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Estimated Useful Lives of Property and Equipment (Detail)	12 Months Ended
	Jan. 31, 2016
Leasehold Improvements | Minimum
Property, Plant and Equipment [Line Items]
Useful life of assets, years	3 years
Leasehold Improvements | Maximum
Property, Plant and Equipment [Line Items]
Useful life of assets, years	22 years
Fixtures and Equipment | Minimum
Property, Plant and Equipment [Line Items]
Useful life of assets, years	2 years
Fixtures and Equipment | Maximum
Property, Plant and Equipment [Line Items]
Useful life of assets, years	20 years
Building and Building Improvements | Minimum
Property, Plant and Equipment [Line Items]
Useful life of assets, years	10 years
Building and Building Improvements | Maximum
Property, Plant and Equipment [Line Items]
Useful life of assets, years	40 years
Capitalized Software | Minimum
Property, Plant and Equipment [Line Items]
Useful life of assets, years	2 years
Capitalized Software | Maximum
Property, Plant and Equipment [Line Items]
Useful life of assets, years	10 years

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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- Definition

Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.

+ References

No definition available.

+ Details

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- Details

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- Details

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- Details

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- Details

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- Details

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X

- Details

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