$INFN
Infinera Corp Stock $infn

$infn Overview Financials Valuation SEC Filings Company Website

2018 Q4 Form 10-K Financial Statement

#000113863920000029 Filed on March 04, 2020

Income Statement

Concept	2018 Q4	2018 Q3	2018 Q2
Revenue	$332.1M	$200.4M	$208.2M
YoY Change	69.58%	4.07%	18.63%
Cost Of Revenue	$247.6M	$130.2M	$123.9M
YoY Change	66.67%	4.39%	11.17%
Gross Profit	$84.50M	$70.18M	$84.31M
YoY Change	78.71%	3.47%	31.61%
Gross Profit Margin	25.45%	35.02%	40.49%
Selling, General & Admin	$109.1M	$40.95M	$46.60M
YoY Change	134.62%	-9.91%	-0.43%
% of Gross Profit	129.11%	58.36%	55.27%
Research & Development	$78.80M	$50.66M	$56.16M
YoY Change	42.75%	-10.52%	1.95%
% of Gross Profit	93.25%	72.18%	66.61%
Depreciation & Amortization	$50.20M	$17.00M	$16.30M
YoY Change	202.41%	2.41%	1.87%
% of Gross Profit	59.41%	24.22%	19.33%
Operating Expenses	$198.7M	$95.34M	$105.9M
YoY Change	68.71%	-6.6%	3.97%
Operating Profit	-$114.2M	-$25.16M	-$21.62M
YoY Change	62.0%	-26.54%	-42.85%
Interest Expense	-$11.90M	$2.160M	$2.501M
YoY Change	325.0%	-39.14%	-26.51%
% of Operating Profit
Other Income/Expense, Net	-$19.23M	-$7.317M	-$443.0K
YoY Change	332.25%	163.96%	-84.08%
Pretax Income	-$133.5M	-$32.48M	-$22.06M
YoY Change	78.04%	-12.28%	-45.67%
Income Tax	$12.00K	$135.0K	-$124.0K
% Of Pretax Income
Net Earnings	-$133.5M	-$32.61M	-$21.94M
YoY Change	80.4%	-12.41%	-45.77%
Net Earnings / Revenue	-40.19%	-16.27%	-10.54%
Basic Earnings Per Share	-$0.76	-$0.21	-$0.14
Diluted Earnings Per Share	-$0.76	-$0.21	-$0.14
COMMON SHARES
Basic Shares Outstanding	175.0M shares	153.5M shares	152.3M shares
Diluted Shares Outstanding		153.5M shares	152.3M shares

Balance Sheet

Concept	2018 Q4	2018 Q3	2018 Q2
SHORT-TERM ASSETS
Cash & Short-Term Investments	$229.5M	$446.9M	$122.2M
YoY Change	-13.04%	73.42%	-53.85%
Cash & Equivalents	$203.0M	$416.4M	$63.31M
Short-Term Investments	$26.50M	$30.50M	$58.90M
Other Short-Term Assets	$98.60M	$43.80M	$46.10M
YoY Change	128.77%	-1.13%	-3.96%
Inventory	$311.9M	$211.9M	$219.3M
Prepaid Expenses
Receivables	$317.1M	$153.9M	$148.0M
Other Receivables	$0.00	$0.00	$0.00
Total Short-Term Assets	$957.1M	$856.5M	$535.6M
YoY Change	47.71%	24.6%	-20.17%
LONG-TERM ASSETS
Property, Plant & Equipment	$342.8M	$131.9M	$136.8M
YoY Change	152.18%	-7.89%	6.02%
Goodwill	$227.2M	$181.0M	$179.2M
YoY Change	16.16%	-8.28%	-0.28%
Intangibles	$233.1M	$66.14M	$71.80M
YoY Change	152.87%	-33.82%	-30.75%
Long-Term Investments	$0.00	$900.0K	$5.100M
YoY Change	-100.0%	-98.82%	-94.2%
Other Assets	$9.965M	$11.01M	$11.03M
YoY Change	89.38%	154.32%	173.33%
Total Long-Term Assets	$844.2M	$390.9M	$405.3M
YoY Change	79.71%	-22.39%	-20.42%
TOTAL ASSETS
Total Short-Term Assets	$957.1M	$856.5M	$535.6M
Total Long-Term Assets	$844.2M	$390.9M	$405.3M
Total Assets	$1.801B	$1.247B	$941.0M
YoY Change	61.16%	4.73%	-20.28%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$191.2M	$83.25M	$80.35M
YoY Change	228.93%	-6.79%	35.33%
Accrued Expenses	$131.9M	$43.32M	$48.18M
YoY Change	137.95%	44.03%	47.63%
Deferred Revenue	$88.53M
YoY Change	22.25%
Short-Term Debt	$0.00	$0.00	$0.00
YoY Change	-100.0%	-100.0%
Long-Term Debt Due	$4.700M	$0.00	$0.00
YoY Change	-96.76%	-100.0%
Total Short-Term Liabilities	$502.9M	$218.5M	$241.1M
YoY Change	34.21%	-42.73%	16.87%
LONG-TERM LIABILITIES
Long-Term Debt	$266.9M	$262.6M	$0.00
YoY Change			-100.0%
Other Long-Term Liabilities	$63.18M	$14.22M	$14.72M
YoY Change	288.08%	-2.27%	-23.93%
Total Long-Term Liabilities	$330.1M	$276.8M	$14.72M
YoY Change	1927.79%	1802.78%	-90.54%
TOTAL LIABILITIES
Total Short-Term Liabilities	$502.9M	$218.5M	$241.1M
Total Long-Term Liabilities	$330.1M	$276.8M	$14.72M
Total Liabilities	$833.0M	$495.3M	$255.8M
YoY Change	113.06%	25.06%	-29.32%
SHAREHOLDERS EQUITY
Retained Earnings	-$933.3M	-$823.5M	-$790.9M
YoY Change	25.66%	20.38%	30.94%
Common Stock	$1.686B	$1.548B	$1.450B
YoY Change	18.97%	9.99%	5.48%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$703.8M	$704.3M	$637.4M
YoY Change
Total Liabilities & Shareholders Equity	$1.801B	$1.247B	$941.0M
YoY Change	61.16%	4.73%	-20.28%

Cashflow Statement

Concept	2018 Q4	2018 Q3	2018 Q2
OPERATING ACTIVITIES
Net Income	-$133.5M	-$32.61M	-$21.94M
YoY Change	80.4%	-12.41%	-45.77%
Depreciation, Depletion And Amortization	$50.20M	$17.00M	$16.30M
YoY Change	202.41%	2.41%	1.87%
Cash From Operating Activities	-$71.60M	-$20.40M	$7.000M
YoY Change	7060.0%	580.0%	131.02%
INVESTING ACTIVITIES
Capital Expenditures	-$10.70M	-$5.500M	-$13.50M
YoY Change	37.18%	-77.55%	-191.57%
Acquisitions
YoY Change
Other Investing Activities	-$98.90M	$31.00M	$71.00M
YoY Change	-3510.34%	142.19%	-288.33%
Cash From Investing Activities	-$109.6M	$25.50M	$57.50M
YoY Change	2183.33%	-319.83%	-209.55%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	-1.300M	349.1M	-150.4M
YoY Change	1200.0%	58083.33%	-1737.27%
NET CHANGE
Cash From Operating Activities	-71.60M	-20.40M	7.000M
Cash From Investing Activities	-109.6M	25.50M	57.50M
Cash From Financing Activities	-1.300M	349.1M	-150.4M
Net Change In Cash	-182.5M	354.2M	-85.90M
YoY Change	2993.22%	-2630.0%	120.64%
