Segment Information - Net Sales Activity by Geographic Region (Details)	3 Months Ended		9 Months Ended
	Oct. 27, 2019	Oct. 28, 2018	Oct. 27, 2019	Oct. 28, 2018
Other: Warrant Shares
Revenues from External Customers and Long-Lived Assets [Line Items]
Concentration risk, percentage	0.00%	0.00%	0.00%	(7.00%)
Net sales
Revenues from External Customers and Long-Lived Assets [Line Items]
Concentration risk, percentage	100.00%	100.00%	100.00%	100.00%
Net sales | Asia-Pacific
Revenues from External Customers and Long-Lived Assets [Line Items]
Concentration risk, percentage	75.00%	77.00%	76.00%	74.00%
Net sales | North America
Revenues from External Customers and Long-Lived Assets [Line Items]
Concentration risk, percentage	16.00%	16.00%	15.00%	26.00%
Net sales | Europe
Revenues from External Customers and Long-Lived Assets [Line Items]
Concentration risk, percentage	9.00%	7.00%	9.00%	7.00%