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FAIR VALUE MEASUREMENTS (Tables)

9 Months Ended

Jul. 31, 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):

			July 31, 2021
			Level 1						Level 2						Level 3						Total
Assets:
Money market funds			$	909,976					$	—					$	—					$	909,976
Bond mutual fund			75,398						—						—						75,398
Time deposits			30,029						—						—						30,029
Deferred compensation plan assets			12,380						—						—						12,380
U.S. government obligations			—						242,898						—						242,898
Foreign currency forward contracts			—						8,598						—						8,598
Total assets measured at fair value			$	1,027,783					$	251,496					$	—					$	1,279,279
Liabilities:
Foreign currency forward contracts			$	—					$	3,709					$	—					$	3,709
Forward starting interest rate swaps			—						20,682						—						20,682
Total liabilities measured at fair value			$	—					$	24,391					$	—					$	24,391

			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):

			July 31, 2021
			Level 1						Level 2						Level 3						Total
Assets:
Cash equivalents			$	1,015,403					$	—					$	—					$	1,015,403
Short-term investments			—						182,010						—						182,010
Prepaid expenses and other			—						8,598						—						8,598
Long-term investments			—						60,888						—						60,888
Other long-term assets			12,380						—						—						12,380
Total assets measured at fair value			$	1,027,783					$	251,496					$	—					$	1,279,279
Liabilities:
Accrued liabilities and other short-term obligations			$	—					$	3,709					$	—					$	3,709
Other long-term obligations			—						20,682						—						20,682
Total liabilities measured at fair value			$	—					$	24,391					$	—					$	24,391

			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

X

- Definition

Tabular disclosure of assets, including [financial] instruments measured at fair value that are classified in stockholders' equity, if any, by class that are measured at fair value on a recurring basis. The disclosures contemplated herein include the fair value measurements at the reporting date by the level within the fair value hierarchy in which the fair value measurements in their entirety fall, segregating fair value measurements using quoted prices in active markets for identical assets (Level 1), significant other observable inputs (Level 2), and significant unobservable inputs (Level 3).

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=123874694&loc=d3e19207-110258

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=123874694&loc=d3e19207-110258

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X

- Definition

Tabular disclosure of the fair value of financial instruments, including financial assets and financial liabilities, and the measurements of those instruments, assets, and liabilities.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 11
-URI http://asc.fasb.org/extlink&oid=123594938&loc=d3e13467-108611

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=123874694&loc=d3e19207-110258

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