Employee Benefit Plans (Tables)

9 Months Ended

Sep. 30, 2011

Employee Benefit Plans (Tables) [Abstract]

Employee Benefit Plans

	Pension Benefits
(in thousands)	Three months ended September 30,						Nine months ended September 30,
	2011			2010			2011			2010
Service cost	$	—		$	—		$	—		$	1,614
Interest cost		1,145			1,085			3,434			3,254
Expected return on plan assets		(1,559	)		(1,363	)		(4,677	)		(4,088	)
Recognized net actuarial loss		235			251			705			1,567
Benefit (income) cost	$	(179	)	$	(27	)	$	(538	)	$	2,347

	Postretirement Benefits
(in thousands)	Three months ended September 30,						Nine months ended September 30,
	2011			2010			2011			2010
Service cost	$	139		$	116		$	416		$	349
Interest cost		321			304			964			910
Amortization of prior service cost credit		(136	)		(128	)		(407	)		(383	)
Recognized net actuarial loss		225			173			676			518
Benefit cost	$	549		$	465		$	1,649		$	1,394