BASIS OF PRESENTATION AND SIGNIFICANT ACCOUNTING POLICIES - Reconciliation of EPS (Details) - USD ($) $ / shares in Units, $ in Thousands		3 Months Ended
		Mar. 31, 2021	Mar. 31, 2020
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Net Income (Loss)		$ (90,357)	$ 368,286
Less: Cumulative Dividends on Preferred Stock		(3,830)	(3,729)
Net Income (Loss) Attributable to Common Stockholders		$ (94,188)	$ 364,557
Weighted Average Common Shares Outstanding:
Weighted Average Shares Outstanding - Basic (in shares)	[1]	54,538,099	40,366,253
Plus: Dilutive Effect of Restricted Stock (in shares)		0	35,470
Plus: Dilutive Effect of Preferred Shares (in shares)		0	9,319,541
Weighted Average Common Shares Outstanding – Diluted (in shares)	[1]	54,538,099	49,721,264
Net Income (Loss) per Common Share:
Basic (in dollars per share)	[1]	$ (1.73)	$ 9.03
Diluted (in dollars per share)	[1]	$ (1.73)	$ 7.33
Restricted Stock
Net Income (Loss) per Common Share:
Shares underlying Restricted Stock Awards Excluded from EPS Due to Anti-Dilutive Effect (in shares)		120,039	143,818
Preferred Stock
Net Income (Loss) per Common Share:
Shares underlying Restricted Stock Awards Excluded from EPS Due to Anti-Dilutive Effect (in shares)		9,881,580	0

[1] Adjusted for the 1-for-10 reverse stock split.