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Income Taxes - Tax Credits and Carryforwards (Details) $ in Thousands | Dec. 26, 2020 USD ($)
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California |
Operating Loss Carryforwards [Line Items] |
California research credits | $ 42,615
Singapore |
Operating Loss Carryforwards [Line Items] |
Singapore net operating loss carryforwards | 7,046
Federal |
Operating Loss Carryforwards [Line Items] |
Federal research and development tax credit | 36,579
Foreign tax credit carryforwards | 1,059
State |
Operating Loss Carryforwards [Line Items] |
Net operating loss carryforwards | $ 247,990

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