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Level 4 Consolidating Statements of Comprehensive Income (Loss) (Details) (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2013 | Sep. 30, 2013 | Jun. 30, 2013 | Mar. 31, 2013 | Dec. 31, 2012 | Sep. 30, 2012 | Jun. 30, 2012 | Mar. 31, 2012 | Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011
Sales |  |  |  |  |  |  |  |  |  |  |  |  |
Sales | $ 798,300 | [1] | $ 878,000 | $ 852,300 | $ 744,900 |  | $ 694,600 | $ 764,600 | $ 732,900 | $ 587,000 | $ 3,273,496 | $ 2,779,062 | $ 2,248,088
Costs and expenses |  |  |  |  |  |  |  |  |  |  |  |  |
Materials, labor, and other operating expenses (excluding depreciation) |  |  |  |  |  |  |  |  |  |  | 2,846,614 | 2,403,445 | 1,992,677
Depreciation and amortization |  |  |  |  |  |  |  |  |  |  | 38,038 | 33,407 | 37,022
Selling and distribution expenses |  |  |  |  |  |  |  |  |  |  | 245,283 | 235,055 | 204,998
General and administrative expenses |  |  |  |  |  |  |  |  |  |  | 45,489 | 43,122 | 37,242
Other (income) expense, net |  |  |  |  |  |  |  |  |  |  | (685) | 902 | 3,195
Total costs and expenses |  |  |  |  |  |  |  |  |  |  | 3,174,739 | 2,715,931 | 2,275,134
Income (loss) from operations | 21,400 | [1] | 30,500 | 22,200 | 24,600 |  | 8,600 | 28,100 | 20,100 | 6,200 | 98,757 | 63,131 | (27,046)
Foreign currency exchange gain (loss) |  |  |  |  |  |  |  |  |  |  | (424) | 37 | (497)
Interest expense |  |  |  |  |  |  |  |  |  |  | (20,426) | (21,757) | (18,987)
Interest income |  |  |  |  |  |  |  |  |  |  | 241 | 392 | 407
Total nonoperating income (expense) |  |  |  |  |  |  |  |  |  |  | (20,609) | (21,328) | (19,077)
Income (loss) before income taxes and equity in net income of affiliates |  |  |  |  |  |  |  |  |  |  | 78,148 | 41,803 | (46,123)
Income tax (provision) benefit |  |  |  |  |  |  |  |  |  |  | 38,788 | (307) | (240)
Income (loss) before equity in net income of affiliates |  |  |  |  |  |  |  |  |  |  | 116,936 | 41,496 | (46,363)
Equity in net income (loss) of affiliates |  |  |  |  |  |  |  |  |  |  | 0 | 0 | 0
Net income (loss) | 9,800 | [1] | 15,900 | 10,400 | 80,800 | [2] | 1,300 | 23,500 | 15,000 | 1,700 | 116,936 | 41,496 | (46,363)
Defined benefit pension plans |  |  |  |  |  |  |  |  |  |  |  |  |
Net actuarial gain (loss) |  |  |  |  |  |  |  |  |  |  | 60,100 | (8,432) | (83,528)
Amortization of actuarial loss |  |  |  |  |  |  |  |  |  |  | 5,692 | 7,632 | 2,703
Amortization of prior service costs |  |  |  |  |  |  |  |  |  |  | 188 | 416 | 175
Other comprehensive income (loss), net of tax |  |  |  |  |  |  |  |  |  |  | 65,980 | (384) | (80,650)
Comprehensive income (loss) |  |  |  |  |  |  |  |  |  |  | 182,916 | 41,112 | (127,013)
Boise Cascade Company (Parent) [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Sales |  |  |  |  |  |  |  |  |  |  |  |  |
Sales |  |  |  |  |  |  |  |  |  |  | 0 | 0 | 0
Costs and expenses |  |  |  |  |  |  |  |  |  |  |  |  |
Materials, labor, and other operating expenses (excluding depreciation) |  |  |  |  |  |  |  |  |  |  | 0 | 0 | 0
Depreciation and amortization |  |  |  |  |  |  |  |  |  |  | 140 | 120 | 240
Selling and distribution expenses |  |  |  |  |  |  |  |  |  |  | 0 | 0 | 0
General and administrative expenses |  |  |  |  |  |  |  |  |  |  | 18,786 | 16,425 | 13,613
Other (income) expense, net |  |  |  |  |  |  |  |  |  |  | (150) | 126 | 111
Total costs and expenses |  |  |  |  |  |  |  |  |  |  | 18,776 | 16,671 | 13,964
Income (loss) from operations |  |  |  |  |  |  |  |  |  |  | (18,776) | (16,671) | (13,964)
Foreign currency exchange gain (loss) |  |  |  |  |  |  |  |  |  |  | (292) | 149 | (510)
Interest expense |  |  |  |  |  |  |  |  |  |  | (20,426) | (21,757) | (18,987)
Interest income |  |  |  |  |  |  |  |  |  |  | 83 | 196 | 185
Total nonoperating income (expense) |  |  |  |  |  |  |  |  |  |  | (20,635) | (21,412) | (19,312)
Income (loss) before income taxes and equity in net income of affiliates |  |  |  |  |  |  |  |  |  |  | (39,411) | (38,083) | (33,276)
