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FAIR VALUE MEASUREMENTS
 3 Months Ended
Jan. 28, 2023
Fair Value Disclosures [Abstract]  
FAIR VALUE MEASUREMENTS FAIR VALUE MEASUREMENTS
    As of the dates indicated, the following tables summarize the assets and liabilities that are recorded at fair value on a recurring basis (in thousands):
 January 28, 2023
 Level 1Level 2Level 3Total
Assets:    
Money market funds$706,940 $— $— $706,940 
Bond mutual fund100,152 — — 100,152 
Time deposits41,022 — — 41,022 
Deferred compensation plan assets14,330 — — 14,330 
U.S. government obligations— 87,316 — 87,316 
Corporate debt securities— 16,350 — 16,350 
Foreign currency forward contracts— 2,985 — 2,985 
Forward starting interest rate swaps— 7,923 — 7,923 
Total assets measured at fair value$862,444 $114,574 $— $977,018 
Liabilities:
Foreign currency forward contracts$— $8,191 $— $8,191 
Forward starting interest rate swaps— 2,181 — 2,181 
Total liabilities measured at fair value$— $10,372 $— $10,372 
October 29, 2022
Level 1Level 2Level 3Total
Assets:
Money market funds$639,024 $— $— $639,024 
Bond mutual fund71,145 — — 71,145 
Time deposits55,825 — — 55,825 
Deferred compensation plan assets12,751 — — 12,751 
U.S. government obligations— 134,584 — 134,584 
Corporate debt securities— 54,495 — 54,495 
Foreign currency forward contracts— 251 — 251 
Forward starting interest rate swaps— 12,306 — 12,306 
Total assets measured at fair value$778,745 $201,636 $— $980,381 
Liabilities:
Foreign currency forward contracts$— $15,605 $— $15,605 
Total liabilities measured at fair value$— $15,605 $— $15,605 

As of the dates indicated, the assets and liabilities above are presented on Ciena’s Condensed Consolidated Balance Sheets as follows (in thousands):
 January 28, 2023
 Level 1Level 2Level 3Total
Assets:    
Cash equivalents$848,114 $— $— $848,114 
Short-term investments— 100,424 — 100,424 
Prepaid expenses and other— 2,985 — 2,985 
Long-term investments— 3,242 — 3,242 
Other long-term assets14,330 7,923 — 22,253 
Total assets measured at fair value$862,444 $114,574 $— $977,018 
Liabilities:
Accrued liabilities and other short-term obligations$— $8,191 $— $8,191 
Other long-term obligations— 2,181 — 2,181 
Total liabilities measured at fair value$— $10,372 $— $10,372 
 October 29, 2022
 Level 1Level 2Level 3Total
Assets:    
Cash equivalents$757,725 $7,974 $— $765,699 
Short-term investments8,269 145,720 — 153,989 
Prepaid expenses and other— 251 — 251 
Long-term investments— 35,385 — 35,385 
Other long-term assets12,751 12,306 — 25,057 
Total assets measured at fair value$778,745 $201,636 $— $980,381 
Liabilities:
Accrued liabilities and other short-term obligations$— $15,605 $— $15,605 
Total liabilities measured at fair value$— $15,605 $— $15,605 
Ciena did not have any transfers between Level 1 and Level 2 fair value measurements during the periods presented.