FREE CASH FLOW
Cash From Operating Activities	-$71.60M	-$20.40M	$7.000M
Capital Expenditures	-$10.70M	-$5.500M	-$13.50M
Free Cash Flow	-$60.90M	-$14.90M	$20.50M
YoY Change	-995.59%	-169.3%	-275.02%

Facts In Submission

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CY2017	us-gaap	Operating Income Loss OperatingIncomeLoss	-183087000	USD
CY2019	us-gaap	Investment Income Interest InvestmentIncomeInterest	1139000	USD
CY2018	us-gaap	Investment Income Interest InvestmentIncomeInterest	2428000	USD
CY2017	us-gaap	Investment Income Interest InvestmentIncomeInterest	3328000	USD
CY2019	us-gaap	Interest Expense InterestExpense	31657000	USD
CY2018	us-gaap	Interest Expense InterestExpense	22049000	USD
CY2017	us-gaap	Interest Expense InterestExpense	14017000	USD
CY2019	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-2907000	USD
CY2018	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-9650000	USD
CY2017	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-2160000	USD
CY2019	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-33425000	USD
CY2018	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-29271000	USD
CY2017	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-12849000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-383655000	USD
CY2018	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-214950000	USD
CY2017	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-195936000	USD
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	2963000	USD
CY2018	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-655000	USD
CY2017	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-1430000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	-386618000	USD
CY2018	us-gaap	Net Income Loss NetIncomeLoss	-214295000	USD
CY2017	us-gaap	Net Income Loss NetIncomeLoss	-194506000	USD
CY2019	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-2.16
CY2018	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-1.36
CY2017	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-1.32
CY2019	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-2.16
CY2018	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-1.36
CY2017	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-1.32
CY2019	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	178984000	shares
CY2018	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	157748000	shares
CY2017	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	147878000	shares
CY2019	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	178984000	shares
CY2018	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	157748000	shares
CY2017	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	147878000	shares
CY2019	us-gaap	Net Income Loss NetIncomeLoss	-386618000	USD
CY2018	us-gaap	Net Income Loss NetIncomeLoss	-214295000	USD
CY2017	us-gaap	Net Income Loss NetIncomeLoss	-194506000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Before Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentBeforeTax	91000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Before Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentBeforeTax	327000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Before Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentBeforeTax	-209000	USD
CY2019	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent	-9376000	USD
CY2018	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent	-26483000	USD
CY2017	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent	34787000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesTax	0	USD
CY2018	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesTax	85000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesTax	0	USD
CY2019	us-gaap	Other Comprehensive Income Defined Benefit Plans Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPortionAttributableToParent	54000	USD
CY2018	us-gaap	Other Comprehensive Income Defined Benefit Plans Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPortionAttributableToParent	5313000	USD
CY2017	us-gaap	Other Comprehensive Income Defined Benefit Plans Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPortionAttributableToParent	0	USD
CY2019	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-9339000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-31554000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	34578000	USD
CY2019	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-395957000	USD
CY2018	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-245849000	USD
CY2017	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-159928000	USD
CY2016Q4	us-gaap	Stockholders Equity StockholdersEquity	762328000	USD
CY2017	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	1525000	USD
CY2017	us-gaap	Stock Issued During Period Value Employee Stock Purchase Plan StockIssuedDuringPeriodValueEmployeeStockPurchasePlan	16411000	USD
CY2017	us-gaap	Stock Repurchased During Period Value StockRepurchasedDuringPeriodValue	1034000	USD
CY2017	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	46063000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	34578000	USD
