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BENEFIT PLANS (Tables)
6 Months Ended
Jun. 30, 2024
BENEFIT PLANS  
Schedule of net periodic benefit cost

Pension Benefits

Three Months Ended

Six Months Ended

June 30, 

June 30, 

(000’s omitted)

    

2024

    

2023

    

2024

    

2023

Service cost

$

1,004

$

1,108

$

2,177

$

2,216

Interest cost

1,902

1,890

3,800

3,780

Expected return on plan assets

 

(4,660)

 

(4,020)

(9,260)

(8,040)

Amortization of unrecognized net loss

 

349

 

(555)

632

(1,110)

Amortization of prior service cost

 

205

 

205

410

410

Net periodic benefit

$

(1,200)

$

(1,372)

$

(2,241)

$

(2,744)