EARNINGS PER SHARE (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Numerator:
Net income	$ 109,225	$ 31,757	$ 363,078	$ 202,039
Denominator (shares in 000's):
Basic weighted average shares outstanding (in shares)	57,823,000	59,289,000	58,148,000	59,465,000
Effect of dilutive securities - Stock options and awards (in shares)	703,000	766,000	667,000	703,000
Diluted weighted average shares outstanding (in shares)	58,526,000	60,055,000	58,815,000	60,168,000
Basic earnings per share (in dollars per share)	$ 1.89	$ 0.54	$ 6.24	$ 3.40
Diluted earnings per share (in dollars per share)	$ 1.87	$ 0.53	$ 6.17	$ 3.36
Anti-dilutive shares excluded from the computation of diluted earnings per share	52,495	2,126	120,106	150,254