EARNINGS PER SHARE - Calculation of Basic and Diluted Weighted Average Shares Outstanding and Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	1 Months Ended	2 Months Ended	3 Months Ended	12 Months Ended
	Mar. 31, 2017	Feb. 28, 2017	Mar. 31, 2016	Dec. 31, 2016
Basic:
Net income (loss)	$ (259,613)
Net income attributable to participating securities	0
Net income (loss) attributable to common stock - basic	(259,613)
Diluted:
Net income (loss)	(259,613)
Net income attributable to participating securities	0
Net income (loss) attributable to common stock - diluted	$ (259,613)
Weighted average shares (denominator):
Weighted average shares - basic (in shares)	19,997
Dilutive effect of convertible notes (in shares)	0
Weighted average shares - diluted (in shares)	19,997
Basic income (loss) per share (in usd per share)	$ (12.98)
Diluted income (loss) per share (in usd per share)	$ (12.98)
Employee Stock Option
Weighted average shares (denominator):
Dilutive effect of stock options (in shares)	0
Warrant
Weighted average shares (denominator):
Dilutive effect of stock options (in shares)	0
Restricted Stock
Weighted average shares (denominator):
Dilutive effect of stock options (in shares)	0
Predecessor
Basic:
Net income (loss)		$ 630,317	$ (188,784)	$ (590,586)
Net income attributable to participating securities		(4,995)	0
Net income (loss) attributable to common stock - basic		625,322	(188,784)
Diluted:
Net income (loss)		630,317	(188,784)	$ (590,586)
Net income attributable to participating securities		(4,995)	0
Net income (loss) attributable to common stock - diluted		$ 625,322	$ (188,784)
Weighted average shares (denominator):
Weighted average shares - basic (in shares)		5,634	5,571
Dilutive effect of convertible notes (in shares)		0	0
Weighted average shares - diluted (in shares)		5,634	5,571
Basic income (loss) per share (in usd per share)		$ 110.99	$ (33.89)
Diluted income (loss) per share (in usd per share)		$ 110.99	$ (33.89)
Predecessor | Employee Stock Option
Weighted average shares (denominator):
Dilutive effect of stock options (in shares)		0	0
Predecessor | Warrant
Weighted average shares (denominator):
Dilutive effect of stock options (in shares)		0	0
Predecessor | Restricted Stock
Weighted average shares (denominator):
Dilutive effect of stock options (in shares)		0	0