Supplemental Guarantor Financial Information (Narrative) (Details)	9 Months Ended
Oct. 31, 2015
Supplemental Guarantor Financial Information [Abstract]
Minimum percentage of assets owned by domestic subsidiaries	90.00%
Minimum percentage of accounts receivable and inventory owned by domestic subsidiaries	95.00%

Minimum percentage of accounts receivable and inventory owned by domestic subsidiaries

No definition available.

Name:	lb_MinimumPercentageOfAccountsReceivableAndInventoryOwnedByDomesticSubsidiaries
Namespace Prefix:	lb_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration