Fair Value Measurements (Tables)

3 Months Ended

Jan. 30, 2021

Fair Value Disclosures [Abstract]

Schedule of the Fair Value of Assets and Liabilities Recorded on a Recurring Basis

As of the date indicated, the following table summarizes the assets and liabilities that are recorded at fair value on a recurring basis (in thousands):

	January 30, 2021
	Level 1		Level 2		Level 3		Total
Assets:
Money market funds	$	810,289	$	—	$	—	$	810,289
Bond mutual fund	50,348		—		—		50,348
Time deposits	35,014		—		—		35,014
Deferred compensation plan assets	10,669		—		—		10,669
U.S. government obligations	—		253,798		—		253,798
Foreign currency forward contracts	—		8,397		—		8,397
Total assets measured at fair value	$	906,320	$	262,195	$	—	$	1,168,515
Liabilities:
Foreign currency forward contracts	$	—	$	417	$	—	$	417
Forward starting interest rate swaps	—		26,248		—		26,248
Total liabilities measured at fair value	$	—	$	26,665	$	—	$	26,665

	October 31, 2020
	Level 1		Level 2		Level 3		Total
Assets:
Money market funds	$	889,293	$	—	$	—	$	889,293
Bond mutual fund	50,361		—		—		50,361
Deferred compensation plan assets	8,213		—		—		8,213
U.S. government obligations	—		232,893		—		232,893
Foreign currency forward contracts	—		82		—		82
Total assets measured at fair value	$	947,867	$	232,975	$	—	$	1,180,842
Liabilities:
Foreign currency forward contracts	$	—	$	681	$	—	$	681
Forward starting interest rate swaps	—		28,513		—		28,513
Total liabilities measured at fair value	$	—	$	29,194	$	—	$	29,194

Schedule of Assets and Liabilities as Presented on Ciena's Condensed Consolidated Balance Sheets

As of the date indicated, the assets and liabilities above are presented on Ciena’s Condensed Consolidated Balance Sheets as follows (in thousands):

	January 30, 2021
	Level 1		Level 2		Level 3		Total
Assets:
Cash equivalents	$	895,651	$	—	$	—	$	895,651
Short-term investments	—		151,434		—		151,434
Prepaid expenses and other	—		8,397		—		8,397
Other long-term assets	10,669		102,364		—		113,033
Total assets measured at fair value	$	906,320	$	262,195	$	—	$	1,168,515
Liabilities:
Accrued liabilities and other short-term obligations	$	—	$	417	$	—	$	417
Other long-term obligations	—		26,248		—		26,248
Total liabilities measured at fair value	$	—	$	26,665	$	—	$	26,665

	October 31, 2020
	Level 1		Level 2		Level 3		Total
Assets:
Cash equivalents	$	939,654	$	—	$	—	$	939,654
Short-term investments	—		150,667		—		150,667
Prepaid expenses and other	—		82		—		82
Other long-term assets	8,213		82,226		—		90,439
Total assets measured at fair value	$	947,867	$	232,975	$	—	$	1,180,842
Liabilities:
Accrued liabilities and other short-term obligations	$	—	$	681	$	—	$	681
Other long-term obligations	—		28,513		—		28,513
Total liabilities measured at fair value	$	—	$	29,194	$	—	$	29,194