XML 46 R35.htm IDEA: XBRL DOCUMENT v3.21.2
SHORT-TERM AND LONG-TERM INVESTMENTS (Tables)
 9 Months Ended
Jul. 31, 2021
Investments, Debt and Equity Securities [Abstract]  
Schedule of Short-Term and Long-Term Investments
As of the dates indicated, investments are comprised of the following (in thousands):
 July 31, 2021
Amortized CostGross Unrealized
Gains		Gross Unrealized
Losses		Estimated Fair
Value
U.S. government obligations:
Included in short-term investments$181,966 $44 $— $182,010 
Included in long-term investments60,887 7 (6)60,888 
$242,853 $51 $(6)$242,898 

 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 
Schedule of Legal Maturities of Debt Investments The following table summarizes the final legal maturities of debt investments at July 31, 2021 (in thousands):
Amortized
Cost		Estimated
Fair Value
Less than one year$181,966 $182,010 
Due in 1-2 years60,887 60,888 
 $242,853 $242,898