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Short- and Long-Term Obligations - Narrative (Details)
1 Months Ended 6 Months Ended 12 Months Ended
Jul. 20, 2020
USD ($)
Jul. 31, 2020
USD ($)
Jun. 27, 2020
USD ($)
Dec. 29, 2018
USD ($)
Jun. 18, 2020
USD ($)
Dec. 28, 2019
USD ($)
Debt Instrument [Line Items]            
Weighted average interest rate for revolving credit facility (in hundredths)     1.85%      
Loan receivable     $ 1,026,000      
Commercial Real Estate Loan            
Debt Instrument [Line Items]            
Effective interest rate     4.60%      
Revolving Credit Facility            
Debt Instrument [Line Items]            
Long-term debt     $ 248,743,000     $ 265,419,000
Remaining borrowing capacity     150,830,000      
Revolving Credit Facility | Credit Agreement            
Debt Instrument [Line Items]            
Debt instrument, term       5 years    
Borrowing capacity available under committed portion       $ 400,000,000    
Additional borrowing capacity under uncommitted portion       $ 150,000,000    
Basis spread on variable rate floor (as a percentage)       0.00%    
Maximum amount of unrestricted U.S. cash       $ 30,000,000    
Revolving Credit Facility | Credit Agreement | Base Rate | Minimum            
Debt Instrument [Line Items]            
Basis spread on variable rate (as a percentage)       0.00%    
Revolving Credit Facility | Credit Agreement | Base Rate | Maximum            
Debt Instrument [Line Items]            
Basis spread on variable rate (as a percentage)       1.25%    
Revolving Credit Facility | Credit Agreement | LIBOR | Minimum            
Debt Instrument [Line Items]            
Basis spread on variable rate (as a percentage)       1.00%    
Revolving Credit Facility | Credit Agreement | LIBOR | Maximum            
Debt Instrument [Line Items]            
Basis spread on variable rate (as a percentage)       2.25%    
Revolving Credit Facility | Credit Agreement | Federal Funds Rate            
Debt Instrument [Line Items]            
Basis spread on variable rate (as a percentage)       0.50%    
Revolving Credit Facility | Credit Agreement | Thirty-Day LIBOR            
Debt Instrument [Line Items]            
Basis spread on variable rate (as a percentage)       0.50%    
Revolving Credit Facility | Euro-Denominated Borrowing            
Debt Instrument [Line Items]            
Long-term debt     58,905,000      
Revolving Credit Facility | Canadian Denominated Borrowing            
Debt Instrument [Line Items]            
Long-term debt     22,838,000      
Secured Debt | Commercial Real Estate Loan            
Debt Instrument [Line Items]            
Debt instrument, term       10 years    
Principal amount       $ 21,000,000    
Quarterly installment amount       262,500    
Final payment amount       $ 10,500,000    
Fixed interest rate       4.45%    
Outstanding principal balance         $ 18,900,000  
Senior Promissory Notes, due 2023 to 2028            
Debt Instrument [Line Items]            
Long-term debt     10,000,000     $ 10,000,000
Senior Promissory Notes, due 2023 to 2028 | Note Purchase Agreement            
Debt Instrument [Line Items]            
Additional borrowing capacity under uncommitted portion       $ 115,000,000    
Principal amount       $ 10,000,000    
Fixed interest rate       4.90%    
Senior Promissory Notes, due 2023 to 2028 | Note Purchase Agreement | Minimum            
Debt Instrument [Line Items]            
Minimum debt prepayment increment     $ 1,000,000      
Capital Lease Obligations | Sale Leaseback Arrangement            
Debt Instrument [Line Items]            
Effective interest rate     1.79%      
Net purchase option     $ 1,493,000      
Outstanding balance     $ 3,630,000      
Debt Covenant Period One | Revolving Credit Facility | Credit Agreement            
Debt Instrument [Line Items]            
Maximum consolidated leverage ratio after acquisition     3.75      
Debt Covenant Period Two | Revolving Credit Facility | Credit Agreement            
Debt Instrument [Line Items]            
Maximum consolidated leverage ratio after acquisition     4.00      
Subsequent Event            
Debt Instrument [Line Items]            
Minimum debt prepayment increment   $ 189,000        
Subsequent Event | Secured Debt | Commercial Real Estate Loan            
Debt Instrument [Line Items]            
Prepayment fee, percent 1.00%          
Minimum debt prepayment increment $ 189,000