Employee Benefit Plans and Other Postretirement Benefits (Tables)

6 Months Ended

Jun. 30, 2012

Pension Plans, Defined Benefit

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


	Three Months Ended June 30,						Six Months Ended June 30,
	2012			2011			2012			2011
(In thousands)
Components of Net Pension Costs
Service cost for benefits earned during the year	$	5,606		$	4,952		$	11,212		$	9,904
Interest cost on accumulated benefit obligation		3,700			3,368			7,400			6,736
Expected return on assets		(3,027	)		(3,386	)		(6,054	)		(6,772	)
Net amortization of unrecognized amounts
Prior service cost		1,498			1,446			2,996			2,891
Actuarial loss		1,229			103			2,458			206

Net pension costs	$	9,006		$	6,483		$	18,012		$	12,965

Other Postretirement Benefit Plans, Defined Benefit

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


	Three Months Ended June 30,						Six Months Ended June 30,
	2012			2011			2012			2011
(In thousands)
Components of Net Postretirement Costs
Service cost for benefits earned during the year	$	464		$	400		$	928		$	800
Interest cost on accumulated benefit obligation		310			297			620			595
Net amortization of unrecognized amounts
Prior service cost		(104	)		(104	)		(209	)		(208	)
Actuarial loss		113			112			226			224

Net postretirement costs	$	783		$	705		$	1,565		$	1,411