EARNINGS PER SHARE - Antidilutive Securities (Details) - shares shares in Thousands	3 Months Ended		6 Months Ended
	Jul. 01, 2022	Jul. 02, 2021	Jul. 01, 2022	Jul. 02, 2021
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Potential weighted common shares outstanding excluded from diluted net loss per share (in shares)	446	5,849	457	6,002
2022 Notes
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Potential weighted common shares outstanding excluded from diluted net loss per share (in shares)	0	1,645	0	1,720
Stock options
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Potential weighted common shares outstanding excluded from diluted net loss per share (in shares)	0	839	0	1,015
Restricted stock units
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Potential weighted common shares outstanding excluded from diluted net loss per share (in shares)	48	2,961	53	2,895
Stock purchase rights under the ESPP
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Potential weighted common shares outstanding excluded from diluted net loss per share (in shares)	398	404	404	372