CY2017	us-gaap	Net Income Loss NetIncomeLoss	-194506000	USD
CY2017Q4	us-gaap	Stockholders Equity StockholdersEquity	665365000	USD
CY2018	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	1701000	USD
CY2018	us-gaap	Stock Issued During Period Value Employee Stock Purchase Plan StockIssuedDuringPeriodValueEmployeeStockPurchasePlan	15992000	USD
CY2018	us-gaap	Stock Repurchased During Period Value StockRepurchasedDuringPeriodValue	1144000	USD
CY2018	us-gaap	Stock Issued During Period Value Acquisitions StockIssuedDuringPeriodValueAcquisitions	129628000	USD
CY2018	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	42905000	USD
CY2018	us-gaap	Adjustments To Additional Paid In Capital Convertible Debt With Conversion Feature AdjustmentsToAdditionalPaidInCapitalConvertibleDebtWithConversionFeature	128726000	USD
CY2018	infn	Adjustments To Additional Paid In Capital Capped Call Transactions AdjustmentsToAdditionalPaidInCapitalCappedCallTransactions	48909000	USD
CY2018Q1	us-gaap	Cumulative Effect Of New Accounting Principle In Period Of Adoption CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption	15406000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-31554000	USD
CY2018	us-gaap	Net Income Loss NetIncomeLoss	-214295000	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	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	43347000	USD
CY2019Q1	us-gaap	Cumulative Effect Of New Accounting Principle In Period Of Adoption CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption	23697000	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
CY2019	us-gaap	Net Income Loss NetIncomeLoss	-386618000	USD
CY2018	us-gaap	Net Income Loss NetIncomeLoss	-214295000	USD
CY2017	us-gaap	Net Income Loss NetIncomeLoss	-194506000	USD
CY2019	us-gaap	Depreciation And Amortization DepreciationAndAmortization	119824000	USD
CY2018	us-gaap	Depreciation And Amortization DepreciationAndAmortization	100494000	USD
CY2017	us-gaap	Depreciation And Amortization DepreciationAndAmortization	65997000	USD
CY2019	us-gaap	Restructuring Costs RestructuringCosts	13937000	USD
CY2018	us-gaap	Restructuring Costs RestructuringCosts	7291000	USD
CY2017	us-gaap	Restructuring Costs RestructuringCosts	29237000	USD
CY2019	us-gaap	Amortization Of Financing Costs And Discounts AmortizationOfFinancingCostsAndDiscounts	19162000	USD
CY2018	us-gaap	Amortization Of Financing Costs And Discounts AmortizationOfFinancingCostsAndDiscounts	11161000	USD
CY2017	us-gaap	Amortization Of Financing Costs And Discounts AmortizationOfFinancingCostsAndDiscounts	11342000	USD
CY2019	us-gaap	Accretion Expense AccretionExpense	0	USD
CY2018	us-gaap	Accretion Expense AccretionExpense	4694000	USD
CY2017	us-gaap	Accretion Expense AccretionExpense	0	USD
CY2019	infn	Operating Lease Expense Operating Activities OperatingLeaseExpenseOperatingActivities	31141000	USD
CY2019	us-gaap	Costmethod Investments Other Than Temporary Impairment CostmethodInvestmentsOtherThanTemporaryImpairment	0	USD
CY2018	us-gaap	Costmethod Investments Other Than Temporary Impairment CostmethodInvestmentsOtherThanTemporaryImpairment	5110000	USD
CY2017	us-gaap	Costmethod Investments Other Than Temporary Impairment CostmethodInvestmentsOtherThanTemporaryImpairment	1890000	USD
CY2019	us-gaap	Share Based Compensation ShareBasedCompensation	43294000	USD
CY2018	us-gaap	Share Based Compensation ShareBasedCompensation	43410000	USD
CY2017	us-gaap	Share Based Compensation ShareBasedCompensation	45720000	USD
CY2019	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-178000	USD
CY2018	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-254000	USD
CY2017	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-755000	USD
CY2019	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	35395000	USD
CY2018	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	21111000	USD
CY2017	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	-25849000	USD
CY2019	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	42840000	USD
CY2018	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	8617000	USD
CY2017	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	-2727000	USD
CY2019	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	93621000	USD
CY2018	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	13458000	USD
CY2017	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	8194000	USD
CY2019	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	83272000	USD
CY2018	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	-520000	USD
CY2017	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	-4763000	USD
CY2019	us-gaap	Increase Decrease In Accrued Liabilities IncreaseDecreaseInAccruedLiabilities	54658000	USD
CY2018	us-gaap	Increase Decrease In Accrued Liabilities IncreaseDecreaseInAccruedLiabilities	-21490000	USD
CY2017	us-gaap	Increase Decrease In Accrued Liabilities IncreaseDecreaseInAccruedLiabilities	-14395000	USD
CY2019	us-gaap	Increase Decrease In Contract With Customer Liability IncreaseDecreaseInContractWithCustomerLiability	25658000	USD
