Pension And Other Postretirement Benefit Plans (Tables)

6 Months Ended

Jun. 30, 2011

Pension And Other Postretirement Benefit Plans

Components Of Net Periodic Cost

	Three Months Ended June 30,												Six Months Ended June 30,
(in thousands)	Pension Benefits						Other Postretirement Benefits						Pension Benefits						Other Postretirement Benefits
	2011			2010			2011			2010			2011			2010			2011			2010
Service cost	$	2,925		$	2,853		$	(58	)	$	30		$	5,901		$	5,706		$	57		$	60
Interest cost		9,984			9,024			(318	)		187			19,111			18,048			285			374
Expected return on plan assets		(13,365	)		(11,107	)		—			—			(25,172	)		(21,713	)		—			—
Amortization of prior service cost		107			135			52			—			209			270			(50	)		—
Amortization of net loss (gain)		1,391			1,743			125			(40	)		3,369			3,485			(118	)		(80	)
Net periodic cost	$	1,042		$	2,648		$	(199	)	$	177		$	3,418		$	5,796		$	174		$	354