Annual report pursuant to Section 13 and 15(d)

Income Taxes (Details)

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Income Taxes (Details) - USD ($)
$ in Thousands
12 Months Ended
Oct. 27, 2019
Oct. 28, 2018
Oct. 29, 2017
Valuation Allowance [Line Items]      
Capital loss carryforwards   $ 12,900  
Operating loss period   3 years  
Net deferred tax assets, valuation allowance   $ 118,559 $ 134,195
Unrecognized tax benefits that would affect effective tax rate   500 1,500
Accrued interest and penalties   100 200
Reversal of reserves on uncertain tax provisions   $ 1,100 $ 1,300
Federal statutory income tax rate   23.40%  
Tax Cuts and Jobs Act of 2017, decrease of deferred tax assets   $ 26,800  
Scenario, Forecast      
Valuation Allowance [Line Items]      
Federal statutory income tax rate 21.00%    
U.S. Federal      
Valuation Allowance [Line Items]      
Net operating loss carryforwards   187,500  
Tax credits   51,300  
U.S. State      
Valuation Allowance [Line Items]      
Net operating loss carryforwards   224,100  
International      
Valuation Allowance [Line Items]      
Net operating loss carryforwards   $ 9,100  
Domestic and certain Non-Domestic      
Valuation Allowance [Line Items]      
Operating loss period   3 years