Leases - Lease Cost and Supplemental Balance Sheet Information (Details) - USD ($) $ in Thousands	12 Months Ended
	Jan. 30, 2021	Jan. 25, 2020
Leases [Abstract]
Lease cost under long-term operating leases	$ 35,411	$ 33,799
Lease cost under short-term operating leases	28,532	34,111
Variable lease cost under short-term and long-term operating leases	4,113	4,183
Total lease cost	$ 68,056	$ 72,093
Weighted average remaining lease term	3 years 2 months 12 days	3 years 3 months 18 days
Weighted average discount rate	4.60%	5.20%