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COMPONENTS OF QUARTERLY AND YEAR TO DATE NET PERIODIC BENEFIT COSTS (Tables)
9 Months Ended
Sep. 30, 2014
COMPONENTS OF QUARTERLY AND YEAR TO DATE NET PERIODIC BENEFIT COSTS [Abstract]  
Components of net periodic benefit costs
The components of net periodic expense for the Corporation's pension and other benefit plans for the periods indicated are as follows (dollars in thousands):

  
Nine Months Ended
  
Three Months Ended
 
  
September 30, 2014
  
September 30, 2013
  
September 30, 2014
  
September 30, 2013
 
Qualified Pension
        
Service cost, benefits earned during the period
 
$
813
  
$
1,048
  
$
271
  
$
349
 
Interest cost on projected benefit obligation
  
1,305
   
1,226
   
435
   
409
 
Expected return on plan assets
  
(2,379
)
  
(2,181
)
  
(793
)
  
(727
)
Amortization of unrecognized prior service cost
  
6
   
10
   
2
   
3
 
Amortization of unrecognized net loss
  
480
   
1,172
   
160
   
391
 
  Net periodic pension expense
 
$
225
  
$
1,275
  
$
75
  
$
425
 
                 
Supplemental Pension
                
Service cost, benefits earned during the period
 
$
30
  
$
30
  
$
10
  
$
10
 
Interest cost on projected benefit obligation
  
40
   
36
   
14
   
12
 
Amortization of unrecognized net loss
  
19
   
26
   
9
   
9
 
  Net periodic supplemental pension expense
 
$
89
  
$
92
  
$
33
  
$
31
 
                 
Postretirement, Medical and Life
                
Service cost, benefits earned during the period
 
$
33
  
$
36
  
$
11
  
$
12
 
Interest cost on projected benefit obligation
  
54
   
48
   
18
   
16
 
Amortization of unrecognized prior service cost
  
(72
)
  
(73
)
  
(24
)
  
(24
)
Amortization of unrecognized net loss
  
-
   
4
   
-
   
1
 
  Net periodic postretirement, medical and life expense
 
$
15
  
$
15
  
$
5
  
$
5