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Debt - Other Indebtedness (Details)
1 Months Ended 9 Months Ended
Nov. 20, 2017
USD ($)
Aug. 31, 2020
USD ($)
loan
bank
Sep. 27, 2020
USD ($)
Dec. 29, 2019
USD ($)
Nov. 30, 2017
USD ($)
Line of Credit Facility [Line Items]          
Principal     $ 304,800,000 $ 300,000,000.0  
Debt outstanding     300,500,000 295,100,000  
Unamortized debt issuance costs     $ 4,300,000 $ 4,900,000  
Senior notes | 6.5% Notes          
Line of Credit Facility [Line Items]          
Stated interest rate     6.50%   6.50%
Principal         $ 300,000,000
Debt outstanding     $ 300,000,000.0    
Term Loan | Israel Debt          
Line of Credit Facility [Line Items]          
Number of loans | loan   2      
Debt instrument, term   5 years      
Number of banks | bank   2      
Principal   $ 4,800,000      
Term Loan | Israel Debt | Israeli NIS Prime Interest          
Line of Credit Facility [Line Items]          
Basis spread on variable rate   1.50%      
Revolving Credit Facility          
Line of Credit Facility [Line Items]          
Maturity period 5 years        
Maximum borrowing capacity $ 90,000,000.0        
Potential maximum borrowing capacity, subject to lender approval $ 115,000,000.0        
Fixed charge coverage ratio 0.50        
Outstanding borrowings     0    
Remaining borrowing capacity     $ 69,100,000    
Revolving Credit Facility | Federal Funds Rate          
Line of Credit Facility [Line Items]          
Basis spread on variable rate     0.50%    
Revolving Credit Facility | LIBOR rate          
Line of Credit Facility [Line Items]          
Basis spread on variable rate     1.00%    
Revolving Credit Facility | Base Rate | Minimum          
Line of Credit Facility [Line Items]          
Basis spread on variable rate     1.00%    
Revolving Credit Facility | Base Rate | Maximum          
Line of Credit Facility [Line Items]          
Basis spread on variable rate     1.50%    
Revolving Credit Facility | Eurodollar Rate | Minimum          
Line of Credit Facility [Line Items]          
Basis spread on variable rate     2.00%    
Revolving Credit Facility | Eurodollar Rate | Maximum          
Line of Credit Facility [Line Items]          
Basis spread on variable rate     2.50%    
Letter of Credit          
Line of Credit Facility [Line Items]          
Maximum borrowing capacity $ 50,000,000.0        
Outstanding borrowings     $ 6,100,000    
Swing Line Loan          
Line of Credit Facility [Line Items]          
Maximum borrowing capacity $ 10,000,000.0