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Retirement Benefit Plans (Tables)
6 Months Ended
Jun. 30, 2012
Retirement Benefit Plans [Abstract]  
Components of the net periodic benefit cost
The components of the net periodic benefit cost for the three and six months ended June 30, 2012 and 2011 were as follows:
 
   
Three Months Ended
 
   
June 30
 
   
Pension Benefits
  
Postretirement
 
   
U.S. Plans
  
Non-U.S. Plans
  
Medical Benefits
 
   
2012
  
2011
  
2012
  
2011
  
2012
  
2011
 
Service cost
 $174  $160  $33  $25  $35  $33 
Interest cost
  483   493   131   122   139   144 
Expected return on plan assets
  (569)  (583)  (118)  (108)  -   - 
Amortization of net actuarial loss (gain)
  282   (12)  -   -   17   (15)
Amortization of prior service cost
  95   138   39   39   (145)  (145)
Foreign currency
  -   -   45   16   -   - 
Net periodic cost
 $465  $196  $130  $94  $46  $17 

   
Six Months Ended
 
   
June 30
 
   
Pension Benefits
  
Postretirement
 
   
U.S. Plans
  
Non-U.S. Plans
  
Medical Benefits
 
   
2012
  
2011
  
2012
  
2011
  
2012
  
2011
 
Service cost
 $339  $326  $66  $50  $70  $66 
Interest cost
  961   1,006   261   244   279   306 
Expected return on plan assets
  (1,140)  (1,163)  (235)  (216)  -   - 
Amortization of net actuarial loss
  568   14   -   -   34   - 
Amortization of prior service cost
  192   275   77   78   (290)  (290)
Foreign currency
  -   -   23   77   -   - 
Net periodic cost
 $920  $458  $192  $233  $93  $82