Summary of significant accounting policies - Loyalty Program (Details)  | 
12 Months Ended | 
|---|---|
Jan. 29, 2022  | |
| Summary of significant accounting policies | |
| Minimum term that loyalty program points are valid | 1 year | 
| X | ||||||||||
- Definition The expiration term of points earned through loyalty programs. No definition available. 
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| X | ||||||||||
- References No definition available. 
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