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Transactions With Total and Total Energies SE - Revenue from Related Parties (Details) - Total - Related-Party Transactions with Total and its Affiliates - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 04, 2021	Jun. 28, 2020	Jul. 04, 2021	Jun. 28, 2020
Revenue:
Related Party Transaction [Line Items]
Solar power systems, components, and other	$ 22,272	$ 34,533	$ 37,377	$ 63,779
Cost of revenue:
Related Party Transaction [Line Items]
Solar power systems, components, and other	19,456	16,475	31,817	44,324
Other income:
Related Party Transaction [Line Items]
Gain on early retirement of convertible debt	0	0	0	1,850
Interest expense: \| 0.875% debentures due 2021
Related Party Transaction [Line Items]
Interest expense	0	428	0	832
Interest expense: \| 4.00% debentures due 2023
Related Party Transaction [Line Items]
Interest expense	1,000	1,000	2,000	2,000
Interest expense: \| Credit Support Agreement
Related Party Transaction [Line Items]
Interest expense	$ 0	$ 0	$ 0	$ 13