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Pro Forma Information of Results of Operations (Detail) (Vilebrequin, USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Jan. 31, 2013	Jan. 31, 2012
Vilebrequin
Business Acquisition, Pro Forma Information [Line Items]
Net sales	$ 1,434,784	$ 1,294,161
Net income	$ 59,105	$ 54,465
Net income per share:
Basic	$ 2.95	$ 2.75
Diluted	$ 2.91	$ 2.70

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The pro forma basic net income per share for a period as if the business combination or combinations had been completed at the beginning of a period.

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The pro forma revenue for a period as if the business combination or combinations had been completed at the beginning of the period.

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