CY2018	us-gaap	Increase Decrease In Contract With Customer Liability IncreaseDecreaseInContractWithCustomerLiability	7994000	USD
CY2017	us-gaap	Increase Decrease In Contract With Customer Liability IncreaseDecreaseInContractWithCustomerLiability	16416000	USD
CY2019	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	-167350000	USD
CY2018	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	-99083000	USD
CY2017	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	-21925000	USD
CY2019	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	0	USD
CY2018	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	2986000	USD
CY2017	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	160215000	USD
CY2019	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	1499000	USD
CY2018	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	53039000	USD
CY2017	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	10531000	USD
CY2019	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	25085000	USD
CY2018	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	102112000	USD
CY2017	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	152876000	USD
CY2019	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	10000000	USD
CY2018	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	102899000	USD
CY2017	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	0	USD
CY2019	us-gaap	Proceeds From Sale And Maturity Of Other Investments ProceedsFromSaleAndMaturityOfOtherInvestments	1009000	USD
CY2018	us-gaap	Proceeds From Sale And Maturity Of Other Investments ProceedsFromSaleAndMaturityOfOtherInvestments	1050000	USD
CY2017	us-gaap	Proceeds From Sale And Maturity Of Other Investments ProceedsFromSaleAndMaturityOfOtherInvestments	0	USD
CY2019	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	30202000	USD
CY2018	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	37692000	USD
CY2017	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	58041000	USD
CY2019	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-12609000	USD
CY2018	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	12624000	USD
CY2017	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-54849000	USD
CY2019	us-gaap	Proceeds From Convertible Debt ProceedsFromConvertibleDebt	0	USD
CY2018	us-gaap	Proceeds From Convertible Debt ProceedsFromConvertibleDebt	391431000	USD
CY2017	us-gaap	Proceeds From Convertible Debt ProceedsFromConvertibleDebt	0	USD
CY2019	us-gaap	Proceeds From Issuance Of Secured Debt ProceedsFromIssuanceOfSecuredDebt	8584000	USD
CY2018	us-gaap	Proceeds From Issuance Of Secured Debt ProceedsFromIssuanceOfSecuredDebt	0	USD
CY2017	us-gaap	Proceeds From Issuance Of Secured Debt ProceedsFromIssuanceOfSecuredDebt	0	USD
CY2019	us-gaap	Proceeds From Short Term Debt ProceedsFromShortTermDebt	24310000	USD
CY2018	us-gaap	Proceeds From Short Term Debt ProceedsFromShortTermDebt	0	USD
CY2017	us-gaap	Proceeds From Short Term Debt ProceedsFromShortTermDebt	0	USD
CY2019	us-gaap	Proceeds From Long Term Lines Of Credit ProceedsFromLongTermLinesOfCredit	48125000	USD
CY2018	us-gaap	Proceeds From Long Term Lines Of Credit ProceedsFromLongTermLinesOfCredit	0	USD
CY2017	us-gaap	Proceeds From Long Term Lines Of Credit ProceedsFromLongTermLinesOfCredit	0	USD
CY2019	infn	Payments For Capped Call Transactions PaymentsForCappedCallTransactions	0	USD
CY2018	infn	Payments For Capped Call Transactions PaymentsForCappedCallTransactions	48880000	USD
CY2017	infn	Payments For Capped Call Transactions PaymentsForCappedCallTransactions	0	USD
CY2019	us-gaap	Repayments Of Long Term Lines Of Credit RepaymentsOfLongTermLinesOfCredit	20000000	USD
CY2018	us-gaap	Repayments Of Long Term Lines Of Credit RepaymentsOfLongTermLinesOfCredit	0	USD
CY2017	us-gaap	Repayments Of Long Term Lines Of Credit RepaymentsOfLongTermLinesOfCredit	0	USD
CY2019	us-gaap	Repayments Of Secured Debt RepaymentsOfSecuredDebt	300000	USD
CY2018	us-gaap	Repayments Of Secured Debt RepaymentsOfSecuredDebt	150000000	USD
CY2017	us-gaap	Repayments Of Secured Debt RepaymentsOfSecuredDebt	0	USD
CY2019	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	273000	USD
CY2018	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	0	USD
CY2017	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	0	USD
CY2019	us-gaap	Repayments Of Long Term Capital Lease Obligations RepaymentsOfLongTermCapitalLeaseObligations	163000	USD
CY2018	us-gaap	Repayments Of Long Term Capital Lease Obligations RepaymentsOfLongTermCapitalLeaseObligations	1211000	USD
CY2017	us-gaap	Repayments Of Long Term Capital Lease Obligations RepaymentsOfLongTermCapitalLeaseObligations	0	USD
CY2019	us-gaap	Payments To Minority Shareholders PaymentsToMinorityShareholders	0	USD
CY2018	us-gaap	Payments To Minority Shareholders PaymentsToMinorityShareholders	0	USD
CY2017	us-gaap	Payments To Minority Shareholders PaymentsToMinorityShareholders	471000	USD
CY2019	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	12053000	USD
CY2018	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	17693000	USD
CY2017	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	17991000	USD
