BASIS OF PRESENTATION (Earnings Per Share) (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Earnings Per Share
Net income	$ 43,089	$ 52,814
Preferred dividends	(2,013)	(2,013)
Net income available to common stockholders	$ 41,076	$ 50,801
Weighted average common shares outstanding for basic earnings per share (in shares)	42,360	42,174
Assumed incremental common shares issued upon vesting of outstanding restricted stock units (in shares)	181	162
Weighted average common shares for diluted earnings per share (in shares)	42,541	42,336
Earnings per common share — basic (in dollars per share)	$ 0.97	$ 1.20
Earnings per common share — diluted (in dollars per share)	$ 0.97	$ 1.20
Number of antidilutive common stock equivalents excluded from diluted earnings per share computation (in shares)	0	25