Balance Sheet Components - Prepaid Expenses and Other Current Assets (Details) - USD ($) $ in Thousands		Oct. 03, 2021	Jan. 03, 2021
Balance Sheet Related Disclosures [Abstract]
Deferred project costs		$ 38,391	$ 26,996
VAT receivables, current portion		973	1,174
Deferred costs for solar power systems		19,869	24,526
Prepaid taxes		107	205
Related party receivables		4,955	9,891
Other		29,086	31,459
Prepaid expenses and other current assets	[1]	$ 93,381	$ 94,251

[1] We have related-party balances for transactions made with TotalEnergies SE and its affiliates, Maxeon Solar Technologies, Ltd. ("Maxeon Solar"), and unconsolidated entities in which we have a direct equity investment. These related-party balances are recorded within the "accounts receivable, net," "contract assets," "prepaid expenses and other current assets," "other long-term assets," "accounts payable," "accrued liabilities," "contract liabilities, current portion," "convertible debt, net of current portion," "contract liabilities, net of current portion," and "other long-term liabilities" financial statement line items on our unaudited condensed consolidated balance sheets (see Note 2, Note 8, Note 9, Note 10, and Note 11)