$INFN
Infinera Corp Stock $infn

$infn Overview Financials Valuation SEC Filings Company Website

2021 Q4 Form 10-K Financial Statement

#000113863922000033 Filed on February 23, 2022

Income Statement

Concept	2021 Q4	2021 Q3	2021
Revenue	$400.3M	$355.8M	$1.425B
YoY Change	13.22%	4.59%	5.13%
Cost Of Revenue	$257.8M	$237.7M	$927.2M
YoY Change	13.37%	2.49%	-2.07%
Gross Profit	$142.5M	$118.1M	$498.0M
YoY Change	12.94%	9.07%	21.82%
Gross Profit Margin	35.59%	33.19%	34.94%
Selling, General & Admin	$67.46M	$61.52M	$254.2M
YoY Change	19.4%	7.68%	5.13%
% of Gross Profit	47.35%	52.1%	51.06%
Research & Development	$75.78M	$76.65M	$299.9M
YoY Change	17.13%	16.78%	12.9%
% of Gross Profit	53.19%	64.9%	60.22%
Depreciation & Amortization	$23.35M	$12.00M	$47.10M
YoY Change	-9.5%	10.09%	-9.94%
% of Gross Profit	16.39%	10.16%	9.46%
Operating Expenses	$152.6M	$149.1M	$585.5M
YoY Change	14.81%	10.26%	3.81%
Operating Profit	-$10.14M	-$30.98M	-$87.48M
YoY Change	49.68%	15.08%	-43.63%
Interest Expense	-$12.25M	$12.62M	$49.10M
YoY Change	-4.29%	-0.18%	5.07%
% of Operating Profit
Other Income/Expense, Net	-$20.48M	-$17.36M	-$71.31M
YoY Change	902.4%	127.86%	56.77%
Pretax Income	-$30.62M	-$48.34M	-$158.8M
YoY Change	247.22%	39.96%	-20.88%
Income Tax	$2.447M	$5.455M	$12.00M
% Of Pretax Income
Net Earnings	-$33.07M	-$53.79M	-$170.8M
YoY Change	233.21%	49.86%	-17.39%
Net Earnings / Revenue	-8.26%	-15.12%	-11.98%
Basic Earnings Per Share	-$0.16	-$0.26	-$0.82
Diluted Earnings Per Share	-$0.16	-$0.26	-$0.82
COMMON SHARES
Basic Shares Outstanding	210.8M shares	209.2M shares	207.4M shares
Diluted Shares Outstanding		209.2M shares	207.4M shares

Balance Sheet

Concept	2021 Q4	2021 Q3	2021
SHORT-TERM ASSETS
Cash & Short-Term Investments	$190.6M	$203.5M	$190.6M
YoY Change	-36.04%	3.55%	-36.04%
Cash & Equivalents	$190.6M	$203.5M	$190.6M
Short-Term Investments
Other Short-Term Assets	$150.8M	$143.0M	$150.8M
YoY Change	-13.86%	-12.41%	-13.86%
Inventory	$291.4M	$289.6M	$291.4M
Prepaid Expenses
Receivables	$359.0M	$273.4M	$359.0M
Other Receivables	$0.00	$0.00	$0.00
Total Short-Term Assets	$991.8M	$909.5M	$991.8M
YoY Change	-6.6%	-1.78%	-6.61%
LONG-TERM ASSETS
Property, Plant & Equipment	$205.6M	$214.2M	$205.6M
YoY Change	-7.41%	48.87%	-7.41%
Goodwill	$255.8M	$264.8M
YoY Change	-6.45%	3.35%
Intangibles	$86.57M	$97.21M
YoY Change	-30.68%	-26.67%
Long-Term Investments
YoY Change
Other Assets	$38.48M	$37.72M	$47.55M
YoY Change	6.12%	19.03%	-5.48%
Total Long-Term Assets	$595.5M	$623.9M	$595.5M
YoY Change	-11.21%	-3.34%	-11.2%
TOTAL ASSETS
Total Short-Term Assets	$991.8M	$909.5M	$991.8M
Total Long-Term Assets	$595.5M	$623.9M	$595.5M
Total Assets	$1.587B	$1.533B	$1.587B
YoY Change	-8.39%	-2.42%	-8.39%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$216.4M	$173.3M	$216.4M
YoY Change	23.12%	10.54%	23.1%
Accrued Expenses	$147.0M	$145.4M	$213.7M
YoY Change	-2.34%	-11.47%	21.46%
Deferred Revenue	$137.3M	$107.8M
YoY Change	3.04%	22.38%
Short-Term Debt	$33.00K	$483.0K	$33.00K
YoY Change	-99.97%	-98.06%
Long-Term Debt Due	$500.0K	$1.900M	$1.791M
YoY Change	-99.51%	-92.75%	-98.26%
Total Short-Term Liabilities	$612.5M	$520.2M	$612.5M
YoY Change	-3.38%	3.97%	-3.38%
LONG-TERM LIABILITIES
Long-Term Debt	$476.8M	$468.8M	$477.7M
YoY Change	6.91%	-9.09%	6.78%
Other Long-Term Liabilities	$64.77M	$84.76M	$170.9M
YoY Change	-31.75%	11.67%	-22.62%
Total Long-Term Liabilities	$541.6M	$553.6M	$648.6M
YoY Change	0.12%	-6.43%	-2.93%
TOTAL LIABILITIES
Total Short-Term Liabilities	$612.5M	$520.2M	$612.5M
Total Long-Term Liabilities	$541.6M	$553.6M	$648.6M
Total Liabilities	$1.154B	$1.074B	$1.263B
YoY Change	-1.76%	-1.67%	-3.27%
SHAREHOLDERS EQUITY
Retained Earnings	-$1.698B	-$1.665B
YoY Change	11.18%	9.73%
Common Stock	$2.026B	$2.016B
YoY Change	3.1%	6.72%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$323.8M	$340.3M	$323.8M
YoY Change
Total Liabilities & Shareholders Equity	$1.587B	$1.533B	$1.587B
YoY Change	-8.39%	-2.42%	-8.39%

