Useful Lives of Major Classes of Assets (Detail) |
12 Months Ended |
|---|---|
Jan. 28, 2017 | |
| Buildings | |
| Property, Plant and Equipment, Estimated Useful Lives, Lease Terms [Line Items] | |
| Useful lives in asset class | 25 years |
| Leasehold Improvements | |
| Property, Plant and Equipment, Estimated Useful Lives, Lease Terms [Line Items] | |
| Useful lives in asset class | Lesser of 10 years or the term of the lease |
| Fixtures and Equipment | |
| Property, Plant and Equipment, Estimated Useful Lives, Lease Terms [Line Items] | |
| Useful lives in asset class | 5 years |