CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Statement of Comprehensive Income [Abstract]
Net loss	$ (33,473)	$ (57,165)
Other comprehensive loss:
Change in pension and postretirement obligations, net of tax of $0 in 2016 and $(6) in 2015	(27)	(11)
Total Other Comprehensive Income (Loss), Net of Tax	(27)	(11)
Comprehensive loss	$ (33,500)	$ (57,176)