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Long-Term Obligations - Narrative (Details) - USD ($)
12 Months Ended
Jul. 06, 2018
Dec. 30, 2017
Sep. 29, 2018
Debt Instrument [Line Items]      
Weighted average interest rate for revolving credit facility (in hundredths)     3.07%
Loan receivable     $ 645,000
Capital lease obligations   $ 4,633,000 4,277,000
Commercial Real Estate Loan [Member]      
Debt Instrument [Line Items]      
Debt issuance costs     $ 158,000
Interest rate     4.55%
Revolving Credit Facility [Member]      
Debt Instrument [Line Items]      
Outstanding balance   $ 237,011,000 $ 168,468,000
Remaining borrowing capacity     131,156,000
Revolving Credit Facility [Member] | Canadian Denominated Borrowing [Member]      
Debt Instrument [Line Items]      
Outstanding balance     43,687,000
Revolving Credit Facility [Member] | Euro-Denominated Borrowing [Member]      
Debt Instrument [Line Items]      
Outstanding balance     $ 33,781,000
Secured Debt [Member] | Commercial Real Estate Loan [Member]      
Debt Instrument [Line Items]      
Term of unsecured revolving credit facility 10 years    
Outstanding balance $ 10,500,000    
Principal amount 21,000,000    
Quarterly installment amount $ 262,500    
Fixed interest rate 4.45%    
Capital Lease Obligations [Member] | Sale Leaseback Arrangement [Member]      
Debt Instrument [Line Items]      
Interest rate     1.79%
Net purchase option     $ 1,545,000
Capital lease obligations     4,205,000
Capital Lease Obligations [Member] | Other Capital Lease Obligations [Member]      
Debt Instrument [Line Items]      
Capital lease obligations     $ 72,000
Revolving Credit Facility [Member] | 2017 Credit Agreement [Member]      
Debt Instrument [Line Items]      
Term of unsecured revolving credit facility   5 years  
Borrowing capacity available under committed portion   $ 300,000,000  
Additional borrowing capacity   $ 100,000,000  
Percentage of foreign unrestricted cash   65.00%  
Maximum unrestricted cash   $ 30,000,000  
Maximum consolidated leverage ratio   3.5  
Minimum consolidated interest coverage ratio   3  
Revolving Credit Facility [Member] | 2017 Credit Agreement [Member] | Federal Funds Rate [Member]      
Debt Instrument [Line Items]      
Basis spread on variable rate (in hundredths)   0.50%  
Revolving Credit Facility [Member] | 2017 Credit Agreement [Member] | Thirty-day LIBOR [Member]      
Debt Instrument [Line Items]      
Basis spread on variable rate (in hundredths)   0.50%  
Revolving Credit Facility [Member] | 2017 Credit Agreement [Member] | LIBOR [Member]      
Debt Instrument [Line Items]      
Basis spread on variable rate floor (as a percentage)   0.00%  
Revolving Credit Facility [Member] | 2017 Credit Agreement [Member] | LIBOR [Member] | Minimum [Member]      
Debt Instrument [Line Items]      
Basis spread on variable rate (in hundredths)   1.00%  
Revolving Credit Facility [Member] | 2017 Credit Agreement [Member] | LIBOR [Member] | Maximum [Member]      
Debt Instrument [Line Items]      
Basis spread on variable rate (in hundredths)   2.00%  
Debt Covenant Period One [Member] | Secured Debt [Member] | Commercial Real Estate Loan [Member]      
Debt Instrument [Line Items]      
Prepayment fee 2.00%    
Debt Covenant Period Two [Member] | Secured Debt [Member] | Commercial Real Estate Loan [Member]      
Debt Instrument [Line Items]      
Prepayment fee 1.00%