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SHORT-TERM AND LONG-TERM INVESTMENTS (Tables)
 12 Months Ended
Oct. 30, 2021
Investments, Debt and Equity Securities [Abstract]  
Short-term and long-term investments As of the dates indicated, investments are comprised of the following (in thousands):
 October 30, 2021
Amortized CostGross Unrealized
Gains		Gross Unrealized
Losses		Estimated Fair
Value
U.S. government obligations:
Included in short-term investments$181,488 $5 $(10)$181,483 
Included in long-term investments70,225 — (187)70,038 
$251,713 $5 $(197)$251,521 
 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 
Legal maturities of debt investments
The following table summarizes the legal maturities of debt investments at October 30, 2021 (in thousands):
 October 30, 2021
Amortized CostEstimated Fair
Value
Less than one year$181,488 $181,483 
Due in 1-2 years70,225 70,038 
$251,713 $251,521