Cashflow Statement

Concept	2021 Q4	2021 Q3	2021
OPERATING ACTIVITIES
Net Income	-$33.07M	-$53.79M	-$170.8M
YoY Change	233.21%	49.86%	-17.39%
Depreciation, Depletion And Amortization	$23.35M	$12.00M	$47.10M
YoY Change	-9.5%	10.09%	-9.94%
Cash From Operating Activities	$1.369M	-$13.17M	$28.13M
YoY Change	-97.38%	-63.8%	-125.05%
INVESTING ACTIVITIES
Capital Expenditures	-$9.065M	-$6.525M	$41.38M
YoY Change	-23.82%	-19.44%	6.08%
Acquisitions			$0.00
YoY Change
Other Investing Activities	$0.00		$0.00
YoY Change
Cash From Investing Activities	-$9.065M	-$6.525M	-$41.38M
YoY Change	-23.82%	-19.44%	6.08%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net			$16.50M
YoY Change			-3.37%
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	-4.815M	3.814M	-$101.5M
YoY Change	-108.39%	-89.49%	-130.39%
NET CHANGE
Cash From Operating Activities	1.369M	-13.17M	$28.13M
Cash From Investing Activities	-9.065M	-6.525M	-$41.38M
Cash From Financing Activities	-4.815M	3.814M	-$101.5M
Net Change In Cash	-12.51M	-15.89M	-$112.9M
YoY Change	-112.81%	93.73%	-161.81%
FREE CASH FLOW
Cash From Operating Activities	$1.369M	-$13.17M	$28.13M
Capital Expenditures	-$9.065M	-$6.525M	$41.38M
Free Cash Flow	$10.43M	-$6.650M	-$13.25M
YoY Change	-83.72%	-76.5%	-91.24%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2021	dei	Entity Central Index Key EntityCentralIndexKey	0001138639
CY2021	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2021
CY2021	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
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CY2020Q4	us-gaap	Operating Lease Liability Current Statement Of Financial Position Extensible List OperatingLeaseLiabilityCurrentStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2021-01-31#AccountsPayableAndOtherAccruedLiabilitiesCurrent
CY2020Q4	us-gaap	Finance Lease Liability Current Statement Of Financial Position Extensible List FinanceLeaseLiabilityCurrentStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2021-01-31#AccountsPayableAndOtherAccruedLiabilitiesCurrent
CY2021Q4	us-gaap	Finance Lease Liability Current Statement Of Financial Position Extensible List FinanceLeaseLiabilityCurrentStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2021-01-31#AccountsPayableAndOtherAccruedLiabilitiesCurrent
CY2021Q4	us-gaap	Finance Lease Liability Noncurrent Statement Of Financial Position Extensible List FinanceLeaseLiabilityNoncurrentStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2021-01-31#OtherLiabilitiesNoncurrent
CY2021	dei	Entity Address State Or Province EntityAddressStateOrProvince	CA
CY2021	dei	Entity Address City Or Town EntityAddressCityOrTown	San Jose
CY2020Q4	us-gaap	Finance Lease Liability Noncurrent Statement Of Financial Position Extensible List FinanceLeaseLiabilityNoncurrentStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2021-01-31#OtherLiabilitiesNoncurrent
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CY2021Q4	us-gaap	Revenue Remaining Performance Obligation Expected Timing Of Satisfaction Period1 RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1
CY2021	dei	Document Type DocumentType	10-K
CY2021	dei	Document Annual Report DocumentAnnualReport	true
CY2021	dei	Document Period End Date DocumentPeriodEndDate	2021-12-25
CY2021	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-25
CY2021	dei	Document Transition Report DocumentTransitionReport	false
CY2021	dei	Entity File Number EntityFileNumber	001-33486
CY2021	dei	Entity Registrant Name EntityRegistrantName	Infinera Corp
CY2021	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	DE
CY2021	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	77-0560433
CY2021	dei	Entity Address Address Line1 EntityAddressAddressLine1	6373 San Ignacio Avenue
CY2021	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	95119
CY2021	dei	City Area Code CityAreaCode	408
CY2021	dei	Local Phone Number LocalPhoneNumber	572-5200
CY2021	dei	Security12b Title Security12bTitle	Common shares, par value $0.001 per share
CY2021	dei	Trading Symbol TradingSymbol	INFN
CY2021	dei	Security Exchange Name SecurityExchangeName	NASDAQ
CY2021	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	Yes
CY2021	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
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CY2021	dei	Auditor Firm AuditorFirmId	42
CY2021	dei	Auditor Name AuditorName	Ernst & Young LLP
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CY2020	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	112240000	USD
CY2019	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	126351000	USD
CY2021	infn	Amortization Of Intangible Assets Operating Expenses AmortizationOfIntangibleAssetsOperatingExpenses	17455000	USD
CY2020	infn	Amortization Of Intangible Assets Operating Expenses AmortizationOfIntangibleAssetsOperatingExpenses	18581000	USD
CY2019	infn	Amortization Of Intangible Assets Operating Expenses AmortizationOfIntangibleAssetsOperatingExpenses	27280000	USD
CY2021	infn	Business Combination Acquisition And Integration Related Costs BusinessCombinationAcquisitionAndIntegrationRelatedCosts	614000	USD
CY2020	infn	Business Combination Acquisition And Integration Related Costs BusinessCombinationAcquisitionAndIntegrationRelatedCosts	13346000	USD
CY2019	infn	Business Combination Acquisition And Integration Related Costs BusinessCombinationAcquisitionAndIntegrationRelatedCosts	42271000	USD
CY2021	infn	Restructuring Charges Operating Expenses RestructuringChargesOperatingExpenses	13246000	USD
CY2020	infn	Restructuring Charges Operating Expenses RestructuringChargesOperatingExpenses	24586000	USD
CY2019	infn	Restructuring Charges Operating Expenses RestructuringChargesOperatingExpenses	40851000	USD
CY2021	us-gaap	Operating Expenses OperatingExpenses	585453000	USD
CY2020	us-gaap	Operating Expenses OperatingExpenses	563991000	USD
CY2019	us-gaap	Operating Expenses OperatingExpenses	676153000	USD
CY2021	us-gaap	Operating Income Loss OperatingIncomeLoss	-87479000	USD
CY2020	us-gaap	Operating Income Loss OperatingIncomeLoss	-155199000	USD
CY2019	us-gaap	Operating Income Loss OperatingIncomeLoss	-350230000	USD
CY2021	us-gaap	Investment Income Interest InvestmentIncomeInterest	455000	USD
CY2020	us-gaap	Investment Income Interest InvestmentIncomeInterest	118000	USD
CY2019	us-gaap	Investment Income Interest InvestmentIncomeInterest	1139000	USD
CY2021	us-gaap	Interest Expense InterestExpense	49099000	USD
CY2020	us-gaap	Interest Expense InterestExpense	46728000	USD
CY2019	us-gaap	Interest Expense InterestExpense	31657000	USD
CY2021	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-22667000	USD
CY2020	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	1121000	USD
CY2019	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-2907000	USD
CY2021	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-71311000	USD
CY2020	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-45489000	USD
CY2019	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-33425000	USD
CY2021	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-158790000	USD
CY2020	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-200688000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-383655000	USD
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	11988000	USD
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	2963000	USD
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	6035000	USD
CY2021	us-gaap	Net Income Loss NetIncomeLoss	-170778000	USD
CY2020	us-gaap	Net Income Loss NetIncomeLoss	-206723000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	-386618000	USD
CY2021	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.82
CY2020	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-1.10
CY2019	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-2.16
CY2021	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.82
CY2020	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-1.10
CY2019	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-2.16
CY2021	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	207377000	shares
CY2020	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	188216000	shares
CY2019	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	178984000	shares
CY2021	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	207377000	shares
CY2020	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	188216000	shares
CY2019	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	178984000	shares
CY2021	us-gaap	Net Income Loss NetIncomeLoss	-170778000	USD
CY2020	us-gaap	Net Income Loss NetIncomeLoss	-206723000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	-386618000	USD
CY2021	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Before Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentBeforeTax	0	USD
CY2020	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Before Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentBeforeTax	0	USD
CY2019	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Before Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentBeforeTax	91000	USD
CY2021	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent	-8561000	USD
CY2020	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent	29040000	USD
CY2019	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent	-9376000	USD
CY2021	us-gaap	Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Net Of Tax OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax	12580000	USD
CY2020	us-gaap	Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Net Of Tax OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax	-8183000	USD
CY2019	us-gaap	Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Net Of Tax OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax	-1692000	USD
CY2021	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax	-3383000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax	-1884000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax	-1638000	USD
CY2021	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	7402000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	22741000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-9339000	USD
CY2021	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-163376000	USD
CY2020	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-183982000	USD
CY2019	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-395957000	USD
CY2018Q4	us-gaap	Stockholders Equity StockholdersEquity	703821000	USD
CY2019	us-gaap	Stock Issued During Period Value Employee Stock Purchase Plan StockIssuedDuringPeriodValueEmployeeStockPurchasePlan	12052000	USD
CY2019	us-gaap	Stock Repurchased During Period Value StockRepurchasedDuringPeriodValue	425000	USD
CY2019	us-gaap	Stock Issued During Period Value Restricted Stock Award Net Of Forfeitures StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures	3000	USD
CY2019	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	43344000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-9339000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	-386618000	USD
CY2019Q4	us-gaap	Stockholders Equity StockholdersEquity	386535000	USD
CY2020	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	92864000	USD
CY2020	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	3995000	USD
CY2020	us-gaap	Treasury Stock Retired Cost Method Amount TreasuryStockRetiredCostMethodAmount	2255000	USD
CY2020	us-gaap	Stock Issued During Period Value Employee Stock Purchase Plan StockIssuedDuringPeriodValueEmployeeStockPurchasePlan	15346000	USD
CY2020	us-gaap	Stock Repurchased During Period Value StockRepurchasedDuringPeriodValue	2013000	USD
CY2020	us-gaap	Stock Issued During Period Value Restricted Stock Award Net Of Forfeitures StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures	5000	USD
CY2020	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	48642000	USD
CY2020	us-gaap	Adjustments To Additional Paid In Capital Convertible Debt With Conversion Feature AdjustmentsToAdditionalPaidInCapitalConvertibleDebtWithConversionFeature	67797000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	22741000	USD
CY2020	us-gaap	Net Income Loss NetIncomeLoss	-206723000	USD
CY2020Q4	us-gaap	Stockholders Equity StockholdersEquity	426284000	USD
CY2021	us-gaap	Stock Issued During Period Value Employee Stock Purchase Plan StockIssuedDuringPeriodValueEmployeeStockPurchasePlan	16166000	USD
CY2021	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	332000	USD
CY2021	us-gaap	Stock Issued During Period Value Restricted Stock Award Net Of Forfeitures StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures	8000	USD
CY2021	us-gaap	Stock Repurchased During Period Value StockRepurchasedDuringPeriodValue	7178000	USD
CY2021	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	51535000	USD
