Condensed Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Statement of Comprehensive Income [Abstract]
Net income (loss)		$ 58,975	$ 182,780	$ 17,840
Other comprehensive income (loss), net of tax:
Foreign currency translation	[1]	(17)	(231)	(10)
Defined benefit pension plan:
Net gain/(loss) arising during the period		0	(344)	(137)
Other Comprehensive Income (Loss), Effect of curtailment		0	0	360
Amortization of prior service cost included in net periodic pension cost		0	0	23
Total defined benefit pension plan	[1]	0	(344)	246
Total other comprehensive income, net of tax		(17)	(575)	236
Comprehensive income (loss)		$ 58,958	$ 182,205	$ 18,076

[1] During the periods presented, the Company did not have material reclassifications out of other comprehensive income.