XML 71 R60.htm IDEA: XBRL DOCUMENT
v3.21.2

FAIR VALUE MEASUREMENTS - Fair Value Measurements (Details) - USD ($) $ in Thousands | Jul. 31, 2021 | Oct. 31, 2020
--- | --- | ---
Assets: |  |
Debt securities | $ 242,898 |
Fair value, Measurements, Recurring |  |
Assets: |  |
Deferred compensation plan assets | 12,380 | $ 8,213
Total assets measured at fair value | 1,279,279 | 1,180,842
Liabilities: |  |
Total liabilities measured at fair value | 24,391 | 29,194
Fair value, Measurements, Recurring | Money market funds |  |
Assets: |  |
Cash equivalents | 909,976 | 889,293
Fair value, Measurements, Recurring | Time deposits |  |
Assets: |  |
Cash equivalents | 30,029 |
Fair value, Measurements, Recurring | Level 1 |  |
Assets: |  |
Deferred compensation plan assets | 12,380 | 8,213
Total assets measured at fair value | 1,027,783 | 947,867
Liabilities: |  |
Total liabilities measured at fair value | 0 | 0
Fair value, Measurements, Recurring | Level 1 | Money market funds |  |
Assets: |  |
Cash equivalents | 909,976 | 889,293
Fair value, Measurements, Recurring | Level 1 | Time deposits |  |
Assets: |  |
Cash equivalents | 30,029 |
Fair value, Measurements, Recurring | Level 2 |  |
Assets: |  |
Deferred compensation plan assets | 0 | 0
Total assets measured at fair value | 251,496 | 232,975
Liabilities: |  |
Total liabilities measured at fair value | 24,391 | 29,194
Fair value, Measurements, Recurring | Level 2 | Money market funds |  |
Assets: |  |
Cash equivalents | 0 | 0
Fair value, Measurements, Recurring | Level 2 | Time deposits |  |
Assets: |  |
Cash equivalents | 0 |
Fair value, Measurements, Recurring | Level 3 |  |
Assets: |  |
Deferred compensation plan assets | 0 | 0
Total assets measured at fair value | 0 | 0
Liabilities: |  |
Total liabilities measured at fair value | 0 | 0
Fair value, Measurements, Recurring | Level 3 | Money market funds |  |
Assets: |  |
Cash equivalents | 0 | 0
Fair value, Measurements, Recurring | Level 3 | Time deposits |  |
Assets: |  |
Cash equivalents | 0 |
Foreign Currency Forward Contracts | Fair value, Measurements, Recurring |  |
Assets: |  |
Derivative asset | 8,598 | 82
Liabilities: |  |
Derivative liability | 3,709 | 681
Foreign Currency Forward Contracts | Fair value, Measurements, Recurring | Level 1 |  |
Assets: |  |
Derivative asset | 0 | 0
Liabilities: |  |
Derivative liability | 0 | 0
Foreign Currency Forward Contracts | Fair value, Measurements, Recurring | Level 2 |  |
Assets: |  |
Derivative asset | 8,598 | 82
Liabilities: |  |
Derivative liability | 3,709 | 681
Foreign Currency Forward Contracts | Fair value, Measurements, Recurring | Level 3 |  |
Assets: |  |
Derivative asset | 0 | 0
Liabilities: |  |
Derivative liability | 0 | 0
Forward Starting Interest Rate Swaps |  |
Liabilities: |  |
Derivative liability |  | 28,513
Forward Starting Interest Rate Swaps | Fair value, Measurements, Recurring |  |
Liabilities: |  |
Derivative liability | 20,682 |
Forward Starting Interest Rate Swaps | Fair value, Measurements, Recurring | Level 1 |  |
Liabilities: |  |
Derivative liability | 0 | 0
Forward Starting Interest Rate Swaps | Fair value, Measurements, Recurring | Level 2 |  |
Liabilities: |  |
Derivative liability | 20,682 | 28,513
Forward Starting Interest Rate Swaps | Fair value, Measurements, Recurring | Level 3 |  |
Liabilities: |  |
Derivative liability | 0 | 0
Bond mutual fund | Fair value, Measurements, Recurring |  |
Assets: |  |
Debt securities | 75,398 | 50,361
Bond mutual fund | Fair value, Measurements, Recurring | Level 1 |  |
Assets: |  |
Debt securities | 75,398 | 50,361
Bond mutual fund | Fair value, Measurements, Recurring | Level 2 |  |
Assets: |  |
Debt securities | 0 | 0
Bond mutual fund | Fair value, Measurements, Recurring | Level 3 |  |
Assets: |  |
Debt securities | 0 | 0
U.S. government obligations | Fair value, Measurements, Recurring |  |
Assets: |  |
Debt securities | 242,898 | 232,893
U.S. government obligations | Fair value, Measurements, Recurring | Level 1 |  |
Assets: |  |
Debt securities | 0 | 0
U.S. government obligations | Fair value, Measurements, Recurring | Level 2 |  |
Assets: |  |
Debt securities | 242,898 | 232,893
U.S. government obligations | Fair value, Measurements, Recurring | Level 3 |  |
