NET INCOME LOSS PER SHARE Income & Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Condensed Income Statements, Captions [Line Items]
Net Income (Loss) Attributable to Parent	$ 23,391	$ (30,938)	$ 43,414	$ (94,863)
Gain (Loss) On Repurchase Of Crypocurrencies	0	0	0	(425)
Preferred Stock Dividends, Income Statement Impact	179	837	376	875
Net Income (Loss) Available To Common Stockholders, Before Undistributed Earnings (Loss) Allocated To Participating Securities, Basic	23,212	(31,775)	43,038	(95,313)
Undistributed Earnings (Loss) Allocated to Participating Securities, Basic	2,293	(428)	2,482	(1,319)
Net Income (Loss) Available to Common Stockholders, Basic	$ 20,919	$ (31,347)	$ 40,556	$ (93,994)
Weighted Average Number of Shares Outstanding, Basic	41,595	35,241	40,697	34,289
Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements	607	0	333	0
Weighted Average Number of Shares Outstanding, Diluted	42,202	35,241	41,030	34,289
Earnings Per Share, Basic	$ 0.50	$ (0.89)	$ 1.00	$ (2.74)
Earnings Per Share, Diluted	$ 0.50	$ (0.89)	$ 0.99	$ (2.74)