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Segment Geographic and Significant Customer Information - Schedule of Net Accounts Receivable from Significant Customers (Detail) - Accounts Receivable - Credit Concentration Risk
12 Months Ended
Apr. 24, 2020
Apr. 26, 2019
Arrow Electronics, Inc.    
Segment Reporting Information [Line Items]    
Percentage of net accounts receivable 13.00% 11.00%
Tech Data Corporation    
Segment Reporting Information [Line Items]    
Percentage of net accounts receivable 19.00% 24.00%