Employee Benefit Plans and Other Postretirement Benefits (Tables)

9 Months Ended

Sep. 30, 2012

Pension Plans, Defined Benefit

Components Of Net Periodic Benefit Cost

For the three- and nine-month periods ended September 30, 2012 and 2011, net pension costs were comprised of the following:

	Three Months Ended September 30,						Nine Months Ended September 30,
	2012			2011			2012			2011
(In thousands)
Components of Net Pension Costs
Service cost for benefits earned during the year	$	5,606		$	4,952		$	16,818		$	14,856
Interest cost on accumulated benefit obligation		3,700			3,368			11,100			10,105
Expected return on assets		(3,027	)		(3,386	)		(9,081	)		(10,158	)
Net amortization of unrecognized amounts
Prior service cost		1,498			1,446			4,495			4,337
Actuarial loss		1,229			103			3,687			308
Net pension costs	$	9,006		$	6,483		$	27,019		$	19,448

Other Postretirement Benefit Plans, Defined Benefit

Components Of Net Periodic Benefit Cost

For the three- and nine-month periods ended September 30, 2012 and 2011, net postretirement costs were comprised of the following:

	Three Months Ended September 30,						Nine Months Ended September 30,
	2012			2011			2012			2011
(In thousands)
Components of Net Postretirement Costs
Service cost for benefits earned during the year	$	464		$	400		$	1,392		$	1,199
Interest cost on accumulated benefit obligation		310			297			931			892
Net amortization of unrecognized amounts
Prior service cost		(104	)		(104	)		(314	)		(312	)
Actuarial loss		113			112			339			337
Net postretirement costs	$	783		$	705		$	2,348		$	2,116