Benefit Plans

9 Months Ended

Sep. 30, 2015

Compensation and Retirement Disclosure [Abstract]

Pension and Other Postretirement Benefits Disclosure

Benefit Plans

The Corporation sponsors several qualified and nonqualified pension and other postretirement plans for certain of its employees. The net periodic pension cost is based on estimated values provided by an outside actuary. The components of net periodic benefit cost are as follows:

	Pension Benefits
	Three Months Ended September 30,						Nine Months Ended September 30,
(In thousands)	2015			2014			2015			2014
Service cost	$	207		$	182		$	622		$	546
Interest cost	3,517			3,584			10,552			10,753
Expected return on assets	(3,902		)	(4,009		)	(11,706		)	(12,026		)
Amortization of unrecognized prior service costs	570			633			1,709			1,965
Amortization of actuarial losses/(gains)	1,057			708			3,169			2,221
Net periodic pension cost	$	1,449		$	1,098		$	4,346		$	3,459

	Postretirement Benefits
	Three Months Ended September 30,						Nine Months Ended September 30,
(In thousands)	2015			2014			2015			2014
Service cost	$	41		$	16		$	124		$	49
Interest cost	144			164			432			491
Amortization of unrecognized prior service costs	(160		)	(117		)	(479		)	(351		)
Amortization of actuarial losses/(gains)	81			59			245			177
Net periodic postretirement cost	$	106		$	122		$	322		$	366

For further information on the Corporation's employee benefit plans, refer to Note 14 (Benefit Plans) to the consolidated financial statements in the 2014 Form 10-K.