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Supplemental Guarantor Financial Information (Narrative) (Details)	3 Months Ended
	Apr. 30, 2016
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%

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- Definition

Minimum percentage of accounts receivable and inventory owned by domestic subsidiaries

+ References

No definition available.

+ Details

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X

- Definition

Minimum percentage of assets owned by domestic subsidiaries

+ References

No definition available.

+ Details

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

X

- Definition

Supplemental Guarantor Financial Information [Abstract]

+ References

No definition available.

+ Details

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