$CIEN
CIENA CORP Stock $cien

$cien Overview Financials Valuation SEC Filings Company Website

2023 Q4 Form 10-K Financial Statement

#000093639523000044 Filed on December 15, 2023

Income Statement

Concept	2023 Q4	2023
Revenue	$1.129B	$4.387B
YoY Change	16.32%	20.75%
Cost Of Revenue	$643.2M	$2.508B
YoY Change	19.69%	21.01%
Gross Profit	$486.3M	$1.879B
YoY Change	12.15%	20.41%
Gross Profit Margin	43.05%	42.83%
Selling, General & Admin	$187.7M	$706.1M
YoY Change	10.4%	9.31%
% of Gross Profit	38.61%	37.58%
Research & Development	$189.4M	$750.6M
YoY Change	13.51%	20.16%
% of Gross Profit	38.96%	39.95%
Depreciation & Amortization	$36.68M	$92.56M
YoY Change	3.61%	-33.98%
% of Gross Profit	7.54%	4.93%
Operating Expenses	$387.8M	$1.521B
YoY Change	13.15%	16.74%
Operating Profit	$98.51M	$357.5M
YoY Change	8.39%	39.0%
Interest Expense	-$8.072M	$88.03M
YoY Change	-32.1%	-318.41%
% of Operating Profit	-8.19%	24.62%
Other Income/Expense, Net	-$4.838M	-$5.048M
YoY Change	155.44%	-14.67%
Pretax Income	$70.52M	$323.7M
YoY Change	7.86%	77.34%
Income Tax	-$20.68M	$68.83M
% Of Pretax Income	-29.33%	21.27%
Net Earnings	$91.20M	$254.8M
YoY Change	58.21%	66.66%
Net Earnings / Revenue	8.07%	5.81%
Basic Earnings Per Share		$1.71
Diluted Earnings Per Share	$0.62	$1.71
COMMON SHARES
Basic Shares Outstanding	144.8M shares	149.0M shares
Diluted Shares Outstanding		149.4M shares

Balance Sheet

Concept	2023 Q4	2023
SHORT-TERM ASSETS
Cash & Short-Term Investments	$1.115B	$1.115B
YoY Change	-2.87%	-2.87%
Cash & Equivalents	$1.011B	$1.011B
Short-Term Investments	$104.8M	$104.8M
Other Short-Term Assets	$222.0M	$222.0M
YoY Change	-40.02%	-40.02%
Inventory	$1.051B	$1.051B
Prepaid Expenses
Receivables	$1.004B	$1.154B
Other Receivables	$33.41M	$33.41M
Total Short-Term Assets	$3.576B	$3.576B
YoY Change	5.61%	5.61%
LONG-TERM ASSETS
Property, Plant & Equipment	$315.3M	$315.3M
YoY Change	0.77%	0.77%
Goodwill	$444.8M
YoY Change	35.47%
Intangibles	$205.6M
YoY Change	195.79%
Long-Term Investments	$134.3M	$134.3M
YoY Change	279.48%	279.61%
Other Assets	$116.5M	$925.7M
YoY Change	-87.58%	-1.27%
Total Long-Term Assets	$2.026B	$2.026B
YoY Change	20.31%	20.31%
TOTAL ASSETS
Total Short-Term Assets	$3.576B	$3.576B
Total Long-Term Assets	$2.026B	$2.026B
Total Assets	$5.601B	$5.601B
YoY Change	10.49%	10.49%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$317.8M	$317.8M
YoY Change	-38.41%	-38.41%
Accrued Expenses	$431.4M	$413.3M
YoY Change	13.62%	8.84%
Deferred Revenue	$154.4M
YoY Change	11.98%
Short-Term Debt	$0.00	$0.00
YoY Change
Long-Term Debt Due	$11.70M	$15.65M
YoY Change	68.83%	125.87%
Total Short-Term Liabilities	$932.0M	$932.0M
YoY Change	-10.43%	-10.43%
LONG-TERM LIABILITIES
Long-Term Debt	$1.543B	$1.592B
YoY Change	45.45%	49.99%
Other Long-Term Liabilities	$170.4M	$229.5M
YoY Change	-33.19%	-10.02%
Total Long-Term Liabilities	$1.714B	$1.821B
YoY Change	30.21%	38.36%
TOTAL LIABILITIES
Total Short-Term Liabilities	$932.0M	$932.0M
Total Long-Term Liabilities	$1.714B	$1.821B
Total Liabilities	$2.753B	$2.753B
YoY Change	16.82%	16.82%
SHAREHOLDERS EQUITY
Retained Earnings	-$3.377B
YoY Change	-7.02%
Common Stock	$6.264B
YoY Change	-2.01%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$2.848B	$2.848B
YoY Change
Total Liabilities & Shareholders Equity	$5.601B	$5.601B
YoY Change	10.49%	10.49%