CY2019	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	426000	USD
CY2018	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	1144000	USD
CY2017	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	1034000	USD
CY2019	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	71910000	USD
CY2018	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	207889000	USD
CY2017	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	16486000	USD
CY2019	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	-1491000	USD
CY2018	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	-579000	USD
CY2017	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	4194000	USD
CY2019	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-109540000	USD
CY2018	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	120851000	USD
CY2017	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-56094000	USD
CY2018Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	242337000	USD
CY2017Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	121486000	USD
CY2016Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	177580000	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
CY2017Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	121486000	USD
CY2019	us-gaap	Income Taxes Paid IncomeTaxesPaid	16944000	USD
CY2018	us-gaap	Income Taxes Paid IncomeTaxesPaid	6692000	USD
CY2017	us-gaap	Income Taxes Paid IncomeTaxesPaid	5690000	USD
CY2019	us-gaap	Interest Paid Net InterestPaidNet	9564000	USD
CY2018	us-gaap	Interest Paid Net InterestPaidNet	3554000	USD
CY2017	us-gaap	Interest Paid Net InterestPaidNet	2639000	USD
CY2019	infn	Transfer Of Inventory To Fixed Assets TransferOfInventoryToFixedAssets	2961000	USD
CY2018	infn	Transfer Of Inventory To Fixed Assets TransferOfInventoryToFixedAssets	3787000	USD
CY2017	infn	Transfer Of Inventory To Fixed Assets TransferOfInventoryToFixedAssets	4950000	USD
CY2019	us-gaap	Stock Issued During Period Value Acquisitions StockIssuedDuringPeriodValueAcquisitions	0	USD
CY2018	us-gaap	Stock Issued During Period Value Acquisitions StockIssuedDuringPeriodValueAcquisitions	129628000	USD
CY2017	us-gaap	Stock Issued During Period Value Acquisitions StockIssuedDuringPeriodValueAcquisitions	0	USD
CY2019	us-gaap	Loans Assumed1 LoansAssumed1	6960000	USD
CY2018	us-gaap	Loans Assumed1 LoansAssumed1	0	USD
CY2017	us-gaap	Loans Assumed1 LoansAssumed1	0	USD
CY2019	infn	Unpaid Debt Issuancecosts UnpaidDebtIssuancecosts	2493	USD
CY2018	infn	Unpaid Debt Issuancecosts UnpaidDebtIssuancecosts	0	USD
CY2017	infn	Unpaid Debt Issuancecosts UnpaidDebtIssuancecosts	0	USD
CY2019Q4	us-gaap	Cash And Cash Equivalents Fair Value Disclosure CashAndCashEquivalentsFairValueDisclosure	109201000	USD
CY2018Q4	us-gaap	Cash And Cash Equivalents Fair Value Disclosure CashAndCashEquivalentsFairValueDisclosure	202954000	USD
CY2017Q4	us-gaap	Cash And Cash Equivalents Fair Value Disclosure CashAndCashEquivalentsFairValueDisclosure	116345000	USD
CY2019Q4	us-gaap	Restricted Cash And Cash Equivalents At Carrying Value RestrictedCashAndCashEquivalentsAtCarryingValue	4339000	USD
CY2018Q4	us-gaap	Restricted Cash And Cash Equivalents At Carrying Value RestrictedCashAndCashEquivalentsAtCarryingValue	13229000	USD
CY2017Q4	us-gaap	Restricted Cash And Cash Equivalents At Carrying Value RestrictedCashAndCashEquivalentsAtCarryingValue	544000	USD
CY2019Q4	us-gaap	Restricted Cash And Cash Equivalents Noncurrent RestrictedCashAndCashEquivalentsNoncurrent	19257000	USD
CY2018Q4	us-gaap	Restricted Cash And Cash Equivalents Noncurrent RestrictedCashAndCashEquivalentsNoncurrent	26154000	USD
CY2017Q4	us-gaap	Restricted Cash And Cash Equivalents Noncurrent RestrictedCashAndCashEquivalentsNoncurrent	4597000	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
CY2017Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	121486000	USD
CY2019	us-gaap	Use Of Estimates UseOfEstimates	<div style="line-height:120%;padding-top:6px;font-size:9pt;"><span style="font-family:Arial;font-size:9pt;font-style:italic;font-weight:bold;">Use of Estimates</span></div><div style="line-height:120%;padding-top:6px;text-indent:48px;font-size:9pt;"><span style="font-family:Arial;font-size:9pt;">The preparation of consolidated financial statements in conformity with 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. Such management estimates include, but not limited to the stand-alone selling price for the Company's products and services, stock-based compensation, inventory valuation, accrued warranty, fair value of assets acquired and liabilities assumed in a business combinations and accounting for income taxes. Other estimates, assumptions and judgments made by management include restructuring and other related costs, manufacturing partner and supplier liabilities, allowances for sales returns, allowances for doubtful accounts, pension benefit cost and obligations, useful life of acquired intangibles and recoverability of property, plant and equipment, cease-use loss related to facility exit, 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.</span></div>