CY2021	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	7402000	USD
CY2021	us-gaap	Net Income Loss NetIncomeLoss	-170778000	USD
CY2021Q4	us-gaap	Stockholders Equity StockholdersEquity	323771000	USD
CY2021	us-gaap	Net Income Loss NetIncomeLoss	-170778000	USD
CY2020	us-gaap	Net Income Loss NetIncomeLoss	-206723000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	-386618000	USD
CY2021	us-gaap	Depreciation And Amortization DepreciationAndAmortization	83583000	USD
CY2020	us-gaap	Depreciation And Amortization DepreciationAndAmortization	100140000	USD
CY2019	us-gaap	Depreciation And Amortization DepreciationAndAmortization	119824000	USD
CY2021	us-gaap	Restructuring Costs RestructuringCosts	6805000	USD
CY2020	us-gaap	Restructuring Costs RestructuringCosts	5471000	USD
CY2019	us-gaap	Restructuring Costs RestructuringCosts	13937000	USD
CY2021	us-gaap	Amortization Of Financing Costs And Discounts AmortizationOfFinancingCostsAndDiscounts	32455000	USD
CY2020	us-gaap	Amortization Of Financing Costs And Discounts AmortizationOfFinancingCostsAndDiscounts	28115000	USD
CY2019	us-gaap	Amortization Of Financing Costs And Discounts AmortizationOfFinancingCostsAndDiscounts	19162000	USD
CY2021	infn	Operating Lease Expense Operating Activities OperatingLeaseExpenseOperatingActivities	14993000	USD
CY2020	infn	Operating Lease Expense Operating Activities OperatingLeaseExpenseOperatingActivities	18556000	USD
CY2019	infn	Operating Lease Expense Operating Activities OperatingLeaseExpenseOperatingActivities	31141000	USD
CY2021	us-gaap	Share Based Compensation ShareBasedCompensation	51812000	USD
CY2020	us-gaap	Share Based Compensation ShareBasedCompensation	49461000	USD
CY2019	us-gaap	Share Based Compensation ShareBasedCompensation	43294000	USD
CY2021	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-4147000	USD
CY2020	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-4438000	USD
CY2019	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-178000	USD
CY2021	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	45783000	USD
CY2020	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	-32150000	USD
CY2019	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	35395000	USD
CY2021	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	28022000	USD
CY2020	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	-71424000	USD
CY2019	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	42840000	USD
CY2021	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	424000	USD
CY2020	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	36127000	USD
CY2019	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	93621000	USD
CY2021	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	32304000	USD
CY2020	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	-93411000	USD
CY2019	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	83272000	USD
CY2021	us-gaap	Increase Decrease In Other Accounts Payable And Accrued Liabilities IncreaseDecreaseInOtherAccountsPayableAndAccruedLiabilities	39283000	USD
CY2020	us-gaap	Increase Decrease In Other Accounts Payable And Accrued Liabilities IncreaseDecreaseInOtherAccountsPayableAndAccruedLiabilities	-107704000	USD
CY2019	us-gaap	Increase Decrease In Other Accounts Payable And Accrued Liabilities IncreaseDecreaseInOtherAccountsPayableAndAccruedLiabilities	54658000	USD
CY2021	us-gaap	Increase Decrease In Contract With Customer Liability IncreaseDecreaseInContractWithCustomerLiability	7753000	USD
CY2020	us-gaap	Increase Decrease In Contract With Customer Liability IncreaseDecreaseInContractWithCustomerLiability	21910000	USD
CY2019	us-gaap	Increase Decrease In Contract With Customer Liability IncreaseDecreaseInContractWithCustomerLiability	25658000	USD
CY2021	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	28128000	USD
CY2020	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	-112300000	USD
CY2019	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	-167350000	USD
CY2021	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	0	USD
CY2020	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	0	USD
CY2019	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	1499000	USD
CY2021	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	0	USD
CY2020	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	0	USD
CY2019	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	25085000	USD
CY2021	us-gaap	Proceeds From Convertible Debt ProceedsFromConvertibleDebt	0	USD
CY2021	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	0	USD
CY2020	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	0	USD
CY2019	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	10000000	USD
CY2021	us-gaap	Proceeds From Sale And Maturity Of Other Investments ProceedsFromSaleAndMaturityOfOtherInvestments	0	USD
CY2020	us-gaap	Proceeds From Sale And Maturity Of Other Investments ProceedsFromSaleAndMaturityOfOtherInvestments	0	USD
CY2019	us-gaap	Proceeds From Sale And Maturity Of Other Investments ProceedsFromSaleAndMaturityOfOtherInvestments	1009000	USD
CY2021	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	41379000	USD
CY2020	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	39009000	USD
CY2019	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	30202000	USD
CY2021	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-41379000	USD
CY2020	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-39009000	USD
CY2019	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-12609000	USD
CY2021	us-gaap	Payments Of Stock Issuance Costs PaymentsOfStockIssuanceCosts	3380000	USD
CY2021	us-gaap	Proceeds From Other Equity ProceedsFromOtherEquity	0	USD
CY2020	us-gaap	Proceeds From Other Equity ProceedsFromOtherEquity	92916000	USD
CY2019	us-gaap	Proceeds From Other Equity ProceedsFromOtherEquity	0	USD
CY2020	us-gaap	Proceeds From Convertible Debt ProceedsFromConvertibleDebt	194500000	USD
CY2019	us-gaap	Proceeds From Convertible Debt ProceedsFromConvertibleDebt	0	USD
CY2021	us-gaap	Proceeds From Issuance Of Secured Debt ProceedsFromIssuanceOfSecuredDebt	0	USD
CY2020	us-gaap	Proceeds From Issuance Of Secured Debt ProceedsFromIssuanceOfSecuredDebt	0	USD
CY2019	us-gaap	Proceeds From Issuance Of Secured Debt ProceedsFromIssuanceOfSecuredDebt	8584000	USD
CY2021	us-gaap	Proceeds From Short Term Debt ProceedsFromShortTermDebt	0	USD
CY2020	us-gaap	Proceeds From Short Term Debt ProceedsFromShortTermDebt	0	USD
CY2019	us-gaap	Proceeds From Short Term Debt ProceedsFromShortTermDebt	24310000	USD
CY2021	us-gaap	Proceeds From Long Term Lines Of Credit ProceedsFromLongTermLinesOfCredit	0	USD
CY2020	us-gaap	Proceeds From Long Term Lines Of Credit ProceedsFromLongTermLinesOfCredit	55000000	USD
CY2019	us-gaap	Proceeds From Long Term Lines Of Credit ProceedsFromLongTermLinesOfCredit	48125000	USD
CY2021	infn	Repayment Of Third Party Manufacturing Funding RepaymentOfThirdPartyManufacturingFunding	24610000	USD
CY2020	infn	Repayment Of Third Party Manufacturing Funding RepaymentOfThirdPartyManufacturingFunding	5346000	USD
CY2019	infn	Repayment Of Third Party Manufacturing Funding RepaymentOfThirdPartyManufacturingFunding	0	USD
CY2021	us-gaap	Repayments Of Long Term Lines Of Credit RepaymentsOfLongTermLinesOfCredit	77000000	USD
CY2020	us-gaap	Repayments Of Long Term Lines Of Credit RepaymentsOfLongTermLinesOfCredit	8000000	USD
CY2019	us-gaap	Repayments Of Long Term Lines Of Credit RepaymentsOfLongTermLinesOfCredit	20000000	USD
CY2021	us-gaap	Repayments Of Secured Debt RepaymentsOfSecuredDebt	350000	USD
CY2020	us-gaap	Repayments Of Secured Debt RepaymentsOfSecuredDebt	233000	USD
CY2019	us-gaap	Repayments Of Secured Debt RepaymentsOfSecuredDebt	300000	USD
CY2021	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	0	USD
CY2020	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	2455000	USD
CY2019	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	273000	USD
CY2021	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	1631000	USD
CY2020	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	1587000	USD
CY2019	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	163000	USD
CY2021	infn	Payment Of Term License Obligation PaymentOfTermLicenseObligation	7272000	USD
CY2020	infn	Payment Of Term License Obligation PaymentOfTermLicenseObligation	5692000	USD
CY2019	infn	Payment Of Term License Obligation PaymentOfTermLicenseObligation	0	USD
CY2021	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	16497000	USD
CY2020	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	17072000	USD
CY2019	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	12053000	USD
CY2021	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	7178000	USD
CY2020	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	2013000	USD
CY2019	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	426000	USD
CY2021	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-101544000	USD
CY2020	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	334162000	USD
CY2019	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	71910000	USD
CY2021	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	1933000	USD
CY2020	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	-267000	USD
CY2019	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	-1491000	USD
CY2021	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-112862000	USD
CY2020	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	182586000	USD
CY2019	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-109540000	USD
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	315383000	USD
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	132797000	USD
CY2018Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	242337000	USD
CY2021Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	202521000	USD
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	315383000	USD
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	132797000	USD
CY2021	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	18703000	USD
CY2020	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	5039000	USD
CY2019	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	16944000	USD
CY2021	us-gaap	Interest Paid Net InterestPaidNet	18261000	USD
CY2020	us-gaap	Interest Paid Net InterestPaidNet	15638000	USD
CY2019	us-gaap	Interest Paid Net InterestPaidNet	9564000	USD
CY2021	infn	Transfer Of Inventory To Fixed Assets TransferOfInventoryToFixedAssets	2279000	USD
CY2020	infn	Transfer Of Inventory To Fixed Assets TransferOfInventoryToFixedAssets	1083000	USD
CY2019	infn	Transfer Of Inventory To Fixed Assets TransferOfInventoryToFixedAssets	2961000	USD
CY2021	us-gaap	Loans Assumed1 LoansAssumed1	0	USD
CY2020	us-gaap	Loans Assumed1 LoansAssumed1	0	USD
CY2019	us-gaap	Loans Assumed1 LoansAssumed1	6960000	USD
CY2021	infn	Unpaid Debt Issuancecosts UnpaidDebtIssuancecosts	0	USD
CY2020	infn	Unpaid Debt Issuancecosts UnpaidDebtIssuancecosts	0	USD
CY2019	infn	Unpaid Debt Issuancecosts UnpaidDebtIssuancecosts	2493000	USD
CY2021	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	9011000	USD
CY2020	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	0	USD
CY2019	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	3838000	USD
CY2021	infn	Term Licenses Incurred But Not Yet Paid TermLicensesIncurredButNotYetPaid	9339000	USD
CY2020	infn	Term Licenses Incurred But Not Yet Paid TermLicensesIncurredButNotYetPaid	12478000	USD
CY2019	infn	Term Licenses Incurred But Not Yet Paid TermLicensesIncurredButNotYetPaid	0	USD
CY2021Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	190611000	USD
CY2020Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	298014000	USD
CY2019Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	109201000	USD
CY2021Q4	us-gaap	Restricted Cash And Cash Equivalents At Carrying Value RestrictedCashAndCashEquivalentsAtCarryingValue	2840000	USD
CY2020Q4	us-gaap	Restricted Cash And Cash Equivalents At Carrying Value RestrictedCashAndCashEquivalentsAtCarryingValue	3293000	USD
CY2019Q4	us-gaap	Restricted Cash And Cash Equivalents At Carrying Value RestrictedCashAndCashEquivalentsAtCarryingValue	4339000	USD
CY2021Q4	us-gaap	Restricted Cash And Cash Equivalents Noncurrent RestrictedCashAndCashEquivalentsNoncurrent	9070000	USD
CY2020Q4	us-gaap	Restricted Cash And Cash Equivalents Noncurrent RestrictedCashAndCashEquivalentsNoncurrent	14076000	USD
CY2019Q4	us-gaap	Restricted Cash And Cash Equivalents Noncurrent RestrictedCashAndCashEquivalentsNoncurrent	19257000	USD
CY2021Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	202521000	USD
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	315383000	USD
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	132797000	USD
