Summary of Significant Accounting Policies (Details)	3 Months Ended
	May 04, 2013
Buildings and building equipment [Member] | Minimum [Member]
Property and equipment amortized over the estimated useful life of related assets
Property and equipment, useful life	20 years
Buildings and building equipment [Member] | Maximum [Member]
Property and equipment amortized over the estimated useful life of related assets
Property and equipment, useful life	45 years
Computer hardware, software and equipment [Member] | Minimum [Member]
Property and equipment amortized over the estimated useful life of related assets
Property and equipment, useful life	3 years
Computer hardware, software and equipment [Member] | Maximum [Member]
Property and equipment amortized over the estimated useful life of related assets
Property and equipment, useful life	10 years
Furniture and fixtures [Member]
Property and equipment amortized over the estimated useful life of related assets
Property and equipment, useful life	10 years