Available-for-sale securities - Summary Of Investments (Details) - USD ($) $ in Thousands	Jul. 30, 2023	Jan. 29, 2023
Debt Securities, Available-for-sale [Line Items]
Fair Value	$ 14,249	$ 13,995
Total available-for-sale securities	16,149	15,635
Gross Unrealized Gain/(Loss)	(1,900)	(1,640)
Convertible debt
Debt Securities, Available-for-sale [Line Items]
Fair Value	14,249	13,995
Total available-for-sale securities	16,149	15,635
Gross Unrealized Gain/(Loss)	$ (1,900)	$ (1,640)