CY2021	us-gaap	Use Of Estimates UseOfEstimates	<div style="margin-top:9pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-style:italic;font-weight:700;line-height:120%">Use of Estimates</span></div><div style="margin-top:5pt;text-indent:36pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:120%">The preparation of consolidated financial statements in conformity with U.S. GAAP requires management to make certain estimates, assumptions and judgments that can affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities as of the date of the consolidated financial statements, as well as the reported amounts of revenue and expenses during the reporting periods. Significant estimates, assumptions and judgements made by management include revenue recognition, inventory valuation, and accounting for income taxes. Other less significant estimates, assumptions and judgments made by management include stock-based compensation, employee benefit and pension plans, manufacturing partner and supplier liabilities, allowances for sales returns, allowances for credit losses, useful life of intangibles and property, plant and equipment, impairment loss related to lease abandonment, accrued warranty, operating and finance lease liabilities, restructuring and other related costs, fair value measurement of the debt component of the convertible senior notes, and loss contingencies. The Company bases its assumptions on historical experience and also on assumptions that it believes are reasonable. Actual results could differ materially from those estimates. The Company expects uncertainties around its key accounting estimates to continue to evolve depending on the duration and degree of impact associated with the outbreak of a novel strain of the coronavirus (“COVID-19”). These estimates may change as new events occur and additional information emerges, and such changes are recognized or disclosed in the Company's consolidated financial statements.</span></div>
CY2021	infn	Contract With Customer Contractual Support Period ContractWithCustomerContractualSupportPeriod	P1Y
CY2021	infn	Sharebased Compensation Arrangement By Sharebased Payment Award Stock Plan Offering Period SharebasedCompensationArrangementBySharebasedPaymentAwardStockPlanOfferingPeriod	P6M
CY2021	infn	Annual Expected Cash Dividend Yield AnnualExpectedCashDividendYield	0
CY2021	us-gaap	Advertising Expense AdvertisingExpense	1600000	USD
CY2020	us-gaap	Advertising Expense AdvertisingExpense	1300000	USD
CY2019	us-gaap	Advertising Expense AdvertisingExpense	1500000	USD
CY2021	infn	Foreign Currency Transaction Gain Loss ForeignCurrencyTransactionGainLoss	-17200000	USD
CY2020	infn	Foreign Currency Transaction Gain Loss ForeignCurrencyTransactionGainLoss	-200000	USD
CY2019	infn	Foreign Currency Transaction Gain Loss ForeignCurrencyTransactionGainLoss	-3700000	USD
CY2021Q4	infn	Reserve For Sales Returns ReserveForSalesReturns	800000	USD
CY2020Q4	infn	Reserve For Sales Returns ReserveForSalesReturns	2400000	USD
CY2019Q4	infn	Reserve For Sales Returns ReserveForSalesReturns	3500000	USD
CY2021	us-gaap	Concentration Risk Credit Risk ConcentrationRiskCreditRisk	<div style="margin-top:9pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-style:italic;font-weight:700;line-height:120%">Concentration of Risk</span></div><div style="margin-top:5pt;text-indent:36pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:120%">Financial instruments that are potentially subject to concentrations of credit risk consist primarily of cash, restricted cash, foreign exchange contracts and accounts receivable.</span></div><div style="margin-top:5pt;text-indent:36pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:120%">The risk with respect to foreign exchange contracts is mitigated by entering into these contracts with a large high-quality financial institution and the Company monitors the creditworthiness of the counterparty consistently.</span></div><div style="margin-top:5pt;text-indent:36pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:120%">The risk with respect to accounts receivable is mitigated by ongoing credit evaluations that the Company performs on its customers. As the Company continues to expand its sales internationally, it may experience increased levels of customer credit risk associated with those regions. Collateral is generally not required for accounts receivable but may be used in the future to mitigate credit risk associated with customers located in certain geographical regions.</span></div><div style="margin-top:5pt;text-indent:36pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:120%">As of December 25, 2021, no customer accounted for over 10% of the Company's accounts receivable balance, net on the consolidated balance sheets. As of December 26, 2020, one customer accounted for over 10% of the Company's accounts receivable balance, net on the consolidated balance sheets.</span></div><div style="margin-top:5pt;text-indent:36pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:120%">One customer accounted for approximately 11% and 13% of the Company's revenue in 2020 and 2019, respectively. No other customers accounted for 10% or more of the Company's revenue in 2020 and 2019. No customer accounted for 10% or more of the Company's revenue in 2021.</span></div><div style="margin-top:5pt;text-indent:36pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:120%">The Company depends on sole source or limited source suppliers for several key components and raw materials. The Company generally purchases these sole source or limited source components and raw materials through standard purchase orders and does not have long-term contracts with many of these limited-source suppliers. While the Company seeks to maintain sufficient reserve stock of such components and raw materials, the Company’s business and results of operations could be adversely affected if any of its sole source or limited source suppliers suffer from capacity constraints, lower than expected yields, deployment delays, work stoppages or any other reduction or disruption in output.</span></div>
CY2021	infn	Software Warranty Period SoftwareWarrantyPeriod	P90D
CY2021Q4	us-gaap	Lessee Operating Lease Renewal Term LesseeOperatingLeaseRenewalTerm	P6Y
CY2021	infn	Restructuringand Related Costs Term RestructuringandRelatedCostsTerm	P4Y
CY2021	us-gaap	Operating Lease Expense OperatingLeaseExpense	25500000	USD
CY2020	us-gaap	Operating Lease Expense OperatingLeaseExpense	34000000	USD
CY2019	us-gaap	Operating Lease Expense OperatingLeaseExpense	41500000	USD
CY2021	infn	Operating Lease Accelerated Rent Expense OperatingLeaseAcceleratedRentExpense	6300000	USD
CY2020	infn	Operating Lease Accelerated Rent Expense OperatingLeaseAcceleratedRentExpense	9900000	USD
CY2019	infn	Operating Lease Accelerated Rent Expense OperatingLeaseAcceleratedRentExpense	15900000	USD
CY2021Q4	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	16500000	USD
CY2021Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	54300000	USD
CY2020Q4	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	14900000	USD
CY2020Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	76100000	USD
CY2021	us-gaap	Finance Lease Right Of Use Asset Amortization FinanceLeaseRightOfUseAssetAmortization	960000	USD
CY2020	us-gaap	Finance Lease Right Of Use Asset Amortization FinanceLeaseRightOfUseAssetAmortization	733000	USD
CY2019	us-gaap	Finance Lease Right Of Use Asset Amortization FinanceLeaseRightOfUseAssetAmortization	339000	USD
CY2021	us-gaap	Finance Lease Interest Expense FinanceLeaseInterestExpense	190000	USD
CY2020	us-gaap	Finance Lease Interest Expense FinanceLeaseInterestExpense	185000	USD
CY2019	us-gaap	Finance Lease Interest Expense FinanceLeaseInterestExpense	126000	USD
CY2021	us-gaap	Lease Cost LeaseCost	1150000	USD
CY2020	us-gaap	Lease Cost LeaseCost	918000	USD
CY2019	us-gaap	Lease Cost LeaseCost	465000	USD
CY2021Q4	us-gaap	Finance Lease Liability Current FinanceLeaseLiabilityCurrent	1291000	USD
CY2020Q4	us-gaap	Finance Lease Liability Current FinanceLeaseLiabilityCurrent	1138000	USD
CY2021Q4	us-gaap	Finance Lease Liability Noncurrent FinanceLeaseLiabilityNoncurrent	954000	USD
CY2020Q4	us-gaap	Finance Lease Liability Noncurrent FinanceLeaseLiabilityNoncurrent	1383000	USD
CY2021Q4	us-gaap	Finance Lease Liability FinanceLeaseLiability	2245000	USD
CY2020Q4	us-gaap	Finance Lease Liability FinanceLeaseLiability	2521000	USD
CY2021Q4	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	90887000	USD
CY2021Q4	us-gaap	Finance Lease Liability Payments Due FinanceLeaseLiabilityPaymentsDue	2337000	USD
CY2021Q4	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	20018000	USD
CY2021Q4	us-gaap	Finance Lease Liability Undiscounted Excess Amount FinanceLeaseLiabilityUndiscountedExcessAmount	92000	USD
CY2021Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	70869000	USD
CY2021Q4	us-gaap	Finance Lease Liability FinanceLeaseLiability	2245000	USD
CY2021Q4	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P5Y11M1D
CY2021Q4	us-gaap	Finance Lease Weighted Average Remaining Lease Term1 FinanceLeaseWeightedAverageRemainingLeaseTerm1	P1Y8M4D
CY2021Q4	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.0918
CY2021Q4	us-gaap	Finance Lease Weighted Average Discount Rate Percent FinanceLeaseWeightedAverageDiscountRatePercent	0.0704
CY2021	us-gaap	Operating Lease Payments OperatingLeasePayments	23477000	USD
CY2021	us-gaap	Finance Lease Interest Payment On Liability FinanceLeaseInterestPaymentOnLiability	1632000	USD
CY2021	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	3070000	USD
CY2021	us-gaap	Right Of Use Asset Obtained In Exchange For Finance Lease Liability RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability	1208000	USD
CY2021Q4	us-gaap	Capitalized Contract Cost Net CapitalizedContractCostNet	700000	USD
CY2020Q4	us-gaap	Capitalized Contract Cost Net CapitalizedContractCostNet	0	USD
CY2021	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	1425205000	USD
CY2020	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	1355596000	USD
CY2019	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	1298865000	USD
CY2021	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	1425205000	USD
CY2020	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	1355596000	USD
CY2019	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	1298865000	USD
CY2021	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	1425205000	USD
CY2020	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	1355596000	USD
CY2019	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	1298865000	USD
CY2021Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	358954000	USD
CY2020Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	319428000	USD
CY2021Q4	us-gaap	Contract With Customer Asset Net ContractWithCustomerAssetNet	49052000	USD
CY2020Q4	us-gaap	Contract With Customer Asset Net ContractWithCustomerAssetNet	51583000	USD
CY2021Q4	us-gaap	Contract With Customer Liability ContractWithCustomerLiability	168909000	USD
CY2020Q4	us-gaap	Contract With Customer Liability ContractWithCustomerLiability	163056000	USD
CY2021	us-gaap	Contract With Customer Liability Revenue Recognized ContractWithCustomerLiabilityRevenueRecognized	88100000	USD
CY2020	us-gaap	Contract With Customer Liability Revenue Recognized ContractWithCustomerLiabilityRevenueRecognized	85200000	USD
CY2021Q4	us-gaap	Revenue Remaining Performance Obligation RevenueRemainingPerformanceObligation	679856000	USD
CY2021Q4	us-gaap	Revenue Remaining Performance Obligation RevenueRemainingPerformanceObligation	51634000	USD
CY2021Q4	us-gaap	Revenue Remaining Performance Obligation RevenueRemainingPerformanceObligation	21591000	USD
CY2021Q4	us-gaap	Revenue Remaining Performance Obligation RevenueRemainingPerformanceObligation	4497000	USD
CY2021Q4	us-gaap	Revenue Remaining Performance Obligation RevenueRemainingPerformanceObligation	2354000	USD
CY2021Q4	us-gaap	Revenue Remaining Performance Obligation RevenueRemainingPerformanceObligation	3128000	USD
CY2021Q4	us-gaap	Revenue Remaining Performance Obligation RevenueRemainingPerformanceObligation	763060000	USD
CY2021	infn	Operating Lease Accelerated Rent Expense OperatingLeaseAcceleratedRentExpense	6300000	USD
CY2020	infn	Operating Lease Accelerated Rent Expense OperatingLeaseAcceleratedRentExpense	9900000	USD
CY2021Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	202500000	USD
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	315400000	USD
CY2021Q4	us-gaap	Restricted Cash Noncurrent RestrictedCashNoncurrent	900000	USD
CY2020Q4	us-gaap	Restricted Cash Noncurrent RestrictedCashNoncurrent	900000	USD
CY2021	us-gaap	Derivative Instruments Not Designated As Hedging Instruments Gain Loss Net DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet	900000	USD
CY2020	us-gaap	Derivative Instruments Not Designated As Hedging Instruments Gain Loss Net DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet	300000	USD