Cashflow Statement

Concept	2023 Q4	2023
OPERATING ACTIVITIES
Net Income	$91.20M	$254.8M
YoY Change	58.21%	66.66%
Depreciation, Depletion And Amortization	$36.68M	$92.56M
YoY Change	3.61%	-33.98%
Cash From Operating Activities	$195.4M	$168.3M
YoY Change	-1447.16%	-200.34%
INVESTING ACTIVITIES
Capital Expenditures	$22.80M	$106.2M
YoY Change	-195.35%	-216.93%
Acquisitions		$230.0M
YoY Change		270.79%
Other Investing Activities	-$75.36M	-$277.3M
YoY Change	-135.97%	2558.26%
Cash From Investing Activities	-$98.15M	-$383.5M
YoY Change	-152.89%	278.73%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net		$210.8M
YoY Change		-144.82%
Debt Paid & Issued, Net		$9.430M
YoY Change		81.45%
Cash From Financing Activities	-197.1M	$229.4M
YoY Change	756.0%	-272.39%
NET CHANGE
Cash From Operating Activities	195.4M	$168.3M
Cash From Investing Activities	-98.15M	-$383.5M
Cash From Financing Activities	-197.1M	$229.4M
Net Change In Cash	-99.84M	$16.41M
YoY Change	-167.44%	-104.08%
FREE CASH FLOW
Cash From Operating Activities	$195.4M	$168.3M
Capital Expenditures	$22.80M	$106.2M
Free Cash Flow	$172.6M	$62.14M
YoY Change	1735.96%	-180.76%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2020	us-gaap	Accounting Standards Update Extensible List AccountingStandardsUpdateExtensibleList	http://fasb.org/us-gaap/2023#AccountingStandardsUpdate201613Member
CY2022Q4	us-gaap	Derivative Asset Noncurrent Statement Of Financial Position Extensible Enumeration DerivativeAssetNoncurrentStatementOfFinancialPositionExtensibleEnumeration	http://fasb.org/us-gaap/2023#OtherAssetsNoncurrent
CY2023Q4	us-gaap	Derivative Asset Noncurrent Statement Of Financial Position Extensible Enumeration DerivativeAssetNoncurrentStatementOfFinancialPositionExtensibleEnumeration	http://fasb.org/us-gaap/2023#OtherAssetsNoncurrent
CY2023Q4	us-gaap	Finance Lease Liability Current Statement Of Financial Position Extensible List FinanceLeaseLiabilityCurrentStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2023#AccruedLiabilitiesCurrent
CY2022Q4	us-gaap	Finance Lease Liability Current Statement Of Financial Position Extensible List FinanceLeaseLiabilityCurrentStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2023#AccruedLiabilitiesCurrent
CY2022Q4	us-gaap	Finance Lease Liability Noncurrent Statement Of Financial Position Extensible List FinanceLeaseLiabilityNoncurrentStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2023#OtherLiabilitiesNoncurrent
CY2023Q4	us-gaap	Finance Lease Liability Noncurrent Statement Of Financial Position Extensible List FinanceLeaseLiabilityNoncurrentStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2023#OtherLiabilitiesNoncurrent
CY2023Q4	us-gaap	Finance Lease Right Of Use Asset Statement Of Financial Position Extensible List FinanceLeaseRightOfUseAssetStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2023#PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization
CY2022Q4	us-gaap	Finance Lease Right Of Use Asset Statement Of Financial Position Extensible List FinanceLeaseRightOfUseAssetStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2023#PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization
CY2023Q4	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0	shares
CY2022Q4	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	0	shares
CY2022Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	148412943	shares
CY2022Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	148412943	shares
CY2023	us-gaap	Interest Expense InterestExpense	88026000	usd
CY2022	us-gaap	Interest Expense InterestExpense	47050000	usd
CY2021	us-gaap	Interest Expense InterestExpense	30837000	usd
CY2021	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	35797000	usd
CY2021	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	535993000	usd
CY2020Q4	us-gaap	Stockholders Equity StockholdersEquity	2509597000	usd
CY2021	us-gaap	Net Income Loss NetIncomeLoss	500196000	usd
CY2021	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	35797000	usd
CY2021	cien	Stock Repurchased During Period Excluding Shares Purchased For Tax Withholdings For Share Based Compensation Value StockRepurchasedDuringPeriodExcludingSharesPurchasedForTaxWithholdingsForShareBasedCompensationValue	92088000	usd
CY2021	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	28457000	usd
CY2021	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	84336000	usd
CY2021	cien	Stock Repurchased During Period Shares Purchased For Tax Withholdings For Share Based Compensation Value StockRepurchasedDuringPeriodSharesPurchasedForTaxWithholdingsForShareBasedCompensationValue	44071000	usd
CY2021Q4	us-gaap	Stockholders Equity StockholdersEquity	3020018000	usd
CY2022	us-gaap	Net Income Loss NetIncomeLoss	152902000	usd
CY2022	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-47084000	usd
CY2022	cien	Stock Repurchased During Period Excluding Shares Purchased For Tax Withholdings For Share Based Compensation Value StockRepurchasedDuringPeriodExcludingSharesPurchasedForTaxWithholdingsForShareBasedCompensationValue	500000000	usd
CY2022	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	30348000	usd
CY2022	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	105131000	usd
CY2022	cien	Stock Repurchased During Period Shares Purchased For Tax Withholdings For Share Based Compensation Value StockRepurchasedDuringPeriodSharesPurchasedForTaxWithholdingsForShareBasedCompensationValue	48454000	usd
CY2022Q4	us-gaap	Stockholders Equity StockholdersEquity	2712861000	usd
CY2023	us-gaap	Net Income Loss NetIncomeLoss	254827000	usd
CY2023	us-gaap	Net Income Loss NetIncomeLoss	254827000	usd
CY2023	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	8878000	usd
CY2023	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	8878000	usd
CY2023	cien	Stock Repurchased During Period Excluding Shares Purchased For Tax Withholdings For Share Based Compensation Value StockRepurchasedDuringPeriodExcludingSharesPurchasedForTaxWithholdingsForShareBasedCompensationValue	251511000	usd
CY2023	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	31357000	usd
CY2023	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	130455000	usd
CY2023	cien	Stock Repurchased During Period Shares Purchased For Tax Withholdings For Share Based Compensation Value StockRepurchasedDuringPeriodSharesPurchasedForTaxWithholdingsForShareBasedCompensationValue	38506000	usd
CY2023Q4	us-gaap	Stockholders Equity StockholdersEquity	2848361000	usd
CY2023	us-gaap	Net Income Loss NetIncomeLoss	254827000	usd
CY2022	us-gaap	Net Income Loss NetIncomeLoss	152902000	usd
CY2021	us-gaap	Net Income Loss NetIncomeLoss	500196000	usd
CY2023	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	-1864000	usd
CY2022	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	0	usd
CY2021	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	0	usd
CY2023	us-gaap	Depreciation Depreciation	92564000	usd
CY2022	us-gaap	Depreciation Depreciation	95922000	usd
CY2021	us-gaap	Depreciation Depreciation	96233000	usd
CY2023	us-gaap	Share Based Compensation ShareBasedCompensation	130455000	usd
CY2022	us-gaap	Share Based Compensation ShareBasedCompensation	105131000	usd
CY2021	us-gaap	Share Based Compensation ShareBasedCompensation	84336000	usd
CY2023	cien	Amortization Of Intangible Assets Excluding Amortization Included In Property Plant And Equipment AmortizationOfIntangibleAssetsExcludingAmortizationIncludedInPropertyPlantAndEquipment	49616000	usd
CY2022	cien	Amortization Of Intangible Assets Excluding Amortization Included In Property Plant And Equipment AmortizationOfIntangibleAssetsExcludingAmortizationIncludedInPropertyPlantAndEquipment	44281000	usd
CY2021	cien	Amortization Of Intangible Assets Excluding Amortization Included In Property Plant And Equipment AmortizationOfIntangibleAssetsExcludingAmortizationIncludedInPropertyPlantAndEquipment	36033000	usd
CY2023	us-gaap	Deferred Income Taxes And Tax Credits DeferredIncomeTaxesAndTaxCredits	-14852000	usd
CY2022	us-gaap	Deferred Income Taxes And Tax Credits DeferredIncomeTaxesAndTaxCredits	-27502000	usd
CY2021	us-gaap	Deferred Income Taxes And Tax Credits DeferredIncomeTaxesAndTaxCredits	-156469000	usd
CY2023	us-gaap	Inventory Write Down InventoryWriteDown	29464000	usd
CY2022	us-gaap	Inventory Write Down InventoryWriteDown	16184000	usd
CY2021	us-gaap	Inventory Write Down InventoryWriteDown	17850000	usd
CY2023	us-gaap	Product Warranty Expense ProductWarrantyExpense	31742000	usd
CY2022	us-gaap	Product Warranty Expense ProductWarrantyExpense	17440000	usd
CY2021	us-gaap	Product Warranty Expense ProductWarrantyExpense	17093000	usd
CY2023	us-gaap	Unrealized Gain Loss On Investments UnrealizedGainLossOnInvestments	26368000	usd
CY2022	us-gaap	Unrealized Gain Loss On Investments UnrealizedGainLossOnInvestments	4120000	usd
CY2021	us-gaap	Unrealized Gain Loss On Investments UnrealizedGainLossOnInvestments	164000	usd
CY2023	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-15771000	usd
CY2022	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-4120000	usd
CY2021	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-14689000	usd
CY2023	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	94565000	usd
CY2022	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	47069000	usd
CY2021	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	174377000	usd
CY2023	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	132497000	usd
CY2022	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	589113000	usd
CY2021	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	47567000	usd
CY2023	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	51965000	usd
CY2022	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	58996000	usd
CY2021	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	19691000	usd
CY2023	cien	Increase Decrease In Operating Lease Right Of Use Assets IncreaseDecreaseInOperatingLeaseRightOfUseAssets	-14190000	usd
CY2022	cien	Increase Decrease In Operating Lease Right Of Use Assets IncreaseDecreaseInOperatingLeaseRightOfUseAssets	-16453000	usd
CY2021	cien	Increase Decrease In Operating Lease Right Of Use Assets IncreaseDecreaseInOperatingLeaseRightOfUseAssets	-16632000	usd
CY2023	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	-138469000	usd
CY2022	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	100327000	usd
CY2021	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	162134000	usd
CY2023	us-gaap	Increase Decrease In Contract With Customer Liability IncreaseDecreaseInContractWithCustomerLiability	27412000	usd
CY2022	us-gaap	Increase Decrease In Contract With Customer Liability IncreaseDecreaseInContractWithCustomerLiability	26380000	usd
CY2021	us-gaap	Increase Decrease In Contract With Customer Liability IncreaseDecreaseInContractWithCustomerLiability	16822000	usd
CY2023	us-gaap	Increase Decrease In Operating Lease Liability IncreaseDecreaseInOperatingLeaseLiability	-20857000	usd
CY2022	us-gaap	Increase Decrease In Operating Lease Liability IncreaseDecreaseInOperatingLeaseLiability	-20096000	usd
CY2021	us-gaap	Increase Decrease In Operating Lease Liability IncreaseDecreaseInOperatingLeaseLiability	-22104000	usd
CY2023	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	168332000	usd
CY2022	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	-167756000	usd
CY2021	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	541646000	usd
CY2023	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	106197000	usd
CY2022	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	90818000	usd
CY2021	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	79550000	usd
CY2023	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	252329000	usd
CY2022	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	647526000	usd
CY2021	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	170525000	usd
CY2023	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	208104000	usd
CY2022	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	702197000	usd
CY2021	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	150000000	usd
CY2023	us-gaap	Proceeds From Sale Of Equity Method Investments ProceedsFromSaleOfEquityMethodInvestments	0	usd
CY2022	us-gaap	Proceeds From Sale Of Equity Method Investments ProceedsFromSaleOfEquityMethodInvestments	0	usd
