EARNINGS PER SHARE (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended				6 Months Ended
	Jun. 30, 2022	Mar. 31, 2022	Jun. 30, 2021	Mar. 31, 2021	Jun. 30, 2022	Jun. 30, 2021
Basic EPS Calculation
Net income available for common stock	$ 32,075	$ 98,934	$ 30,093	$ 95,575	$ 131,009	$ 125,668
Weighted Average Number of Shares Outstanding, Basic	54,262		53,466		54,092	53,419
Earnings Per Share, Basic	$ 0.59		$ 0.56		$ 2.42	$ 2.35
Diluted EPS Calculation
Net Income (Loss) Available to Common Stockholders, Diluted	$ 32,075		$ 30,093		$ 131,009	$ 125,668
Effect of dilutive securities on shares	73		82		91	112
Weighted Average Number of Shares Outstanding, Diluted	54,335		53,548		54,183	53,531
Earnings Per Share, Diluted	$ 0.59		$ 0.56		$ 2.42	$ 2.35