Postretirement Benefit Plans (Tables)

6 Months Ended

Jun. 30, 2012

Postretirement Benefit Plans [Abstract]

Components of Net Periodic Benefit Cost

Components of Net Periodic Benefit Cost

	UNITED STATES
(In thousands)	Three Months Ended June  30						Six Months Ended June  30
	2012			2011			2012			2011
Interest cost	$	1,735		$	1,761		$	3,471		$	3,523
Expected return on plan assets		(2,103	)		(2,013	)		(4,205	)		(4,025	)
Amortization of net loss		932			786			1,863			1,571
Net periodic benefit cost	$	564		$	534		$	1,129		$	1,069

	UNITED KINGDOM
(In thousands)	Three Months Ended June  30						Six Months Ended June  30
	2012			2011			2012			2011
Interest cost	$	210		$	279		$	419		$	555
Expected return on plan assets		(221	)		(264	)		(441	)		(525	)
Amortization of net loss		11			52			22			103
Net periodic benefit cost	$	—		$	67		$	—		$	133