Information of Total Assets for Company's Reportable Segments (Detail) (USD $) In Thousands, unless otherwise specified	Jan. 31, 2014	Jan. 31, 2013
Segment Reporting Information [Line Items]
Total assets	$ 830,897	$ 717,772
Licensed
Segment Reporting Information [Line Items]
Total assets	361,634	351,338
Non-licensed
Segment Reporting Information [Line Items]
Total assets	225,163	224,301
Retail
Segment Reporting Information [Line Items]
Total assets	129,895	53,404
Corporate
Segment Reporting Information [Line Items]
Total assets	$ 114,205	$ 88,729