Additional Income Taxes.

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- Definition

Excess Tax Benefit of Stock-Based Compensation, Component of Provision for Income Taxes

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- Definition

Valuation Allowance, Deferred Tax Asset, Change in Amount Inputs, Percent of Revenue Recurring In Nature, Previous Four Years

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No definition available.

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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://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (b),(c)
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Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
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-SubTopic 10
-Section 50
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- Definition

Percentage of domestic federal statutory tax rate applicable to pretax income (loss).

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Amount of decrease in unrecognized tax benefits resulting from settlements with taxing authorities.

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Income Taxes (Details Textual) - USD ($) $ in Thousands	12 Months Ended
Income Taxes (Details Textual) - USD ($) $ in Thousands	Dec. 29, 2018	Dec. 30, 2017	Dec. 31, 2016	Jan. 02, 2016
Additional Income Taxes (Textual) [Abstract]
United States statutory federal income tax rate		35.00%
Excess tax benefits recognized in the provision for income taxes resulting form the adoption of new accounting standard		$ 32,000	$ 17,200
Net deferred tax assets		$ 215,028	316,799
Percent of revenue recurring in nature, over multiple years		90.00%
Valuation allowance		$ (95,491)	(92,920)
Amount of decreases in unrecognized tax benefits relating to settlements with taxing authorities, including the utilization of tax attributes		$ 0	$ 0	$ 9,571
Scenario, Forecast [Member]
Additional Income Taxes (Textual) [Abstract]
United States statutory federal income tax rate	21.00%