NET INCOME PER SHARE (Basic and Diluted Net Income Per Share) (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Basic net income per share:
Net income	$ 169,075	$ 133,892	$ 50,201
Weighted average common shares outstanding - Basic (in shares)	84,698	84,650	85,637
Basic net income per common share (in dollars per share)	$ 2.00	$ 1.58	$ 0.59
Diluted net income per share:
Net income	$ 169,075	$ 133,892	$ 50,201
Weighted average common shares outstanding - Basic (in shares)	84,698	84,650	85,637
Effect of dilutive securities:
Stock options and restricted stock (in shares)	787	577	857
Weighted average common shares for diluted earnings per share (in shares)	85,485	85,228	86,494
Diluted net income per common share (in dollars per share)	$ 1.98	$ 1.57	$ 0.58