Retirement Plans (Tables)

3 Months Ended

Mar. 31, 2013

Retirement Plans [Abstract]

Net periodic benefit cost recognized for the plans

	Three months ended March 31,
	2013		2012
	(In thousands)
Net pension cost included the following components:
Service cost-benefits earned during the period	$	185	$	170
Interest cost on projected benefit obligation		160		172
Amortization of net obligation at transition		—		—
Amortization of prior service cost		38		38
Recognized net actuarial loss		72		72
Net periodic pension cost	$	455	$	452