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Description of Business and Summary of Significant Accounting Policies (Depreciable Life Range of Property Plant and Equipment) (Details) | 12 Months Ended
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Jan. 31, 2015
Software, including software developed for internal use |
Depreciable Life Range | 3 - 7 years
Store related assets |
Depreciable Life Range | 3 - 10 years
Leasehold improvements |
Depreciable Life Range | Shorter of lease term or 10 years
Non-store related building and site improvements |
Depreciable Life Range | 10 - 15 years
Other property and equipment |
Depreciable Life Range | 20 years
Buildings |
Depreciable Life Range | 30 years

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- Definition Describes the periods of time over which an entity anticipates to receive utility from its property, plant and equipment (that is, the periods of time over which an entity allocates the initial cost of its property, plant and equipment). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6367646&loc=d3e18780-107790 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 35 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=6539997&loc=d3e1205-110223 + Details
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- Details
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- Details
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