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Consolidating Statements of Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2016 | Jun. 30, 2015 | Jun. 30, 2016 | Jun. 30, 2015
Sales |  |  |  |
Sales | $ 1,043,773 | $ 955,397 | $ 1,924,468 | $ 1,765,300
Costs and expenses |  |  |  |
Materials, labor, and other operating expenses (excluding depreciation) | 894,715 | 824,583 | 1,664,259 | 1,529,622
Depreciation and amortization | 18,552 | 13,281 | 33,790 | 26,868
Selling and distribution expenses | 76,855 | 68,254 | 144,896 | 130,134
General and administrative expenses | 15,612 | 12,018 | 31,664 | 24,026
Other (income) expense, net | 172 | (98) | (1,413) | (397)
Total costs and expenses | 1,005,906 | 918,038 | 1,873,196 | 1,710,253
Income (loss) from operations | 37,867 | 37,359 | 51,272 | 55,047
Foreign currency exchange gain (loss) | 28 | 41 | 226 | (66)
Interest expense | (6,427) | (5,591) | (12,229) | (11,072)
Interest income | 27 | 58 | 176 | 148
Change in fair value of interest rate swaps | (1,532) | 0 | (1,601) | 0
Total nonoperating income (expense) | (7,904) | (5,492) | (13,428) | (10,990)
Income (loss) before income taxes and equity in net income of affiliates | 29,963 | 31,867 | 37,844 | 44,057
Income tax (provision) benefit | (10,735) | (11,637) | (13,666) | (16,210)
Income (loss) before equity in net income of affiliates | 19,228 | 20,230 | 24,178 | 27,847
Equity in net income of affiliates | 0 | 0 | 0 | 0
Net income | 19,228 | 20,230 | 24,178 | 27,847
Defined benefit pension plans |  |  |  |
Actuarial gain | 0 | 11,923 | 0 | 11,923
Amortization of actuarial loss | 294 | 808 | 588 | 1,793
Effect of settlements | 0 | 0 | 183 | 309
Other comprehensive income, net of tax | 294 | 12,731 | 771 | 14,025
Comprehensive income | 19,522 | 32,961 | 24,949 | 41,872
Boise Cascade Company (Parent) [Member] |  |  |  |
Sales |  |  |  |
Sales | 103 | 0 | 289 | 0
Costs and expenses |  |  |  |
Materials, labor, and other operating expenses (excluding depreciation) | 258 | 405 | 500 | 1,255
Depreciation and amortization | 428 | 64 | 798 | 122
Selling and distribution expenses | 174 | 314 | 337 | 869
General and administrative expenses | 6,767 | 5,143 | 12,002 | 10,436
Other (income) expense, net | 13 | (22) | 13 | (247)
Total costs and expenses | 7,640 | 5,904 | 13,650 | 12,435
Income (loss) from operations | (7,537) | (5,904) | (13,361) | (12,435)
Foreign currency exchange gain (loss) | 40 | (83) | 67 | (255)
Interest expense | (6,391) | (5,578) | (12,155) | (11,059)
Interest income | 7 | 21 | 119 | 39
Change in fair value of interest rate swaps | (1,532) |  | (1,601) |
Total nonoperating income (expense) | (7,876) | (5,640) | (13,570) | (11,275)
Income (loss) before income taxes and equity in net income of affiliates | (15,413) | (11,544) | (26,931) | (23,710)
Income tax (provision) benefit | (10,767) | (11,663) | (13,723) | (16,267)
Income (loss) before equity in net income of affiliates | (26,180) | (23,207) | (40,654) | (39,977)
Equity in net income of affiliates | 45,408 | 43,437 | 64,832 | 67,824
Net income | 19,228 | 20,230 | 24,178 | 27,847
Defined benefit pension plans |  |  |  |
Actuarial gain |  | 11,923 |  | 11,923
Amortization of actuarial loss | 294 | 808 | 588 | 1,793
Effect of settlements |  |  | 183 | 309
Other comprehensive income, net of tax | 294 | 12,731 | 771 | 14,025
Comprehensive income | 19,522 | 32,961 | 24,949 | 41,872
Guarantor Subsidiaries [Member] |  |  |  |
Sales |  |  |  |
Sales | 1,039,139 | 951,728 | 1,916,211 | 1,759,455
Costs and expenses |  |  |  |
Materials, labor, and other operating expenses (excluding depreciation) | 891,237 | 822,032 | 1,658,122 | 1,524,885
Depreciation and amortization | 17,842 | 12,926 | 32,427 | 26,165
Selling and distribution expenses | 76,306 | 67,493 | 143,753 | 128,256
General and administrative expenses | 8,529 | 6,824 | 19,130 | 13,265
Other (income) expense, net | 32 | (4) | (1,592) | 153
Total costs and expenses | 993,946 | 909,271 | 1,851,840 | 1,692,724
Income (loss) from operations | 45,193 | 42,457 | 64,371 | 66,731
Foreign currency exchange gain (loss) | 22 | 44 | 99 | 177
Interest expense | (36) | (13) | (74) | (13)
Interest income | 20 | 37 | 57 | 109
