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Consolidating Statements of Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2016 | Sep. 30, 2015 | Sep. 30, 2016 | Sep. 30, 2015
Sales |  |  |  |
Sales | $ 1,067,214 | $ 991,580 | $ 2,991,682 | $ 2,756,880
Costs and expenses |  |  |  |
Materials, labor, and other operating expenses (excluding depreciation) | 922,101 | 854,134 | 2,586,360 | 2,383,756
Depreciation and amortization | 19,459 | 14,249 | 53,249 | 41,117
Selling and distribution expenses | 80,026 | 72,668 | 224,922 | 202,802
General and administrative expenses | 14,367 | 11,345 | 46,031 | 35,371
Other (income) expense, net | (46) | (1,256) | (1,459) | (1,653)
Total costs and expenses | 1,035,907 | 951,140 | 2,909,103 | 2,661,393
Income (loss) from operations | 31,307 | 40,440 | 82,579 | 95,487
Foreign currency exchange gain (loss) | (40) | (148) | 186 | (214)
Interest expense | (7,135) | (5,729) | (19,364) | (16,801)
Interest income | 60 | 73 | 236 | 221
Change in fair value of interest rate swaps | 836 | 0 | (765) | 0
Loss on extinguishment of debt | (9,525) | 0 | (9,525) | 0
Total nonoperating income (expense) | (15,804) | (5,804) | (29,232) | (16,794)
Income (loss) before income taxes and equity in net income of affiliates | 15,503 | 34,636 | 53,347 | 78,693
Income tax (provision) benefit | (5,522) | (12,629) | (19,188) | (28,839)
Income (loss) before equity in net income of affiliates | 9,981 | 22,007 | 34,159 | 49,854
Equity in net income of affiliates | 0 | 0 | 0 | 0
Net income | 9,981 | 22,007 | 34,159 | 49,854
Defined benefit pension plans |  |  |  |
Actuarial gain | 0 | 0 | 0 | 11,923
Amortization of actuarial loss | 359 | 608 | 947 | 2,401
Effect of settlements | 0 | 0 | 183 | 309
Other comprehensive income, net of tax | 359 | 608 | 1,130 | 14,633
Comprehensive income | 10,340 | 22,615 | 35,289 | 64,487
Boise Cascade Company (Parent) [Member] |  |  |  |
Sales |  |  |  |
Sales | 74 | 0 | 363 | 0
Costs and expenses |  |  |  |
Materials, labor, and other operating expenses (excluding depreciation) | 291 | (37) | 791 | 1,218
Depreciation and amortization | 321 | 79 | 1,119 | 201
Selling and distribution expenses | 194 | 20 | 531 | 889
General and administrative expenses | 5,918 | 4,159 | 17,920 | 14,595
Other (income) expense, net | 8 | (136) | 21 | (383)
Total costs and expenses | 6,732 | 4,085 | 20,382 | 16,520
Income (loss) from operations | (6,658) | (4,085) | (20,019) | (16,520)
Foreign currency exchange gain (loss) | (29) | (169) | 38 | (424)
Interest expense | (7,099) | (5,690) | (19,254) | (16,749)
Interest income | 19 | 36 | 138 | 75
Change in fair value of interest rate swaps | 836 |  | (765) |
Loss on extinguishment of debt | (9,525) |  | (9,525) |
Total nonoperating income (expense) | (15,798) | (5,823) | (29,368) | (17,098)
Income (loss) before income taxes and equity in net income of affiliates | (22,456) | (9,908) | (49,387) | (33,618)
Income tax (provision) benefit | (5,551) | (12,650) | (19,274) | (28,917)
Income (loss) before equity in net income of affiliates | (28,007) | (22,558) | (68,661) | (62,535)
Equity in net income of affiliates | 37,988 | 44,565 | 102,820 | 112,389
Net income | 9,981 | 22,007 | 34,159 | 49,854
Defined benefit pension plans |  |  |  |
Actuarial gain |  |  |  | 11,923
Amortization of actuarial loss | 359 | 608 | 947 | 2,401
Effect of settlements |  |  | 183 | 309
Other comprehensive income, net of tax | 359 | 608 | 1,130 | 14,633
Comprehensive income | 10,340 | 22,615 | 35,289 | 64,487
Guarantor Subsidiaries [Member] |  |  |  |
Sales |  |  |  |
Sales | 1,062,962 | 988,725 | 2,979,173 | 2,748,180
Costs and expenses |  |  |  |
Materials, labor, and other operating expenses (excluding depreciation) | 918,400 | 852,733 | 2,576,522 | 2,377,618
Depreciation and amortization | 18,862 | 13,899 | 51,289 | 40,064
Selling and distribution expenses | 79,536 | 72,197 | 223,289 | 200,453
