EARNINGS PER SHARE (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Basic earnings per share:
Net income	$ 55,824	$ 41,881	$ 102,072	$ 81,679
Weighted-average common shares	57,731	60,544	58,480	60,366
Basic earnings per share	$ 0.97	$ 0.69	$ 1.75	$ 1.35
Diluted earnings per share:
Net income	$ 55,824	$ 41,881	$ 102,072	$ 81,679
Weighted-average common shares	57,731	60,544	58,480	60,366
Effect of dilutive awards:
Employee stock plans	574	922	712	1,115
Diluted weighted-average common shares	58,305	61,466	59,192	61,481
Diluted earnings per share	$ 0.96	$ 0.68	$ 1.72	$ 1.33
Stock awards excluded in the computation of diluted earnings per share	0	100	0	0