Income Taxes - Reconciliation of Effective Income Tax Rate (Details)	12 Months Ended
Dec. 28, 2019	Dec. 29, 2018	Dec. 30, 2017
Income Tax Disclosure [Abstract]
Statutory federal rate	21.00%	21.00%	35.00%
Adjustments for tax effects of:
State taxes, net	3.00%	6.00%	7.00%
Research and development credits	3.00%	5.00%	1.00%
Stock compensation	(11.00%)	(8.00%)	(3.00%)
Foreign rate differential	(2.00%)	(20.00%)	(28.00%)
Foreign dividends		0.00%	(1.00%)
Foreign withholding taxes	3.00%	(5.00%)	0.00%
Other permanent	6.00%	(2.00%)	0.00%
Other deferred tax asset adjustment		(13.00%)	0.00%
Valuation allowance	(19.00%)	11.00%	73.00%
Change in uncertain tax benefit accrual	0.00%	(2.00%)	(1.00%)
Stock compensation (ASU 2016-09) adoption	0.00%	0.00%	8.00%
Tax rate change	0.00%	0.00%	(93.00%)
Other	0.00%	(3.00%)	1.00%
Effective income tax rate	4.00%	(10.00%)	(1.00%)

Effective Income Tax Rate Reconciliation, Foreign Withholding Taxes, Percent

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Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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

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Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations applicable to state and local income tax expense (benefit), net of federal tax expense (benefit).

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Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to income tax contingencies. Includes, but not limited to, domestic tax contingency, foreign tax contingency, state and local tax contingency, and other contingencies.

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