Summary of Significant Accounting Policies (Schedule of Depreciation using Estimated Useful Lives) (Detail)	12 Months Ended
	Jan. 03, 2020
Computers and other equipment | Minimum
Property, Plant and Equipment [Line Items]
Estimated useful lives (in years)	2 years
Computers and other equipment | Maximum
Property, Plant and Equipment [Line Items]
Estimated useful lives (in years)	10 years
Buildings | Maximum
Property, Plant and Equipment [Line Items]
Estimated useful lives (in years)	40 years
Office furniture and fixtures | Minimum
Property, Plant and Equipment [Line Items]
Estimated useful lives (in years)	6 years
Office furniture and fixtures | Maximum
Property, Plant and Equipment [Line Items]
Estimated useful lives (in years)	9 years