Condensed Consolidated Statement of Shareholders' Deficit - USD ($) shares in Thousands, $ in Thousands	Preferred Stock	Common Stock	Additional Paid In Capital	Accumulated Deficit	Accumulated Other Comprehensive Income	Total
Beginning balance at Dec. 31, 2014	$ 25	$ 20,096	$ 1,564,805	$ (1,648,718)		$ (63,792)
Beginning balance (in shares) at Dec. 31, 2014	2,509	200,976
Issuance of preferred stock (in shares)
Pension and post retirement benefit - net actuarial loss					$ (1,104)	(1,104)
Restricted stock granted and repurchased		$ 107	(288)			(181)
Restricted stock granted and repurchased (in shares)		1,066
Amortization of stock based compensation			1,772			1,772
Net loss				(2,239,643)		(2,239,643)
Ending balance at Dec. 31, 2015	$ 25	$ 20,203	1,566,289	(3,888,361)	(1,104)	(2,302,948)
Ending balance (in shares) at Dec. 31, 2015	2,509	202,042
Restricted stock granted and repurchased		$ 70	(71)			(1)
Restricted stock granted and repurchased (in shares)		717
Amortization of stock based compensation			583			583
Net loss				(135,082)		(135,082)
Ending balance at Mar. 31, 2016	$ 25	$ 20,273	$ 1,566,801	$ (4,023,443)	$ (1,104)	$ (2,437,448)
Ending balance (in shares) at Mar. 31, 2016	2,509	202,759