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Income Taxes (Details Textual) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2018 | Apr. 01, 2017 | Dec. 29, 2018 | Dec. 30, 2017 | Dec. 31, 2016
Additional Income Taxes (Textual) [Abstract] |  |  |  |  |
United States statutory federal income tax rate | 21.00% | 35.00% |  | 35.00% | 35.00%
Deemed repatriation transition tax |  |  | $ (1,409) | $ 67,188 | $ 0
Aggregate transition tax on foreign earnings resulting from the 2017 Tax Act |  |  | 65,800 |  |
Excess tax benefits recognized in the provision for income taxes resulting form the adoption of new accounting standard |  |  | 21,300 | 32,000 | $ 17,200
Net deferred tax assets |  |  | 220,650 | 215,028 |
Valuation allowance |  |  | $ (108,724) | $ (95,491) |

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- Definition Additional Income Taxes. + References No definition available. + Details
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- Definition Aggregate Transition Tax on Foreign Earnings, 2017 Tax Act + References No definition available. + Details
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- Definition Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) by applying the domestic federal statutory income tax rates to pretax net income from continuing operations attributable to the transition tax on the mandatory deemed repatriation of foreign earnings resulting from the 2017 Tax Act + References No definition available. + Details
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- Definition Excess Tax Benefit of Stock-Based Compensation, Component of Provision for Income Taxes + References No definition available. + Details
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- Definition Amount after allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (b),(c) -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32537-109319 + Details
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- Definition Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32537-109319 + Details
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