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BENEFIT PLANS (Tables)
3 Months Ended
Mar. 31, 2024
BENEFIT PLANS  
Schedule of net periodic benefit cost

Pension Benefits

Three Months Ended

March 31, 

(000’s omitted)

    

2024

    

2023

Service cost

$

1,173

$

1,108

Interest cost

1,898

1,890

Expected return on plan assets

 

(4,600)

 

(4,020)

Amortization of unrecognized net loss (gain)

 

283

 

(555)

Amortization of prior service cost

 

205

 

205

Net periodic benefit

$

(1,041)

$

(1,372)