Inventories (Details) - USD ($) $ in Thousands	Aug. 01, 2015	Jan. 31, 2015
Inventory Disclosure [Abstract]
Raw materials	$ 3,409	$ 4,548
Work in progress	59	77
Finished goods	331,992	314,453
Inventories	335,460	319,078
Allowance to write down inventories to the lower of cost or market	$ 18,600	$ 19,700