Stock-Based Compensation (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 27, 2020	Sep. 29, 2019	Sep. 27, 2020	Sep. 29, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense	$ 4,454	$ 4,975	$ 13,386	$ 13,681
Maxeon Solar
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense			3,900
Incremental compensation cost	300		300
Restricted stock units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense	4,581	5,296	13,087	14,824
Change in stock-based compensation capitalized in inventory
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense	(127)	(321)	299	(1,143)
Cost of revenue
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense	968	854	2,154	1,586
Research and development
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense	38	343	575	979
Sales, general and administrative
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense	$ 3,448	$ 3,778	$ 10,657	$ 11,116