Income tax (provision) benefit |  |  |  |  |  |  |  |  |  |  | 38,656 | (300) | (216)
Income (loss) before equity in net income of affiliates |  |  |  |  |  |  |  |  |  |  | (755) | (38,383) | (33,492)
Equity in net income (loss) of affiliates |  |  |  |  |  |  |  |  |  |  | 117,691 | 79,879 | (12,871)
Net income (loss) |  |  |  |  |  |  |  |  |  |  | 116,936 | 41,496 | (46,363)
Defined benefit pension plans |  |  |  |  |  |  |  |  |  |  |  |  |
Net actuarial gain (loss) |  |  |  |  |  |  |  |  |  |  | 60,100 | (8,432) | (83,528)
Amortization of actuarial loss |  |  |  |  |  |  |  |  |  |  | 5,692 | 7,632 | 2,703
Amortization of prior service costs |  |  |  |  |  |  |  |  |  |  | 188 | 416 | 175
Other comprehensive income (loss), net of tax |  |  |  |  |  |  |  |  |  |  | 65,980 | (384) | (80,650)
Comprehensive income (loss) |  |  |  |  |  |  |  |  |  |  | 182,916 | 41,112 | (127,013)
Guarantor Subsidiaries [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Sales |  |  |  |  |  |  |  |  |  |  |  |  |
Sales |  |  |  |  |  |  |  |  |  |  | 3,258,873 | 2,765,980 | 2,234,746
Costs and expenses |  |  |  |  |  |  |  |  |  |  |  |  |
Materials, labor, and other operating expenses (excluding depreciation) |  |  |  |  |  |  |  |  |  |  | 2,831,103 | 2,390,124 | 1,980,051
Depreciation and amortization |  |  |  |  |  |  |  |  |  |  | 36,682 | 31,691 | 35,010
Selling and distribution expenses |  |  |  |  |  |  |  |  |  |  | 242,743 | 231,593 | 202,254
General and administrative expenses |  |  |  |  |  |  |  |  |  |  | 26,135 | 25,529 | 22,976
Other (income) expense, net |  |  |  |  |  |  |  |  |  |  | 324 | 2,818 | 4,114
Total costs and expenses |  |  |  |  |  |  |  |  |  |  | 3,136,987 | 2,681,755 | 2,244,405
Income (loss) from operations |  |  |  |  |  |  |  |  |  |  | 121,886 | 84,225 | (9,659)
Foreign currency exchange gain (loss) |  |  |  |  |  |  |  |  |  |  | (115) | (124) | 20
Interest expense |  |  |  |  |  |  |  |  |  |  | 0 | 0 | 0
Interest income |  |  |  |  |  |  |  |  |  |  | 158 | 196 | 222
Total nonoperating income (expense) |  |  |  |  |  |  |  |  |  |  | 43 | 72 | 242
Income (loss) before income taxes and equity in net income of affiliates |  |  |  |  |  |  |  |  |  |  | 121,929 | 84,297 | (9,417)
Income tax (provision) benefit |  |  |  |  |  |  |  |  |  |  | 154 | (7) | (24)
Income (loss) before equity in net income of affiliates |  |  |  |  |  |  |  |  |  |  | 122,083 | 84,290 | (9,441)
Equity in net income (loss) of affiliates |  |  |  |  |  |  |  |  |  |  | 0 | 0 | 0
Net income (loss) |  |  |  |  |  |  |  |  |  |  | 122,083 | 84,290 | (9,441)
Defined benefit pension plans |  |  |  |  |  |  |  |  |  |  |  |  |
Net actuarial gain (loss) |  |  |  |  |  |  |  |  |  |  | 0 | 0 | 0
Amortization of actuarial loss |  |  |  |  |  |  |  |  |  |  | 0 | 0 | 0
Amortization of prior service costs |  |  |  |  |  |  |  |  |  |  | 0 | 0 | 0
Other comprehensive income (loss), net of tax |  |  |  |  |  |  |  |  |  |  | 0 | 0 | 0
Comprehensive income (loss) |  |  |  |  |  |  |  |  |  |  | 122,083 | 84,290 | (9,441)
Non-guarantor Subsidiaries [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Sales |  |  |  |  |  |  |  |  |  |  |  |  |
Sales |  |  |  |  |  |  |  |  |  |  | 26,882 | 26,478 | 24,499
Costs and expenses |  |  |  |  |  |  |  |  |  |  |  |  |
Materials, labor, and other operating expenses (excluding depreciation) |  |  |  |  |  |  |  |  |  |  | 28,338 | 27,885 | 24,436
Depreciation and amortization |  |  |  |  |  |  |  |  |  |  | 1,216 | 1,596 | 1,772
Selling and distribution expenses |  |  |  |  |  |  |  |  |  |  | 2,540 | 3,462 | 2,744
General and administrative expenses |  |  |  |  |  |  |  |  |  |  | 0 | 0 | 0
Other (income) expense, net |  |  |  |  |  |  |  |  |  |  | (859) | (2,042) | (1,030)
Total costs and expenses |  |  |  |  |  |  |  |  |  |  | 31,235 | 30,901 | 27,922
Income (loss) from operations |  |  |  |  |  |  |  |  |  |  | (4,353) | (4,423) | (3,423)
Foreign currency exchange gain (loss) |  |  |  |  |  |  |  |  |  |  | (17) | 12 | (7)
