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Acquisition of Trade Secret - Additional Information (Detail) $ in Thousands, AUD in Millions |  | 12 Months Ended |  |  |
--- | --- | --- | --- | --- | ---
Oct. 24, 2015 USD ($) Store | Oct. 24, 2015 AUD | Jan. 30, 2016 USD ($) | Jan. 31, 2015 USD ($) | Feb. 01, 2014 USD ($) | Feb. 02, 2013 USD ($)
Business Acquisition [Line Items] |  |  |  |  |  |
Acquisition of Trade Secret, net of cash received |  |  | $ 57,104 |  |  |
Goodwill acquired |  |  | $ 193,911 | $ 169,022 | $ 169,273 | $ 170,288
Trade Secret |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Business acquisition,date of acquisition | Oct. 24, 2015 | Oct. 24, 2015 |  |  |  |
Business acquisition, number of operating stores acquired | Store | 35 |  |  |  |  |
Acquisition of Trade Secret, net of cash received | $ 59,000 | AUD 83 |  |  |  |
Identifiable amortizable intangible assets | $ 12,000 |  |  |  |  |
Identifiable intangible assets, amortization period | 10 years | 10 years |  |  |  |
Goodwill acquired | $ 25,000 |  |  |  |  |

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