EARNINGS PER SHARE (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Numerator:
Net Income	$ 137,331	$ 127,823	$ 259,262	$ 253,853
Denominator (shares in 000's):
Basic weighted average shares outstanding (in shares)	57,479,000	58,016,000	57,537,000	58,311,000
Effect of dilutive securities - Stock options and awards (in shares)	824,000	672,000	816,000	659,000
Diluted weighted average shares outstanding (in shares)	58,303,000	58,688,000	58,353,000	58,970,000
Basic earnings per share (in dollars per share)	$ 2.39	$ 2.20	$ 4.51	$ 4.35
Diluted earnings per share (in dollars per share)	$ 2.36	$ 2.18	$ 4.44	$ 4.30
Anti-dilutive shares excluded from the computation of diluted earnings per share	76	62,987	115	108,497