EARNINGS PER SHARE (Details) $ / shares in Units, shares in Thousands, $ in Thousands		3 Months Ended
	Aug. 18, 2020	Mar. 31, 2021 USD ($) $ / shares shares	Mar. 31, 2020 USD ($) $ / shares shares
Basic earnings per share:
Net income | $		$ 39,798	$ 15,886
Weighted-average common shares		60,184	59,204
Basic earnings per share | $ / shares		$ 0.66	$ 0.27
Diluted earnings per share:
Net income | $		$ 39,798	$ 15,886
Weighted-average common shares		60,184	59,204
Effect of dilutive awards:
Employee stock plans		1,267	1,064
Diluted weighted-average common shares		61,451	60,268
Diluted earnings per share | $ / shares		$ 0.65	$ 0.26
Stock awards excluded in the computation of diluted earnings per share		0	0
Stock split ratio	2