Pension and Other Postretirement Plans (Tables)

3 Months Ended

Mar. 31, 2012

Pension and Other Postretirement Plans (Tables) [Abstract]

Net Periodic Benefit Cost

		Three Months Ended
(In thousands)		March 31,
		2012		2011
Pension Benefits
Components of net periodic benefit cost:
Service cost	$	1,823	$	1,540
Interest cost		3,154		3,080
Expected return on assets		(3,818)		(3,531)
Amortization of:
Prior service cost		108		109
Actuarial loss		2,006		946
Net periodic benefit cost	$	3,273	$	2,144
Postretirement Benefits
Components of net periodic benefit cost:
Service cost	$	647	$	487
Interest cost		1,125		982
Expected return on assets		(435)		(396)
Amortization of:
Transition obligation		106		107
Prior service cost		28		27
Actuarial loss		621		111
Net periodic benefit cost	$	2,092	$	1,318