CY2021	us-gaap	Proceeds From Sale Of Equity Method Investments ProceedsFromSaleOfEquityMethodInvestments	4678000	usd
CY2023	cien	Payments To Acquire Equity Securities Without Readily Determinable Fair Value PaymentsToAcquireEquitySecuritiesWithoutReadilyDeterminableFairValue	0	usd
CY2022	cien	Payments To Acquire Equity Securities Without Readily Determinable Fair Value PaymentsToAcquireEquitySecuritiesWithoutReadilyDeterminableFairValue	8000000	usd
CY2021	cien	Payments To Acquire Equity Securities Without Readily Determinable Fair Value PaymentsToAcquireEquitySecuritiesWithoutReadilyDeterminableFairValue	0	usd
CY2023	us-gaap	Payments For Proceeds From Derivative Instrument Investing Activities PaymentsForProceedsFromDerivativeInstrumentInvestingActivities	2984000	usd
CY2022	us-gaap	Payments For Proceeds From Derivative Instrument Investing Activities PaymentsForProceedsFromDerivativeInstrumentInvestingActivities	-4942000	usd
CY2021	us-gaap	Payments For Proceeds From Derivative Instrument Investing Activities PaymentsForProceedsFromDerivativeInstrumentInvestingActivities	-4680000	usd
CY2023	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	230048000	usd
CY2022	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	62043000	usd
CY2021	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	0	usd
CY2023	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-383454000	usd
CY2022	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-101248000	usd
CY2021	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-90717000	usd
CY2023	us-gaap	Proceeds From Issuance Of Senior Long Term Debt ProceedsFromIssuanceOfSeniorLongTermDebt	0	usd
CY2022	us-gaap	Proceeds From Issuance Of Senior Long Term Debt ProceedsFromIssuanceOfSeniorLongTermDebt	400000000	usd
CY2021	us-gaap	Proceeds From Issuance Of Senior Long Term Debt ProceedsFromIssuanceOfSeniorLongTermDebt	0	usd
CY2023	us-gaap	Proceeds From Issuance Of Medium Term Notes ProceedsFromIssuanceOfMediumTermNotes	497500000	usd
CY2022	us-gaap	Proceeds From Issuance Of Medium Term Notes ProceedsFromIssuanceOfMediumTermNotes	0	usd
CY2021	us-gaap	Proceeds From Issuance Of Medium Term Notes ProceedsFromIssuanceOfMediumTermNotes	0	usd
CY2023	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	9430000	usd
CY2022	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	5197000	usd
CY2021	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	6929000	usd
CY2023	cien	Proceeds From Modification Of Term Loan ProceedsFromModificationOfTermLoan	830000	usd
CY2022	cien	Proceeds From Modification Of Term Loan ProceedsFromModificationOfTermLoan	0	usd
CY2021	cien	Proceeds From Modification Of Term Loan ProceedsFromModificationOfTermLoan	0	usd
CY2023	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	6379000	usd
CY2022	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	5484000	usd
CY2021	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	0	usd
CY2023	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	3791000	usd
CY2022	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	3468000	usd
CY2021	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	3004000	usd
CY2023	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	38506000	usd
CY2022	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	48454000	usd
CY2021	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	44071000	usd
CY2023	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	242201000	usd
CY2022	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	500800000	usd
CY2021	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	91288000	usd
CY2023	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	31357000	usd
CY2022	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	30348000	usd
CY2021	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	28457000	usd
CY2023	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	229380000	usd
CY2022	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-133055000	usd
CY2021	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-116835000	usd
CY2023	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	2150000	usd
CY2022	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	-26167000	usd
CY2021	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	-198000	usd
CY2023	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	16408000	usd
CY2022	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-428226000	usd
CY2021	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	333896000	usd
CY2022Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	994378000	usd
CY2021Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	1422604000	usd
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	1088708000	usd
CY2023Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	1010786000	usd
CY2022Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	994378000	usd
CY2021Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	1422604000	usd
CY2023	us-gaap	Interest Paid Net InterestPaidNet	84465000	usd
CY2022	us-gaap	Interest Paid Net InterestPaidNet	42812000	usd
CY2021	us-gaap	Interest Paid Net InterestPaidNet	29864000	usd
CY2023	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	78242000	usd
CY2022	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	34967000	usd
CY2021	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	73127000	usd
CY2023	us-gaap	Operating Lease Payments OperatingLeasePayments	22782000	usd
CY2022	us-gaap	Operating Lease Payments OperatingLeasePayments	21661000	usd
CY2021	us-gaap	Operating Lease Payments OperatingLeasePayments	24058000	usd
CY2023	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	6990000	usd
CY2022	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	12373000	usd
CY2021	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	10138000	usd
CY2023	cien	Repurchase Of Common Stock In Accrued Liabilities From Repurchase Program RepurchaseOfCommonStockInAccruedLiabilitiesFromRepurchaseProgram	9310000	usd
CY2022	cien	Repurchase Of Common Stock In Accrued Liabilities From Repurchase Program RepurchaseOfCommonStockInAccruedLiabilitiesFromRepurchaseProgram	0	usd
CY2021	cien	Repurchase Of Common Stock In Accrued Liabilities From Repurchase Program RepurchaseOfCommonStockInAccruedLiabilitiesFromRepurchaseProgram	800000	usd
CY2023	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	10236000	usd
CY2022	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	23242000	usd
CY2021	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	4356000	usd
CY2023	cien	Noncash Gain Loss From Cost Method Equity Investment NoncashGainLossFromCostMethodEquityInvestment	26368000	usd
CY2022	cien	Noncash Gain Loss From Cost Method Equity Investment NoncashGainLossFromCostMethodEquityInvestment	4120000	usd
CY2021	cien	Noncash Gain Loss From Cost Method Equity Investment NoncashGainLossFromCostMethodEquityInvestment	164000	usd
CY2023	us-gaap	Fiscal Period FiscalPeriod	<span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Ciena has a 52 or 53-week fiscal year, which ends on the Saturday nearest to the last day of October in each year (</span><span style="background-color:#ffffff;color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">October 28, 2023</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">, </span><span style="background-color:#ffffff;color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">October 29, 2022,</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"> and </span><span style="background-color:#ffffff;color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">October 30, 2021,</span> for the periods reported). Fiscal 2023, fiscal 2022 and fiscal 2021 each consisted of a 52-week fiscal year.
CY2023	us-gaap	Use Of Estimates UseOfEstimates	<div style="text-indent:18pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The preparation of the financial statements and related disclosures in conformity with Generally Accepted Accounting Principles (“GAAP”) requires management to make estimates and judgments that affect the amounts reported in the consolidated financial statements and accompanying notes. Estimates are used for selling prices for multiple element arrangements, shared-based compensation, bad debts, valuation of inventories and investments, recoverability of intangible assets, other long-lived assets and goodwill, income taxes, warranty obligations, restructuring liabilities, derivatives, contingencies and litigation. Ciena bases its estimates on historical experience and assumptions that it believes are reasonable. Actual results may differ materially from management’s estimates.</span></div>
CY2021	us-gaap	Restructuring Charges RestructuringCharges	29565000	usd
CY2021	us-gaap	Payments For Restructuring PaymentsForRestructuring	31699000	usd
CY2021Q4	us-gaap	Restructuring Reserve RestructuringReserve	781000	usd
CY2023Q4	us-gaap	Finite Lived Intangible Asset Useful Life FiniteLivedIntangibleAssetUsefulLife	P7Y
CY2023	cien	Maintenance Spare Parts Amortization Period MaintenanceSparePartsAmortizationPeriod	P4Y
CY2022	us-gaap	Restructuring Charges RestructuringCharges	29970000	usd
CY2022	us-gaap	Payments For Restructuring PaymentsForRestructuring	24916000	usd
CY2023	cien	One Time Employee Termination Benefits Related Service Period OneTimeEmployeeTerminationBenefitsRelatedServicePeriod	P60D
CY2022Q4	us-gaap	Restructuring Reserve RestructuringReserve	5835000	usd
CY2023	us-gaap	Restructuring Charges RestructuringCharges	23834000	usd
CY2023	us-gaap	Payments For Restructuring PaymentsForRestructuring	27756000	usd
CY2023Q4	us-gaap	Restructuring Reserve RestructuringReserve	1913000	usd
CY2023	us-gaap	Revenues Revenues	4386549000	usd
CY2023	us-gaap	Revenues Revenues	4386549000	usd
CY2022	us-gaap	Revenues Revenues	3632661000	usd
CY2022	us-gaap	Revenues Revenues	3632661000	usd
CY2021	us-gaap	Revenues Revenues	3620684000	usd
CY2021	us-gaap	Revenues Revenues	3620684000	usd
CY2023	us-gaap	Revenues Revenues	4386549000	usd
CY2022	us-gaap	Revenues Revenues	3632661000	usd
CY2021	us-gaap	Revenues Revenues	3620684000	usd
CY2023Q4	us-gaap	Restructuring Reserve Current RestructuringReserveCurrent	1913000	usd
CY2022Q1	us-gaap	Asset Impairment Charges AssetImpairmentCharges	3800000	usd
CY2022Q1	us-gaap	Provision For Other Credit Losses ProvisionForOtherCreditLosses	1800000	usd
CY2023Q4	us-gaap	Inventory Finished Goods InventoryFinishedGoods	314168000	usd
CY2022Q4	us-gaap	Inventory Finished Goods InventoryFinishedGoods	258584000	usd
CY2023Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	1003876000	usd
CY2022Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	920772000	usd
CY2023Q4	us-gaap	Contract With Customer Asset Net ContractWithCustomerAssetNet	150312000	usd
CY2022Q4	us-gaap	Contract With Customer Asset Net ContractWithCustomerAssetNet	156039000	usd
CY2023Q4	us-gaap	Contract With Customer Liability ContractWithCustomerLiability	228460000	usd
CY2022Q4	us-gaap	Contract With Customer Liability ContractWithCustomerLiability	200235000	usd
CY2023	us-gaap	Contract With Customer Liability Revenue Recognized ContractWithCustomerLiabilityRevenueRecognized	135500000	usd
CY2022	us-gaap	Contract With Customer Liability Revenue Recognized ContractWithCustomerLiabilityRevenueRecognized	111300000	usd
CY2023Q4	us-gaap	Capitalized Contract Cost Net CapitalizedContractCostNet	30200000	usd
CY2022Q4	us-gaap	Capitalized Contract Cost Net CapitalizedContractCostNet	39700000	usd
CY2023	us-gaap	Capitalized Contract Cost Amortization CapitalizedContractCostAmortization	34200000	usd
CY2022	us-gaap	Capitalized Contract Cost Amortization CapitalizedContractCostAmortization	27300000	usd
CY2023Q4	us-gaap	Revenue Remaining Performance Obligation RevenueRemainingPerformanceObligation	1800000000	usd
CY2023Q4	us-gaap	Revenue Remaining Performance Obligation Percentage RevenueRemainingPerformanceObligationPercentage	0.81
CY2023Q4	us-gaap	Revenue Remaining Performance Obligation Expected Timing Of Satisfaction Period1 RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1	P12M
CY2023	us-gaap	Interest Income Expense Nonoperating Net InterestIncomeExpenseNonoperatingNet	45011000	usd
CY2022	us-gaap	Interest Income Expense Nonoperating Net InterestIncomeExpenseNonoperatingNet	10060000	usd
CY2021	us-gaap	Interest Income Expense Nonoperating Net InterestIncomeExpenseNonoperatingNet	2051000	usd