Assets: |  |
Debt securities | $ 0 | $ 0

X
- Definition Deferred Compensation Plan Assets, Fair Value Disclosure + References No definition available. + Details
Name: | cien_DeferredCompensationPlanAssetsFairValueDisclosure
Namespace Prefix: | cien_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events. + 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 (a) -URI http://asc.fasb.org/extlink&oid=123874694&loc=d3e19207-110258 + Details
Name: | us-gaap_AssetsFairValueDisclosure
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- References No definition available. + Details
Name: | us-gaap_AssetsFairValueDisclosureAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(6)) -URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 30 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=124258926&loc=SL82898722-210454 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 45 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=124260329&loc=d3e26610-111562 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (aa) -URI http://asc.fasb.org/extlink&oid=123581744&loc=d3e27161-111563 + Details
Name: | us-gaap_AvailableForSaleSecuritiesDebtSecurities
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Fair value portion of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. + References No definition available. + Details
Name: | us-gaap_CashAndCashEquivalentsFairValueDisclosure
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Fair value, after the effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets not subject to a master netting arrangement and not elected to be offset. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 55 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=99393222&loc=SL20226008-175313 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 55 -Paragraph 22 -URI http://asc.fasb.org/extlink&oid=99393222&loc=SL20226052-175313 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=123594938&loc=d3e13433-108611 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=51824906&loc=SL20225862-175312 + Details
Name: | us-gaap_DerivativeAssets
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Fair value, after the effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes liabilities not subject to a master netting arrangement and not elected to be offset. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=51824906&loc=SL20225862-175312 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 55 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=99393222&loc=SL20226008-175313 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=123594938&loc=d3e13433-108611 Reference 4: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 55 -Paragraph 22 -URI http://asc.fasb.org/extlink&oid=99393222&loc=SL20226052-175313 + Details
Name: | us-gaap_DerivativeLiabilities
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Fair value of financial and nonfinancial obligations. + 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 (a) -URI http://asc.fasb.org/extlink&oid=123874694&loc=d3e19207-110258 + Details
Name: | us-gaap_LiabilitiesFairValueDisclosure
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- References No definition available. + Details
Name: | us-gaap_LiabilitiesFairValueDisclosureAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_FairValueByMeasurementFrequencyAxis=us-gaap_FairValueMeasurementsRecurringMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_CashAndCashEquivalentsAxis=us-gaap_MoneyMarketFundsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_CashAndCashEquivalentsAxis=us-gaap_BankTimeDepositsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel1Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel2Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel3Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DerivativeInstrumentRiskAxis=us-gaap_ForeignExchangeForwardMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DerivativeInstrumentRiskAxis=us-gaap_InterestRateSwapMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancialInstrumentAxis=us-gaap_FixedIncomeFundsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancialInstrumentAxis=us-gaap_USGovernmentAgenciesDebtSecuritiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |