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Balance Sheet Components (Schedule of Estimated Amortization Expense Related to Intangibles) (Details) - USD ($)
$ in Thousands
Sep. 29, 2019
Dec. 31, 2018
Balance Sheet Related Disclosures [Abstract]    
2019 (remaining three months) $ 1,594  
2020 6,205  
2021 2,044  
2022 527  
2023 514  
Thereafter 815  
Net $ 11,699 $ 17,146