Condensed Consolidated Statement of Stockholders' Equity/(Deficit) (Unaudited) - 3 months ended Mar. 31, 2016 - USD ($) $ in Thousands	Total	Common Stock	Additional paid-in capital	Retained deficit	Accumulated other comprehensive income
Beginning Balance, Shares at Dec. 31, 2015	26,921,066	26,921,000
Beginning Balance at Dec. 31, 2015	$ (1,489)	$ 269	$ 521,842	$ (707,592)	$ 183,992
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income/(loss)	18,568			18,568
Stock-based compensation issued, net, Shares		145,000
Stock-based compensation issued, net	(385)	$ 2	(387)
Stock-based compensation expense	2,666		2,666
Interest rate swaps other comprehensive income before reclassifications	(240)				(240)
Interest rate swaps reclassified from accumulated other comprehensive income	364				364
Employee benefits reclassified from accumulated other comprehensive income	$ (36,500)				(36,500)
Ending Balance, Shares at Mar. 31, 2016	27,065,799	27,066,000
Ending Balance at Mar. 31, 2016	$ (17,016)	$ 271	$ 524,121	$ (689,024)	$ 147,616