CY2023	us-gaap	Gain Loss On Foreign Currency Derivative Instruments Not Designated As Hedging Instruments GainLossOnForeignCurrencyDerivativeInstrumentsNotDesignatedAsHedgingInstruments	-3896000	usd
CY2022	us-gaap	Gain Loss On Foreign Currency Derivative Instruments Not Designated As Hedging Instruments GainLossOnForeignCurrencyDerivativeInstrumentsNotDesignatedAsHedgingInstruments	-4018000	usd
CY2021	us-gaap	Gain Loss On Foreign Currency Derivative Instruments Not Designated As Hedging Instruments GainLossOnForeignCurrencyDerivativeInstrumentsNotDesignatedAsHedgingInstruments	11172000	usd
CY2023	us-gaap	Equity Securities Fv Ni Unrealized Gain Loss EquitySecuritiesFvNiUnrealizedGainLoss	26368000	usd
CY2022	us-gaap	Equity Securities Fv Ni Unrealized Gain Loss EquitySecuritiesFvNiUnrealizedGainLoss	4120000	usd
CY2021	us-gaap	Equity Securities Fv Ni Unrealized Gain Loss EquitySecuritiesFvNiUnrealizedGainLoss	164000	usd
CY2023	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-5048000	usd
CY2022	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-5916000	usd
CY2021	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-533000	usd
CY2023	cien	Interest And Other Income Loss Net InterestAndOtherIncomeLossNet	62008000	usd
CY2022	cien	Interest And Other Income Loss Net InterestAndOtherIncomeLossNet	6747000	usd
CY2021	cien	Interest And Other Income Loss Net InterestAndOtherIncomeLossNet	-1768000	usd
CY2023	us-gaap	Equity Securities Fv Ni Unrealized Gain Loss EquitySecuritiesFvNiUnrealizedGainLoss	26400000	usd
CY2022	us-gaap	Equity Securities Fv Ni Unrealized Gain Loss EquitySecuritiesFvNiUnrealizedGainLoss	4100000	usd
CY2023	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	-400000	usd
CY2021	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	-14600000	usd
CY2022	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	2500000	usd
CY2023	us-gaap	Gain Loss On Foreign Currency Derivative Instruments Not Designated As Hedging Instruments GainLossOnForeignCurrencyDerivativeInstrumentsNotDesignatedAsHedgingInstruments	-3900000	usd
CY2022	us-gaap	Gain Loss On Foreign Currency Derivative Instruments Not Designated As Hedging Instruments GainLossOnForeignCurrencyDerivativeInstrumentsNotDesignatedAsHedgingInstruments	-4000000	usd
CY2021	us-gaap	Gain Loss On Foreign Currency Derivative Instruments Not Designated As Hedging Instruments GainLossOnForeignCurrencyDerivativeInstrumentsNotDesignatedAsHedgingInstruments	11200000	usd
CY2023Q4	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	368773000	usd
CY2023Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	33000	usd
CY2023Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	499000	usd
CY2023Q4	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	368307000	usd
CY2023Q4	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	368773000	usd
CY2023Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	33000	usd
CY2023Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	499000	usd
CY2023Q4	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	368307000	usd
CY2022Q4	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	248751000	usd
CY2022Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	1000	usd
CY2022Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	3848000	usd
CY2022Q4	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	244904000	usd
CY2022Q4	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	248751000	usd
CY2022Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	1000	usd
CY2022Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	3848000	usd
CY2022Q4	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	244904000	usd
CY2023Q4	us-gaap	Available For Sale Securities Debt Maturities Within One Year Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost	234318000	usd
CY2023Q4	us-gaap	Available For Sale Securities Debt Maturities Within One Year Fair Value AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue	234029000	usd
CY2023Q4	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsAmortizedCost	134455000	usd
CY2023Q4	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue	134278000	usd
CY2023Q4	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	368773000	usd
CY2023Q4	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	368307000	usd
CY2020Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	10598000	usd
CY2021	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	2346000	usd
CY2021	us-gaap	Allowance For Doubtful Accounts Receivable Write Offs AllowanceForDoubtfulAccountsReceivableWriteOffs	4238000	usd
CY2021Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	10912000	usd
CY2021Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	10912000	usd
CY2022	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	4199000	usd
CY2022	us-gaap	Allowance For Doubtful Accounts Receivable Write Offs AllowanceForDoubtfulAccountsReceivableWriteOffs	4153000	usd
CY2022Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	10958000	usd
CY2022Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	10958000	usd
CY2023	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	5718000	usd
CY2023	us-gaap	Allowance For Doubtful Accounts Receivable Write Offs AllowanceForDoubtfulAccountsReceivableWriteOffs	5022000	usd
CY2023Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	11654000	usd
CY2023Q4	us-gaap	Inventory Raw Materials InventoryRawMaterials	664797000	usd
CY2022Q4	us-gaap	Inventory Raw Materials InventoryRawMaterials	664916000	usd
CY2023Q4	us-gaap	Inventory Work In Process InventoryWorkInProcess	55242000	usd
CY2022Q4	us-gaap	Inventory Work In Process InventoryWorkInProcess	18232000	usd
CY2023Q4	us-gaap	Other Inventory Capitalized Costs OtherInventoryCapitalizedCosts	66634000	usd
CY2022Q4	us-gaap	Other Inventory Capitalized Costs OtherInventoryCapitalizedCosts	41084000	usd
CY2023Q4	us-gaap	Inventory Gross InventoryGross	1100841000	usd
CY2022Q4	us-gaap	Inventory Gross InventoryGross	982816000	usd
CY2023Q4	us-gaap	Inventory Net InventoryNet	1050838000	usd
CY2022Q4	us-gaap	Inventory Net InventoryNet	946730000	usd
CY2023	us-gaap	Inventory Write Down InventoryWriteDown	29500000	usd
CY2022	us-gaap	Inventory Write Down InventoryWriteDown	16200000	usd
CY2021	us-gaap	Inventory Write Down InventoryWriteDown	17850000	usd
CY2021	cien	Inventory Valuation Reserves Disposals InventoryValuationReservesDisposals	20528000	usd
CY2021Q4	us-gaap	Inventory Valuation Reserves InventoryValuationReserves	36959000	usd
CY2021Q4	us-gaap	Inventory Valuation Reserves InventoryValuationReserves	36959000	usd
CY2022	us-gaap	Inventory Write Down InventoryWriteDown	16184000	usd
CY2022	cien	Inventory Valuation Reserves Disposals InventoryValuationReservesDisposals	17057000	usd
CY2022Q4	us-gaap	Inventory Valuation Reserves InventoryValuationReserves	36086000	usd
CY2022Q4	us-gaap	Inventory Valuation Reserves InventoryValuationReserves	36086000	usd
CY2023	us-gaap	Inventory Write Down InventoryWriteDown	29464000	usd
CY2023	cien	Inventory Valuation Reserves Disposals InventoryValuationReservesDisposals	15547000	usd
CY2023Q4	us-gaap	Inventory Valuation Reserves InventoryValuationReserves	50003000	usd
CY2023Q4	us-gaap	Prepaid Taxes PrepaidTaxes	96724000	usd
CY2022Q4	us-gaap	Prepaid Taxes PrepaidTaxes	63975000	usd
CY2023Q4	us-gaap	Other Prepaid Expense Current OtherPrepaidExpenseCurrent	58954000	usd
CY2022Q4	us-gaap	Other Prepaid Expense Current OtherPrepaidExpenseCurrent	55440000	usd
CY2023Q4	cien	Product Demonstration Equipment Net ProductDemonstrationEquipmentNet	40682000	usd
CY2022Q4	cien	Product Demonstration Equipment Net ProductDemonstrationEquipmentNet	35929000	usd
CY2023Q4	us-gaap	Nontrade Receivables Current NontradeReceivablesCurrent	33408000	usd
CY2022Q4	us-gaap	Nontrade Receivables Current NontradeReceivablesCurrent	24026000	usd
CY2023Q4	us-gaap	Deferred Costs Current DeferredCostsCurrent	1170000	usd
CY2022Q4	us-gaap	Deferred Costs Current DeferredCostsCurrent	877000	usd
CY2023Q4	us-gaap	Derivative Assets Current DerivativeAssetsCurrent	1118000	usd
CY2022Q4	us-gaap	Derivative Assets Current DerivativeAssetsCurrent	251000	usd
CY2023Q4	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	405694000	usd
CY2022Q4	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	370053000	usd
CY2023	cien	Depreciation Of Product Demonstration Equipment DepreciationOfProductDemonstrationEquipment	8000000	usd
CY2022	cien	Depreciation Of Product Demonstration Equipment DepreciationOfProductDemonstrationEquipment	8700000	usd
CY2021	cien	Depreciation Of Product Demonstration Equipment DepreciationOfProductDemonstrationEquipment	9800000	usd
CY2023Q4	us-gaap	Property Plant And Equipment And Finance Lease Right Of Use Asset Before Accumulated Depreciation And Amortization PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetBeforeAccumulatedDepreciationAndAmortization	818780000	usd
CY2022Q4	us-gaap	Property Plant And Equipment And Finance Lease Right Of Use Asset Before Accumulated Depreciation And Amortization PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetBeforeAccumulatedDepreciationAndAmortization	768822000	usd
CY2023Q4	us-gaap	Property Plant And Equipment And Finance Lease Right Of Use Asset Accumulated Depreciation And Amortization PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAccumulatedDepreciationAndAmortization	538633000	usd
CY2022Q4	us-gaap	Property Plant And Equipment And Finance Lease Right Of Use Asset Accumulated Depreciation And Amortization PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAccumulatedDepreciationAndAmortization	501043000	usd
CY2023Q4	us-gaap	Property Plant And Equipment And Finance Lease Right Of Use Asset After Accumulated Depreciation And Amortization PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization	280147000	usd
CY2022Q4	us-gaap	Property Plant And Equipment And Finance Lease Right Of Use Asset After Accumulated Depreciation And Amortization PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization	267779000	usd
CY2023Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	1012496000	usd
CY2023Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	806869000	usd
CY2023Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	205627000	usd
CY2022Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	826904000	usd
CY2022Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	757387000	usd
CY2022Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	69517000	usd
CY2023	cien	Amortization Of Intangible Assets Excluding Amortization Included In Property Plant And Equipment AmortizationOfIntangibleAssetsExcludingAmortizationIncludedInPropertyPlantAndEquipment	49600000	usd
CY2022	cien	Amortization Of Intangible Assets Excluding Amortization Included In Property Plant And Equipment AmortizationOfIntangibleAssetsExcludingAmortizationIncludedInPropertyPlantAndEquipment	44300000	usd
CY2021	cien	Amortization Of Intangible Assets Excluding Amortization Included In Property Plant And Equipment AmortizationOfIntangibleAssetsExcludingAmortizationIncludedInPropertyPlantAndEquipment	36000000	usd
CY2022Q4	us-gaap	Goodwill Goodwill	328322000	usd
CY2023	us-gaap	Goodwill Acquired During Period GoodwillAcquiredDuringPeriod	116644000	usd
CY2023	us-gaap	Goodwill Foreign Currency Translation Gain Loss GoodwillForeignCurrencyTranslationGainLoss	-201000	usd
CY2023Q4	us-gaap	Goodwill Goodwill	444765000	usd
CY2023Q4	cien	Maintenance Spares Inventory Net Non Current MaintenanceSparesInventoryNetNonCurrent	54042000	usd
CY2022Q4	cien	Maintenance Spares Inventory Net Non Current MaintenanceSparesInventoryNetNonCurrent	44815000	usd
CY2023Q4	us-gaap	Derivative Assets Noncurrent DerivativeAssetsNoncurrent	24953000	usd
CY2022Q4	us-gaap	Derivative Assets Noncurrent DerivativeAssetsNoncurrent	12306000	usd
CY2023Q4	us-gaap	Deferred Compensation Plan Assets DeferredCompensationPlanAssets	11456000	usd
CY2022Q4	us-gaap	Deferred Compensation Plan Assets DeferredCompensationPlanAssets	12751000	usd
CY2023Q4	us-gaap	Hosting Arrangement Service Contract Implementation Cost Capitalized After Accumulated Amortization HostingArrangementServiceContractImplementationCostCapitalizedAfterAccumulatedAmortization	8589000	usd
