XML 18 R25.htm IDEA: XBRL DOCUMENT v2.4.0.6
Goodwill and Other Intangible Assets (Tables)
3 Months Ended
Apr. 01, 2012
Goodwill and Other Intangible Assets [Abstract]  
Acquired intangible assets subject to amortization
   Acquired intangible assets subject to amortization as of April 1, 2012 and December 31, 2011 were as follows:

   
April 1, 2012
 
December 31, 2011
(millions of dollars)
   
Gross Carrying Amount
     
Accumulated Amortization
     
Gross Carrying Amount
     
Accumulated Amortization
 
Patents and trademarks
 
$
6.2
     
3.9
     
6.2
     
4.0
 
Customer lists
   
2.7
     
1.4
     
2.7
     
1.5
 
   
$
8.9
     
5.3
     
8.9
     
5.5