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Restricted Cash and Short-Term Investments - Narrative (Details) - USD ($)
$ in Millions
Jul. 28, 2019
Oct. 28, 2018
Restricted cash and short-term investments    
Restricted Cash and Cash Equivalents Items [Line Items]    
Short-term investments $ 3.1 $ 3.1
Short-Term Credit Facility | Restricted cash and short-term investments    
Restricted Cash and Cash Equivalents Items [Line Items]    
Restricted as collateral 0.5 0.5
Associated Vendors    
Restricted Cash and Cash Equivalents Items [Line Items]    
Restricted cash $ 7.4 $ 11.3