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Employee Benefit Plans
3 Months Ended
Mar. 31, 2012
Employee Benefit Plans [Abstract]  
Employee Benefit Plans

9. Employee Benefit Plans

The components of net periodic benefit costs for the three months ended March 31, 2012 and 2011 were as follows (dollars in thousands):

 Pension Benefits Other Benefits 
 Three months ended March 31, Three months ended March 31, 
 2012 2011 2012 2011 
Net periodic benefit cost:            
Service cost$ 1,532 $ 1,415 $ 279 $ 212 
Interest Cost  980   890   259   220 
Expected return on plan assets  (734)   (644)   --   -- 
Amortization of prior service cost  99   7   --   -- 
Amortization of prior actuarial loss  275   188   88   59 
Total$ 2,152 $ 1,856 $ 626 $ 491 

The Company has not made any pension contributions in the first three months of 2012 but expects to make total pension contributions of $8.7 million in 2012.