Pension and Other Postretirement Benefit Plans

6 Months Ended

Jun. 30, 2012

Pension and Other Postretirement Benefit Plans [Abstract]

Pension and Other Postretirement Benefit Plans

Note 11: Pension and Other Postretirement Benefit Plans

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

	Three Months Ended June 30,						Six Months Ended June 30,
	2012			2011			2012			2011
	(In thousands)
Defined Benefit Pension Plans
Service cost	$	303		$	291		$	606		$	582
Interest cost		1,215			1,208			2,430			2,415
Expected return on plan assets		(1,732	)		(1,582	)		(3,463	)		(3,164	)
Amortization of prior service credit		(1	)		—			(1	)		(1	)
Amortization of unrecognized net loss		615			269			1,229			539
Net periodic benefit cost	$	400		$	186		$	801		$	371
Postretirement Benefit Plan
Interest cost	$	36		$	41		$	73		$	83
Amortization of prior service credit		(75	)		(81	)		(150	)		(162	)
Amortization of unrecognized net gain		(7	)		(8	)		(14	)		(16	)
Net periodic benefit income	$	(46	)	$	(48	)	$	(91	)	$	(95	)

A minimum required contribution of $0.4 million is due to the Corporation’s pension plan during 2012, which will be fully funded by a portion of the plan’s available funding balance. The Corporation made a $12.0 million contribution to the pension plan during the first quarter of 2012 related to the 2011 plan year.

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 $0.8 million and $0.7 million for the three months ended June 30, 2012 and 2011, respectively, and $1.5 million and $1.4 million for the six months ended June 30, 2012 and 2011, respectively.