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Income Taxes (Details 4) $ in Thousands | Dec. 29, 2018 USD ($)
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United States federal [Member] |  |
Operating Loss Carryforwards [Line Items] |  |
Operating loss carry forwards | $ 1,374 |
Tax credit carryforward | 108,934 | [1]
California State [Member] |  |
Operating Loss Carryforwards [Line Items] |  |
Operating loss carry forwards | 175,541 |
Tax credit carryforward | 61,473 |
States other than California [Member] |  |
Operating Loss Carryforwards [Line Items] |  |
Operating loss carry forwards | 2,333 |
Tax credit carryforward | 10,445 |
Foreign Tax Authority [Member] |  |
Operating Loss Carryforwards [Line Items] |  |
Operating loss carry forwards | 293 |
Tax credit carryforward | $ 16,672 |
[1] | Certain of Cadence’s foreign tax credits have yet to be realized and as a result do not yet have an expiration period.

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- Definition The amount of the tax credit 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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