v3.26.1
Goodwill and intangibles - Narrative (Details) - USD ($)
$ in Millions
3 Months Ended 12 Months Ended
Jan. 31, 2026
Aug. 02, 2025
Feb. 01, 2025
Aug. 03, 2024
Jan. 31, 2026
Feb. 01, 2025
Feb. 03, 2024
Jun. 01, 2024
Finite-Lived Intangible Assets [Line Items]                
Indefinite-lived intangible asset impairment         $ 21.0 $ 94.0 $ 0.0  
Goodwill, Impairment Loss         53.6 272.5 0.0  
Amortization of Intangible Assets         0.5 0.9 1.9  
Amortization of intangible liabilities         1.8 1.8 $ 1.8  
North America                
Finite-Lived Intangible Assets [Line Items]                
Goodwill, Impairment Loss         $ 53.6 272.5    
Goodwill and Intangible Asset Impairment   $ 69.6            
Digital brands                
Finite-Lived Intangible Assets [Line Items]                
Goodwill, Impairment Loss   53.6 $ 149.5 $ 123.0        
Goodwill, Fair Value Disclosure     53.6     53.6   $ 203.1
Diamonds Direct | Trade names                
Finite-Lived Intangible Assets [Line Items]                
Indefinite-lived intangible asset impairment $ 5.0 3.0 7.0 7.0        
Indefinite-Lived Intangible Assets (Excluding Goodwill), Fair Value Disclosure     112.0     112.0   119.0
Blue Nile | Trade names                
Finite-Lived Intangible Assets [Line Items]                
Indefinite-lived intangible asset impairment     41.0 $ 36.0        
Indefinite-Lived Intangible Assets (Excluding Goodwill), Fair Value Disclosure     19.0     19.0   $ 60.0
James Allen | Trade names                
Finite-Lived Intangible Assets [Line Items]                
Indefinite-lived intangible asset impairment   $ 13.0 3.0          
Indefinite-Lived Intangible Assets (Excluding Goodwill), Fair Value Disclosure     $ 15.0     $ 15.0