Interest expense |  |  |  |  |  |  |  |  |  |  | 0 | 0 | 0
Interest income |  |  |  |  |  |  |  |  |  |  | 0 | 0 | 0
Total nonoperating income (expense) |  |  |  |  |  |  |  |  |  |  | (17) | 12 | (7)
Income (loss) before income taxes and equity in net income of affiliates |  |  |  |  |  |  |  |  |  |  | (4,370) | (4,411) | (3,430)
Income tax (provision) benefit |  |  |  |  |  |  |  |  |  |  | (22) | 0 | 0
Income (loss) before equity in net income of affiliates |  |  |  |  |  |  |  |  |  |  | (4,392) | (4,411) | (3,430)
Equity in net income (loss) of affiliates |  |  |  |  |  |  |  |  |  |  | 0 | 0 | 0
Net income (loss) |  |  |  |  |  |  |  |  |  |  | (4,392) | (4,411) | (3,430)
Defined benefit pension plans |  |  |  |  |  |  |  |  |  |  |  |  |
Net actuarial gain (loss) |  |  |  |  |  |  |  |  |  |  | 0 | 0 | 0
Amortization of actuarial loss |  |  |  |  |  |  |  |  |  |  | 0 | 0 | 0
Amortization of prior service costs |  |  |  |  |  |  |  |  |  |  | 0 | 0 | 0
Other comprehensive income (loss), net of tax |  |  |  |  |  |  |  |  |  |  | 0 | 0 | 0
Comprehensive income (loss) |  |  |  |  |  |  |  |  |  |  | (4,392) | (4,411) | (3,430)
Eliminations [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Sales |  |  |  |  |  |  |  |  |  |  |  |  |
Sales |  |  |  |  |  |  |  |  |  |  | (12,259) | (13,396) | (11,157)
Costs and expenses |  |  |  |  |  |  |  |  |  |  |  |  |
Materials, labor, and other operating expenses (excluding depreciation) |  |  |  |  |  |  |  |  |  |  | (12,827) | (14,564) | (11,810)
Depreciation and amortization |  |  |  |  |  |  |  |  |  |  | 0 | 0 | 0
Selling and distribution expenses |  |  |  |  |  |  |  |  |  |  | 0 | 0 | 0
General and administrative expenses |  |  |  |  |  |  |  |  |  |  | 568 | 1,168 | 653
Other (income) expense, net |  |  |  |  |  |  |  |  |  |  | 0 | 0 | 0
Total costs and expenses |  |  |  |  |  |  |  |  |  |  | (12,259) | (13,396) | (11,157)
Income (loss) from operations |  |  |  |  |  |  |  |  |  |  | 0 | 0 | 0
Foreign currency exchange gain (loss) |  |  |  |  |  |  |  |  |  |  | 0 | 0 | 0
Interest expense |  |  |  |  |  |  |  |  |  |  | 0 | 0 | 0
Interest income |  |  |  |  |  |  |  |  |  |  | 0 | 0 | 0
Total nonoperating income (expense) |  |  |  |  |  |  |  |  |  |  | 0 | 0 | 0
Income (loss) before income taxes and equity in net income of affiliates |  |  |  |  |  |  |  |  |  |  | 0 | 0 | 0
Income tax (provision) benefit |  |  |  |  |  |  |  |  |  |  | 0 | 0 | 0
Income (loss) before equity in net income of affiliates |  |  |  |  |  |  |  |  |  |  | 0 | 0 | 0
Equity in net income (loss) of affiliates |  |  |  |  |  |  |  |  |  |  | (117,691) | (79,879) | 12,871
Net income (loss) |  |  |  |  |  |  |  |  |  |  | (117,691) | (79,879) | 12,871
Defined benefit pension plans |  |  |  |  |  |  |  |  |  |  |  |  |
Net actuarial gain (loss) |  |  |  |  |  |  |  |  |  |  | 0 | 0 | 0
Amortization of actuarial loss |  |  |  |  |  |  |  |  |  |  | 0 | 0 | 0
Amortization of prior service costs |  |  |  |  |  |  |  |  |  |  | 0 | 0 | 0
Other comprehensive income (loss), net of tax |  |  |  |  |  |  |  |  |  |  | 0 | 0 | 0
Comprehensive income (loss) |  |  |  |  |  |  |  |  |  |  | (117,691) | (79,879) | 12,871
Operating Segments [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Sales |  |  |  |  |  |  |  |  |  |  |  |  |
Sales |  |  |  |  |  |  |  |  |  |  | 3,273,496 | 2,779,062 | 2,248,088
Costs and expenses |  |  |  |  |  |  |  |  |  |  |  |  |
Income (loss) before income taxes and equity in net income of affiliates |  |  |  |  |  |  |  |  |  |  | 98,300 | 63,200 | (27,500)
Operating Segments [Member] | Boise Cascade Company (Parent) [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Sales |  |  |  |  |  |  |  |  |  |  |  |  |
Sales |  |  |  |  |  |  |  |  |  |  | 0 | 0 | 0
Operating Segments [Member] | Guarantor Subsidiaries [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Sales |  |  |  |  |  |  |  |  |  |  |  |  |
Sales |  |  |  |  |  |  |  |  |  |  | 3,258,873 | 2,765,980 | 2,234,746
