Organization And Summary Of Significant Accounting Policies (Details) - USD ($)	3 Months Ended
	Mar. 29, 2020		Dec. 29, 2019
Line of Credit Facility [Line Items]
Accounts receivable, net	$ 243,476,000	[1]	$ 226,476,000
Receivables, Net, Current	243,500,000
Allowance for credit loss	$ 22,484,000		$ 19,975,000
Aging analysis base	83.00%
Revolving Credit Facility
Line of Credit Facility [Line Items]
Line of credit facility, maximum borrowing capacity	$ 55,000,000.0

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