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Long-Term Obligations - Narrative (Details)
€ in Millions
3 Months Ended
Mar. 02, 2017
USD ($)
Mar. 02, 2017
EUR (€)
Apr. 01, 2017
USD ($)
Apr. 02, 2016
USD ($)
Dec. 31, 2016
USD ($)
Debt Instrument [Line Items]          
Proceeds from issuance of debt     $ 8,000,000 $ 41,046,000  
Weighted average interest rate for revolving credit facility (in hundredths)     1.68%    
Loan receivable     $ 288,000    
Capital lease obligations     4,359,000   $ 4,309,000
Revolving Credit Facility [Member]          
Debt Instrument [Line Items]          
Revolving Credit Facility, due 2022     65,625,000   $ 61,494,000
Remaining borrowing capacity     134,960,000    
Revolving Credit Facility [Member] | Euro-Denominated Borrowing [Member]          
Debt Instrument [Line Items]          
Revolving Credit Facility, due 2022     $ 26,625,000    
Capital Lease Obligations [Member] | Sale Leaseback Arrangement [Member]          
Debt Instrument [Line Items]          
Effective interest rate     1.70%    
Net purchase option     $ 1,428,000    
Capital lease obligations     4,243,000    
Capital Lease Obligations [Member] | PAAL Equipment Capital Lease [Member]          
Debt Instrument [Line Items]          
Capital lease obligations     $ 116,000    
Weighted average interest rate     3.44%    
Remaining term     2 years 10 months 24 days    
Revolving Credit Facility [Member] | 2017 Credit Agreement [Member]          
Debt Instrument [Line Items]          
Term of unsecured revolving credit facility 5 years 5 years      
Borrowing capacity available under committed portion $ 200,000,000        
Additional borrowing capacity $ 100,000,000        
Basis spread on variable rate floor (as a percentage) 0.00% 0.00%      
Percentage of foreign unrestricted cash 65.00%        
Maximum unrestricted cash $ 30,000,000        
Proceeds from issuance of debt $ 42,000,000 € 26.3      
Maximum consolidated leverage ratio 3.5 3.5      
Minimum consolidated interest coverage ratio 3 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% 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% 0.50%      
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% 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% 2.00%