Stockholders' Equity Comprehensive Loss (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Stockholders' Equity Note [Abstract]
Net (loss) income	$ (15,998)	$ (10,622)
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Gain (Loss), before Reclassification and Tax	(415)	33
Other Comprehensive (Income) Loss, Pension and Other Postretirement Benefit Plans, Adjustment, before Reclassification Adjustments, Net of Tax	253	345
Comprehensive (loss) income	$ (16,160)	$ (10,244)