Accumulated Comprehensive Income Reclassifications out of Accumulated Comprehensive Loss (Details) (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2013
Statement of Other Comprehensive Income [Abstract]
Prior service cost	$ 80	[1]
Settlement expense	747	[1]
Actuarial loss	439	[1]
Total before tax	1,266
Income tax benefit	(464)
Amount reclassified out of accumulated other comprehensive loss	$ 802

[1] These accumulated other comprehensive loss components are included in the computation of net periodic pension cost (income) in Note 3 Employee Benefit Plans.