Summary Of Significant Accounting Policies Change in Accounting Estimate (Details) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
	Oct. 29, 2016	Oct. 29, 2016
Change in Accounting Estimate [Line Items]
Change in Accounting Estimate, Description		To the extent that the actual forfeitures differ from the estimated forfeitures, the Company records the difference in the period that the awards vest. The Company estimates the forward-looking forfeiture rate, using the Company’s historical forfeiture rates, annually during the second fiscal quarter, and whenever events occur or facts and circumstances indicate that the current forfeiture rate estimate is significantly different from historical forfeitures. Changes in the estimated forfeiture rates and differences between the estimated forfeiture rates and actual forfeiture rates may result in significant increases or decreases in stock-based compensation expense from period to period
Sales Returns and Allowances [Member]
Change in Accounting Estimate [Line Items]
Change in Accounting Estimate, Description	The Company initiated a project to enhance the capture of distributor point of sale (“POS”) data in fiscal year 2014. This project resulted in the Company being able to associate specific rebates reflected in the distributor POS data to specific sales quotes maintained in the Company’s quoting system. Therefore, beginning in the fourth quarter of the fiscal year ended October 29, 2016, the historical distributor rebates and matching sales reflected in the Company’s historical dataset grew to reach approximately two years. Since the distributors must claim rebates within 180 days from their receipt of the related product, two years was deemed sufficient for purposes of making reliable estimates of ultimate rebate claims. Accordingly, beginning in the fourth quarter of the fiscal year ended October 29, 2016, revenue from sales to distributor customers is recognized upon shipment to the distributor (sell-in) and is reduced by allowances for rebates, sales program incentives, and stock rotations, which are all estimated by a process using both historical experience and expectations of future outcomes based on facts and circumstances available contemporaneously at the date of estimation.
Change in Accounting Estimate, Financial Effect on Revenue		$ 14.4
Change in Accounting Estimate, Financial Effect on COGS		$ 4.0