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Term Loan and Line of Credit (Line of Credit) (Details) - USD ($)
12 Months Ended
Jan. 27, 2021
Apr. 24, 2020
Jan. 30, 2021
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
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
Line of Credit | The First Amendement      
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%    
Line of Credit | The First Amendement | Minimum [Member]      
Debt Instrument [Line Items]      
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage 1.25%    
Line of Credit | The First Amendement | Minimum [Member] | London Interbank Offered Rate (LIBOR)      
Debt Instrument [Line Items]      
Interest rate on borrowings (percent) 1.25%    
Line of Credit | The First Amendement | Maximum [Member]      
Debt Instrument [Line Items]      
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage 1.75%    
Line of Credit | The First Amendement | Maximum [Member] | London Interbank Offered Rate (LIBOR)      
Debt Instrument [Line Items]      
Interest rate on borrowings (percent) 1.75%    
Line of Credit | Amended Revolving Credit Facility      
Debt Instrument [Line Items]      
Revolving credit facility maximum borrowings   $ 225,000,000.0  
Line of Credit | Amended Revolving Credit Facility | Minimum [Member]      
Debt Instrument [Line Items]      
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage   2.00%  
Line of Credit | Amended Revolving Credit Facility | Minimum [Member] | London Interbank Offered Rate (LIBOR)      
Debt Instrument [Line Items]      
Interest rate on borrowings (percent)   2.00%  
Line of Credit | Amended Revolving Credit Facility | Maximum [Member]      
Debt Instrument [Line Items]      
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage   2.25%  
Line of Credit | Amended Revolving Credit Facility | Maximum [Member] | London Interbank Offered Rate (LIBOR)      
Debt Instrument [Line Items]      
Interest rate on borrowings (percent)   2.25%