Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

No definition available.

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For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

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- Definition

Long-lived assets other than financial instruments, long-term customer relationships of a financial institution, mortgage and other servicing rights, deferred policy acquisition costs, and deferred tax assets.

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- Definition

Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

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Significant Customer Information and Other Information (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
	Jul. 04, 2020	Jun. 29, 2019	Jul. 04, 2020	Jun. 29, 2019	Dec. 31, 2019
Concentration Risk [Line Items]
Revenue	$ 261,272	$ 313,556	$ 449,430	$ 585,446
Geographic Concentration Risk \| Located outside the United States
Concentration Risk [Line Items]
Long-lived assets including property and equipment	$ 28,900		$ 28,900		$ 27,900
Revenue \| Customer Concentration Risk \| Customer C
Concentration Risk [Line Items]
Concentration risk, percentage	13.00%	11.00%	12.00%
Revenue \| Geographic Concentration Risk \| United States
Concentration Risk [Line Items]
Revenue	$ 164,729	$ 180,862	$ 266,768	315,953
Revenue \| Geographic Concentration Risk \| Americas excluding United States
Concentration Risk [Line Items]
Revenue	10,455	19,178	21,198	34,505
Revenue \| Geographic Concentration Risk \| Europe, Middle East, and Africa
Concentration Risk [Line Items]
Revenue	72,375	87,563	129,381	174,661
Revenue \| Geographic Concentration Risk \| Asia Pacific
Concentration Risk [Line Items]
Revenue	$ 13,713	$ 25,953	$ 32,083	$ 60,327
Accounts Receivable \| Customer Concentration Risk \| Customer C
Concentration Risk [Line Items]
Concentration risk, percentage			17.00%		18.00%
Accounts Receivable \| Customer Concentration Risk \| Customer D
Concentration Risk [Line Items]
Concentration risk, percentage					11.00%
Accounts Receivable \| Customer Concentration Risk \| Customer E
Concentration Risk [Line Items]
Concentration risk, percentage					10.00%