EARNINGS PER SHARE (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Numerator:
Net income	$ 101,708	$ 137,331	$ 225,123	$ 259,262
Denominator (shares in 000's):
Basic weighted average shares outstanding (in shares)	56,816,000	57,479,000	56,841,000	57,537,000
Effect of dilutive securities - Stock options and awards (in shares)	550,000	824,000	664,000	816,000
Diluted weighted average shares outstanding (in shares)	57,366,000	58,303,000	57,505,000	58,353,000
Basic earnings per share (in dollars per share)	$ 1.79	$ 2.39	$ 3.96	$ 4.51
Diluted earnings per share (in dollars per share)	$ 1.77	$ 2.36	$ 3.91	$ 4.44
Anti-dilutive shares excluded from the computation of diluted earnings per share	25,472	76	18,008	115