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Income Taxes - Summary of Differences Between U.S. Federal Statutory Tax Rate and Company's Consolidated Effective Tax Rate (Detail)	12 Months Ended
	Dec. 29, 2018	Dec. 30, 2017	Dec. 31, 2016
Income Tax Disclosure [Abstract]
U.S. federal statutory tax rate	21.00%	35.00%	35.00%
State income taxes (net of federal benefit)	1.10%	2.50%	2.00%
Cessation of operations	(0.80%)	(8.00%)	0.00%
Research and development credit	(0.50%)	(1.30%)	(19.50%)
Tax windfall on share-based awards	(8.60%)	(1.10%)	0.00%
Reserves for uncertain tax positions	(1.40%)	(0.20%)	2.90%
Tax rate changes	0.30%	(49.60%)	0.00%
(Decrease) increase in valuation adjustment related to foreign tax credits	(3.50%)	3.50%	(2.30%)
GILTI	1.50%	0.00%	0.00%
FDII	(1.90%)	0.00%	0.00%
(Decrease) increase in valuation allowance due to net operating loss	(0.70%)	3.00%	0.00%
Goodwill impairment	0.00%	3.20%	0.00%
Tax return adjustments related to 2017 Tax Act	(1.10%)	0.00%	0.00%
Impact of foreign operations	3.20%	(0.70%)	0.00%
Out-of-period adjustments	0.00%	0.00%	2.60%
Other	(0.20%)	1.10%	(0.90%)
Total effective tax rate	8.40%	(12.60%)	19.80%

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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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