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Industry Segment Operations - Percentage by Customer (Details) - Sales Revenue
3 Months Ended 6 Months Ended
Apr. 26, 2020
Apr. 28, 2019
Apr. 26, 2020
Apr. 28, 2019
Entity-Wide Revenue, Major Customer [Line Items]        
Percentage of net sales 100.00% 100.00% 100.00% 100.00%
Customer Concentration Risk | Taiwan Semiconductor Manufacturing Company Limited        
Entity-Wide Revenue, Major Customer [Line Items]        
Percentage of net sales     26.00%  
Customer Concentration Risk | Samsung Electronics Co., Ltd.        
Entity-Wide Revenue, Major Customer [Line Items]        
Percentage of net sales     17.00%