Employee Benefit Plans (Tables)

3 Months Ended

Mar. 31, 2012

Employee Benefit Plans [Abstract]

Net Periodic Cost

	For the Three Months Ended March 31,
(in thousands)	2012			2011
Expense:
Service cost	$	428		$	557
Interest cost		7,434			7,578
Expected return on plan assets		(3,787	)		(3,845	)
Amortization of prior service credit		(1,096	)		(1,096	)
Amortization of net loss		6,825			6,514
	$	9,804		$	9,708