XML 43 R30.htm IDEA: XBRL DOCUMENT v3.20.2
BENEFIT PLANS (Tables)
 6 Months Ended
Jun. 30, 2020
BENEFIT PLANS [Abstract]  
Net Periodic Benefit Cost
The net periodic benefit cost for the three and six months ended June 30, 2020 and 2019 is as follows:

  
Pension Benefits
    
Post-retirement Benefits
  
   
Three Months Ended
    
Six Months Ended
    
Three Months Ended
    
Six Months Ended
  
   
June 30,
    
June 30,
    
June 30,
    
June 30,
  
(000’s omitted)
  
2020
    
2019
    
2020
    
2019
    
2020
    
2019
    
2020
    
2019
  
Service cost
  
$
1,438
    
$
1,270
    
$
2,875
    
$
2,540
    
$
0
    
$
0
    
$
0
    
$
0
  
Interest cost
    
1,356
      
1,565
      
2,712
      
3,133
      
14
      
18
      
28
      
35
  
Expected return on plan assets
    
(3,932
)
    
(3,578
)
    
(7,864
)
    
(7,155
)
    
0
      
0
      
0
      
0
  
Amortization of unrecognized net loss
    
810
      
643
      
1,620
      
1,284
      
10
      
9
      
20
      
19
  
Amortization of prior service cost
    
60
      
16
      
120
      
31
      
(44
)
    
(45
)
    
(89
)
    
(89
)
Net periodic benefit
  
$
(268
)
  
$
(84
)
  
$
(537
)
  
$
(167
)
  
$
(20
)
  
$
(18
)
  
$
(41
)
  
$
(35
)