Segment Information - Summary of Sales Activity to Countries that Represented Greater than 10% of Total Net Sales (Details) - Sales Revenue, Goods, Net [Member]	3 Months Ended		9 Months Ended
	Oct. 25, 2015	Oct. 26, 2014	Oct. 25, 2015	Oct. 26, 2014
Revenues from External Customers and Long-Lived Assets [Line Items]
Minimum concentration risk threshold	10.00%
Concentration risk, percentage	100.00%	100.00%	100.00%	100.00%
Geographic Concentration Risk [Member] | China Including Hong Kong [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Concentration risk, percentage	45.00%	41.00%	44.00%	37.00%
Geographic Concentration Risk [Member] | United States
Revenues from External Customers and Long-Lived Assets [Line Items]
Concentration risk, percentage	14.00%	10.00%	12.00%	12.00%
Geographic Concentration Risk [Member] | Japan
Revenues from External Customers and Long-Lived Assets [Line Items]
Concentration risk, percentage	9.00%	10.00%	9.00%	11.00%