CY2019	us-gaap	Derivative Instruments Not Designated As Hedging Instruments Gain Loss Net DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet	500000	USD
CY2020Q4	us-gaap	Goodwill Goodwill	273426000	USD
CY2021	us-gaap	Goodwill Foreign Currency Translation Gain Loss GoodwillForeignCurrencyTranslationGainLoss	-17638000	USD
CY2021Q4	us-gaap	Goodwill Goodwill	255788000	USD
CY2021Q4	us-gaap	Goodwill Impaired Accumulated Impairment Loss GoodwillImpairedAccumulatedImpairmentLoss	0	USD
CY2021Q4	us-gaap	Intangible Assets Gross Excluding Goodwill IntangibleAssetsGrossExcludingGoodwill	340339000	USD
CY2021Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	253765000	USD
CY2021Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	86574000	USD
CY2020Q4	us-gaap	Intangible Assets Gross Excluding Goodwill IntangibleAssetsGrossExcludingGoodwill	354383000	USD
CY2020Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	229501000	USD
CY2020Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	124882000	USD
CY2021	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	37100000	USD
CY2020	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	47800000	USD
CY2019	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	59900000	USD
CY2021Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	86574000	USD
CY2021Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Next Twelve Months FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths	38293000	USD
CY2021Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Two FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo	23463000	USD
CY2021Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Three FiniteLivedIntangibleAssetsAmortizationExpenseYearThree	9025000	USD
CY2021Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Four FiniteLivedIntangibleAssetsAmortizationExpenseYearFour	9025000	USD
CY2021Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Five FiniteLivedIntangibleAssetsAmortizationExpenseYearFive	6768000	USD
CY2021Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense After Year Five FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive	0	USD
CY2020Q4	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	2912000	USD
CY2021	infn	Accounts Receivable Allowancefor Credit Loss Additions AccountsReceivableAllowanceforCreditLossAdditions	822000	USD
CY2021	us-gaap	Allowance For Doubtful Accounts Receivable Write Offs AllowanceForDoubtfulAccountsReceivableWriteOffs	2378000	USD
CY2021	infn	Allowance For Doubtful Accounts Receivable Others AllowanceForDoubtfulAccountsReceivableOthers	-52000	USD
CY2021Q4	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	1304000	USD
CY2021Q4	us-gaap	Inventory Raw Materials InventoryRawMaterials	39379000	USD
CY2020Q4	us-gaap	Inventory Raw Materials InventoryRawMaterials	34693000	USD
CY2021Q4	us-gaap	Inventory Work In Process InventoryWorkInProcess	53924000	USD
CY2020Q4	us-gaap	Inventory Work In Process InventoryWorkInProcess	55835000	USD
CY2021Q4	us-gaap	Inventory Finished Goods InventoryFinishedGoods	198064000	USD
CY2020Q4	us-gaap	Inventory Finished Goods InventoryFinishedGoods	178779000	USD
CY2021Q4	us-gaap	Inventory Net InventoryNet	291367000	USD
CY2020Q4	us-gaap	Inventory Net InventoryNet	269307000	USD
CY2021Q4	us-gaap	Property Plant And Equipment And Finance Lease Right Of Use Asset Before Accumulated Depreciation And Amortization PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetBeforeAccumulatedDepreciationAndAmortization	475330000	USD
CY2020Q4	us-gaap	Property Plant And Equipment And Finance Lease Right Of Use Asset Before Accumulated Depreciation And Amortization PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetBeforeAccumulatedDepreciationAndAmortization	534389000	USD
CY2021Q4	us-gaap	Property Plant And Equipment And Finance Lease Right Of Use Asset Accumulated Depreciation And Amortization PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAccumulatedDepreciationAndAmortization	315112000	USD
CY2020Q4	us-gaap	Property Plant And Equipment And Finance Lease Right Of Use Asset Accumulated Depreciation And Amortization PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAccumulatedDepreciationAndAmortization	381256000	USD
CY2021Q4	us-gaap	Property Plant And Equipment And Finance Lease Right Of Use Asset After Accumulated Depreciation And Amortization PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization	160218000	USD
CY2020Q4	us-gaap	Property Plant And Equipment And Finance Lease Right Of Use Asset After Accumulated Depreciation And Amortization PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization	153133000	USD
CY2021Q4	infn	Loss Contingency Related To Non Cancelable Purchase Commitments LossContingencyRelatedToNonCancelablePurchaseCommitments	26481000	USD
CY2020Q4	infn	Loss Contingency Related To Non Cancelable Purchase Commitments LossContingencyRelatedToNonCancelablePurchaseCommitments	18848000	USD
CY2021Q4	us-gaap	Taxes Payable Current TaxesPayableCurrent	43308000	USD
CY2020Q4	us-gaap	Taxes Payable Current TaxesPayableCurrent	45884000	USD
CY2021Q4	us-gaap	Restructuring Reserve Current RestructuringReserveCurrent	8610000	USD
CY2020Q4	us-gaap	Restructuring Reserve Current RestructuringReserveCurrent	9292000	USD
CY2021Q4	infn	Lessee Leases Current LesseeLeasesCurrent	17792000	USD
CY2020Q4	infn	Lessee Leases Current LesseeLeasesCurrent	16023000	USD
CY2021Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	50838000	USD
CY2020Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	60503000	USD
CY2021Q4	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	147029000	USD
CY2020Q4	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	150550000	USD
CY2021	us-gaap	Depreciation Depreciation	47100000	USD
CY2020	us-gaap	Depreciation Depreciation	52300000	USD
CY2019	us-gaap	Depreciation Depreciation	60000000	USD
CY2019Q4	us-gaap	Restructuring Reserve RestructuringReserve	29403000	USD
CY2020	us-gaap	Restructuring Charges RestructuringCharges	28732000	USD
CY2020	us-gaap	Payments For Restructuring PaymentsForRestructuring	42195000	USD
CY2020	us-gaap	Restructuring Reserve Settled Without Cash2 RestructuringReserveSettledWithoutCash2	5469000	USD
CY2020Q4	us-gaap	Restructuring Reserve RestructuringReserve	10471000	USD
CY2021	us-gaap	Restructuring Charges RestructuringCharges	14777000	USD
CY2021	us-gaap	Payments For Restructuring PaymentsForRestructuring	9561000	USD
CY2021	us-gaap	Restructuring Reserve Settled Without Cash2 RestructuringReserveSettledWithoutCash2	6805000	USD
CY2021Q4	us-gaap	Restructuring Reserve RestructuringReserve	8882000	USD
CY2019	us-gaap	Oci Before Reclassifications Net Of Tax Attributable To Parent OciBeforeReclassificationsNetOfTaxAttributableToParent	-10977000	USD
CY2019	us-gaap	Reclassification From Aoci Current Period Net Of Tax Attributable To Parent ReclassificationFromAociCurrentPeriodNetOfTaxAttributableToParent	-1638000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-9339000	USD
CY2020	us-gaap	Oci Before Reclassifications Net Of Tax Attributable To Parent OciBeforeReclassificationsNetOfTaxAttributableToParent	20857000	USD
CY2020	us-gaap	Reclassification From Aoci Current Period Net Of Tax Attributable To Parent ReclassificationFromAociCurrentPeriodNetOfTaxAttributableToParent	-1884000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	22741000	USD
CY2021	us-gaap	Oci Before Reclassifications Net Of Tax Attributable To Parent OciBeforeReclassificationsNetOfTaxAttributableToParent	4019000	USD
CY2021	us-gaap	Reclassification From Aoci Current Period Net Of Tax Attributable To Parent ReclassificationFromAociCurrentPeriodNetOfTaxAttributableToParent	-3383000	USD
CY2021	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	7402000	USD
CY2021	us-gaap	Net Income Loss NetIncomeLoss	-170778000	USD
CY2020	us-gaap	Net Income Loss NetIncomeLoss	-206723000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	-386618000	USD
CY2021	us-gaap	Weighted Average Number Of Share Outstanding Basic And Diluted WeightedAverageNumberOfShareOutstandingBasicAndDiluted	207377000	shares
CY2020	us-gaap	Weighted Average Number Of Share Outstanding Basic And Diluted WeightedAverageNumberOfShareOutstandingBasicAndDiluted	188216000	shares
CY2019	us-gaap	Weighted Average Number Of Share Outstanding Basic And Diluted WeightedAverageNumberOfShareOutstandingBasicAndDiluted	178984000	shares
CY2021	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	-0.82
CY2020	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	-1.10
CY2019	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	-2.16
CY2021	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	16768000	shares
CY2020	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	19779000	shares
CY2019	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	15607000	shares
CY2021Q4	us-gaap	Long Term Debt Current LongTermDebtCurrent	500000	USD
CY2021Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	476800000	USD
CY2021Q4	us-gaap	Debt Instrument Carrying Amount DebtInstrumentCarryingAmount	610300000	USD
CY2020Q4	us-gaap	Long Term Debt Current LongTermDebtCurrent	102000000.0	USD
CY2020Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	446000000.0	USD
CY2020Q4	us-gaap	Debt Instrument Carrying Amount DebtInstrumentCarryingAmount	712500000	USD
CY2021Q4	us-gaap	Interest Expense Debt InterestExpenseDebt	44856000	USD
CY2020	us-gaap	Interest Expense Debt InterestExpenseDebt	39560000	USD
CY2019	us-gaap	Interest Expense Debt InterestExpenseDebt	27314000	USD
CY2021Q4	us-gaap	Share Price SharePrice	9.55
CY2021Q4	us-gaap	Debt Instrument Convertible If Converted Value In Excess Of Principal DebtInstrumentConvertibleIfConvertedValueInExcessOfPrincipal	49400000	USD
CY2021Q4	us-gaap	Share Price SharePrice	9.55
CY2021Q4	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	90887000	USD
CY2021Q4	us-gaap	Lessee Operating Lease Liability Payments Due Next Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths	22201000	USD
CY2021Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	15496000	USD
CY2021Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	13371000	USD
CY2021Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	12383000	USD
CY2021Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Five LesseeOperatingLeaseLiabilityPaymentsDueYearFive	9717000	USD
CY2021Q4	us-gaap	Lessee Operating Lease Liability Payments Due After Year Five LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive	17719000	USD
CY2021Q4	us-gaap	Finance Lease Liability Payments Due FinanceLeaseLiabilityPaymentsDue	2337000	USD
CY2021Q4	us-gaap	Finance Lease Liability Payments Due Next Twelve Months FinanceLeaseLiabilityPaymentsDueNextTwelveMonths	1346000	USD
CY2021Q4	us-gaap	Finance Lease Liability Payments Due Year Two FinanceLeaseLiabilityPaymentsDueYearTwo	814000	USD
CY2021Q4	us-gaap	Finance Lease Liability Payments Due Year Three FinanceLeaseLiabilityPaymentsDueYearThree	177000	USD
CY2021Q4	us-gaap	Finance Lease Liability Payments Due Year Four FinanceLeaseLiabilityPaymentsDueYearFour	0	USD
CY2021Q4	us-gaap	Finance Lease Liability Payments Due Year Five FinanceLeaseLiabilityPaymentsDueYearFive	0	USD
CY2021Q4	us-gaap	Finance Lease Liability Payments Due After Year Five FinanceLeaseLiabilityPaymentsDueAfterYearFive	0	USD
CY2021Q4	us-gaap	Purchase Obligation PurchaseObligation	591540000	USD
CY2021Q4	us-gaap	Purchase Obligation Due In Next Twelve Months PurchaseObligationDueInNextTwelveMonths	562965000	USD
CY2021Q4	us-gaap	Purchase Obligation Due In Second Year PurchaseObligationDueInSecondYear	27844000	USD
CY2021Q4	us-gaap	Purchase Obligation Due In Third Year PurchaseObligationDueInThirdYear	702000	USD
CY2021Q4	us-gaap	Purchase Obligation Due In Fourth Year PurchaseObligationDueInFourthYear	29000	USD
CY2021Q4	us-gaap	Purchase Obligation Due In Fifth Year PurchaseObligationDueInFifthYear	0	USD
CY2021Q4	us-gaap	Purchase Obligation Due After Fifth Year PurchaseObligationDueAfterFifthYear	0	USD
CY2021Q4	us-gaap	Contractual Obligation ContractualObligation	1348815000	USD
CY2021Q4	us-gaap	Contractual Obligation Due In Next Twelve Months ContractualObligationDueInNextTwelveMonths	600846000	USD
CY2021Q4	us-gaap	Contractual Obligation Due In Second Year ContractualObligationDueInSecondYear	58488000	USD
CY2021Q4	us-gaap	Contractual Obligation Due In Third Year ContractualObligationDueInThirdYear	437133000	USD
CY2021Q4	us-gaap	Contractual Obligation Due In Fourth Year ContractualObligationDueInFourthYear	17412000	USD
CY2021Q4	us-gaap	Contractual Obligation Due In Fifth Year ContractualObligationDueInFifthYear	14717000	USD
CY2021Q4	us-gaap	Contractual Obligation Due After Fifth Year ContractualObligationDueAfterFifthYear	220219000	USD
