Pension and Other Postretirement Plans (Tables)

9 Months Ended

Sep. 30, 2011

Pension and Other Postretirement Plans (Tables) [Abstract]

Net Periodic Benefit Cost

		Three Months Ended				Nine Months Ended
(In thousands)		September 30,				September 30,
		2011		2010		2011		2010
Pension Benefits
Components of net periodic benefit cost:
Service cost	$	1,527	$	1,469	$	4,581	$	4,406
Interest cost		3,055		2,912		9,165		8,734
Expected return on assets		(3,502)		(2,848)		(10,507)		(8,541)
Amortization of:
Prior service cost		108		106		324		318
Actuarial loss		939		839		2,816		2,517
Net periodic benefit cost	$	2,127	$	2,478	$	6,379	$	7,434
Postretirement Benefits
Components of net periodic benefit cost:
Service cost	$	500	$	463	$	1,501	$	1,389
Interest cost		1,010		948		3,028		2,844
Expected return on assets		(407)		(296)		(1,221)		(888)
Amortization of:
Transition obligation		110		102		329		307
Prior service cost		28		27		85		80
Actuarial loss		114		106		342		316
Net periodic benefit cost	$	1,355	$	1,350	$	4,064	$	4,048