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Restructuring Charges (Detail Textuals) (USD $) In Millions, unless otherwise specified | 3 Months Ended
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Apr. 05, 2014
Restructuring Charges [Abstract] |
Final payment for amendment to corporate headquarters lease in Atlanta, Georgia | $ 0.3

X
- Definition Represents the amount of final payment related to an amendment to our corporate headquarters lease. + References No definition available. + Details
Name: | bxc_FinalPaymentOfAmendmentToLease
Namespace Prefix: | bxc_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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