Annual report pursuant to Section 13 and 15(d)

Summary of significant accounting policies - Customer Loyalty Program (Details)

v3.8.0.1
Summary of significant accounting policies - Customer Loyalty Program (Details) - USD ($)
$ in Thousands
12 Months Ended
Feb. 03, 2018
Jan. 28, 2017
Jan. 30, 2016
Summary of significant accounting policies      
Minimum term that loyalty program points are valid 1 year    
Accrued liability related to loyalty program $ 42,219 $ 30,244  
Cost of customer loyalty programs $ 106,598 $ 77,145 $ 54,464