CY2022Q4	us-gaap	Hosting Arrangement Service Contract Implementation Cost Capitalized After Accumulated Amortization HostingArrangementServiceContractImplementationCostCapitalizedAfterAccumulatedAmortization	6050000	usd
CY2023Q4	us-gaap	Capitalized Contract Cost Net Noncurrent CapitalizedContractCostNetNoncurrent	6879000	usd
CY2022Q4	us-gaap	Capitalized Contract Cost Net Noncurrent CapitalizedContractCostNetNoncurrent	6151000	usd
CY2023Q4	us-gaap	Debt Issuance Costs Line Of Credit Arrangements Net DebtIssuanceCostsLineOfCreditArrangementsNet	1956000	usd
CY2022Q4	us-gaap	Debt Issuance Costs Line Of Credit Arrangements Net DebtIssuanceCostsLineOfCreditArrangementsNet	781000	usd
CY2023Q4	us-gaap	Restricted Cash Noncurrent RestrictedCashNoncurrent	168000	usd
CY2022Q4	us-gaap	Restricted Cash Noncurrent RestrictedCashNoncurrent	26000	usd
CY2023Q4	us-gaap	Equity Securities Without Readily Determinable Fair Value Amount EquitySecuritiesWithoutReadilyDeterminableFairValueAmount	48000	usd
CY2022Q4	us-gaap	Equity Securities Without Readily Determinable Fair Value Amount EquitySecuritiesWithoutReadilyDeterminableFairValueAmount	20698000	usd
CY2023Q4	us-gaap	Other Assets Miscellaneous Noncurrent OtherAssetsMiscellaneousNoncurrent	8362000	usd
CY2022Q4	us-gaap	Other Assets Miscellaneous Noncurrent OtherAssetsMiscellaneousNoncurrent	10039000	usd
CY2023Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	116453000	usd
CY2022Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	113617000	usd
CY2023	us-gaap	Hosting Arrangement Service Contract Implementation Cost Expense Amortization HostingArrangementServiceContractImplementationCostExpenseAmortization	2600000	usd
CY2022	us-gaap	Hosting Arrangement Service Contract Implementation Cost Expense Amortization HostingArrangementServiceContractImplementationCostExpenseAmortization	2800000	usd
CY2021	us-gaap	Hosting Arrangement Service Contract Implementation Cost Expense Amortization HostingArrangementServiceContractImplementationCostExpenseAmortization	2400000	usd
CY2023Q4	us-gaap	Accrued Salaries Current AccruedSalariesCurrent	159530000	usd
CY2022Q4	us-gaap	Accrued Salaries Current AccruedSalariesCurrent	126338000	usd
CY2023Q4	us-gaap	Product Warranty Accrual Classified Current ProductWarrantyAccrualClassifiedCurrent	57089000	usd
CY2022Q4	us-gaap	Product Warranty Accrual Classified Current ProductWarrantyAccrualClassifiedCurrent	45503000	usd
CY2023Q4	us-gaap	Accrued Vacation Current AccruedVacationCurrent	29503000	usd
CY2022Q4	us-gaap	Accrued Vacation Current AccruedVacationCurrent	26396000	usd
CY2023Q4	us-gaap	Accrued Income Taxes Current AccruedIncomeTaxesCurrent	16341000	usd
CY2022Q4	us-gaap	Accrued Income Taxes Current AccruedIncomeTaxesCurrent	11472000	usd
CY2023Q4	us-gaap	Derivative Liabilities Current DerivativeLiabilitiesCurrent	14509000	usd
CY2022Q4	us-gaap	Derivative Liabilities Current DerivativeLiabilitiesCurrent	15604000	usd
CY2023Q4	us-gaap	Interest Payable Current InterestPayableCurrent	4514000	usd
CY2022Q4	us-gaap	Interest Payable Current InterestPayableCurrent	4793000	usd
CY2023Q4	us-gaap	Finance Lease Liability Current FinanceLeaseLiabilityCurrent	3953000	usd
CY2022Q4	us-gaap	Finance Lease Liability Current FinanceLeaseLiabilityCurrent	3758000	usd
CY2023Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	145980000	usd
CY2022Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	126918000	usd
CY2023Q4	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	431419000	usd
CY2022Q4	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	360782000	usd
CY2020Q4	us-gaap	Product Warranty Accrual Classified Current ProductWarrantyAccrualClassifiedCurrent	49868000	usd
CY2021	us-gaap	Product Warranty Expense ProductWarrantyExpense	17093000	usd
CY2021	us-gaap	Product Warranty Accrual Payments ProductWarrantyAccrualPayments	18942000	usd
CY2021Q4	us-gaap	Product Warranty Accrual Classified Current ProductWarrantyAccrualClassifiedCurrent	48019000	usd
CY2021Q4	us-gaap	Product Warranty Accrual Classified Current ProductWarrantyAccrualClassifiedCurrent	48019000	usd
CY2022	us-gaap	Product Warranty Expense ProductWarrantyExpense	17440000	usd
CY2022	us-gaap	Product Warranty Accrual Payments ProductWarrantyAccrualPayments	19956000	usd
CY2022Q4	us-gaap	Product Warranty Accrual Classified Current ProductWarrantyAccrualClassifiedCurrent	45503000	usd
CY2022Q4	us-gaap	Product Warranty Accrual Classified Current ProductWarrantyAccrualClassifiedCurrent	45503000	usd
CY2023	us-gaap	Product Warranty Expense ProductWarrantyExpense	31742000	usd
CY2023	us-gaap	Product Warranty Accrual Payments ProductWarrantyAccrualPayments	20156000	usd
CY2023Q4	us-gaap	Product Warranty Accrual Classified Current ProductWarrantyAccrualClassifiedCurrent	57089000	usd
CY2023Q4	us-gaap	Contract With Customer Liability ContractWithCustomerLiability	228460000	usd
CY2022Q4	us-gaap	Contract With Customer Liability ContractWithCustomerLiability	200235000	usd
CY2023Q4	us-gaap	Contract With Customer Liability Current ContractWithCustomerLiabilityCurrent	154419000	usd
CY2022Q4	us-gaap	Contract With Customer Liability Current ContractWithCustomerLiabilityCurrent	137899000	usd
CY2023Q4	us-gaap	Contract With Customer Liability Noncurrent ContractWithCustomerLiabilityNoncurrent	74041000	usd
CY2022Q4	us-gaap	Contract With Customer Liability Noncurrent ContractWithCustomerLiabilityNoncurrent	62336000	usd
CY2023Q4	us-gaap	Finance Lease Liability Noncurrent FinanceLeaseLiabilityNoncurrent	48192000	usd
CY2022Q4	us-gaap	Finance Lease Liability Noncurrent FinanceLeaseLiabilityNoncurrent	53176000	usd
CY2023Q4	us-gaap	Accrued Income Taxes Noncurrent AccruedIncomeTaxesNoncurrent	98259000	usd
CY2022Q4	us-gaap	Accrued Income Taxes Noncurrent AccruedIncomeTaxesNoncurrent	72644000	usd
CY2023Q4	us-gaap	Deferred Compensation Liability Classified Noncurrent DeferredCompensationLiabilityClassifiedNoncurrent	11444000	usd
CY2022Q4	us-gaap	Deferred Compensation Liability Classified Noncurrent DeferredCompensationLiabilityClassifiedNoncurrent	12535000	usd
CY2023Q4	cien	Other Obligations Noncurrent OtherObligationsNoncurrent	12512000	usd
CY2022Q4	cien	Other Obligations Noncurrent OtherObligationsNoncurrent	11980000	usd
CY2023Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	170407000	usd
CY2022Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	150335000	usd
CY2021	us-gaap	Oci Before Reclassifications Net Of Tax Attributable To Parent OciBeforeReclassificationsNetOfTaxAttributableToParent	36601000	usd
CY2021	us-gaap	Reclassification From Aoci Current Period Net Of Tax Attributable To Parent ReclassificationFromAociCurrentPeriodNetOfTaxAttributableToParent	804000	usd
CY2022	us-gaap	Oci Before Reclassifications Net Of Tax Attributable To Parent OciBeforeReclassificationsNetOfTaxAttributableToParent	-54034000	usd
CY2022	us-gaap	Reclassification From Aoci Current Period Net Of Tax Attributable To Parent ReclassificationFromAociCurrentPeriodNetOfTaxAttributableToParent	-6950000	usd
CY2023	us-gaap	Oci Before Reclassifications Net Of Tax Attributable To Parent OciBeforeReclassificationsNetOfTaxAttributableToParent	8417000	usd
CY2023	us-gaap	Reclassification From Aoci Current Period Net Of Tax Attributable To Parent ReclassificationFromAociCurrentPeriodNetOfTaxAttributableToParent	-461000	usd
CY2023Q4	cien	Lessee Operating Lease Area Of Property Leased LesseeOperatingLeaseAreaOfPropertyLeased	1100000	sqft
CY2023	cien	Lease Remaining Lease Term LeaseRemainingLeaseTerm	P9Y
CY2023	cien	Lessee Lease Renewal Term LesseeLeaseRenewalTerm	P10Y
CY2023	cien	Lessee Lease Termination Period LesseeLeaseTerminationPeriod	P4Y
CY2023Q4	us-gaap	Finance Lease Liability Noncurrent FinanceLeaseLiabilityNoncurrent	48192000	usd
CY2023Q4	cien	Lease Liability Noncurrent LeaseLiabilityNoncurrent	81451000	usd
CY2023Q4	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P4Y25D
CY2022Q4	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P3Y10M6D
CY2023Q4	us-gaap	Finance Lease Weighted Average Remaining Lease Term1 FinanceLeaseWeightedAverageRemainingLeaseTerm1	P8Y8M15D
CY2022Q4	us-gaap	Finance Lease Weighted Average Remaining Lease Term1 FinanceLeaseWeightedAverageRemainingLeaseTerm1	P9Y8M15D
CY2023Q4	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.0388
CY2022Q4	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.0297
CY2023Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	35140000	usd
CY2022Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	45108000	usd
CY2023Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	49914000	usd
CY2022Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	61317000	usd
CY2023Q4	us-gaap	Finance Lease Right Of Use Asset Before Accumulated Amortization FinanceLeaseRightOfUseAssetBeforeAccumulatedAmortization	67904000	usd
CY2022Q4	us-gaap	Finance Lease Right Of Use Asset Before Accumulated Amortization FinanceLeaseRightOfUseAssetBeforeAccumulatedAmortization	69247000	usd
CY2023Q4	us-gaap	Finance Lease Right Of Use Asset Accumulated Amortization FinanceLeaseRightOfUseAssetAccumulatedAmortization	30079000	usd
CY2022Q4	us-gaap	Finance Lease Right Of Use Asset Accumulated Amortization FinanceLeaseRightOfUseAssetAccumulatedAmortization	26266000	usd
CY2023Q4	us-gaap	Finance Lease Right Of Use Asset FinanceLeaseRightOfUseAsset	37825000	usd
CY2022Q4	us-gaap	Finance Lease Right Of Use Asset FinanceLeaseRightOfUseAsset	42981000	usd
CY2023Q4	cien	Lessee Operating Lease Right Of Use Asset Subleased Or Vacant LesseeOperatingLeaseRightOfUseAssetSubleasedOrVacant	7500000	usd
CY2023Q4	cien	Lessee Finance Lease Right Of Use Asset Subleased Or Vacant LesseeFinanceLeaseRightOfUseAssetSubleasedOrVacant	6000000	usd
CY2023	us-gaap	Operating Lease Cost OperatingLeaseCost	16080000	usd
CY2022	us-gaap	Operating Lease Cost OperatingLeaseCost	17966000	usd
CY2021	us-gaap	Operating Lease Cost OperatingLeaseCost	16602000	usd
CY2023	us-gaap	Finance Lease Right Of Use Asset Amortization FinanceLeaseRightOfUseAssetAmortization	4448000	usd
CY2022	us-gaap	Finance Lease Right Of Use Asset Amortization FinanceLeaseRightOfUseAssetAmortization	4592000	usd
CY2021	us-gaap	Finance Lease Right Of Use Asset Amortization FinanceLeaseRightOfUseAssetAmortization	4773000	usd
CY2023	us-gaap	Finance Lease Interest Expense FinanceLeaseInterestExpense	4069000	usd
CY2022	us-gaap	Finance Lease Interest Expense FinanceLeaseInterestExpense	4601000	usd
CY2021	us-gaap	Finance Lease Interest Expense FinanceLeaseInterestExpense	4882000	usd
CY2023	cien	Finance Lease Cost FinanceLeaseCost	8517000	usd
CY2022	cien	Finance Lease Cost FinanceLeaseCost	9193000	usd
CY2021	cien	Finance Lease Cost FinanceLeaseCost	9655000	usd
CY2023	us-gaap	Short Term Lease Cost ShortTermLeaseCost	910000	usd
CY2022	us-gaap	Short Term Lease Cost ShortTermLeaseCost	917000	usd
CY2021	us-gaap	Short Term Lease Cost ShortTermLeaseCost	1152000	usd
CY2023	us-gaap	Variable Lease Cost VariableLeaseCost	3421000	usd
CY2022	us-gaap	Variable Lease Cost VariableLeaseCost	5898000	usd
CY2021	us-gaap	Variable Lease Cost VariableLeaseCost	5690000	usd
CY2023	us-gaap	Lease Cost LeaseCost	28928000	usd
CY2022	us-gaap	Lease Cost LeaseCost	33974000	usd
CY2021	us-gaap	Lease Cost LeaseCost	33099000	usd
CY2023Q4	us-gaap	Finance Lease Weighted Average Discount Rate Percent FinanceLeaseWeightedAverageDiscountRatePercent	0.0756
CY2022Q4	us-gaap	Finance Lease Weighted Average Discount Rate Percent FinanceLeaseWeightedAverageDiscountRatePercent	0.0756
CY2023	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	68826000	usd
CY2022	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	29603000	usd
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-37445000	usd
CY2023	cien	Effective Income Tax Rate Reconciliation Uncertain Tax Positions Percent EffectiveIncomeTaxRateReconciliationUncertainTaxPositionsPercent	0.0172
CY2022	cien	Effective Income Tax Rate Reconciliation Uncertain Tax Positions Percent EffectiveIncomeTaxRateReconciliationUncertainTaxPositionsPercent	0.0162
CY2021	cien	Effective Income Tax Rate Reconciliation Uncertain Tax Positions Percent EffectiveIncomeTaxRateReconciliationUncertainTaxPositionsPercent	0.0063
CY2023	us-gaap	Effective Income Tax Rate Reconciliation Other Reconciling Items Percent EffectiveIncomeTaxRateReconciliationOtherReconcilingItemsPercent	-0.0089
CY2023Q4	us-gaap	Lessee Operating Lease Liability Payments Due Next Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths	18126000	usd
