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Employee Benefits (Detail Textuals) (USD $) In Millions, unless otherwise specified | 3 Months Ended
--- | ---
Mar. 30, 2013 | Jun. 30, 2013 Hourly Pension Plan Subsequent Event
Defined Benefit Plan Disclosure [Line Items] |  |
Deferred and amortized period for defined benefit plan contribution | 5 years |
Total defined benefit employer minimum required contribution related to the 2012 plan year | $ 3.2 |
Cash contribution made in three quarters of 2013 | 0.8 |
Defined benefit employer minimum required contribution for the 2012 plan year not made in 2012 | 2.1 |
Independent appraisals cost of land and buildings located in Charleston, S.C. and Buffalo, N.Y. |  | $ 6.8
Lease back period for real property |  | 20 years

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- Definition Represents the deferred and amortized period for required defined benefit contribution. + References No definition available. + Details
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Balance Type: | na
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- Definition Represents cash contribution to pension plan required to be made in three quarters of year fiscal 2013. + References No definition available. + Details
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- Definition Represents defined benefit employer minimum required contribution for the 2012 plan year not made in 2012. + References No definition available. + Details
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Namespace Prefix: | bxc_
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- Definition Total defined benefit plan employer minimum required contribution related to the 2012 plan year. + References No definition available. + Details
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- Definition Represents the lease back period for real property. + References No definition available. + Details
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- Definition Represents real property valued by independent appraisals. + References No definition available. + Details
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Balance Type: | debit
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- Details
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