Leases - Lease Cost and Supplemental Balance Sheet Information (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 31, 2021	Jul. 25, 2020	Jul. 31, 2021	Jul. 25, 2020	Jan. 30, 2021
Leases [Abstract]
Lease cost under long-term operating leases	$ 8,796	$ 8,763	$ 17,426	$ 17,615
Lease cost under short-term operating leases	6,064	7,153	11,255	15,984
Variable lease cost under short-term and long-term operating leases	696	1,066	1,940	2,160
Total lease cost	$ 15,556	$ 16,982	$ 30,621	$ 35,759
Operating Lease, Weighted Average Remaining Lease Term	3 years 2 months 12 days		3 years 2 months 12 days		3 years 2 months 12 days
Weighted average discount rate (percent)	4.10%		4.10%		4.60%