CY2021Q4	us-gaap	Asset Retirement Obligations Noncurrent AssetRetirementObligationsNoncurrent	5100000	USD
CY2020Q4	us-gaap	Asset Retirement Obligations Noncurrent AssetRetirementObligationsNoncurrent	5000000	USD
CY2021Q4	us-gaap	Asset Retirement Obligations Noncurrent AssetRetirementObligationsNoncurrent	5100000	USD
CY2020Q4	us-gaap	Product Warranty Accrual ProductWarrantyAccrual	40708000	USD
CY2019Q4	us-gaap	Product Warranty Accrual ProductWarrantyAccrual	43348000	USD
CY2021	us-gaap	Product Warranty Expense ProductWarrantyExpense	23061000	USD
CY2020	us-gaap	Product Warranty Expense ProductWarrantyExpense	23973000	USD
CY2021	us-gaap	Product Warranty Accrual Payments ProductWarrantyAccrualPayments	25745000	USD
CY2020	us-gaap	Product Warranty Accrual Payments ProductWarrantyAccrualPayments	31462000	USD
CY2021	us-gaap	Standard Product Warranty Accrual Preexisting Increase Decrease StandardProductWarrantyAccrualPreexistingIncreaseDecrease	6286000	USD
CY2020	us-gaap	Standard Product Warranty Accrual Preexisting Increase Decrease StandardProductWarrantyAccrualPreexistingIncreaseDecrease	4849000	USD
CY2021Q4	us-gaap	Product Warranty Accrual ProductWarrantyAccrual	44310000	USD
CY2020Q4	us-gaap	Product Warranty Accrual ProductWarrantyAccrual	40708000	USD
CY2021Q4	infn	Outstanding Standby Letters Of Credit OutstandingStandbyLettersOfCredit	22500000	USD
CY2020Q4	infn	Outstanding Standby Letters Of Credit OutstandingStandbyLettersOfCredit	28900000	USD
CY2021Q4	infn	Outstanding Standby Letters Of Credit OutstandingStandbyLettersOfCredit	22500000	USD
CY2020Q4	infn	Outstanding Standby Letters Of Credit OutstandingStandbyLettersOfCredit	28890000	USD
CY2021Q4	infn	Bond Secure Amount BondSecureAmount	4000000	USD
CY2020Q4	infn	Bond Secure Amount BondSecureAmount	2800000	USD
CY2021Q4	infn	Shares Subject To Options And Restricted Stock Or Rsu Awards SharesSubjectToOptionsAndRestrictedStockOrRsuAwards	13721000	shares
CY2021Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Available For Grant ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant	8480000	shares
CY2021Q4	infn	Shares Of Common Stock Reserved For Future Issuance Under Espp SharesOfCommonStockReservedForFutureIssuanceUnderEspp	7165000	shares
CY2021Q4	us-gaap	Common Stock Capital Shares Reserved For Future Issuance CommonStockCapitalSharesReservedForFutureIssuance	29366000	shares
CY2021Q4	us-gaap	Share Price SharePrice	9.55
CY2020	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Expected Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1	P0Y6M
CY2019	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Expected Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1	P0Y6M
CY2018	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Expected Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1	P0Y6M
CY2021	infn	Amortization Of Stock Based Compensation AmortizationOfStockBasedCompensation	42300000	USD
CY2021	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	9345000	USD
CY2020	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	8637000	USD
CY2019	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	10438000	USD
CY2021	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	51812000	USD
CY2020	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	49461000	USD
CY2019	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	42779000	USD
CY2021	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	991000	USD
CY2020	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	494000	USD
CY2019	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	0	USD
CY2021	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	137000	USD
CY2020	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	917000	USD
CY2019	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	288000	USD
CY2021	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	12431000	USD
CY2020	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	9606000	USD
CY2019	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	3046000	USD
CY2021	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	13559000	USD
CY2020	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	11017000	USD
CY2019	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	3334000	USD
CY2021	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	0	USD
CY2020	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	0	USD
CY2019	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	369000	USD
CY2021	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	0	USD
CY2020	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	0	USD
CY2019	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	0	USD
CY2021	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	-1571000	USD
CY2020	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	-4982000	USD
CY2019	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	-740000	USD
CY2021	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-1571000	USD
CY2020	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-4982000	USD
CY2019	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-371000	USD
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits Research EffectiveIncomeTaxRateReconciliationTaxCreditsResearch	-0.012
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	11988000	USD
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	6035000	USD
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	2963000	USD
CY2021	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	-20700000	USD
CY2020	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	-37300000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	-202200000	USD
CY2021	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210
CY2020	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210
CY2019	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210
CY2021	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	-0.012
CY2020	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	-0.004
CY2019	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	-0.001
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits Research EffectiveIncomeTaxRateReconciliationTaxCreditsResearch	-0.017
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits Research EffectiveIncomeTaxRateReconciliationTaxCreditsResearch	-0.010
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Share Based Compensation Cost EffectiveIncomeTaxRateReconciliationNondeductibleExpenseShareBasedCompensationCost	0.011
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Share Based Compensation Cost EffectiveIncomeTaxRateReconciliationNondeductibleExpenseShareBasedCompensationCost	-0.012
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Share Based Compensation Cost EffectiveIncomeTaxRateReconciliationNondeductibleExpenseShareBasedCompensationCost	-0.020
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Change In Deferred Tax Assets Valuation Allowance EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance	-0.209
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Change In Deferred Tax Assets Valuation Allowance EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance	-0.169
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Change In Deferred Tax Assets Valuation Allowance EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance	-0.197
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential	-0.069
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential	-0.063
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential	-0.002
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	-0.023
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	-0.004
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	-0.008
CY2021	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	-0.075
CY2020	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	-0.030
CY2019	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	-0.008
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	12000000	USD
CY2021Q4	us-gaap	Deferred Tax Liabilities Financing Arrangements DeferredTaxLiabilitiesFinancingArrangements	29897000	USD
CY2021	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	-0.075
CY2021	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.21
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	6000000	USD
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	3000000	USD
CY2020	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	-0.030
CY2019	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	-0.008
CY2021Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	336711000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	354598000	USD
CY2021Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards Research DeferredTaxAssetsTaxCreditCarryforwardsResearch	132829000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards Research DeferredTaxAssetsTaxCreditCarryforwardsResearch	126839000	USD
CY2021Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Accrued Liabilities DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities	76898000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Accrued Liabilities DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities	61871000	USD
CY2021Q4	us-gaap	Deferred Tax Assets Inventory DeferredTaxAssetsInventory	22651000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Inventory DeferredTaxAssetsInventory	32444000	USD
CY2021Q4	us-gaap	Deferred Tax Assets Property Plant And Equipment DeferredTaxAssetsPropertyPlantAndEquipment	0	USD
CY2020Q4	us-gaap	Deferred Tax Assets Property Plant And Equipment DeferredTaxAssetsPropertyPlantAndEquipment	5819000	USD
CY2021Q4	infn	Deferred Tax Assets Operating Lease Liability DeferredTaxAssetsOperatingLeaseLiability	19407000	USD
CY2020Q4	infn	Deferred Tax Assets Operating Lease Liability DeferredTaxAssetsOperatingLeaseLiability	24261000	USD
CY2021Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Share Based Compensation Cost DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost	4902000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Share Based Compensation Cost DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost	4161000	USD
CY2021Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	593398000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	609993000	USD
CY2021Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	521620000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	531923000	USD
CY2021Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	71778000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	78070000	USD
CY2021Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	10792000	USD
CY2020Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	0	USD
CY2021Q4	infn	Deferred Tax Liabilities Operating Lease Right Of Use Asset DeferredTaxLiabilitiesOperatingLeaseRightOfUseAsset	12216000	USD
CY2020Q4	infn	Deferred Tax Liabilities Operating Lease Right Of Use Asset DeferredTaxLiabilitiesOperatingLeaseRightOfUseAsset	17515000	USD
CY2021Q4	us-gaap	Deferred Tax Liabilities Goodwill And Intangible Assets Intangible Assets DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets	19273000	USD
CY2020Q4	us-gaap	Deferred Tax Liabilities Goodwill And Intangible Assets Intangible Assets DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets	24547000	USD
CY2020Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	57931000	USD
CY2019Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	44092000	USD
CY2020Q4	us-gaap	Deferred Tax Liabilities Financing Arrangements DeferredTaxLiabilitiesFinancingArrangements	37979000	USD
CY2021Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	72178000	USD
CY2020Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	80041000	USD
CY2021Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	400000	USD
CY2020Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	1971000	USD
CY2018Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	24617000	USD
CY2021	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	1198000	USD
CY2020	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	3213000	USD
CY2019	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	1965000	USD
CY2021	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	7633000	USD
CY2020	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	11494000	USD
CY2019	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	18212000	USD
CY2021	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	9569000	USD
CY2020	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	625000	USD
CY2019	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	542000	USD
CY2021	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	2943000	USD
CY2020	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	243000	USD
CY2019	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	160000	USD
CY2021Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	54250000	USD