Change in fair value of interest rate swaps | 0 |  | 0 |
Total nonoperating income (expense) | 6 | 68 | 82 | 273
Income (loss) before income taxes and equity in net income of affiliates | 45,199 | 42,525 | 64,453 | 67,004
Income tax (provision) benefit | 32 | 26 | 57 | 57
Income (loss) before equity in net income of affiliates | 45,231 | 42,551 | 64,510 | 67,061
Equity in net income of affiliates | 0 | 0 | 0 | 0
Net income | 45,231 | 42,551 | 64,510 | 67,061
Defined benefit pension plans |  |  |  |
Actuarial gain |  | 0 |  | 0
Amortization of actuarial loss | 0 | 0 | 0 | 0
Effect of settlements |  |  | 0 | 0
Other comprehensive income, net of tax | 0 | 0 | 0 | 0
Comprehensive income | 45,231 | 42,551 | 64,510 | 67,061
Non-guarantor Subsidiaries [Member] |  |  |  |
Sales |  |  |  |
Sales | 10,258 | 9,522 | 19,207 | 15,737
Costs and expenses |  |  |  |
Materials, labor, and other operating expenses (excluding depreciation) | 9,263 | 8,050 | 17,408 | 13,699
Depreciation and amortization | 282 | 291 | 565 | 581
Selling and distribution expenses | 375 | 447 | 806 | 1,009
General and administrative expenses | 0 | 0 | 0 | 0
Other (income) expense, net | 127 | (72) | 166 | (303)
Total costs and expenses | 10,047 | 8,716 | 18,945 | 14,986
Income (loss) from operations | 211 | 806 | 262 | 751
Foreign currency exchange gain (loss) | (34) | 80 | 60 | 12
Interest expense | 0 | 0 | 0 | 0
Interest income | 0 | 0 | 0 | 0
Change in fair value of interest rate swaps | 0 |  | 0 |
Total nonoperating income (expense) | (34) | 80 | 60 | 12
Income (loss) before income taxes and equity in net income of affiliates | 177 | 886 | 322 | 763
Income tax (provision) benefit | 0 | 0 | 0 | 0
Income (loss) before equity in net income of affiliates | 177 | 886 | 322 | 763
Equity in net income of affiliates | 0 | 0 | 0 | 0
Net income | 177 | 886 | 322 | 763
Defined benefit pension plans |  |  |  |
Actuarial gain |  | 0 |  | 0
Amortization of actuarial loss | 0 | 0 | 0 | 0
Effect of settlements |  |  | 0 | 0
Other comprehensive income, net of tax | 0 | 0 | 0 | 0
Comprehensive income | 177 | 886 | 322 | 763
Reportable Legal Entities [Member] | Boise Cascade Company (Parent) [Member] |  |  |  |
Sales |  |  |  |
Sales | 103 | 0 | 289 | 0
Reportable Legal Entities [Member] | Guarantor Subsidiaries [Member] |  |  |  |
Sales |  |  |  |
Sales | 1,039,139 | 951,728 | 1,916,211 | 1,759,455
Reportable Legal Entities [Member] | Non-guarantor Subsidiaries [Member] |  |  |  |
Sales |  |  |  |
Sales | 4,531 | 3,669 | 7,968 | 5,845
Eliminations [Member] |  |  |  |
Sales |  |  |  |
Sales | (5,727) | (5,853) | (11,239) | (9,892)
Costs and expenses |  |  |  |
Materials, labor, and other operating expenses (excluding depreciation) | (6,043) | (5,904) | (11,771) | (10,217)
Depreciation and amortization | 0 | 0 | 0 | 0
Selling and distribution expenses | 0 | 0 | 0 | 0
General and administrative expenses | 316 | 51 | 532 | 325
Other (income) expense, net | 0 | 0 | 0 | 0
Total costs and expenses | (5,727) | (5,853) | (11,239) | (9,892)
Income (loss) from operations | 0 | 0 | 0 | 0
Foreign currency exchange gain (loss) | 0 | 0 | 0 | 0
Interest expense | 0 | 0 | 0 | 0
Interest income | 0 | 0 | 0 | 0
Change in fair value of interest rate swaps | 0 |  | 0 |
Total nonoperating income (expense) | 0 | 0 | 0 | 0
Income (loss) before income taxes and equity in net income of affiliates | 0 | 0 | 0 | 0
Income tax (provision) benefit | 0 | 0 | 0 | 0
Income (loss) before equity in net income of affiliates | 0 | 0 | 0 | 0
Equity in net income of affiliates | (45,408) | (43,437) | (64,832) | (67,824)
Net income | (45,408) | (43,437) | (64,832) | (67,824)
Defined benefit pension plans |  |  |  |
Actuarial gain |  | 0 |  | 0
Amortization of actuarial loss | 0 | 0 | 0 | 0
Effect of settlements |  |  | 0 | 0
Other comprehensive income, net of tax | 0 | 0 | 0 | 0
Comprehensive income | (45,408) | (43,437) | (64,832) | (67,824)
Eliminations [Member] | Boise Cascade Company (Parent) [Member] |  |  |  |
Sales |  |  |  |
Sales | 0 | 0 | 0 | 0
Eliminations [Member] | Guarantor Subsidiaries [Member] |  |  |  |
Sales |  |  |  |
Sales | $ 0 | $ 0 | $ 0 | $ 0

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