BENEFIT PLANS (Tables)

6 Months Ended

Jun. 30, 2023

BENEFIT PLANS

Schedule of net periodic benefit cost

	Pension Benefits
	Three Months Ended				Six Months Ended
	June 30,				June 30,
(000’s omitted)	2023		2022		2023		2022
Service cost	$	1,108	$	1,240	$	2,216	$	2,480
Interest cost		1,890		1,334		3,780		2,668
Expected return on plan assets		(4,020)		(4,756)		(8,040)		(9,512)
Amortization of unrecognized net (gain) loss		(555)		211		(1,110)		422
Amortization of prior service cost		205		154		410		308
Net periodic benefit	$	(1,372)	$	(1,817)	$	(2,744)	$	(3,634)