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Term Loan and Line of Credit (Financing Transactions) (Details)			3 Months Ended	12 Months Ended
	Jan. 27, 2021 USD ($)	Apr. 24, 2020 USD ($)	Aug. 01, 2020 USD ($)	Jan. 30, 2021 USD ($)	Feb. 01, 2020 USD ($)	Feb. 02, 2019 USD ($)	Mar. 20, 2020 USD ($)	Mar. 19, 2020 USD ($)
Debt Instrument [Line Items]
Repayment of note payable under Revolving Credit Facility				$ 50,000,000	$ 0	$ 0
Line of Credit
Debt Instrument [Line Items]
Repayment of note payable under Revolving Credit Facility			$ 50,000,000
Amended Revolving Credit Facility
Debt Instrument [Line Items]
Revolving credit facility maximum borrowings				20,000,000.0
Line of Credit Borrowed and Repaid During Period				0
Amended Revolving Credit Facility | Line of Credit
Debt Instrument [Line Items]
Revolving credit facility maximum borrowings		$ 225,000,000.0
Line of Credit Facility, Accordion Feature, Increase Limit		$ 150,000,000.0
Debt Instrument, Interest Rate, Increase (Decrease)		2.00%
Minimum Availability Of Aggregate Commitments And Loan Cap Required, Percent		15.00%
Minimum Availability Of Loan Cap After Stepdown Date Required, Percent		10.00%
Percent Of Stores Reopened, Stepdown Date		75.00%
Fixed Charge Coverage Ratio		1.00
Period Required For Availability Of Loan Cap Requirement		60 days
Line Of Credit Facility, Maximum Allowed To Be Borrowed Based On Available Cash Balance		$ 50,000,000
Line Of Credit Facility, Cash Limit To Restrict Borrowing		$ 50,000,000
Line of Credit Facility, Remaining Borrowing Capacity				191,000,000	$ 20,000,000	$ 20,000,000
Amended Revolving Credit Facility | Line of Credit | Minimum [Member]
Debt Instrument [Line Items]
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage		2.00%
Amended Revolving Credit Facility | Line of Credit | Minimum [Member] | Base Rate
Debt Instrument [Line Items]
Interest rate on borrowings (percent)		1.00%
Amended Revolving Credit Facility | Line of Credit | Minimum [Member] | London Interbank Offered Rate (LIBOR)
Debt Instrument [Line Items]
Interest rate on borrowings (percent)		2.00%
Amended Revolving Credit Facility | Line of Credit | Maximum [Member]
Debt Instrument [Line Items]
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage		2.25%
Amended Revolving Credit Facility | Line of Credit | Maximum [Member] | Base Rate
Debt Instrument [Line Items]
Interest rate on borrowings (percent)		1.25%
Amended Revolving Credit Facility | Line of Credit | Maximum [Member] | London Interbank Offered Rate (LIBOR)
Debt Instrument [Line Items]
Interest rate on borrowings (percent)		2.25%
Prior Credit Agreement | Line of Credit
Debt Instrument [Line Items]
Long-term Debt							$ 50,000,000	$ 20,000,000
The First Amendement
Debt Instrument [Line Items]
Revolving credit facility maximum borrowings	$ 375,000,000
Line of Credit Facility, Maximum Election To Increase Borrowing Capacity	$ 50,000,000
Line of Credit Facility, Current Borrowing Capacity				$ 225,000,000
The First Amendement | Line of Credit
Debt Instrument [Line Items]
Minimum Availability Of Loan Cap During Diligence Deferral Period	12.50%
Minimum Availability Of Loan Cap Outside Of Diligence Deferral Period	10.00%
The First Amendement | Line of Credit | Minimum [Member]
Debt Instrument [Line Items]
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage	1.25%
The First Amendement | Line of Credit | Minimum [Member] | Base Rate
Debt Instrument [Line Items]
Interest rate on borrowings (percent)	0.25%
The First Amendement | Line of Credit | Minimum [Member] | London Interbank Offered Rate (LIBOR)
Debt Instrument [Line Items]
Interest rate on borrowings (percent)	1.25%
The First Amendement | Line of Credit | Maximum [Member]
Debt Instrument [Line Items]
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage	1.75%
The First Amendement | Line of Credit | Maximum [Member] | Base Rate
Debt Instrument [Line Items]
Interest rate on borrowings (percent)	0.75%
The First Amendement | Line of Credit | Maximum [Member] | London Interbank Offered Rate (LIBOR)
Debt Instrument [Line Items]
Interest rate on borrowings (percent)	1.75%

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Amount of current borrowing capacity under the credit facility considering any current restrictions on the amount that could be borrowed (for example, borrowings may be limited by the amount of current assets), but without considering any amounts currently outstanding under the facility.

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