Pension Plan (Tables)

3 Months Ended

Mar. 31, 2012

Pension Plan [Abstract]

Components Of Net Periodic Benefit Expense

(in thousands)	Three months ended March 31,
	2012	2011
Service cost	$1,068	$1,139
Interest cost	1,012	992
Expected return on plan assets	(2,186)	(1,886)
Amortization of prior service cost	5	5
Recognized net actuarial loss	427	353
Benefit expense	$326	$603