CY2023Q4	us-gaap	Finance Lease Liability Payments Due Next Twelve Months FinanceLeaseLiabilityPaymentsDueNextTwelveMonths	7640000	usd
CY2023Q4	cien	Lease Liability Payment Due Year One LeaseLiabilityPaymentDueYearOne	25766000	usd
CY2023Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	13568000	usd
CY2023Q4	us-gaap	Finance Lease Liability Payments Due Year Two FinanceLeaseLiabilityPaymentsDueYearTwo	7793000	usd
CY2023Q4	cien	Lease Liability Payment Due Year Two LeaseLiabilityPaymentDueYearTwo	21361000	usd
CY2023Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	9951000	usd
CY2023Q4	us-gaap	Finance Lease Liability Payments Due Year Three FinanceLeaseLiabilityPaymentsDueYearThree	7824000	usd
CY2023Q4	cien	Lease Liability Payment Due Year Three LeaseLiabilityPaymentDueYearThree	17775000	usd
CY2023Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	5563000	usd
CY2023Q4	us-gaap	Finance Lease Liability Payments Due Year Four FinanceLeaseLiabilityPaymentsDueYearFour	8095000	usd
CY2023Q4	cien	Lease Liability Payment Due Year Four LeaseLiabilityPaymentDueYearFour	13658000	usd
CY2023Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Five LesseeOperatingLeaseLiabilityPaymentsDueYearFive	1516000	usd
CY2023Q4	us-gaap	Finance Lease Liability Payments Due Year Five FinanceLeaseLiabilityPaymentsDueYearFive	8367000	usd
CY2023Q4	cien	Lease Liability Payment Due Year Five LeaseLiabilityPaymentDueYearFive	9883000	usd
CY2023Q4	us-gaap	Lessee Operating Lease Liability Payments Due After Year Five LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive	5796000	usd
CY2023Q4	us-gaap	Finance Lease Liability Payments Due After Year Five FinanceLeaseLiabilityPaymentsDueAfterYearFive	31435000	usd
CY2023Q4	cien	Lease Liability Payment Due After Year Five LeaseLiabilityPaymentDueAfterYearFive	37231000	usd
CY2023Q4	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	54520000	usd
CY2023Q4	us-gaap	Finance Lease Liability Payments Due FinanceLeaseLiabilityPaymentsDue	71154000	usd
CY2023Q4	cien	Lease Liability Payment Due LeaseLiabilityPaymentDue	125674000	usd
CY2023Q4	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	4606000	usd
CY2023Q4	us-gaap	Finance Lease Liability Undiscounted Excess Amount FinanceLeaseLiabilityUndiscountedExcessAmount	19009000	usd
CY2023Q4	cien	Lease Liability Undiscounted Excess Amount LeaseLiabilityUndiscountedExcessAmount	23615000	usd
CY2023Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	49914000	usd
CY2023Q4	us-gaap	Finance Lease Liability FinanceLeaseLiability	52145000	usd
CY2023Q4	cien	Lease Liability LeaseLiability	102059000	usd
CY2023Q4	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	16655000	usd
CY2023Q4	us-gaap	Finance Lease Liability Current FinanceLeaseLiabilityCurrent	3953000	usd
CY2023Q4	cien	Lease Liability Current LeaseLiabilityCurrent	20608000	usd
CY2023Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	33259000	usd
CY2023	us-gaap	Net Income Loss NetIncomeLoss	254827000	usd
CY2022	us-gaap	Net Income Loss NetIncomeLoss	152902000	usd
CY2021	us-gaap	Net Income Loss NetIncomeLoss	500196000	usd
CY2023	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	148971000	shares
CY2022	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	151208000	shares
CY2021	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	155279000	shares
CY2023	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	409000	shares
CY2022	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	985000	shares
CY2021	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	1464000	shares
CY2023	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	149380000	shares
CY2022	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	152193000	shares
CY2021	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	156743000	shares
CY2023	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.71
CY2022	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.01
CY2021	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	3.22
CY2023	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.71
CY2022	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.00
CY2021	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	3.19
CY2023	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	2675000	shares
CY2022	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	1370000	shares
CY2021	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	110000	shares
CY2021	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-156469000	usd
CY2023	us-gaap	Stock Repurchased During Period Shares StockRepurchasedDuringPeriodShares	14100000	shares
CY2023	us-gaap	Stock Repurchased During Period Value StockRepurchasedDuringPeriodValue	750000000	usd
CY2023	us-gaap	Treasury Stock Acquired Average Cost Per Share TreasuryStockAcquiredAverageCostPerShare	53.17
CY2023Q4	us-gaap	Stock Repurchase Program Remaining Authorized Repurchase Amount1 StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1	250000000	usd
CY2023Q4	cien	Net Exercise Tax NetExerciseTax	1500000	usd
CY2023	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	38500000	usd
CY2023	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	36537000	usd
CY2022	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	27479000	usd
CY2021	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	72603000	usd
CY2023	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	18860000	usd
CY2022	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	10289000	usd
CY2021	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	21400000	usd
CY2023	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	28281000	usd
CY2022	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	19337000	usd
CY2021	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	25021000	usd
CY2023	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	83678000	usd
CY2022	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	57105000	usd
CY2021	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	119024000	usd
CY2023	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-8010000	usd
CY2022	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-30032000	usd
CY2021	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-21942000	usd
CY2023	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-17354000	usd
CY2022	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	520000	usd
CY2021	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-11546000	usd
CY2023	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	10512000	usd
CY2022	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	2010000	usd
CY2021	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	-122981000	usd
CY2023	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-14852000	usd
CY2022	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-27502000	usd
CY2023	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	93682000	usd
CY2022	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	28784000	usd
CY2021	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	298514000	usd
CY2023	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	229971000	usd
CY2022	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	153721000	usd
CY2021	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	164237000	usd
CY2023	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	323653000	usd
CY2022	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	182505000	usd
CY2021	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	462751000	usd
CY2023	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.2100
CY2022	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.2100
CY2021	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.2100
CY2023	cien	Effective Income Tax Rate Reconciliation Intercompany Ip Restructuring Transaction Percent EffectiveIncomeTaxRateReconciliationIntercompanyIPRestructuringTransactionPercent	0
CY2022	cien	Effective Income Tax Rate Reconciliation Intercompany Ip Restructuring Transaction Percent EffectiveIncomeTaxRateReconciliationIntercompanyIPRestructuringTransactionPercent	0
CY2021	cien	Effective Income Tax Rate Reconciliation Intercompany Ip Restructuring Transaction Percent EffectiveIncomeTaxRateReconciliationIntercompanyIPRestructuringTransactionPercent	-0.2585
CY2023	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.0165
CY2022	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.0231
CY2021	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.0373
CY2023	us-gaap	Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential	-0.0009
CY2022	us-gaap	Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential	-0.0137
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential	0.0276
CY2023	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits Research EffectiveIncomeTaxRateReconciliationTaxCreditsResearch	0.1678
CY2022	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits Research EffectiveIncomeTaxRateReconciliationTaxCreditsResearch	0.2366
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits Research EffectiveIncomeTaxRateReconciliationTaxCreditsResearch	0.0799
CY2023	cien	Effective Income Tax Rate Reconciliation Nondeductible Expense Share Based Compensation Cost And Other Percent EffectiveIncomeTaxRateReconciliationNondeductibleExpenseShareBasedCompensationCostAndOtherPercent	0.0529
CY2022	cien	Effective Income Tax Rate Reconciliation Nondeductible Expense Share Based Compensation Cost And Other Percent EffectiveIncomeTaxRateReconciliationNondeductibleExpenseShareBasedCompensationCostAndOtherPercent	0.0526
CY2021	cien	Effective Income Tax Rate Reconciliation Nondeductible Expense Share Based Compensation Cost And Other Percent EffectiveIncomeTaxRateReconciliationNondeductibleExpenseShareBasedCompensationCostAndOtherPercent	0.0168
CY2023	us-gaap	Effective Income Tax Rate Reconciliation Fdii Percent EffectiveIncomeTaxRateReconciliationFdiiPercent	0
CY2022	us-gaap	Effective Income Tax Rate Reconciliation Fdii Percent EffectiveIncomeTaxRateReconciliationFdiiPercent	0
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Fdii Percent EffectiveIncomeTaxRateReconciliationFdiiPercent	0.0182
CY2023	us-gaap	Effective Income Tax Rate Reconciliation Gilti Percent EffectiveIncomeTaxRateReconciliationGiltiPercent	0.0508
CY2022	us-gaap	Effective Income Tax Rate Reconciliation Gilti Percent EffectiveIncomeTaxRateReconciliationGiltiPercent	0.0173
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Gilti Percent EffectiveIncomeTaxRateReconciliationGiltiPercent	0
CY2023	us-gaap	Effective Income Tax Rate Reconciliation Tax Exempt Income EffectiveIncomeTaxRateReconciliationTaxExemptIncome	0.0106
CY2022	us-gaap	Effective Income Tax Rate Reconciliation Tax Exempt Income EffectiveIncomeTaxRateReconciliationTaxExemptIncome	0.0190
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Tax Exempt Income EffectiveIncomeTaxRateReconciliationTaxExemptIncome	0
CY2023	cien	Effective Income Tax Rate Reconciliation Taxation On Foreign Inflation Percent EffectiveIncomeTaxRateReconciliationTaxationOnForeignInflationPercent	0.0134
CY2022	cien	Effective Income Tax Rate Reconciliation Taxation On Foreign Inflation Percent EffectiveIncomeTaxRateReconciliationTaxationOnForeignInflationPercent	0.0141
CY2021	cien	Effective Income Tax Rate Reconciliation Taxation On Foreign Inflation Percent EffectiveIncomeTaxRateReconciliationTaxationOnForeignInflationPercent	0.0016
CY2023	us-gaap	Effective Income Tax Rate Reconciliation Change In Enacted Tax Rate EffectiveIncomeTaxRateReconciliationChangeInEnactedTaxRate	-0.0371
CY2022	us-gaap	Effective Income Tax Rate Reconciliation Change In Enacted Tax Rate EffectiveIncomeTaxRateReconciliationChangeInEnactedTaxRate	0.0127
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Change In Enacted Tax Rate EffectiveIncomeTaxRateReconciliationChangeInEnactedTaxRate	-0.0433
CY2023	us-gaap	Effective Income Tax Rate Reconciliation Change In Deferred Tax Assets Valuation Allowance EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance	0.0944
CY2022	us-gaap	Effective Income Tax Rate Reconciliation Change In Deferred Tax Assets Valuation Allowance EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance	0.0835
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Change In Deferred Tax Assets Valuation Allowance EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance	0.0177
