Pension and Other Postretirement Benefit Plans

The components of net periodic benefit cost for the Corporation’s qualified and nonqualified pension plans and nonqualified postretirement benefit plan are as follows:



	Three Months Ended June 30,						Six Months Ended June 30,
	2014			2013			2014			2013
	(In thousands)
Defined Benefit Pension Plans
Service cost	$	251		$	325		$	501		$	650
Interest cost	1,312			1,167			2,624			2,334
Expected return on plan assets	(2,079		)	(1,948		)	(4,157		)	(3,896		)
Amortization of prior service credit	(1		)	(1		)	(1		)	(1		)
Amortization of unrecognized net loss	569			946			1,138			1,892
Net periodic benefit cost	$	52		$	489		$	105		$	979
Postretirement Benefit Plan
Service cost	$	4		$	4		$	9		$	9
Interest cost	36			36			71			72
Amortization of prior service cost	33			153			65			206
Amortization of unrecognized net gain	(26		)	(18		)	(52		)	(37		)
Net periodic benefit cost	$	47		$	175		$	93		$	250

The Corporation’s pension plan does not have a contribution requirement in 2014. The Corporation made a $15.0 million contribution to the pension plan during the six months ended June 30, 2013. The discount rate used to compute the Corporation's pension plan expense for 2014 is 5.00%.

401(k) Savings Plan expense for the Corporation’s match of participants’ base compensation contributions and a 4% of eligible pay contribution to certain employees who are not grandfathered under the pension plan was $1.0 million and $0.9 million for the three months ended June 30, 2014 and 2013, respectively, and $1.7 million and $1.8 million for the six months ended June 30, 2014 and 2013, respectively.