NET INCOME LOSS PER SHARE Income & Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Condensed Income Statements, Captions [Line Items]
Net Income (Loss) Attributable to Parent	$ 36,356	$ (24,681)	$ 20,023	$ (63,925)
Gain (Loss) On Repurchase Of Crypocurrencies	0	0	0	(425)
Preferred Stock Dividends, Income Statement Impact	179	19	198	38
Net Income (Loss) Available To Common Stockholders, Before Undistributed Earnings (Loss) Allocated To Participating Securities, Basic	36,177	(24,700)	19,825	(63,538)
Undistributed Earnings (Loss) Allocated to Participating Securities, Basic	2,039	(333)	687	(892)
Net Income (Loss) Available to Common Stockholders, Basic	$ 34,138	$ (24,367)	$ 19,138	$ (62,646)
Earnings Per Share, Basic	$ 0.85	$ (0.69)	$ 0.48	$ (1.85)
Weighted Average Number of Shares Outstanding, Basic	40,329	35,225	40,243	33,806
Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements	261	0	197	0
Weighted Average Number of Shares Outstanding, Diluted	40,590	35,225	40,440	33,806
Earnings Per Share, Diluted	$ 0.84	$ (0.69)	$ 0.47	$ (1.85)