CY2023	cien	Effective Income Tax Rate Reconciliation Loss On Equity Transactions Percent EffectiveIncomeTaxRateReconciliationLossOnEquityTransactionsPercent	0.0172
CY2022	cien	Effective Income Tax Rate Reconciliation Loss On Equity Transactions Percent EffectiveIncomeTaxRateReconciliationLossOnEquityTransactionsPercent	0
CY2021	cien	Effective Income Tax Rate Reconciliation Loss On Equity Transactions Percent EffectiveIncomeTaxRateReconciliationLossOnEquityTransactionsPercent	0
CY2022	us-gaap	Effective Income Tax Rate Reconciliation Other Reconciling Items Percent EffectiveIncomeTaxRateReconciliationOtherReconcilingItemsPercent	0.0020
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Other Reconciling Items Percent EffectiveIncomeTaxRateReconciliationOtherReconcilingItemsPercent	0.0017
CY2023	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.2127
CY2022	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.1622
CY2021	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	-0.0809
CY2023	cien	Effective Income Tax Rate Reconciliation Intra Entity Transfer Of Foreign Intellectual Property Rights Amount EffectiveIncomeTaxRateReconciliationIntraEntityTransferOfForeignIntellectualPropertyRightsAmount	-119300000	usd
CY2023Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals DeferredTaxAssetsTaxDeferredExpenseReservesAndAccruals	82160000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals DeferredTaxAssetsTaxDeferredExpenseReservesAndAccruals	76839000	usd
CY2023Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Other DeferredTaxAssetsTaxDeferredExpenseOther	712098000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Other DeferredTaxAssetsTaxDeferredExpenseOther	690636000	usd
CY2023Q4	cien	Deferred Tax Asset Operating Loss And Tax Credit Carryforwards DeferredTaxAssetOperatingLossAndTaxCreditCarryforwards	197984000	usd
CY2022Q4	cien	Deferred Tax Asset Operating Loss And Tax Credit Carryforwards DeferredTaxAssetOperatingLossAndTaxCreditCarryforwards	154707000	usd
CY2023Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	6934000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	63902000	usd
CY2023Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	999176000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	986084000	usd
CY2023Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	189870000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	162076000	usd
CY2023Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	809306000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	824008000	usd
CY2020Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	95748000	usd
CY2021	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	22854000	usd
CY2021	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	654000	usd
CY2021	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	5510000	usd
CY2021	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	659000	usd
CY2021Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	77091000	usd
CY2022	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	4732000	usd
CY2022	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	3229000	usd
CY2022	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	2959000	usd
CY2022	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	1039000	usd
CY2022Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	80514000	usd
CY2023	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	9940000	usd
CY2023	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	625000	usd
CY2023	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	4960000	usd
CY2023	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	869000	usd
CY2023Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	93920000	usd
CY2023Q4	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued	7900000	usd
CY2022Q4	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued	5200000	usd
CY2023	us-gaap	Income Tax Examination Penalties And Interest Expense IncomeTaxExaminationPenaltiesAndInterestExpense	2700000	usd
CY2022	us-gaap	Income Tax Examination Penalties And Interest Expense IncomeTaxExaminationPenaltiesAndInterestExpense	1700000	usd
CY2021	us-gaap	Income Tax Examination Penalties And Interest Expense IncomeTaxExaminationPenaltiesAndInterestExpense	100000	usd
CY2023Q4	cien	Undistributed Earnings Of Foreign Subsidiaries Expected Repatriation Amount UndistributedEarningsOfForeignSubsidiariesExpectedRepatriationAmount	222000000	usd
CY2023Q4	us-gaap	Income Tax Reconciliation Repatriation Of Foreign Earnings IncomeTaxReconciliationRepatriationOfForeignEarnings	2500000	usd
CY2023Q4	us-gaap	Foreign Earnings Repatriated ForeignEarningsRepatriated	381000000	usd
CY2023Q4	us-gaap	Deferred Tax Liability Not Recognized Amount Of Unrecognized Deferred Tax Liability Undistributed Earnings Of Foreign Subsidiaries DeferredTaxLiabilityNotRecognizedAmountOfUnrecognizedDeferredTaxLiabilityUndistributedEarningsOfForeignSubsidiaries	30000000	usd
CY2023Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	189900000	usd
CY2020Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	151427000	usd
CY2021	cien	Valuation Allowance Deferred Tax Asset Additions ValuationAllowanceDeferredTaxAssetAdditions	17897000	usd
CY2021	cien	Valuation Allowance Deferred Tax Asset Deductions ValuationAllowanceDeferredTaxAssetDeductions	9690000	usd
CY2021Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	159634000	usd
CY2021Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	159634000	usd
CY2022	cien	Valuation Allowance Deferred Tax Asset Additions ValuationAllowanceDeferredTaxAssetAdditions	15245000	usd
CY2022	cien	Valuation Allowance Deferred Tax Asset Deductions ValuationAllowanceDeferredTaxAssetDeductions	12803000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	162076000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	162076000	usd
CY2023	cien	Valuation Allowance Deferred Tax Asset Additions ValuationAllowanceDeferredTaxAssetAdditions	28746000	usd
CY2023	cien	Valuation Allowance Deferred Tax Asset Deductions ValuationAllowanceDeferredTaxAssetDeductions	952000	usd
CY2023Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	189870000	usd
CY2022	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod	0	shares
CY2023	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod	0	shares
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod	0	shares
CY2022Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	32000	shares
CY2022Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	30.98
CY2023	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod	0	shares
CY2023	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice	0
CY2023	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	22000	shares
CY2023	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	33.98
CY2023	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod	3000	shares
CY2023	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures And Expirations In Period Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice	45.32
CY2023Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	7000	shares
CY2023Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	16.94
CY2023	us-gaap	Employee Service Share Based Compensation Allocation Of Recognized Period Costs Capitalized Amount EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount	413000	usd
CY2022	us-gaap	Employee Service Share Based Compensation Allocation Of Recognized Period Costs Capitalized Amount EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount	137000	usd
CY2021	us-gaap	Employee Service Share Based Compensation Allocation Of Recognized Period Costs Capitalized Amount EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount	-72000	usd
CY2023	us-gaap	Share Based Compensation ShareBasedCompensation	130455000	usd
CY2022	us-gaap	Share Based Compensation ShareBasedCompensation	105131000	usd
CY2021	us-gaap	Share Based Compensation ShareBasedCompensation	84336000	usd
CY2023Q4	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized	201000000	usd
CY2023Q4	us-gaap	Property Plant And Equipment And Finance Lease Right Of Use Asset After Accumulated Depreciation And Amortization PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization	280100000	usd
CY2023Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	35100000	usd
CY2023	us-gaap	Number Of Operating Segments NumberOfOperatingSegments	4	segment
CY2023Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	205627000	usd
CY2023Q4	us-gaap	Goodwill Goodwill	444765000	usd
CY2023Q4	cien	Maintenance Spares Inventory Net Non Current MaintenanceSparesInventoryNetNonCurrent	54042000	usd
CY2023	us-gaap	Selling And Marketing Expense SellingAndMarketingExpense	490804000	usd
CY2022	us-gaap	Selling And Marketing Expense SellingAndMarketingExpense	466565000	usd
CY2021	us-gaap	Selling And Marketing Expense SellingAndMarketingExpense	452214000	usd
CY2023	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	215284000	usd
CY2022	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	179382000	usd
CY2021	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	181874000	usd
CY2023	us-gaap	Restructuring Costs And Asset Impairment Charges RestructuringCostsAndAssetImpairmentCharges	23834000	usd
CY2022	us-gaap	Restructuring Costs And Asset Impairment Charges RestructuringCostsAndAssetImpairmentCharges	33824000	usd
CY2021	us-gaap	Restructuring Costs And Asset Impairment Charges RestructuringCostsAndAssetImpairmentCharges	29565000	usd
CY2023	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	37351000	usd
CY2022	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	32511000	usd
CY2021	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	23732000	usd
CY2023	us-gaap	Business Combination Acquisition Related Costs BusinessCombinationAcquisitionRelatedCosts	3474000	usd
CY2022	us-gaap	Business Combination Acquisition Related Costs BusinessCombinationAcquisitionRelatedCosts	598000	usd
CY2021	us-gaap	Business Combination Acquisition Related Costs BusinessCombinationAcquisitionRelatedCosts	2572000	usd
CY2023	cien	Interest And Other Income Loss Net InterestAndOtherIncomeLossNet	62008000	usd
CY2022	cien	Interest And Other Income Loss Net InterestAndOtherIncomeLossNet	6747000	usd
CY2021	cien	Interest And Other Income Loss Net InterestAndOtherIncomeLossNet	-1768000	usd
CY2023	us-gaap	Interest Expense InterestExpense	88026000	usd
CY2022	us-gaap	Interest Expense InterestExpense	47050000	usd
CY2021	us-gaap	Interest Expense InterestExpense	30837000	usd
CY2023	cien	Gain Loss On Extinguishment And Restructuring Of Debt GainLossOnExtinguishmentAndRestructuringOfDebt	-7874000	usd
CY2022	cien	Gain Loss On Extinguishment And Restructuring Of Debt GainLossOnExtinguishmentAndRestructuringOfDebt	0	usd
CY2021	cien	Gain Loss On Extinguishment And Restructuring Of Debt GainLossOnExtinguishmentAndRestructuringOfDebt	0	usd
CY2023	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	68826000	usd
CY2022	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	29603000	usd
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-37445000	usd
CY2023	us-gaap	Net Income Loss NetIncomeLoss	254827000	usd
CY2022	us-gaap	Net Income Loss NetIncomeLoss	152902000	usd
CY2021	us-gaap	Net Income Loss NetIncomeLoss	500196000	usd
CY2023Q4	cien	Property Plant And Equipment Finance Lease Right Of Use Asset After Accumulated Depreciation And Amortization And Operating Lease Right Of Use Asset PropertyPlantAndEquipmentFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortizationAndOperatingLeaseRightOfUseAsset	315287000	usd
CY2022Q4	cien	Property Plant And Equipment Finance Lease Right Of Use Asset After Accumulated Depreciation And Amortization And Operating Lease Right Of Use Asset PropertyPlantAndEquipmentFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortizationAndOperatingLeaseRightOfUseAsset	312887000	usd
CY2023Q4	us-gaap	Purchase Obligation PurchaseObligation	1700000000	usd
CY2023Q4	ecd	Non Rule10b51 Arr Adopted Flag NonRule10b51ArrAdoptedFlag	false
CY2023Q4	ecd	Rule10b51 Arr Adopted Flag Rule10b51ArrAdoptedFlag	true
CY2023Q4	ecd	Rule10b51 Arr Trmntd Flag Rule10b51ArrTrmntdFlag	false
CY2023Q4	ecd	Non Rule10b51 Arr Trmntd Flag NonRule10b51ArrTrmntdFlag	false

