Goodwill and Intangible Assets - Schedule of Indefinite-lived Intangible Assets (Details) - USD ($) $ in Thousands	12 Months Ended
	Jan. 26, 2020	Jan. 31, 2021
Indefinite-lived Intangible Assets [Roll Forward]
Indefinite Lived Intangible Assets Transferred	$ (2,300)
Ending balance, indefinite-lived intangible assets	0
Indefinite-lived Intangible Assets (Excluding Goodwill)	0	$ 0
In-process research and development
Indefinite-lived Intangible Assets [Roll Forward]
Beginning balance, indefinite-lived intangible assets	2,300
Indefinite-lived Intangible Assets (Excluding Goodwill)	$ 2,300