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PENSION PLANS (Tables)
9 Months Ended
Sep. 30, 2011
PENSION PLANS 
Aggregate net pension expense relating to the two plan types

 

 
  Three Months Ended   Nine Months Ended  
 
  September 30,
2011
  September 30,
2010
  September 30,
2011
  September 30,
2010
 
 
  (in thousands)
 

Service costs

  $ 275   $ 463   $ 904   $ 1,036  

Interest cost

    285     375     936     970  

Amortization of actuarial loss

    -         19     68     15  

Settlement and other related losses (gains)

    -         242     (726 )   1,149  
                   

Net pension expense

  $ 560   $ 1,099   $ 1,182   $ 3,170