EARNINGS PER SHARE - Reconciliation of Basic and Diluted Earnings Per Share Computations (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Numerator for basic and diluted earnings per share:
Net income, basic	$ 135,799	$ 65,443	$ 329,270	$ 154,254
Net income, diluted	$ 135,799	$ 65,443	$ 329,270	$ 154,254
Denominator:
Weighted-average basic shares outstanding (in shares)	54,111	54,411	54,278	54,553
Dilutive effect of outstanding stock awards (in shares)	270	296	264	309
Dilutive shares outstanding (in shares)	54,381	54,707	54,542	54,862
Basic earnings per share (in dollars per share)	$ 2.51	$ 1.20	$ 6.07	$ 2.83
Diluted earnings per share (in dollars per share)	$ 2.50	$ 1.20	$ 6.04	$ 2.81