CY2020Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	57931000	USD
CY2019Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	44092000	USD
CY2021Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	54300000	USD
CY2021	infn	Offset To Deferred Tax Assets For Unrecognized Tax Benefits OffsetToDeferredTaxAssetsForUnrecognizedTaxBenefits	41500000	USD
CY2021Q4	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	12800000	USD
CY2021Q4	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued	2100000	USD
CY2020Q4	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued	2900000	USD
CY2019Q4	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued	1400000	USD
CY2021Q4	infn	Unrecognized Tax Benefits Net UnrecognizedTaxBenefitsNet	800000	USD
CY2021	us-gaap	Number Of Operating Segments NumberOfOperatingSegments	1	segment
CY2021	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	1	segment
CY2021Q4	us-gaap	Noncurrent Assets NoncurrentAssets	160218000	USD
CY2020Q4	us-gaap	Noncurrent Assets NoncurrentAssets	153133000	USD
CY2021	us-gaap	Other Postretirement Benefit Expense OtherPostretirementBenefitExpense	6200000	USD
CY2020	us-gaap	Other Postretirement Benefit Expense OtherPostretirementBenefitExpense	3500000	USD
CY2019	us-gaap	Other Postretirement Benefit Expense OtherPostretirementBenefitExpense	3900000	USD
CY2020Q4	us-gaap	Defined Benefit Plan Benefit Obligation DefinedBenefitPlanBenefitObligation	129936000	USD
CY2019Q4	us-gaap	Defined Benefit Plan Benefit Obligation DefinedBenefitPlanBenefitObligation	113234000	USD
CY2021	us-gaap	Defined Benefit Plan Service Cost DefinedBenefitPlanServiceCost	351000	USD
CY2020	us-gaap	Defined Benefit Plan Service Cost DefinedBenefitPlanServiceCost	896000	USD
CY2021	us-gaap	Defined Benefit Plan Interest Cost DefinedBenefitPlanInterestCost	1265000	USD
CY2020	us-gaap	Defined Benefit Plan Interest Cost DefinedBenefitPlanInterestCost	1773000	USD
CY2021	us-gaap	Defined Benefit Plan Plan Assets Benefits Paid DefinedBenefitPlanPlanAssetsBenefitsPaid	3206000	USD
CY2020	us-gaap	Defined Benefit Plan Plan Assets Benefits Paid DefinedBenefitPlanPlanAssetsBenefitsPaid	0	USD
CY2021	us-gaap	Defined Benefit Plan Benefit Obligation Benefits Paid DefinedBenefitPlanBenefitObligationBenefitsPaid	3413000	USD
CY2020	us-gaap	Defined Benefit Plan Benefit Obligation Benefits Paid DefinedBenefitPlanBenefitObligationBenefitsPaid	3103000	USD
CY2021	us-gaap	Defined Benefit Plan Curtailments DefinedBenefitPlanCurtailments	0	USD
CY2020	us-gaap	Defined Benefit Plan Curtailments DefinedBenefitPlanCurtailments	-258000	USD
CY2021	us-gaap	Defined Benefit Plan Actuarial Gain Loss DefinedBenefitPlanActuarialGainLoss	3050000	USD
CY2020	us-gaap	Defined Benefit Plan Actuarial Gain Loss DefinedBenefitPlanActuarialGainLoss	-6243000	USD
CY2021	us-gaap	Defined Benefit Plan Benefit Obligation Contributions By Plan Participant DefinedBenefitPlanBenefitObligationContributionsByPlanParticipant	190000	USD
CY2020	us-gaap	Defined Benefit Plan Benefit Obligation Contributions By Plan Participant DefinedBenefitPlanBenefitObligationContributionsByPlanParticipant	986000	USD
CY2021	us-gaap	Defined Benefit Plan Foreign Currency Exchange Rate Changes Benefit Obligation DefinedBenefitPlanForeignCurrencyExchangeRateChangesBenefitObligation	9508000	USD
CY2020	us-gaap	Defined Benefit Plan Foreign Currency Exchange Rate Changes Benefit Obligation DefinedBenefitPlanForeignCurrencyExchangeRateChangesBenefitObligation	-10165000	USD
CY2021Q4	us-gaap	Defined Benefit Plan Benefit Obligation DefinedBenefitPlanBenefitObligation	115771000	USD
CY2020Q4	us-gaap	Defined Benefit Plan Benefit Obligation DefinedBenefitPlanBenefitObligation	129936000	USD
CY2020Q4	us-gaap	Defined Benefit Plan Fair Value Of Plan Assets DefinedBenefitPlanFairValueOfPlanAssets	77561000	USD
CY2019Q4	us-gaap	Defined Benefit Plan Fair Value Of Plan Assets DefinedBenefitPlanFairValueOfPlanAssets	69777000	USD
CY2021	us-gaap	Defined Benefit Plan Actual Return On Plan Assets DefinedBenefitPlanActualReturnOnPlanAssets	12425000	USD
CY2020	us-gaap	Defined Benefit Plan Actual Return On Plan Assets DefinedBenefitPlanActualReturnOnPlanAssets	447000	USD
CY2021	us-gaap	Defined Benefit Plan Plan Assets Contributions By Plan Participant DefinedBenefitPlanPlanAssetsContributionsByPlanParticipant	289000	USD
CY2020	us-gaap	Defined Benefit Plan Plan Assets Contributions By Plan Participant DefinedBenefitPlanPlanAssetsContributionsByPlanParticipant	1305000	USD
CY2021	us-gaap	Defined Benefit Plan Plan Assets Foreign Currency Translation Gain Loss DefinedBenefitPlanPlanAssetsForeignCurrencyTranslationGainLoss	-5454000	USD
CY2020	us-gaap	Defined Benefit Plan Plan Assets Foreign Currency Translation Gain Loss DefinedBenefitPlanPlanAssetsForeignCurrencyTranslationGainLoss	6032000	USD
CY2021Q4	us-gaap	Defined Benefit Plan Fair Value Of Plan Assets DefinedBenefitPlanFairValueOfPlanAssets	81615000	USD
CY2020Q4	us-gaap	Defined Benefit Plan Fair Value Of Plan Assets DefinedBenefitPlanFairValueOfPlanAssets	77561000	USD
CY2021Q4	us-gaap	Defined Benefit Plan Funded Status Of Plan DefinedBenefitPlanFundedStatusOfPlan	34156000	USD
CY2020Q4	us-gaap	Defined Benefit Plan Funded Status Of Plan DefinedBenefitPlanFundedStatusOfPlan	52375000	USD
CY2021Q4	us-gaap	Defined Benefit Plan Accumulated Benefit Obligation DefinedBenefitPlanAccumulatedBenefitObligation	115100000	USD
CY2020Q4	us-gaap	Defined Benefit Plan Accumulated Benefit Obligation DefinedBenefitPlanAccumulatedBenefitObligation	128900000	USD
CY2021Q4	us-gaap	Defined Benefit Plan Assets For Plan Benefits Noncurrent DefinedBenefitPlanAssetsForPlanBenefitsNoncurrent	81615000	USD
CY2020Q4	us-gaap	Defined Benefit Plan Assets For Plan Benefits Noncurrent DefinedBenefitPlanAssetsForPlanBenefitsNoncurrent	77561000	USD
CY2021Q4	us-gaap	Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent	115771000	USD
CY2020Q4	us-gaap	Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent	129936000	USD
CY2021Q4	us-gaap	Defined Benefit Plan Amounts Recognized In Balance Sheet DefinedBenefitPlanAmountsRecognizedInBalanceSheet	-34156000	USD
CY2020Q4	us-gaap	Defined Benefit Plan Amounts Recognized In Balance Sheet DefinedBenefitPlanAmountsRecognizedInBalanceSheet	-52375000	USD
CY2021	us-gaap	Defined Benefit Plan Service Cost DefinedBenefitPlanServiceCost	351000	USD
CY2020	us-gaap	Defined Benefit Plan Service Cost DefinedBenefitPlanServiceCost	896000	USD
CY2019	us-gaap	Defined Benefit Plan Service Cost DefinedBenefitPlanServiceCost	2061000	USD
CY2021	us-gaap	Defined Benefit Plan Interest Cost DefinedBenefitPlanInterestCost	1265000	USD
CY2020	us-gaap	Defined Benefit Plan Interest Cost DefinedBenefitPlanInterestCost	1773000	USD
CY2019	us-gaap	Defined Benefit Plan Interest Cost DefinedBenefitPlanInterestCost	2075000	USD
CY2021	us-gaap	Defined Benefit Plan Expected Return On Plan Assets DefinedBenefitPlanExpectedReturnOnPlanAssets	2895000	USD
CY2020	us-gaap	Defined Benefit Plan Expected Return On Plan Assets DefinedBenefitPlanExpectedReturnOnPlanAssets	2644000	USD
CY2019	us-gaap	Defined Benefit Plan Expected Return On Plan Assets DefinedBenefitPlanExpectedReturnOnPlanAssets	2371000	USD
CY2021	us-gaap	Defined Benefit Plan Amortization Of Gains Losses DefinedBenefitPlanAmortizationOfGainsLosses	-3383000	USD
CY2020	us-gaap	Defined Benefit Plan Amortization Of Gains Losses DefinedBenefitPlanAmortizationOfGainsLosses	-1884000	USD
CY2019	us-gaap	Defined Benefit Plan Amortization Of Gains Losses DefinedBenefitPlanAmortizationOfGainsLosses	-1638000	USD
CY2021	us-gaap	Defined Benefit Plan Net Periodic Benefit Cost DefinedBenefitPlanNetPeriodicBenefitCost	2104000	USD
CY2020	us-gaap	Defined Benefit Plan Net Periodic Benefit Cost DefinedBenefitPlanNetPeriodicBenefitCost	1909000	USD
CY2019	us-gaap	Defined Benefit Plan Net Periodic Benefit Cost DefinedBenefitPlanNetPeriodicBenefitCost	3403000	USD
CY2020Q4	us-gaap	Defined Benefit Plan Accumulated Other Comprehensive Income Before Tax DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeBeforeTax	11666000	USD
CY2019Q4	us-gaap	Defined Benefit Plan Accumulated Other Comprehensive Income Before Tax DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeBeforeTax	5367000	USD
CY2021	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Net Unamortized Gain Loss Arising During Period Before Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansNetUnamortizedGainLossArisingDuringPeriodBeforeTax	12580000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Net Unamortized Gain Loss Arising During Period Before Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansNetUnamortizedGainLossArisingDuringPeriodBeforeTax	-8183000	USD
CY2021	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossBeforeTax	-3383000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossBeforeTax	-1884000	USD
CY2021Q4	us-gaap	Defined Benefit Plan Accumulated Other Comprehensive Income Before Tax DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeBeforeTax	-4297000	USD
CY2020Q4	us-gaap	Defined Benefit Plan Accumulated Other Comprehensive Income Before Tax DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeBeforeTax	11666000	USD
CY2021Q4	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Next Twelve Months DefinedBenefitPlanExpectedFutureBenefitPaymentsNextTwelveMonths	5300000	USD
CY2021Q4	us-gaap	Defined Benefit Plan Assumptions Used Calculating Benefit Obligation Discount Rate DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationDiscountRate	0.0120
CY2020Q4	us-gaap	Defined Benefit Plan Assumptions Used Calculating Benefit Obligation Discount Rate DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationDiscountRate	0.0105
CY2021Q4	us-gaap	Defined Benefit Plan Assumptions Used Calculating Benefit Obligation Rate Of Compensation Increase DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationRateOfCompensationIncrease	0.0225
CY2020Q4	us-gaap	Defined Benefit Plan Assumptions Used Calculating Benefit Obligation Rate Of Compensation Increase DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationRateOfCompensationIncrease	0.0225
CY2021Q4	infn	Defined Benefit Plan Assumptions Used Calculating Benefit Obligation Rate Of Pension Increase DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationRateOfPensionIncrease	0.0200
CY2020Q4	infn	Defined Benefit Plan Assumptions Used Calculating Benefit Obligation Rate Of Pension Increase DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationRateOfPensionIncrease	0.0200
CY2021Q4	infn	Defined Benefit Plan Assumptions Used Calculating Benefit Obligation Expected Long Term Return On Plan Assets DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationExpectedLongTermReturnOnPlanAssets	0.0393
CY2020Q4	infn	Defined Benefit Plan Assumptions Used Calculating Benefit Obligation Expected Long Term Return On Plan Assets DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationExpectedLongTermReturnOnPlanAssets	0.0393
CY2021Q4	us-gaap	Defined Benefit Plan Fair Value Of Plan Assets DefinedBenefitPlanFairValueOfPlanAssets	81615000	USD
CY2020Q4	us-gaap	Defined Benefit Plan Fair Value Of Plan Assets DefinedBenefitPlanFairValueOfPlanAssets	77561000	USD
CY2021Q4	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Next Twelve Months DefinedBenefitPlanExpectedFutureBenefitPaymentsNextTwelveMonths	5251000	USD
CY2021Q4	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Year Two DefinedBenefitPlanExpectedFutureBenefitPaymentsYearTwo	3670000	USD
CY2021Q4	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Year Three DefinedBenefitPlanExpectedFutureBenefitPaymentsYearThree	3943000	USD
CY2021Q4	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Year Four DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFour	5606000	USD
CY2021Q4	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Year Five DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFive	3932000	USD
CY2021Q4	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Five Fiscal Years Thereafter DefinedBenefitPlanExpectedFutureBenefitPaymentsFiveFiscalYearsThereafter	21329000	USD
CY2021Q4	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	400257000	USD
CY2021Q3	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	355814000	USD
CY2021Q2	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	338227000	USD
CY2021Q1	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	330907000	USD
CY2020Q4	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	353525000	USD
CY2020Q3	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	340211000	USD
CY2020Q2	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	331587000	USD
CY2020Q1	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	330273000	USD
CY2021Q4	infn	Amortization Of Intangible Assets Cost Of Revenue AmortizationOfIntangibleAssetsCostOfRevenue	5782000	USD
