Pension and Other Postretirement Plans (Tables)

6 Months Ended

Jun. 30, 2011

Pension and Other Postretirement Plans (Tables) [Abstract]

Net Periodic Benefit Cost

		Three Months Ended				Six Months Ended
(In thousands)		June 30,				June 30,
		2011		2010		2011		2010
Pension Benefits
Components of net periodic benefit cost:
Service cost	$	1,514	$	1,403	$	3,054	$	2,937
Interest cost		3,030		2,781		6,110		5,822
Expected return on assets		(3,473)		(2,720)		(7,004)		(5,694)
Amortization of:
Prior service cost		107		101		216		212
Actuarial loss		931		802		1,877		1,678
Net periodic benefit cost	$	2,109	$	2,367	$	4,253	$	4,955
Postretirement Benefits
Components of net periodic benefit cost:
Service cost	$	514	$	443	$	1,001	$	926
Interest cost		1,036		906		2,018		1,896
Expected return on assets		(418)		(283)		(814)		(592)
Amortization of:
Transition obligation		113		98		219		205
Prior service cost		29		25		57		53
Actuarial loss		117		101		228		211
Net periodic benefit cost	$	1,391	$	1,290	$	2,709	$	2,699