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QUARTERLY SUPPLEMENTAL FINANCIAL DATA (UNAUDITED) (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Quarterly Financial Information Disclosure [Abstract]
Revenues	$ 553,525	$ 428,867	$ 405,177
Net Income (Loss) Attributable to Parent	$ 184,213	$ 133,372	$ 138,304
Net income per common share:
Basic	$ 3.87	$ 2.80	$ 2.92
Diluted	$ 3.87	$ 2.80	$ 2.92

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