Employee Benefit Plans (Tables)

6 Months Ended

Jun. 30, 2013

Compensation and Retirement Disclosure [Abstract]

Schedule of Defined Benefit Plans Disclosures [Table Text Block]

The net periodic benefit cost for the Corporation’s Pension Plan, as determined by consulting actuaries, consisted of the following components:

	Three months ended June 30						Six months ended June 30
	2013			2012			2013			2012
	(in thousands)
Service cost (1)	$	51		$	39		$	102		$	78
Interest cost	772			806			1,544			1,612
Expected return on plan assets	(800		)	(808		)	(1,600		)	(1,616		)
Net amortization and deferral	596			420			1,192			840
Net periodic benefit cost	$	619		$	457		$	1,238		$	914

(1) The Pension Plan service cost recorded for the three and six months ended June 30, 2013 and 2012, respectively, was related to administrative costs associated with the plan and was not due to the accrual of additional participant benefits.

The net periodic benefit cost for the Corporation’s Postretirement Plan, as determined by consulting actuaries, consisted of the following components:

	Three months ended June 30						Six months ended June 30
	2013			2012			2013			2012
	(in thousands)
Service cost	$	57		$	53		$	114		$	106
Interest cost	81			87			162			174
Expected return on plan assets	—			(1		)	—			(2		)
Net accretion and deferral	(91		)	(91		)	(182		)	(182		)
Net periodic benefit cost	$	47		$	48		$	94		$	96