CY2021Q3	infn	Amortization Of Intangible Assets Cost Of Revenue AmortizationOfIntangibleAssetsCostOfRevenue	4609000	USD
CY2021Q2	infn	Amortization Of Intangible Assets Cost Of Revenue AmortizationOfIntangibleAssetsCostOfRevenue	4614000	USD
CY2021Q1	infn	Amortization Of Intangible Assets Cost Of Revenue AmortizationOfIntangibleAssetsCostOfRevenue	4616000	USD
CY2020Q4	infn	Amortization Of Intangible Assets Cost Of Revenue AmortizationOfIntangibleAssetsCostOfRevenue	4611000	USD
CY2020Q3	infn	Amortization Of Intangible Assets Cost Of Revenue AmortizationOfIntangibleAssetsCostOfRevenue	7287000	USD
CY2020Q2	infn	Amortization Of Intangible Assets Cost Of Revenue AmortizationOfIntangibleAssetsCostOfRevenue	8721000	USD
CY2020Q1	infn	Amortization Of Intangible Assets Cost Of Revenue AmortizationOfIntangibleAssetsCostOfRevenue	8628000	USD
CY2021Q4	infn	Business Combination Acquisition And Integration Related Costs Cost Of Revenue BusinessCombinationAcquisitionAndIntegrationRelatedCostsCostOfRevenue	0	USD
CY2021Q3	infn	Business Combination Acquisition And Integration Related Costs Cost Of Revenue BusinessCombinationAcquisitionAndIntegrationRelatedCostsCostOfRevenue	0	USD
CY2021Q2	infn	Business Combination Acquisition And Integration Related Costs Cost Of Revenue BusinessCombinationAcquisitionAndIntegrationRelatedCostsCostOfRevenue	0	USD
CY2021Q1	infn	Business Combination Acquisition And Integration Related Costs Cost Of Revenue BusinessCombinationAcquisitionAndIntegrationRelatedCostsCostOfRevenue	0	USD
CY2020Q4	infn	Business Combination Acquisition And Integration Related Costs Cost Of Revenue BusinessCombinationAcquisitionAndIntegrationRelatedCostsCostOfRevenue	0	USD
CY2020Q3	infn	Business Combination Acquisition And Integration Related Costs Cost Of Revenue BusinessCombinationAcquisitionAndIntegrationRelatedCostsCostOfRevenue	43000	USD
CY2020Q2	infn	Business Combination Acquisition And Integration Related Costs Cost Of Revenue BusinessCombinationAcquisitionAndIntegrationRelatedCostsCostOfRevenue	750000	USD
CY2020Q1	infn	Business Combination Acquisition And Integration Related Costs Cost Of Revenue BusinessCombinationAcquisitionAndIntegrationRelatedCostsCostOfRevenue	1035000	USD
CY2021Q4	infn	Restructuring Charges Costof Revenue RestructuringChargesCostofRevenue	-148000	USD
CY2021Q3	infn	Restructuring Charges Costof Revenue RestructuringChargesCostofRevenue	1434000	USD
CY2021Q2	infn	Restructuring Charges Costof Revenue RestructuringChargesCostofRevenue	-269000	USD
CY2021Q1	infn	Restructuring Charges Costof Revenue RestructuringChargesCostofRevenue	514000	USD
CY2020Q4	infn	Restructuring Charges Costof Revenue RestructuringChargesCostofRevenue	-106000	USD
CY2020Q3	infn	Restructuring Charges Costof Revenue RestructuringChargesCostofRevenue	1504000	USD
CY2020Q2	infn	Restructuring Charges Costof Revenue RestructuringChargesCostofRevenue	1591000	USD
CY2020Q1	infn	Restructuring Charges Costof Revenue RestructuringChargesCostofRevenue	1157000	USD
CY2021Q4	us-gaap	Cost Of Revenue CostOfRevenue	257791000	USD
CY2021Q3	us-gaap	Cost Of Revenue CostOfRevenue	237721000	USD
CY2021Q2	us-gaap	Cost Of Revenue CostOfRevenue	217844000	USD
CY2021Q1	us-gaap	Cost Of Revenue CostOfRevenue	213875000	USD
CY2020Q4	us-gaap	Cost Of Revenue CostOfRevenue	227382000	USD
CY2020Q3	us-gaap	Cost Of Revenue CostOfRevenue	231935000	USD
CY2020Q2	infn	Amortization Of Intangible Assets Operating Expenses AmortizationOfIntangibleAssetsOperatingExpenses	4585000	USD
CY2020Q2	us-gaap	Cost Of Revenue CostOfRevenue	234180000	USD
CY2020Q1	us-gaap	Cost Of Revenue CostOfRevenue	253307000	USD
CY2021Q4	us-gaap	Gross Profit GrossProfit	142466000	USD
CY2021Q3	us-gaap	Gross Profit GrossProfit	118093000	USD
CY2021Q2	us-gaap	Gross Profit GrossProfit	120383000	USD
CY2021Q1	us-gaap	Gross Profit GrossProfit	117032000	USD
CY2020Q4	us-gaap	Gross Profit GrossProfit	126143000	USD
CY2020Q3	us-gaap	Gross Profit GrossProfit	108276000	USD
CY2020Q2	us-gaap	Gross Profit GrossProfit	97407000	USD
CY2020Q1	us-gaap	Gross Profit GrossProfit	76966000	USD
CY2021Q4	infn	Amortization Of Intangible Assets Operating Expenses AmortizationOfIntangibleAssetsOperatingExpenses	4307000	USD
CY2021Q3	infn	Amortization Of Intangible Assets Operating Expenses AmortizationOfIntangibleAssetsOperatingExpenses	4351000	USD
CY2021Q2	infn	Amortization Of Intangible Assets Operating Expenses AmortizationOfIntangibleAssetsOperatingExpenses	4392000	USD
CY2021Q1	infn	Amortization Of Intangible Assets Operating Expenses AmortizationOfIntangibleAssetsOperatingExpenses	4405000	USD
CY2020Q4	infn	Amortization Of Intangible Assets Operating Expenses AmortizationOfIntangibleAssetsOperatingExpenses	4745000	USD
CY2020Q3	infn	Amortization Of Intangible Assets Operating Expenses AmortizationOfIntangibleAssetsOperatingExpenses	4696000	USD
CY2021Q2	infn	Business Combination Acquisition And Integration Related Costs BusinessCombinationAcquisitionAndIntegrationRelatedCosts	0	USD
CY2021Q1	infn	Business Combination Acquisition And Integration Related Costs BusinessCombinationAcquisitionAndIntegrationRelatedCosts	614000	USD
CY2020Q4	infn	Business Combination Acquisition And Integration Related Costs BusinessCombinationAcquisitionAndIntegrationRelatedCosts	-265000	USD
CY2020Q1	infn	Amortization Of Intangible Assets Operating Expenses AmortizationOfIntangibleAssetsOperatingExpenses	4555000	USD
CY2021Q4	infn	Business Combination Acquisition And Integration Related Costs BusinessCombinationAcquisitionAndIntegrationRelatedCosts	0	USD
CY2021Q3	infn	Business Combination Acquisition And Integration Related Costs BusinessCombinationAcquisitionAndIntegrationRelatedCosts	0	USD
CY2020Q3	infn	Business Combination Acquisition And Integration Related Costs BusinessCombinationAcquisitionAndIntegrationRelatedCosts	1045000	USD
CY2020Q2	infn	Business Combination Acquisition And Integration Related Costs BusinessCombinationAcquisitionAndIntegrationRelatedCosts	3344000	USD
CY2020Q1	infn	Business Combination Acquisition And Integration Related Costs BusinessCombinationAcquisitionAndIntegrationRelatedCosts	9222000	USD
CY2021Q4	infn	Restructuring Charges Operating Expenses RestructuringChargesOperatingExpenses	5055000	USD
CY2021Q3	infn	Restructuring Charges Operating Expenses RestructuringChargesOperatingExpenses	6546000	USD
CY2021Q2	infn	Restructuring Charges Operating Expenses RestructuringChargesOperatingExpenses	-674000	USD
CY2021Q1	infn	Restructuring Charges Operating Expenses RestructuringChargesOperatingExpenses	2319000	USD
CY2020Q4	infn	Restructuring Charges Operating Expenses RestructuringChargesOperatingExpenses	7230000	USD
CY2020Q3	infn	Restructuring Charges Operating Expenses RestructuringChargesOperatingExpenses	6679000	USD
CY2020Q2	infn	Restructuring Charges Operating Expenses RestructuringChargesOperatingExpenses	5097000	USD
CY2020Q1	infn	Restructuring Charges Operating Expenses RestructuringChargesOperatingExpenses	5580000	USD
CY2021Q4	us-gaap	Other Expenses OtherExpenses	143246000	USD
CY2021Q3	us-gaap	Other Expenses OtherExpenses	138172000	USD
CY2021Q2	us-gaap	Other Expenses OtherExpenses	139913000	USD
CY2021Q1	us-gaap	Other Expenses OtherExpenses	132807000	USD
CY2020Q4	us-gaap	Other Expenses OtherExpenses	121209000	USD
CY2020Q3	us-gaap	Other Expenses OtherExpenses	122773000	USD
CY2020Q2	us-gaap	Other Expenses OtherExpenses	129007000	USD
CY2020Q1	us-gaap	Other Expenses OtherExpenses	134489000	USD
CY2021Q4	us-gaap	Operating Expenses OperatingExpenses	152608000	USD
CY2021Q3	us-gaap	Operating Expenses OperatingExpenses	149069000	USD
CY2021Q2	us-gaap	Operating Expenses OperatingExpenses	143631000	USD
CY2021Q1	us-gaap	Operating Expenses OperatingExpenses	140145000	USD
CY2020Q4	us-gaap	Operating Expenses OperatingExpenses	132919000	USD
CY2020Q3	us-gaap	Operating Expenses OperatingExpenses	135193000	USD
CY2020Q2	us-gaap	Operating Expenses OperatingExpenses	142033000	USD
CY2020Q1	us-gaap	Operating Expenses OperatingExpenses	153846000	USD
CY2021Q4	us-gaap	Operating Income Loss OperatingIncomeLoss	-10142000	USD
CY2021Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	-30976000	USD
CY2021Q2	us-gaap	Operating Income Loss OperatingIncomeLoss	-23248000	USD
CY2021Q1	us-gaap	Operating Income Loss OperatingIncomeLoss	-23113000	USD
CY2020Q4	us-gaap	Operating Income Loss OperatingIncomeLoss	-6776000	USD
CY2020Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	-26917000	USD
CY2020Q2	us-gaap	Operating Income Loss OperatingIncomeLoss	-44626000	USD
CY2020Q1	us-gaap	Operating Income Loss OperatingIncomeLoss	-76880000	USD
CY2021Q4	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-20479000	USD
CY2021Q3	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-17363000	USD
CY2021Q2	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-9271000	USD
CY2021Q1	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-24198000	USD
CY2020Q4	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-2043000	USD
CY2020Q3	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-7620000	USD
CY2020Q2	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-14374000	USD
CY2020Q1	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-21452000	USD
CY2021Q4	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-30621000	USD
CY2021Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-48339000	USD
CY2021Q2	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-32519000	USD
CY2021Q1	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-47311000	USD
CY2020Q4	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-8819000	USD
CY2020Q3	us-gaap	Net Income Loss NetIncomeLoss	-35896000	USD
CY2020Q2	us-gaap	Net Income Loss NetIncomeLoss	-61635000	USD
CY2021Q4	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	2447000	USD
CY2021Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	5455000	USD
CY2020Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-34537000	USD
CY2020Q2	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-59000000	USD
CY2020Q1	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-98332000	USD
CY2021Q2	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	3075000	USD
CY2021Q1	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	1011000	USD
CY2020Q4	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	1105000	USD
CY2020Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	1359000	USD
CY2020Q2	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	2635000	USD
CY2020Q1	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	936000	USD
CY2021Q4	us-gaap	Net Income Loss NetIncomeLoss	-33068000	USD
CY2021Q3	us-gaap	Net Income Loss NetIncomeLoss	-53794000	USD
CY2021Q2	us-gaap	Net Income Loss NetIncomeLoss	-35594000	USD
CY2021Q1	us-gaap	Net Income Loss NetIncomeLoss	-48322000	USD
CY2020Q4	us-gaap	Net Income Loss NetIncomeLoss	-9924000	USD
CY2020Q1	us-gaap	Net Income Loss NetIncomeLoss	-99268000	USD
CY2021Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.24
CY2020Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.05
CY2021Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.26
CY2021Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.17
CY2021Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.16
CY2020Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.19
CY2020Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.33
CY2020Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.55
CY2021Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.16
CY2021Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.26
CY2021Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.17
CY2021Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.24
CY2020Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.05
CY2020Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.19
CY2020Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.33
CY2020Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.55
CY2021	infn	Accounts Receivable Allowancefor Credit Loss Additions AccountsReceivableAllowanceforCreditLossAdditions	822000	USD

Files In Submission

Name	View Source	Status
0001138639-22-000033-index-headers.html	Edgar Link	pending
0001138639-22-000033-index.html	Edgar Link	pending
0001138639-22-000033.txt	Edgar Link	pending
0001138639-22-000033-xbrl.zip	Edgar Link	pending
FilingSummary.xml	Edgar Link	unprocessable
Financial_Report.xlsx	Edgar Link	pending
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$INFN
Infinera Corp Stock $infn

2021 Q4 Form 10-K Financial Statement

#000113863922000033 Filed on February 23, 2022

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$INFN Infinera Corp Stock $infn

2021 Q4 Form 10-K Financial Statement

#000113863922000033 Filed on February 23, 2022

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$INFN
Infinera Corp Stock $infn