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Nature of Business - Additional Information (Detail) | 12 Months Ended |
--- | --- | ---
Jan. 31, 2017 Store Customer | Jan. 31, 2016 Store
Nature Of Business [Line Items] |  |
Number of stores for operations | 606 | 572
Number of department and specialty retailers worldwide, sold and distributed apparel to | Customer | 1,900 |
United States |  |
Nature Of Business [Line Items] |  |
Number of stores for operations | 515 | 485
Europe |  |
Nature Of Business [Line Items] |  |
Number of stores for operations | 54 | 52
Canada |  |
Nature Of Business [Line Items] |  |
Number of stores for operations | 37 | 35

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