EARNINGS PER SHARE (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Numerator:
Net income	$ 545,248	$ 472,224	$ 276,580
Denominator (shares in 000's):
Basic weighted average shares outstanding (in shares)	57,364	58,030	59,309
Effect of dilutive securities - Stock options and awards (in shares)	857	719	753
Diluted weighted average shares outstanding (in shares)	58,221	58,749	60,062
Basic earnings per share (in dollars per share)	$ 9.50	$ 8.14	$ 4.66
Diluted earnings per share (in dollars per share)	$ 9.37	$ 8.04	$ 4.60
Anti-dilutive shares excluded from the computation of diluted earnings per share	69,901	127,358	2,949