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Income Taxes - Operating Loss and Tax Credit Carryforwards (Details) $ in Millions | 12 Months Ended
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Dec. 29, 2018 USD ($)
Operating loss and tax credit carryforwards |
Undistributed earnings of foreign subsidiaries | $ 105.0
Provision for foreign withholding tax and state income taxes | 0.0
State |
Operating loss and tax credit carryforwards |
Operating loss carryforwards | 43.8
State | Tentative minimum tax credit |
Operating loss and tax credit carryforwards |
Tax credit carryforwards | 0.1
State | Research and development tax credit |
Operating loss and tax credit carryforwards |
Tax credit carryforwards | 13.5
Silicon Clocks, Spectra Linear and Ember | Federal |
Operating loss and tax credit carryforwards |
Operating loss carryforwards | 32.7
Tax credit carryforwards | 1.9
Energy Micro | Foreign |
Operating loss and tax credit carryforwards |
Operating loss carryforwards | $ 1.9

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- Definition Amount of operating loss carryforward, before tax effects, available to reduce future taxable income under enacted tax laws. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32559-109319 + Details
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