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	10 Months Ended
	Mar. 31, 2017	Feb. 28, 2017	Mar. 31, 2018	Dec. 31, 2017
Basic:
Net income (loss)	$ (259,613)		$ 18,308	$ (247,639)
Net income attributable to participating securities	0		(57)
Net income (loss) attributable to common stock - basic	(259,613)		18,251
Diluted:
Net income (loss)	(259,613)		18,308	$ (247,639)
Net income attributable to participating securities	0		(56)
Net income (loss) attributable to common stock - diluted	$ (259,613)		$ 18,252
Weighted average shares (denominator):
Weighted average shares - basic (in shares)	19,997		19,998
Dilutive effect of convertible notes (in shares)	0		0
Weighted average shares - diluted (in shares)	19,997		19,998
Basic income (loss) per share (in usd per share)	$ (12.98)		$ 0.91
Diluted income (loss) per share (in usd per share)	$ (12.98)		$ 0.91
Employee Stock Option
Weighted average shares (denominator):
Dilutive effect of stock options, warrants, and restricted stock units (in shares)	0		0
Warrants
Weighted average shares (denominator):
Dilutive effect of stock options, warrants, and restricted stock units (in shares)	0		0
Predecessor
Basic:
Net income (loss)		$ 630,317
Net income attributable to participating securities		(4,995)
Net income (loss) attributable to common stock - basic		625,322
Diluted:
Net income (loss)		630,317
Net income attributable to participating securities		(4,995)
Net income (loss) attributable to common stock - diluted		$ 625,322
Weighted average shares (denominator):
Weighted average shares - basic (in shares)		5,634
Dilutive effect of convertible notes (in shares)		0
Weighted average shares - diluted (in shares)		5,634
Basic income (loss) per share (in usd per share)		$ 110.99
Diluted income (loss) per share (in usd per share)		$ 110.99
Predecessor | Employee Stock Option
Weighted average shares (denominator):
Dilutive effect of stock options, warrants, and restricted stock units (in shares)		0
Predecessor | Warrants
Weighted average shares (denominator):
Dilutive effect of stock options, warrants, and restricted stock units (in shares)		0