Components of Net Periodic Benefit Cost (Tables)

3 Months Ended

Mar. 31, 2012

Components of Net Periodic Benefit Cost

Components of net periodic benefit cost

	For the Quarter Ended March 31,
	Pension Benefits						Other Benefits
(in thousands)	2012			2011			2012			2011
Service cost — benefits earned during the period	$	3,679		$	3,387		$	90		$	82
Interest cost on projected benefit obligation	8,499			8,865			96			98
Expected return on plan assets	(10,913		)	(10,072		)	—			—
Amortization of unrecognized transition obligation	59			61			—			—
Amortization of prior service cost	384			519			(160		)	(187		)
Recognized actuarial net (gain) or loss	7,065			5,856			(76		)	(111		)
Settlement loss	3,084			—			—			—
Net periodic benefit cost	$	11,857		$	8,616		$	(50	)	$	(118	)