Revenue Recognition - Revenue Disaggregated by Products and Services (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 28, 2020	Jun. 30, 2019	Jun. 28, 2020	Jun. 30, 2019
Revenue from External Customer [Line Items]
Revenue	$ 169,097	$ 199,047	$ 336,332	$ 372,531
Standard Products and Services
Revenue from External Customer [Line Items]
Revenue	158,807	173,368	311,662	334,420
Application-Specific Customer Solutions
Revenue from External Customer [Line Items]
Revenue	$ 10,290	$ 25,679	$ 24,670	$ 38,111

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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+ Details