Segments - Information of total assets for company's reportable segments (Details 1) - USD ($) $ in Thousands		Oct. 31, 2016	Jan. 31, 2016	Oct. 31, 2015
Segment Reporting Information [Line Items]
Total Assets		$ 1,423,441	$ 1,184,070	$ 1,416,492
Corporate
Segment Reporting Information [Line Items]
Total Assets	[1]	122,704	210,599	112,558
Operating Segments | Wholesale
Segment Reporting Information [Line Items]
Total Assets		1,072,994	763,353	1,062,754
Operating Segments | Retail
Segment Reporting Information [Line Items]
Total Assets		$ 227,743	$ 210,118	$ 241,180

[1] includes assets not allocated to any reportable segment.