EARNINGS PER SHARE - Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Apr. 03, 2021	Mar. 28, 2020
Reconciliation of shares for basic and diluted net income per share
Net income	$ 30,523	$ 8,480
Weighted-average common shares outstanding—basic	87,179	86,830
Effect of dilutive securities (in shares)	1,293	631
Weighted-average common shares outstanding—diluted	88,472	87,461
Earnings per share
Basic (in dollars per share)	$ 0.35	$ 0.10
Diluted (in dollars per share)	$ 0.35	$ 0.10