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
	Mar. 31, 2022	Mar. 31, 2021
Numerator for basic and diluted earnings per share:
Net income	$ 45,314	$ 21,736
Net income	$ 45,314	$ 21,736
Denominator:
Weighted-average basic shares outstanding (in shares)	54,408	54,723
Dilutive effect of outstanding stock awards (in shares)	264	320
Dilutive shares outstanding (in shares)	54,672	55,043
Basic earnings per share (in dollars per share)	$ 0.83	$ 0.40
Diluted earnings per share (in dollars per share)	$ 0.83	$ 0.39