XML 31 R87.htm IDEA: XBRL DOCUMENT v2.4.0.6

Commitments and Contingencies (Detail Textuals 1) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 29, 2012 Agreement Employee	Dec. 31, 2011	Jan. 01, 2011
Commitments and Contingencies [Abstract]
Total rental expense	$ 4.8	$ 4.8	$ 5.0
Carrying amount of capital leases related to trucks and trailors	10.3	5.0	1.9
Net book value of capital leases related to trucks and trailors	$ 9.3	$ 4.0	$ 1.6
Percentages of employees represented by various labour unions	30.00%
Number of collective bargaining agreements	42
Number of collective bargaining agreements up for renewal	10
Number of employees covered under 10 collective bargaining agreements	132

X

- Definition

Carrying amount of capital leases related to trucks and trailors.

+ References

No definition available.

+ Details

Name:	bxc_CarryingAmountOfCapitalLeases
Namespace Prefix:	bxc_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

Net book value of capital leases related to trucks and trailors.

+ References

No definition available.

+ Details

Name:	bxc_NetBookValueOfCapitalLeases
Namespace Prefix:	bxc_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

Represents number of collective bargaining agreements.

+ References

No definition available.

+ Details

Name:	bxc_NumberOfCollectiveBargainingAgreement
Namespace Prefix:	bxc_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Represents number of collective bargaining agreements up for renewal.

+ References

No definition available.

+ Details

Name:	bxc_NumberOfCollectiveBargainingAgreementsUpForRenewal
Namespace Prefix:	bxc_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Represents number of employees covered under collective bargaining agreements up for renewal.

+ References

No definition available.

+ Details

Name:	bxc_NumberOfEmployeesCoveredUnderCollectiveBargainingAgreementsUpForRenewal
Namespace Prefix:	bxc_
Data Type:	xbrli:integerItemType
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

X

- Details

Name:	us-gaap_CommitmentsAndContingenciesDisclosureAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Rental expense incurred for leased assets including furniture and equipment which has not been recognized in costs and expenses applicable to sales and revenues; for example, cost of goods sold or other operating costs and expenses.

+ References

No definition available.

+ Details

Name:	us-gaap_LeaseAndRentalExpense
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration