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Short-Term and Long-Term Investments
 3 Months Ended
Jan. 30, 2021
Investments, Debt and Equity Securities [Abstract]  
Short-Term and Long-Term Investments SHORT-TERM AND LONG-TERM INVESTMENTS
As of the dates indicated, investments are comprised of the following (in thousands):
 January 30, 2021
Amortized CostGross Unrealized
Gains		Gross Unrealized
Losses		Estimated Fair
Value
U.S. government obligations:
Included in short-term investments$151,420 $14 $— $151,434 
Included in long-term investments102,360 4 — 102,364 
$253,780 $18 $— $253,798 
 October 31, 2020
Amortized CostGross Unrealized
Gains		Gross Unrealized
Losses		Estimated Fair
Value
U.S. government obligations:
Included in short-term investments$150,559 $109 $(1)$150,667 
Included in long-term investments82,252 — (26)82,226 
$232,811 $109 $(27)$232,893 


The following table summarizes the final legal maturities of debt investments at January 30, 2021 (in thousands):
Amortized
Cost		Estimated
Fair Value
Less than one year$151,420 $151,434 
Due in 1-2 years102,360 102,364 
 $253,780 $253,798