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Inventories (Details) - USD ($)
$ in Thousands
Jul. 29, 2017
Jan. 28, 2017
Inventory Disclosure [Abstract]    
Raw materials $ 631 $ 799
Work in progress 79 78
Finished goods 435,334 366,504
Inventories 436,044 367,381
Allowance to write down inventories to the lower of cost or net realizable value $ 24,800 $ 19,400