Stockholders' Equity Comprehensive Loss (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Stockholders' Equity Note [Abstract]
Net loss	$ (36,870)	$ (15,127)
Other Comprehensive (Income) Loss, Pension and Other Postretirement Benefit Plans, Adjustment, Net of Tax	(456)	(1,022)
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax	611	(4,314)
Total comprehensive loss	$ (35,803)	$ (18,419)