Files In Submission

Name	View Source	Status
0000936395-23-000044-index-headers.html	Edgar Link	pending
0000936395-23-000044-index.html	Edgar Link	pending
0000936395-23-000044.txt	Edgar Link	pending
0000936395-23-000044-xbrl.zip	Edgar Link	pending
cien-20231028.htm	Edgar Link	pending
cien-20231028.xsd	Edgar Link	pending
cien-20231028_g1.jpg	Edgar Link	pending
ex103-2017planxrsuagreemen.htm	Edgar Link	pending
ex21120231028-subsidiaries.htm	Edgar Link	pending
ex2312023102810kpwcconsent.htm	Edgar Link	pending
ex3112023102810kceocert302.htm	Edgar Link	pending
ex3122023102810kcfocert302.htm	Edgar Link	pending
ex3212023102810kceocert906.htm	Edgar Link	pending
ex3222023102810kcfocert906.htm	Edgar Link	pending
ex971-clawbackpolicy.htm	Edgar Link	pending
Financial_Report.xlsx	Edgar Link	pending
MetaLinks.json	Edgar Link	pending
R1.htm	Edgar Link	pending
R10.htm	Edgar Link	pending
R100.htm	Edgar Link	pending
R101.htm	Edgar Link	pending
R102.htm	Edgar Link	pending
R103.htm	Edgar Link	pending
R104.htm	Edgar Link	pending
R105.htm	Edgar Link	pending
R106.htm	Edgar Link	pending
R107.htm	Edgar Link	pending
R108.htm	Edgar Link	pending
R109.htm	Edgar Link	pending
R11.htm	Edgar Link	pending
R110.htm	Edgar Link	pending
R111.htm	Edgar Link	pending
R112.htm	Edgar Link	pending
R113.htm	Edgar Link	pending
R114.htm	Edgar Link	pending
R115.htm	Edgar Link	pending
cien-20231028_cal.xml	Edgar Link	unprocessable
cien-20231028_pre.xml	Edgar Link	unprocessable
cien-20231028_lab.xml	Edgar Link	unprocessable
FilingSummary.xml	Edgar Link	unprocessable
cien-20231028_htm.xml	Edgar Link	completed
R116.htm	Edgar Link	pending
R117.htm	Edgar Link	pending
R118.htm	Edgar Link	pending
R119.htm	Edgar Link	pending
R12.htm	Edgar Link	pending
R13.htm	Edgar Link	pending
R14.htm	Edgar Link	pending
R15.htm	Edgar Link	pending
R16.htm	Edgar Link	pending
R17.htm	Edgar Link	pending
R18.htm	Edgar Link	pending
R19.htm	Edgar Link	pending
R2.htm	Edgar Link	pending
R20.htm	Edgar Link	pending
R21.htm	Edgar Link	pending
R22.htm	Edgar Link	pending
R23.htm	Edgar Link	pending
R24.htm	Edgar Link	pending
R25.htm	Edgar Link	pending
R26.htm	Edgar Link	pending
R27.htm	Edgar Link	pending
R28.htm	Edgar Link	pending
R29.htm	Edgar Link	pending
R3.htm	Edgar Link	pending
R30.htm	Edgar Link	pending
R31.htm	Edgar Link	pending
R32.htm	Edgar Link	pending
R33.htm	Edgar Link	pending
R34.htm	Edgar Link	pending
R35.htm	Edgar Link	pending
R36.htm	Edgar Link	pending
R37.htm	Edgar Link	pending
R38.htm	Edgar Link	pending
R39.htm	Edgar Link	pending
R4.htm	Edgar Link	pending
R40.htm	Edgar Link	pending
R41.htm	Edgar Link	pending
R42.htm	Edgar Link	pending
R43.htm	Edgar Link	pending
R44.htm	Edgar Link	pending
R45.htm	Edgar Link	pending
R46.htm	Edgar Link	pending
R47.htm	Edgar Link	pending
R48.htm	Edgar Link	pending
R49.htm	Edgar Link	pending
R5.htm	Edgar Link	pending
R50.htm	Edgar Link	pending
R51.htm	Edgar Link	pending
R52.htm	Edgar Link	pending
R53.htm	Edgar Link	pending
R54.htm	Edgar Link	pending
R55.htm	Edgar Link	pending
R56.htm	Edgar Link	pending
R57.htm	Edgar Link	pending
R58.htm	Edgar Link	pending
R59.htm	Edgar Link	pending
R6.htm	Edgar Link	pending
R60.htm	Edgar Link	pending
R61.htm	Edgar Link	pending
R62.htm	Edgar Link	pending
R63.htm	Edgar Link	pending
R64.htm	Edgar Link	pending
R65.htm	Edgar Link	pending
R66.htm	Edgar Link	pending
R67.htm	Edgar Link	pending
R68.htm	Edgar Link	pending
R69.htm	Edgar Link	pending
R7.htm	Edgar Link	pending
R70.htm	Edgar Link	pending
R71.htm	Edgar Link	pending
R72.htm	Edgar Link	pending
R73.htm	Edgar Link	pending
R74.htm	Edgar Link	pending
R75.htm	Edgar Link	pending
R76.htm	Edgar Link	pending
R77.htm	Edgar Link	pending
R78.htm	Edgar Link	pending
R79.htm	Edgar Link	pending
R8.htm	Edgar Link	pending
R80.htm	Edgar Link	pending
R81.htm	Edgar Link	pending
R82.htm	Edgar Link	pending
R83.htm	Edgar Link	pending
R84.htm	Edgar Link	pending
R85.htm	Edgar Link	pending
R86.htm	Edgar Link	pending
R87.htm	Edgar Link	pending
R88.htm	Edgar Link	pending
R89.htm	Edgar Link	pending
R9.htm	Edgar Link	pending
R90.htm	Edgar Link	pending
R91.htm	Edgar Link	pending
R92.htm	Edgar Link	pending
R93.htm	Edgar Link	pending
R94.htm	Edgar Link	pending
R95.htm	Edgar Link	pending
R96.htm	Edgar Link	pending
R97.htm	Edgar Link	pending
R98.htm	Edgar Link	pending
R99.htm	Edgar Link	pending
R9999.htm	Edgar Link	pending
report.css	Edgar Link	pending
Show.js	Edgar Link	pending
cien-20231028_def.xml	Edgar Link	unprocessable

Create your account

Find Stocks Worth Researching

Deeply Understand Businesses

Value Businesses Intelligently

$CIEN
CIENA CORP Stock $cien

2023 Q4 Form 10-K Financial Statement

#000093639523000044 Filed on December 15, 2023

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$CIEN CIENA CORP Stock $cien

2023 Q4 Form 10-K Financial Statement

#000093639523000044 Filed on December 15, 2023

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$CIEN
CIENA CORP Stock $cien