BASIS OF PRESENTATION (Earnings Per Share) (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Earnings Per Share
Net income	$ 52,814	$ 20,040
Preferred dividends	(2,013)	0
NET INCOME AVAILABLE TO COMMON STOCKHOLDERS	$ 50,801	$ 20,040
Weighted average common shares outstanding for basic earnings per share (in shares)	42,174	36,821
Assumed incremental common shares issued upon vesting of outstanding restricted stock units (in shares)	162	75
Weighted average common shares for diluted earnings per share (in shares)	42,336	36,896
Earnings per common share — basic (in dollars per share)	$ 1.20	$ 0.54
Earnings per common share — diluted (in dollars per share)	$ 1.20	$ 0.54
Number of antidilutive common stock equivalents excluded from diluted earnings per share computation (in shares)	25	0