |  | RSUs
|  | Number of shares |  | Weighted Average Grant-Date Fair Value |  | Number of shares |  | Weighted Average Grant-Date Fair Value
Outstanding, December 31, 2016 |  | 448,500 |  |  | $ | 18.16 |  |  | 387,287 |  |  | $ | 19.73 |
Granted |  | 178,021 |  |  | 27.05 |  |  | 214,035 |  |  | 27.10 |
Performance condition adjustment (a) |  | 5,175 |  |  | 16.56 |  |  | — |  |  | — |
Vested |  | (118,138 | ) |  | 20.44 |  |  | (182,489 | ) |  | 20.79 |
Forfeited (b) |  | (26,398 | ) |  | 19.63 |  |  | (15,581 | ) |  | 22.41 |
Outstanding, December 31, 2017 |  | 487,160 |  |  | $ | 20.76 |  |  | $ | 403,252 |  |  | $ | 23.06 |
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(a) | Amount represents additional PSU's earned during the year ended December 31, 2017, based on the performance condition adjustment, as other employees earned 104% of the target based Boise Cascade's 2016 EBITDA.
(b) | Total PSUs forfeited during the year ended December 31, 2017, includes 8,457 shares related to the performance condition adjustment, as officers earned 97% of the target based on Boise Cascade’s 2016 ROIC.
Stock-based compensation expense recognized [Table Text Block] |
| Year Ended December 31
| 2017 |  | 2016 |  | 2015
| (thousands)
PSUs | $ | 4,923 |  |  | $ | 4,114 |  |  | $ | 2,295 |
RSUs | 4,807 |  |  | 3,982 |  |  | 2,995 |
Stock options | — |  |  | 81 |  |  | 535 |
Total | $ | 9,730 |  |  | $ | 8,177 |  |  | $ | 5,825 |

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- Definition Tabular disclosure of the amount of total share-based compensation cost, including the amounts attributable to each share-based compensation plan and any related tax benefits. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 + Details
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- Definition Tabular disclosure of the changes in outstanding nonvested shares. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 + Details
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