BENEFIT PLANS (Tables)

6 Months Ended

Jun. 30, 2013

BENEFIT PLANS [Abstract]

Net periodic benefit cost

The net periodic benefit cost for the three and six months ended June 30, 2013 and 2012 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)	2013	2012	2013	2012	2013	2012	2013	2012
Service cost	$985	$848	$1,970	$1,696	$0	$0	$0	$0
Interest cost	1,028	1,098	2,057	2,197	22	29	44	57
Expected return on plan assets	(2,451)	(2,299)	(4,902)	(4,598)	0	0	0	0
Amortization of unrecognized net loss	1,008	922	2,015	1,844	3	3	6	6
Amortization of prior service cost	14	(37)	29	(74)	(45)	(206)	(90)	(411)
Net periodic benefit cost	$584	$532	$1,169	$1,065	($20)	($174)	($40)	($348)