CY2019	infn	Contract With Customer Contractual Support Period ContractWithCustomerContractualSupportPeriod	P1Y
CY2019	infn	Annual Expected Cash Dividend Yield AnnualExpectedCashDividendYield	0
CY2019	us-gaap	Advertising Expense AdvertisingExpense	1500000	USD
CY2018	us-gaap	Advertising Expense AdvertisingExpense	900000	USD
CY2017	us-gaap	Advertising Expense AdvertisingExpense	1800000	USD
CY2019	infn	Foreign Currency Transaction Gain Loss ForeignCurrencyTransactionGainLoss	-3700000	USD
CY2018	infn	Foreign Currency Transaction Gain Loss ForeignCurrencyTransactionGainLoss	-2500000	USD
CY2017	infn	Foreign Currency Transaction Gain Loss ForeignCurrencyTransactionGainLoss	-300000	USD
CY2018Q4	infn	Reserve For Sales Returns ReserveForSalesReturns	3500000	USD
CY2017Q4	infn	Reserve For Sales Returns ReserveForSalesReturns	4300000	USD
CY2016Q4	infn	Reserve For Sales Returns ReserveForSalesReturns	900000	USD
CY2019	us-gaap	Concentration Risk Credit Risk ConcentrationRiskCreditRisk	<div style="line-height:120%;padding-top:18px;font-size:9pt;"><span style="font-family:Arial;font-size:9pt;font-style:italic;font-weight:bold;">Concentration of Risk</span></div><div style="line-height:120%;padding-top:6px;text-indent:48px;font-size:9pt;"><span style="font-family:Arial;font-size:9pt;">Financial instruments that are potentially subject to concentrations of credit risk consist primarily of cash and cash equivalents, restricted cash and accounts receivable. </span></div><div style="line-height:120%;padding-top:12px;text-indent:48px;font-size:9pt;"><span style="font-family:Arial;font-size:9pt;">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="line-height:120%;padding-top:12px;text-indent:48px;font-size:9pt;"><span style="font-family:Arial;font-size:9pt;">As of December 28, 2019, </span><span style="font-family:Arial;font-size:9pt;">one</span><span style="font-family:Arial;font-size:9pt;"> customer accounted for over 10% of the Company's net accounts receivable balance. As of December 29, 2018, </span><span style="font-family:Arial;font-size:9pt;">no</span><span style="font-family:Arial;font-size:9pt;"> customers accounted for over 10% of the Company's net accounts receivable balance.</span></div><div style="line-height:120%;padding-top:12px;text-indent:48px;font-size:9pt;"><span style="font-family:Arial;font-size:9pt;">To date, a few of the Company’s customers have accounted for a significant portion of its revenue. One customer accounted for approximately </span><span style="font-family:Arial;font-size:9pt;"><span>13%</span></span><span style="font-family:Arial;font-size:9pt;"> of the Company's revenue in each of 2019 and 2018. This same customer completed a merger with another customer in 2017, and these two customers accounted for approximately </span><span style="font-family:Arial;font-size:9pt;"><span>6%</span></span><span style="font-family:Arial;font-size:9pt;"> and </span><span style="font-family:Arial;font-size:9pt;"><span>12%</span></span><span style="font-family:Arial;font-size:9pt;"> of the Company's revenue in 2017, respectively. One other customer accounted for approximately </span><span style="font-family:Arial;font-size:9pt;"><span>15%</span></span><span style="font-family:Arial;font-size:9pt;"> of the Company's revenue in 2018. No other customers accounted for over 10% of the Company's revenue in 2019, 2018 or 2017.</span></div><div style="line-height:120%;padding-top:12px;text-indent:48px;font-size:9pt;"><span style="font-family:Arial;font-size:9pt;">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>
CY2019	infn	Software Warranty Period SoftwareWarrantyPeriod	P90D
CY2019Q4	us-gaap	Lessee Operating Lease Renewal Term LesseeOperatingLeaseRenewalTerm	P5Y
CY2018Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	342820000	USD
CY2018Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	168434000	USD
CY2018Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	78855000	USD
CY2018Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	14849000	USD
CY2018Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	9965000	USD
CY2018Q4	us-gaap	Accounts Payable And Other Accrued Liabilities Current AccountsPayableAndOtherAccruedLiabilitiesCurrent	131891000	USD
CY2018Q4	us-gaap	Accounts Payable And Other Accrued Liabilities Current AccountsPayableAndOtherAccruedLiabilitiesCurrent	124548000	USD
CY2018Q4	us-gaap	Finance Lease Liability Noncurrent FinanceLeaseLiabilityNoncurrent	193538000	USD
CY2018Q4	us-gaap	Finance Lease Liability Noncurrent FinanceLeaseLiabilityNoncurrent	0	USD
CY2018Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	68082000	USD
CY2018Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	63175000	USD
CY2018Q4	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	0	USD
CY2018Q4	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	19209000	USD
CY2018Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	62467000	USD
CY2018Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	-956970000	USD
CY2018Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	-933273000	USD
