EARNINGS PER SHARE - Basic and Diluted Net Income Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jul. 01, 2022	Jun. 30, 2023	Jul. 01, 2022
Numerator:
Net income	$ 1,555	$ 14,840	$ 6,648	$ 13,311
Denominator:
Basic (in shares)	111,462	104,630	111,130	104,312
Diluted (in shares)	119,255	108,984	118,508	109,774
Net income per share:
Basic (in dollars per share)	$ 0.01	$ 0.14	$ 0.06	$ 0.13
Diluted (in dollars per share)	$ 0.01	$ 0.14	$ 0.06	$ 0.12
Stock options
Denominator:
Weighted average number diluted shares outstanding adjustment (in shares)	0	234	0	249
Restricted stock units
Denominator:
Weighted average number diluted shares outstanding adjustment (in shares)	1,573	1,193	1,786	1,627
Stock purchase rights under the ESPP
Denominator:
Weighted average number diluted shares outstanding adjustment (in shares)	76	71	38	35
2022 Notes
Denominator:
Weighted average number diluted shares outstanding adjustment (in shares)	0	2,365	0	2,537
2024 Notes
Denominator:
Weighted average number diluted shares outstanding adjustment (in shares)	6,144	491	5,554	1,014