Condensed Consolidated Statements of Redeemable Convertible Preferred Stock and Changes in Shareholders' Equity (Unaudited) - USD ($) $ in Thousands	Total		Series B Redeemable Convertible Preferred Stock [Member]	Convertible Series A Preferred Stock [Member]	Common Stock [Member]	Additional Paid-In Capital [Member]	Accumulated earnings (deficit) [Member]
Beginning Balance at Dec. 31, 2014	$ 88,230				$ 2	$ 106,628	$ (18,400)
Beginning Balance, Shares at Dec. 31, 2014				1,000,000	202,343,245
Net income (loss)	(61,833)						(61,833)
Issuance of preferred stock (par value as net proceeds treated as mezzanine)			600,000
Preferred Stock Issued Shares Issued Value			$ 502,213
Redeemable convertible series B preferred stock dividends	(17,748)		(17,000)				(17,748)
Issuance of common stock under restricted stock compensation arrangement, Shares					3,824,790
Equity-based compensation	1,129					1,129
Ending Balance at Dec. 31, 2015	$ 9,778	[1]			$ 2	107,757	(97,981)
Ending Balance, Shares at Dec. 31, 2015				1,000,000	206,168,035
Preferred Stock Value, Ending Balance at Dec. 31, 2015			$ 502,213
Preferred Stock Ending Balance ,Shares at Dec. 31, 2015	600,000		600,000
Net income (loss)	$ 77,959						77,959
Redeemable convertible series B preferred stock dividends	(9,000)		$ (9,000)				(9,000)
Issuance of common stock under restricted stock compensation arrangement, Shares					212,765
Equity-based compensation	309					309
Ending Balance at Jun. 30, 2016	$ 79,046				$ 2	$ 108,066	$ (29,022)
Ending Balance, Shares at Jun. 30, 2016				1,000,000	206,380,800
Preferred Stock Value, Ending Balance at Jun. 30, 2016			$ 502,213
Preferred Stock Ending Balance ,Shares at Jun. 30, 2016	600,000		600,000

[1] Balances derived from audited financial statements as of December 31, 2015.