General and administrative expenses | 8,429 | 6,878 | 27,559 | 20,143
Other (income) expense, net | (231) | (1,068) | (1,823) | (915)
Total costs and expenses | 1,024,996 | 944,639 | 2,876,836 | 2,637,363
Income (loss) from operations | 37,966 | 44,086 | 102,337 | 110,817
Foreign currency exchange gain (loss) | (15) | 126 | 84 | 303
Interest expense | (36) | (39) | (110) | (52)
Interest income | 41 | 37 | 98 | 146
Change in fair value of interest rate swaps | 0 |  | 0 |
Loss on extinguishment of debt | 0 |  | 0 |
Total nonoperating income (expense) | (10) | 124 | 72 | 397
Income (loss) before income taxes and equity in net income of affiliates | 37,956 | 44,210 | 102,409 | 111,214
Income tax (provision) benefit | 29 | 21 | 86 | 78
Income (loss) before equity in net income of affiliates | 37,985 | 44,231 | 102,495 | 111,292
Equity in net income of affiliates | 0 | 0 | 0 | 0
Net income | 37,985 | 44,231 | 102,495 | 111,292
Defined benefit pension plans |  |  |  |
Actuarial gain |  |  |  | 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 | 37,985 | 44,231 | 102,495 | 111,292
Non-guarantor Subsidiaries [Member] |  |  |  |
Sales |  |  |  |
Sales | 9,766 | 8,161 | 28,973 | 23,898
Costs and expenses |  |  |  |
Materials, labor, and other operating expenses (excluding depreciation) | 9,018 | 7,052 | 26,426 | 20,751
Depreciation and amortization | 276 | 271 | 841 | 852
Selling and distribution expenses | 296 | 451 | 1,102 | 1,460
General and administrative expenses | 0 | 0 | 0 | 0
Other (income) expense, net | 177 | (52) | 343 | (355)
Total costs and expenses | 9,767 | 7,722 | 28,712 | 22,708
Income (loss) from operations | (1) | 439 | 261 | 1,190
Foreign currency exchange gain (loss) | 4 | (105) | 64 | (93)
Interest expense | 0 | 0 | 0 | 0
Interest income | 0 | 0 | 0 | 0
Change in fair value of interest rate swaps | 0 |  | 0 |
Loss on extinguishment of debt | 0 |  | 0 |
Total nonoperating income (expense) | 4 | (105) | 64 | (93)
Income (loss) before income taxes and equity in net income of affiliates | 3 | 334 | 325 | 1,097
Income tax (provision) benefit | 0 | 0 | 0 | 0
Income (loss) before equity in net income of affiliates | 3 | 334 | 325 | 1,097
Equity in net income of affiliates | 0 | 0 | 0 | 0
Net income | 3 | 334 | 325 | 1,097
Defined benefit pension plans |  |  |  |
Actuarial gain |  |  |  | 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 | 3 | 334 | 325 | 1,097
Reportable Legal Entities [Member] | Boise Cascade Company (Parent) [Member] |  |  |  |
Sales |  |  |  |
Sales | 74 | 0 | 363 | 0
Reportable Legal Entities [Member] | Guarantor Subsidiaries [Member] |  |  |  |
Sales |  |  |  |
Sales | 1,062,962 | 988,725 | 2,979,173 | 2,748,180
Reportable Legal Entities [Member] | Non-guarantor Subsidiaries [Member] |  |  |  |
Sales |  |  |  |
Sales | 4,178 | 2,855 | 12,146 | 8,700
Eliminations [Member] |  |  |  |
Sales |  |  |  |
Sales | (5,588) | (5,306) | (16,827) | (15,198)
Costs and expenses |  |  |  |
Materials, labor, and other operating expenses (excluding depreciation) | (5,608) | (5,614) | (17,379) | (15,831)
Depreciation and amortization | 0 | 0 | 0 | 0
Selling and distribution expenses | 0 | 0 | 0 | 0
General and administrative expenses | 20 | 308 | 552 | 633
Other (income) expense, net | 0 | 0 | 0 | 0
Total costs and expenses | (5,588) | (5,306) | (16,827) | (15,198)
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 |
Loss on extinguishment of debt | 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 | (37,988) | (44,565) | (102,820) | (112,389)
Net income | (37,988) | (44,565) | (102,820) | (112,389)
Defined benefit pension plans |  |  |  |
Actuarial gain |  |  |  | 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 | (37,988) | (44,565) | (102,820) | (112,389)
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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