Summary of Significant Accounting Policies (Narrative) (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Aug. 01, 2020	Jan. 29, 2022	Jan. 30, 2021	Feb. 01, 2020
New Accounting Pronouncements Or Change In Accounting Principle [Line Items]
Cash and cash equivalents		$ 117,443	$ 106,532
Credit and debit card receivables		$ 6,700	5,300
Credit and debit card receivable, settlement period, low end of range		3 days
Advertising expenses		$ 58,700	$ 42,100	$ 40,000
COVID-19 Impacts
New Accounting Pronouncements Or Change In Accounting Principle [Line Items]
Percentage of stores opened	50.00%
Percentage of stores opened, effective date		early June