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PENSION BENEFITS (Tables)
6 Months Ended
Jun. 30, 2012
PENSION, OTHER POST RETIREMENT BENEFIT AND PROFIT SHARING PLANS [Abstract]  
Components of Net Periodic Benefit Cost
The following table presents the components of net periodic benefit costs for the periods indicated:
 
 
   
Three months ended
  
Six months ended
 
   
June 30,
  
June 30,
 
   
2012
  
2011
  
2012
  
2011
 
   
(In thousands)
   
Service cost
 $2,592  $2,082  $5,184  $4,164 
Interest cost
  2,072   2,028   4,144   4,056 
Expected return on assets
  (2,012)  (3,713)  (5,682)  (7,426)
Amortization of unrecognized transition amount
  5   5   10   10 
Recognized prior service cost
  (192)  50   (384)  100 
Recognized net loss
  1,379   578   2,758   1,156 
Net periodic benefit costs
 $3,844  $1,030  $6,030  $2,060