Operating Segments [Member] | Non-guarantor Subsidiaries [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Sales |  |  |  |  |  |  |  |  |  |  |  |  |
Sales |  |  |  |  |  |  |  |  |  |  | 14,623 | 13,082 | 13,342
Operating Segments [Member] | Eliminations [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Sales |  |  |  |  |  |  |  |  |  |  |  |  |
Sales |  |  |  |  |  |  |  |  |  |  | 0 | 0 | 0
Intersegment Eliminations [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Sales |  |  |  |  |  |  |  |  |  |  |  |  |
Sales |  |  |  |  |  |  |  |  |  |  | 0 | 0 | 0
Intersegment Eliminations [Member] | Boise Cascade Company (Parent) [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Sales |  |  |  |  |  |  |  |  |  |  |  |  |
Sales |  |  |  |  |  |  |  |  |  |  | 0 | 0 | 0
Intersegment Eliminations [Member] | Guarantor Subsidiaries [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Sales |  |  |  |  |  |  |  |  |  |  |  |  |
Sales |  |  |  |  |  |  |  |  |  |  | 0 | 0 | 0
Intersegment Eliminations [Member] | Non-guarantor Subsidiaries [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Sales |  |  |  |  |  |  |  |  |  |  |  |  |
Sales |  |  |  |  |  |  |  |  |  |  | 12,259 | 13,396 | 11,157
Intersegment Eliminations [Member] | Eliminations [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Sales |  |  |  |  |  |  |  |  |  |  |  |  |
Sales |  |  |  |  |  |  |  |  |  |  | $ (12,259) | $ (13,396) | $ (11,157)
[1] | (b)The three months ended December 31, 2013, include the results of the recently acquired plywood plants, Chester Wood Products LLC and Moncure Plywood LLC.
[2] | (a)Net income for the three months ended March 31, 2013, includes a $68.7 million income tax benefit associated with recording net deferred tax assets upon our conversion to a corporation.

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- Definition This element represents the income or loss from continuing operations attributable to the economic entity which may also be defined as revenue less expenses from ongoing operations, after income or loss from equity method investments, but before income taxes, extraordinary items, and noncontrolling interest. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 10 -Article 5 + Details
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- Definition Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(h)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 08 -Paragraph h -Article 4 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Income Tax Expense (or Benefit) -URI http://asc.fasb.org/extlink&oid=6515339 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 9 -Subparagraph (a),(b) -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32639-109319 + Details
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- Definition Amount of the cost of borrowed funds accounted for as interest expense. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6450988&loc=d3e26243-108391 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 225 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04.9) -URI http://asc.fasb.org/extlink&oid=6879574&loc=d3e536633-122882 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Paragraph 9 -Article 9 + Details
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- Definition Amount before accretion (amortization) of purchase discount (premium) of interest income on nonoperating securities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 7 -Article 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.7(b)) -URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688 + Details
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- Definition The aggregate amount of income or expense from ancillary business-related activities (that is to say, excluding major activities considered part of the normal operations of the business). + 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 210.5-03.7) -URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 7 -Article 5 + Details
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