CY2019	us-gaap	Operating Lease Expense OperatingLeaseExpense	41500000	USD
CY2019	infn	Operating Lease Accelerated Rent Expense OperatingLeaseAcceleratedRentExpense	15900000	USD
CY2019Q4	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	18100000	USD
CY2019Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	64200000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due Next Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths	24717000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	18265000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	15488000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	12208000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Five LesseeOperatingLeaseLiabilityPaymentsDueYearFive	10212000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due After Year Five LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive	36124000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	117014000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	34698000	USD
CY2019Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	82316000	USD
CY2019Q4	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P7Y4M17D
CY2019Q4	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.0910
CY2019	us-gaap	Operating Lease Payments OperatingLeasePayments	27027000	USD
CY2019	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	21847000	USD
CY2019Q4	us-gaap	Operating Leases Future Minimum Payments Due Current OperatingLeasesFutureMinimumPaymentsDueCurrent	18352000	USD
CY2019Q4	us-gaap	Operating Leases Future Minimum Payments Due In Two Years OperatingLeasesFutureMinimumPaymentsDueInTwoYears	14047000	USD
CY2019Q4	us-gaap	Operating Leases Future Minimum Payments Due In Three Years OperatingLeasesFutureMinimumPaymentsDueInThreeYears	7888000	USD
CY2019Q4	us-gaap	Operating Leases Future Minimum Payments Due In Four Years OperatingLeasesFutureMinimumPaymentsDueInFourYears	5926000	USD
CY2019Q4	us-gaap	Operating Leases Future Minimum Payments Due In Five Years OperatingLeasesFutureMinimumPaymentsDueInFiveYears	4905000	USD
CY2019Q4	us-gaap	Operating Leases Future Minimum Payments Due Thereafter OperatingLeasesFutureMinimumPaymentsDueThereafter	18303000	USD
CY2019Q4	us-gaap	Operating Leases Future Minimum Payments Due OperatingLeasesFutureMinimumPaymentsDue	69421000	USD
CY2019	infn	Finance Lease Cost FinanceLeaseCost	500000	USD
CY2019	us-gaap	Finance Lease Right Of Use Asset Amortization FinanceLeaseRightOfUseAssetAmortization	400000	USD
CY2019	us-gaap	Finance Lease Interest Expense FinanceLeaseInterestExpense	100000	USD
CY2019Q4	us-gaap	Finance Lease Liability Current FinanceLeaseLiabilityCurrent	1400000	USD
CY2019Q4	us-gaap	Finance Lease Liability Noncurrent FinanceLeaseLiabilityNoncurrent	2400000	USD
CY2019Q4	us-gaap	Finance Lease Liability Payments Due Next Twelve Months FinanceLeaseLiabilityPaymentsDueNextTwelveMonths	1563000	USD
CY2019Q4	us-gaap	Finance Lease Liability Payments Due Year Two FinanceLeaseLiabilityPaymentsDueYearTwo	1204000	USD
CY2019Q4	us-gaap	Finance Lease Liability Payments Due Year Three FinanceLeaseLiabilityPaymentsDueYearThree	936000	USD
CY2019Q4	us-gaap	Finance Lease Liability Payments Due Year Four FinanceLeaseLiabilityPaymentsDueYearFour	406000	USD
CY2019Q4	us-gaap	Finance Lease Liability Payments Due Year Five FinanceLeaseLiabilityPaymentsDueYearFive	0	USD
CY2019Q4	us-gaap	Finance Lease Liability Payments Due FinanceLeaseLiabilityPaymentsDue	4109000	USD
CY2019Q4	us-gaap	Finance Lease Liability Undiscounted Excess Amount FinanceLeaseLiabilityUndiscountedExcessAmount	335000	USD
CY2019Q4	us-gaap	Finance Lease Liability FinanceLeaseLiability	3774000	USD
CY2019Q4	us-gaap	Finance Lease Weighted Average Remaining Lease Term1 FinanceLeaseWeightedAverageRemainingLeaseTerm1	P3Y10D
CY2019Q4	us-gaap	Finance Lease Weighted Average Discount Rate Percent FinanceLeaseWeightedAverageDiscountRatePercent	0.0700
CY2019	infn	Finance Lease Payments FinanceLeasePayments	163000	USD
CY2019	us-gaap	Right Of Use Asset Obtained In Exchange For Finance Lease Liability RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability	4258000	USD
CY2019	infn	Number Of Sale Leaseback Transactions NumberOfSaleLeasebackTransactions	2	transaction
CY2019	infn	Sale Leaseback Transaction Reimbursement Expense SaleLeasebackTransactionReimbursementExpense	31500000	USD
CY2019	infn	Sale Leaseback Transaction Reimbursement Term SaleLeasebackTransactionReimbursementTerm	P10Y
CY2019Q4	us-gaap	Capitalized Contract Cost Net CapitalizedContractCostNet	200000	USD
CY2018Q4	us-gaap	Capitalized Contract Cost Net CapitalizedContractCostNet	400000	USD
CY2019	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	1298865000	USD
CY2018	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	943379000	USD
CY2017	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	740739000	USD
CY2019	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	1298865000	USD
CY2018	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	943379000	USD
CY2017	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	740739000	USD
