XML 19 R55.htm IDEA: XBRL DOCUMENT
v2.4.0.6

Income Taxes (Details 3) (USD $) In Thousands, unless otherwise specified | 12 Months Ended
--- | ---
Dec. 29, 2012 | Dec. 31, 2011
Income Taxes [Abstract] |  |
Balance at beginning of the year | $ 66,793 | $ 46,528
Valuation allowance removed for taxes related to: |  |
Income before income taxes |  |
Valuation allowance provided for taxes related to: |  |
Loss before income taxes | 11,257 | 20,265
Effect of a change in judgment |  |
Balance at end of the year | $ 78,050 | $ 66,793

X
- Definition Represents the effect of change in judgement during the period in the valuation allowance for a specified deferred tax asset. + References No definition available. + Details
Name: | bxc_ValuationAllowanceDeferredTaxAssetEffectOfChangeInJudgement
Namespace Prefix: | bxc_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Details
Name: | bxc_ValuationAllowanceProvidedForTaxesRelatedAbstract
Namespace Prefix: | bxc_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | bxc_ValuationAllowanceRemovedForTaxesRelatedAbstract
Namespace Prefix: | bxc_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition This element represent represents valuation allowance provided for taxes related to loss before income tax. + References No definition available. + Details
Name: | bxc_ValuationAllowancesProvidedForTaxesRelatedToIncomeBeforeIncomeTaxes
Namespace Prefix: | bxc_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition This element represents valuation allowances removed for taxes related to income before income taxes. + References No definition available. + Details
Name: | bxc_ValuationAllowancesRemovedForTaxesRelatedToIncomeBeforeIncomeTaxes
Namespace Prefix: | bxc_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32537-109319 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 109 -Paragraph 43-49 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 109 -Paragraph 17 -Subparagraph e -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
Name: | us-gaap_DeferredTaxAssetsValuationAllowance
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Details
Name: | us-gaap_IncomeTaxDisclosureAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration