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Income Taxes (Income Tax Carry Forward) (Details) $ in Millions | Dec. 28, 2018 USD ($)
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Federal [Member] |
Operating Loss Carryforwards [Line Items] |
Net operating loss | $ 39.1
Federal [Member] | Foreign Tax Credit Carryforward [Member] |
Operating Loss Carryforwards [Line Items] |
Tax Credit | 17.0
International [Member] |
Operating Loss Carryforwards [Line Items] |
Net operating loss | 31.1
US and State [Member] | Research Tax Credit Carryforward [Member] |
Operating Loss Carryforwards [Line Items] |
Tax Credit | 3.6
State [Member] |
Operating Loss Carryforwards [Line Items] |
Net operating loss | 130.6
State [Member] | Investment Tax Credit Carryforward [Member] |
Operating Loss Carryforwards [Line Items] |
Tax Credit | $ 6.8

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