Leases - Supplemental Cash Flow and Balance Sheet Information Related to Leases (Details) - USD ($) $ in Thousands		9 Months Ended
		Oct. 31, 2020	Nov. 02, 2019
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows for operating leases	[1]	$ 33,233	$ 43,633
Non-cash operating activities:
Right-of-use assets obtained in exchange for operating lease liabilities		645	$ 3,245
Net decrease in right-of-use assets due to lease modifications associated with rent concessions and lease exits		$ (2,283)
Weighted average remaining lease term		4 years 8 months 12 days	5 years 6 months
Weighted average discount rate		6.46%	7.12%

[1] This decrease in cash payments for the first nine months of fiscal 2020 as compared to the prior year is primarily due to rent abatements and deferments negotiated primarily during the second quarter of fiscal 2020 for rent obligations due while stores were closed.