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Debt - Credit and Security Agreement (Details) - USD ($)
12 Months Ended
Nov. 20, 2017
May 14, 2014
Dec. 29, 2019
Nov. 30, 2017
Revolving Credit Facility        
Line of Credit Facility [Line Items]        
Maximum borrowing capacity   $ 110,000,000.0    
Debt term   5 years    
Potential maximum borrowing capacity, subject to Lender approval   $ 135,000,000.0    
Outstanding borrowings     $ 0  
Remaining borrowing capacity     $ 69,300,000  
Revolving Credit Facility | Amendment Credit Agreement        
Line of Credit Facility [Line Items]        
Maximum borrowing capacity $ 90,000,000.0      
Debt term 5 years      
Potential maximum borrowing capacity, subject to Lender approval $ 115,000,000.0      
Percentage of Borrowing Base or Total Commitment Amount, less than       50.00%
Revolving Credit Facility | Federal Funds Rate        
Line of Credit Facility [Line Items]        
Basis spread on variable rate (percent)     0.50%  
Revolving Credit Facility | LIBOR Rate        
Line of Credit Facility [Line Items]        
Basis spread on variable rate (percent)     1.00%  
Revolving Credit Facility | Base Rate | Minimum        
Line of Credit Facility [Line Items]        
Basis spread on variable rate (percent)     1.00%  
Revolving Credit Facility | Base Rate | Maximum        
Line of Credit Facility [Line Items]        
Basis spread on variable rate (percent)     1.50%  
Revolving Credit Facility | Eurodollar Rate | Minimum        
Line of Credit Facility [Line Items]        
Basis spread on variable rate (percent)     2.00%  
Revolving Credit Facility | Eurodollar Rate | Maximum        
Line of Credit Facility [Line Items]        
Basis spread on variable rate (percent)     2.50%  
Letter of Credit        
Line of Credit Facility [Line Items]        
Maximum borrowing capacity   50,000,000.0    
Outstanding borrowings     $ 5,400,000  
Letter of Credit | Amendment Credit Agreement        
Line of Credit Facility [Line Items]        
Maximum borrowing capacity 50,000,000.0      
Swing Line Loan        
Line of Credit Facility [Line Items]        
Maximum borrowing capacity   $ 10,000,000.0    
Swing Line Loan | Amendment Credit Agreement        
Line of Credit Facility [Line Items]        
Maximum borrowing capacity $ 10,000,000.0