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Long-Term Debt and Commitments (Tables)
9 Months Ended
Oct. 02, 2011
Long-Term Debt and Commitments [Abstract] 
Summary of long-term debt

     The following is a summary of long-term debt:
 
(millions of dollars)                                             
October 2,
2011
  
December 31, 2010  
 
5.53% Series 2006A Senior Notes
     
 
Due October 5, 2013
$
50.0
 
$
50.0
Floating Rate Series 2006A Senior Notes
     
 
Due October 5, 2013
 
25.0
   
25.0
Variable/Fixed Rate Industrial
     
 
Development Revenue Bonds Due August 1, 2012
 
8.0
   
8.0
Variable/Fixed Rate Industrial
     
 
Development Revenue Bonds Series 1999 Due November 1, 2014
 
8.2
   
8.2
Installment obligations
 
1.4
   
1.4
Other Borrowings
 
1.7
   
--
 
Total
 
94.3
   
92.6
Less: Current maturities
 
8.6
   
--
Long-term debt
$
85.7
 
$
92.6