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Employee Benefit Plans and Other Postretirement Benefits - Additional Information (Detail) (USD $) Share data in Thousands, unless otherwise specified | 12 Months Ended |  | 12 Months Ended |  |  | 12 Months Ended |  | 12 Months Ended
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Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2013 Pension Plans | Dec. 31, 2012 Pension Plans | Dec. 31, 2013 Postretirement Plans | Dec. 31, 2012 Postretirement Plans | Dec. 31, 2013 Employee Stock Ownership Plan | Dec. 31, 2012 Employee Stock Ownership Plan | Dec. 31, 2013 Minimum | Dec. 31, 2013 Maximum | Dec. 31, 2013 Boise Inc. | Oct. 25, 2013 Boise Inc. Pension Plans | Dec. 31, 2014 Scenario, Forecast Pension Plans | Dec. 31, 2013 Matching Contributions | Dec. 31, 2012 Matching Contributions | Dec. 31, 2011 Matching Contributions | Dec. 31, 2012 Service Related Contributions | Dec. 31, 2011 Service Related Contributions
Defined Contribution And Defined Benefit Plans [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net underfunded status of acquired benefit plans |  |  |  |  |  |  |  |  |  |  |  | $ 67,800,000 |  |  |  |  |  |
Number of employees continuing to accrue pension benefits |  |  |  |  |  |  |  |  |  |  |  | 300 |  |  |  |  |  |
Minimum retirement age for medical benefit plan coverage, years |  |  |  |  | 58 |  |  |  |  |  |  |  |  |  |  |  |  |
Minimum service period for medical benefit plan coverage, years |  |  |  |  | 10 |  |  |  |  |  |  |  |  |  |  |  |  |
Employee age after which minimum service period to be completed for medical benefit plan coverage, years |  |  |  |  | 48 |  |  |  |  |  |  |  |  |  |  |  |  |
Company contributions |  |  | 30,146,000 | 35,984,000 | 1,289,000 | 1,192,000 |  |  |  |  |  |  |  |  |  |  |  |
Expected pension contributions in next fiscal year |  |  |  |  |  |  |  |  |  |  |  |  | 5,000,000 |  |  |  |  |
Company's contribution to defined contribution plans | 5,300,000 |  |  |  |  |  |  |  |  |  |  |  |  | 15,000,000 | 10,800,000 | 10,400,000 | 4,300,000 | 3,900,000
Company's common stock |  |  |  |  |  |  | 2,100 | 2,100 |  |  |  |  |  |  |  |  |  |
Company's contribution to pension plan, percentage |  |  |  |  |  |  |  |  | 3.00% | 5.00% |  |  |  |  |  |  |  |
Deferred compensation liability | 12,000,000 | 3,400,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Increase in other long-term liabilities | $ 8,600,000 |  |  |  |  |  |  |  |  |  | $ 7,900,000 |  |  |  |  |  |  |

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- Definition Represents the percentage of base pay for service-related Company retirement contributions to a defined contribution plan. + References No definition available. + Details
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- Definition The change in carrying amount of the liability during the period to an individual under a deferred compensation arrangement. This amount may be the result of periodic accruals made over the period of active employment, or reflect termination benefits resulting contractual terms or a death benefit. + References No definition available. + Details
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- Definition Employee age after which minimum service period to be completed for retiree medical benefit plan coverage. + References No definition available. + Details
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- Definition Minimum retirement age for retiree medical benefit plan coverage. + References No definition available. + Details
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- Definition Minimum service period for retiree medical benefit plan coverage. + References No definition available. + Details
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- Definition Number of Employees Continuing to Accrue Benefits + References No definition available. + Details
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- Definition The carrying amount of the liability as of the balance sheet date to an individual under a deferred compensation arrangement. This amount may be the result of periodic accruals made over the period of active employment, or reflect termination benefits resulting contractual terms or a death benefit. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 710 -SubTopic 10 -Section 30 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6409875&loc=d3e20015-108363 + Details
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- Definition The increase in the fair value of plan assets from contributions made by the employer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (b)(3) -URI http://asc.fasb.org/extlink&oid=28361610&loc=d3e1928-114920 + Details
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- Definition The funded status is measured as the difference between the fair value of plan assets and the benefit obligation. Will normally be the same as the net Defined Benefit Plan, Amounts Recognized in Balance Sheet, Total. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=28361610&loc=d3e1928-114920 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=21915240&loc=d3e1703-114919 + Details
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- Definition Amount of employer's best estimate of contributions expected to be paid to the plan during the next fiscal year beginning after the date of the latest statement of financial position. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (g) -URI http://asc.fasb.org/extlink&oid=28361610&loc=d3e1928-114920 + Details
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- Definition The amount of the cost recognized during the period for defined contribution plans. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 70 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6414718&loc=d3e28014-114942 + Details
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- Definition Sum of the allocated, committed-to-be-released and suspense shares of the entity held by the plan. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 40 -Section 50 -Paragraph 1 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=6418621&loc=d3e17540-113929 + Details
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