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Income Taxes - 2020 Tax Law Updates (Details) - USD ($) |  |  | 12 Months Ended
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Jun. 29, 2020 | Mar. 27, 2020 | Dec. 31, 2020
Effective tax rate of provision for income taxes difference from federal statutory rate |  |  |
Net Operating Loss Carryback |  | 5 years |
Deduction of Taxable Income, Percentage |  | 80.00% |
Amount of income limit for California Net Operating Loss deductions | $ 1,000,000 |  |
Amount of California tax offset for business credit | $ 5,000,000 |  |
Australian |  |  |
Effective tax rate of provision for income taxes difference from federal statutory rate |  |  |
Foreign income tax benefit |  |  | $ 0

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- Definition Amount of current and deferred foreign income tax expense (benefit) attributable to income (loss) from continuing operations. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(h)(1)) -URI http://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690 + Details
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