Available-for-sale securities - Summary Of Investments (Details) - USD ($) $ in Thousands	Oct. 30, 2022	Jan. 30, 2022
Debt Securities, Available-for-sale [Line Items]
Fair Value	$ 13,691	$ 12,872
Total available-for-sale securities	15,300	14,401
Gross Unrealized Gain/(Loss)	(1,609)	(1,529)
Convertible debt
Debt Securities, Available-for-sale [Line Items]
Fair Value	13,691	12,872
Total available-for-sale securities	15,300	14,401
Gross Unrealized Gain/(Loss)	$ (1,609)	$ (1,529)