XML 8 R39.htm IDEA: XBRL DOCUMENT
v2.4.0.6

Commitments and Contingencies (Details Textual) | Jun. 30, 2012
--- | ---
Commitments and Contingencies (Textual) [Abstract] |
Percentage of total work force covered under collective bargaining agreements | 30.00%
Percentage of work force expired | 11.00%

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

X
- Definition Percentage of employee labor contracts that expire within the next year. + References No definition available. + Details
Name: | bxc_PercentageOfEmployeeLaborContractsThatExpire
Namespace Prefix: | bxc_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Percentage of employees represented by various labor unions. + References No definition available. + Details
Name: | bxc_PercentageOfEmployeesRepresentedByVariousLaborUnions
Namespace Prefix: | bxc_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant