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Segment Geographic and Significant Customer Information - Significant Customers (Detail) - Net Revenue - Customer Concentration Risk
3 Months Ended 9 Months Ended
Jan. 24, 2020
Jan. 25, 2019
Jan. 24, 2020
Jan. 25, 2019
Arrow Electronics, Inc.        
Segment Reporting Information [Line Items]        
Percentage of net revenues 25.00% 25.00% 25.00% 24.00%
Tech Data Corporation        
Segment Reporting Information [Line Items]        
Percentage of net revenues 20.00% 20.00% 20.00% 19.00%