Business And Summary Of Significant Accounting Policies (Property And Equipment) (Details)	12 Months Ended
	Jan. 31, 2012 years
Buildings And Improvements [Member]
Property, Plant and Equipment [Line Items]
Property and equipment useful life, maximum, years	39
Property and equipment useful life, minimum, years	15
Leasehold Improvements [Member]
Property, Plant and Equipment [Line Items]
Property and equipment useful life, maximum, years	10
Property and equipment useful life, minimum, years	3
Furniture, Fixtures And Equipment [Member]
Property, Plant and Equipment [Line Items]
Property and equipment useful life, maximum, years	10
Property and equipment useful life, minimum, years	3