Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
	Jul. 31, 2021	Aug. 01, 2020	Jul. 31, 2021	Aug. 01, 2020	Jan. 30, 2021
Cash Flows from Operating Activities:
Net income (loss)	$ 26,187	$ (46,845)	$ 17,258	$ (225,135)
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Goodwill and intangible impairment charges	0	0	0	113,180
Inventory write-offs			374	54,308
Depreciation and amortization			27,348	33,613
Non-cash lease expense			95,317	100,710
Exit of frontline Canada operations			0	(498)
Right of use asset impairment			0	3,236
Loss on disposal and impairment of property and equipment, net			1,335	18,637
Deferred tax benefit			250	(6,756)
Share-based compensation expense			5,689	3,793
Changes in assets and liabilities:
Inventories			1,481	(44,926)
Prepaid expenses and other assets			(8,165)	2,743
Income tax receivable			16,442	(78,809)
Accounts payable			2,991	(26,300)
Accrued and other liabilities			6,259	(338)
Lease liability			(132,549)	(38,673)
Net cash provided by (used in) operating activities			34,030	(90,219)
Cash Flows from Investing Activities:
Purchases of marketable securities			(219)	(5,212)
Proceeds from sale of marketable securities			7,826	48,326
Purchases of property and equipment			(5,150)	(8,151)
Net cash provided by investing activities			2,457	34,963
Cash Flows from Financing Activities:
Proceeds from borrowings			0	106,500
Proceeds from issuance of common stock			0	251
Dividends paid			0	(10,701)
Payments of tax withholdings related to share-based awards			(980)	(995)
Net cash (used in) provided by financing activities			(980)	95,055
Effects of exchange rate changes on cash and cash equivalents			0	(6)
Net increase in cash and cash equivalents			35,507	39,793
Cash and Cash Equivalents, Beginning of period			90,791	63,972	$ 63,972
Cash and Cash Equivalents, End of period	$ 126,298	$ 103,765	126,298	103,765	$ 90,791
Supplemental Disclosures of Cash Flow Information:
Cash paid for interest			3,053	1,277
Cash received for income taxes, net			$ 15,976	$ 7,541