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Note 5 - Debt (Tables)
6 Months Ended
Jun. 30, 2018
Notes Tables  
Schedule of Long-term Debt Instruments [Table Text Block]
(in thousands)
 
June 30,
2018
   
December 30,
2017
 
Revolving Credit Facility
  $
    $
 
Term Loan
   
157,500
     
122,500
 
Euro Senior Notes, Series A due 2023
   
135,335
     
139,623
 
Euro Senior Notes, Series B due 2028
   
109,887
     
113,369
 
U.S. Senior Notes, Series A due 2022
   
25,000
     
25,000
 
U.S. Senior Notes, Series B due 2027
   
100,000
     
100,000
 
U.S. Senior Notes, Series A due 2025
   
50,000
     
 
U.S. Senior Notes, Series B due 2030
   
125,000
     
 
Other
   
60
     
 
Unamortized debt issuance costs
   
(5,184
)
   
(4,881
)
Total debt
   
697,598
     
495,611
 
Less: Current maturities
   
(10,060
)
   
(6,250
)
Total long-term debt
  $
687,538
    $
489,361