Leases - Supplemental Cash Flow Information Related to Leases (Details) - USD ($) $ in Thousands		6 Months Ended
		Jul. 31, 2021	Aug. 01, 2020
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows for operating leases	[1]	$ 30,954	$ 18,527
Non-cash operating activities:
Right-of-use assets obtained in exchange for operating lease liabilities		$ 4,749	559
Net decrease in right-of-use assets due to lease modifications associated with rent concessions and lease exits			$ (578)
Weighted average remaining lease term		4 years 3 months 18 days	5 years
Weighted average discount rate		6.87%	6.48%

[1] The increase in cash payments for the first six months of fiscal 2021 as compared to the first six months of fiscal 2020 is due to rent abatements and deferments negotiated in the second quarter of fiscal 2020 for rent obligations while stores were closed.  The cash paid for the first six months of fiscal 2021 also includes prepaid rent for August 2021 of $3.8 million.