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Short-Term and Long-Term Investments - Components of Investments (Details) - USD ($)
$ in Thousands
May 02, 2020
Nov. 02, 2019
Debt Securities, Available-for-sale [Line Items]    
Amortized Cost $ 100,116  
Estimated Fair Value 100,742  
U.S. government obligations    
Debt Securities, Available-for-sale [Line Items]    
Amortized Cost 100,116 $ 119,732
Gross Unrealized Gains 626 225
Gross Unrealized Losses 0 (3)
Estimated Fair Value 100,742 119,954
Included in short-term investments | U.S. government obligations    
Debt Securities, Available-for-sale [Line Items]    
Amortized Cost 100,116 109,715
Gross Unrealized Gains 626 225
Gross Unrealized Losses 0 0
Estimated Fair Value $ 100,742 109,940
Included in long-term investments | U.S. government obligations    
Debt Securities, Available-for-sale [Line Items]    
Amortized Cost   10,017
Gross Unrealized Gains   0
Gross Unrealized Losses   (3)
Estimated Fair Value   $ 10,014