Components of Net Periodic Benefit Cost (Tables)

9 Months Ended

Sep. 30, 2011

Components of Net Periodic Benefit Cost

Components of Net Periodic Benefit Cost

	Three Months Ended September 30,												Nine Months Ended September 30,
	Pension Benefits						Other Benefits						Pension Benefits						Other Benefits
(in thousands)	2011			2010			2011			2010			2011			2010			2011			2010
Service cost — benefits earned during the period	$	3,354		$	3,416		$	82		$	71		$	10,136		$	10,012		$	245		$	204
Interest cost on projected benefit obligation	8,812			8,725			110			138			26,513			26,201			330			413
Expected return on plan assets	(10,064		)	(10,045		)							(30,253		)	(30,153		)
Amortization of unrecognized transition obligation	60			52									188			170
Amortization of prior service cost	519			653			(161		)	(138		)	1,559			1,959			(482		)	(414		)
Recognized actuarial net (gain) or loss	5,856			4,054			(109		)	(112		)	17,568			12,164			(327		)	(337		)
Settlement loss (gain)				15									(2,491		)	46
Net periodic benefit (income) cost	$	8,537		$	6,870		$	(78	)	$	(41	)	$	23,220		$	20,399		$	(234	)	$	(134	)