Stockholders' Equity AOCI Change (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Accumulated Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Net of Tax	$ 14,126	$ 18,749
Foreign currency translation losses	(4,617)	(2,322)
Total accumulated other comprehensive loss	(18,743)	(21,071)
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax	961
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax	(1,367)
Other Comprehensive (Loss) Income	2,328	(1,247)	(4,012)
Accumulated Defined Benefit Plans Adjustment [Member]
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax	3,256
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax	(1,367)
Other Comprehensive (Loss) Income	4,623
Accumulated Translation Adjustment [Member]
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax	(2,295)
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax	0
Other Comprehensive (Loss) Income	$ (2,295)