v3.8.0.1
Significant Accounting Policies - Schedule of Net Revenue Attributable to Significant Customers (Details) - Net Revenue - Customer Concentration Risk
12 Months Ended
Feb. 03, 2018
Jan. 28, 2017
Jan. 30, 2016
Western Digital      
Concentration Risk [Line Items]      
Concentration of risk percentage 20.00% 21.00% 19.00%
Toshiba      
Concentration Risk [Line Items]      
Concentration of risk percentage 14.00% 14.00%  
Seagate      
Concentration Risk [Line Items]      
Concentration of risk percentage 11.00% 9.00% 14.00%
Wintech      
Concentration Risk [Line Items]      
Concentration of risk percentage 10.00% 10.00%