Nature Of Operations And Summary Of Significant Accounting Policies (Estimated Useful Life of Land, Property And Equipment By Asset Category) (Details)	12 Months Ended
	Jan. 31, 2015
Minimum [Member] | Buildings and improvements [Member]
Land, Property and Equipment [Line Items]
Estimated useful life (in years)	5 years
Minimum [Member] | Store fixtures and equipment [Member]
Land, Property and Equipment [Line Items]
Estimated useful life (in years)	3 years
Minimum [Member] | Leasehold improvements [Member]
Land, Property and Equipment [Line Items]
Estimated useful life (in years)	5 years
Minimum [Member] | Capitalized software [Member]
Land, Property and Equipment [Line Items]
Estimated useful life (in years)	3 years
Maximum [Member] | Buildings and improvements [Member]
Land, Property and Equipment [Line Items]
Estimated useful life (in years)	40 years
Maximum [Member] | Store fixtures and equipment [Member]
Land, Property and Equipment [Line Items]
Estimated useful life (in years)	15 years
Maximum [Member] | Leasehold improvements [Member]
Land, Property and Equipment [Line Items]
Estimated useful life (in years)	40 years
Maximum [Member] | Capitalized software [Member]
Land, Property and Equipment [Line Items]
Estimated useful life (in years)	7 years