EARNINGS (LOSS) PER SHARE (Details) - USD ($) $ / shares in Units, $ in Thousands	1 Months Ended	2 Months Ended	3 Months Ended			5 Months Ended	6 Months Ended
	Jun. 30, 2021	May 17, 2021	Mar. 31, 2021	Jun. 30, 2020	Mar. 31, 2020	May 17, 2021	Jun. 30, 2020
Basic
Net (loss) income	$ (209,586)	$ 242,214	$ 8,780	$ (561,068)	$ (517,538)	$ 250,996	$ (1,078,606)
Dividends on New Preferred Stock	(1,031)	0		0		0	0
Participating securities - New Preferred Stock	0	0		0		0	0
Net (loss) income attributable to common stockholders, basic	(210,617)	242,214		(561,068)		250,996	(1,078,606)
Net (loss) income attributable to common stockholders, diluted	$ (210,617)	$ 242,214		$ (561,068)		$ 250,996	$ (1,078,606)
Basic Shares (in shares)	20,321,000	160,887,000		159,934,000		160,834,000	159,847,000
Basic EPS (in usd per share)	$ (10.36)	$ 1.51		$ (3.51)		$ 1.56	$ (6.75)
Dilutive EPS (in usd per share)	$ (10.36)	$ 1.51		$ (3.51)		$ 1.56	$ (6.75)
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Anti-dilutive shares (in shares)	0	0				0
Restricted Stock
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Anti-dilutive shares (in shares)				1,300,000			1,600,000
Series A Convertible Preferred Stock
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Anti-dilutive shares (in shares)	4,000,000.0