Leases - Supplemental Cash Flow Information (Details) - USD ($) $ in Thousands	9 Months Ended
	Oct. 31, 2021	Oct. 25, 2020
Leases [Abstract]
Cash paid for amounts included in the measurement of lease liabilities	$ 4,243	$ 3,546
Right-of-use assets obtained in exchange for new operating lease liabilities	$ 7,677	$ 4,119
Weighted-average remaining lease term–operating leases (in years)	5 years 9 months 10 days
Weighted-average discount rate on remaining lease payments–operating leases	6.40%