CY2019	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	1298865000	USD
CY2018	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	943379000	USD
CY2017	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	740739000	USD
CY2019Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	349645000	USD
CY2018Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	317115000	USD
CY2019Q4	us-gaap	Contract With Customer Asset Net ContractWithCustomerAssetNet	22814000	USD
CY2018Q4	us-gaap	Contract With Customer Asset Net ContractWithCustomerAssetNet	24981000	USD
CY2019Q4	us-gaap	Contract With Customer Liability ContractWithCustomerLiability	139820000	USD
CY2018Q4	us-gaap	Contract With Customer Liability ContractWithCustomerLiability	120302000	USD
CY2019	us-gaap	Contract With Customer Liability Revenue Recognized ContractWithCustomerLiabilityRevenueRecognized	119900000	USD
CY2018	us-gaap	Contract With Customer Liability Revenue Recognized ContractWithCustomerLiabilityRevenueRecognized	44400000	USD
CY2019Q4	us-gaap	Revenue Remaining Performance Obligation RevenueRemainingPerformanceObligation	488149000	USD
CY2019Q4	us-gaap	Revenue Remaining Performance Obligation RevenueRemainingPerformanceObligation	37579000	USD
CY2019Q4	us-gaap	Revenue Remaining Performance Obligation RevenueRemainingPerformanceObligation	12449000	USD
CY2019Q4	us-gaap	Revenue Remaining Performance Obligation RevenueRemainingPerformanceObligation	6361000	USD
CY2019Q4	us-gaap	Revenue Remaining Performance Obligation RevenueRemainingPerformanceObligation	1596000	USD
CY2019Q4	us-gaap	Revenue Remaining Performance Obligation RevenueRemainingPerformanceObligation	811000	USD
CY2019Q4	us-gaap	Revenue Remaining Performance Obligation RevenueRemainingPerformanceObligation	546945000	USD
CY2018	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	943379000	USD
CY2018	us-gaap	Cost Of Revenue CostOfRevenue	622223000	USD
CY2018	us-gaap	Net Income Loss NetIncomeLoss	-214295000	USD
CY2018	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	-1.36
CY2018	us-gaap	Business Exit Costs1 BusinessExitCosts1	15900000	USD
CY2019Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	109201000	USD
CY2019Q4	infn	Cash And Cash Equivalents Accumulated Gross Unrealized Gains CashAndCashEquivalentsAccumulatedGrossUnrealizedGains	0	USD
CY2019Q4	us-gaap	Cash And Cash Equivalents Fair Value Disclosure CashAndCashEquivalentsFairValueDisclosure	109201000	USD
CY2018Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	202953000	USD
CY2018Q4	infn	Cash And Cash Equivalents Accumulated Gross Unrealized Gains CashAndCashEquivalentsAccumulatedGrossUnrealizedGains	1000	USD
CY2018Q4	us-gaap	Cash And Cash Equivalents Fair Value Disclosure CashAndCashEquivalentsFairValueDisclosure	202954000	USD
CY2018Q4	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	26603000	USD
CY2018Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	0	USD
CY2018Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	92000	USD
CY2018Q4	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	26511000	USD
CY2018Q4	us-gaap	Cash Cash Equivalents And Short Term Investments CashCashEquivalentsAndShortTermInvestments	229556000	USD
CY2018Q4	infn	Cash Cash Equivalents And Short Term Investments Accumulated Gross Unrealized Gains CashCashEquivalentsAndShortTermInvestmentsAccumulatedGrossUnrealizedGains	1000	USD
CY2018Q4	infn	Cash Cash Equivalents And Short Term Investments Accumulated Gross Unrealized Loss CashCashEquivalentsAndShortTermInvestmentsAccumulatedGrossUnrealizedLoss	92000	USD
CY2018Q4	infn	Cash Cash Equivalents And Shortterm Investments Fair Value Disclosure CashCashEquivalentsAndShorttermInvestmentsFairValueDisclosure	229465000	USD
CY2019Q4	us-gaap	Cash Cash Equivalents And Short Term Investments CashCashEquivalentsAndShortTermInvestments	109200000	USD
CY2019Q4	us-gaap	Restricted Cash Noncurrent RestrictedCashNoncurrent	900000	USD
CY2018Q4	us-gaap	Restricted Cash Noncurrent RestrictedCashNoncurrent	900000	USD
CY2019	us-gaap	Derivative Instruments Not Designated As Hedging Instruments Gain Loss Net DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet	500000	USD
CY2018	us-gaap	Derivative Instruments Not Designated As Hedging Instruments Gain Loss Net DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet	700000	USD
CY2017	us-gaap	Derivative Instruments Not Designated As Hedging Instruments Gain Loss Net DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet	-3500000	USD
CY2019	us-gaap	Goodwill Period Increase Decrease GoodwillPeriodIncreaseDecrease	30900000	USD
CY2018Q4	us-gaap	Goodwill Goodwill	227231000	USD
CY2019	us-gaap	Goodwill Foreign Currency Translation Gain Loss GoodwillForeignCurrencyTranslationGainLoss	-8299000	USD
CY2019	us-gaap	Goodwill Purchase Accounting Adjustments GoodwillPurchaseAccountingAdjustments	30916000	USD
CY2019Q4	us-gaap	Goodwill Goodwill	249848000	USD
CY2019Q4	us-gaap	Goodwill Impaired Accumulated Impairment Loss GoodwillImpairedAccumulatedImpairmentLoss	0	USD
CY2019Q4	us-gaap	Intangible Assets Gross Excluding Goodwill IntangibleAssetsGrossExcludingGoodwill	336535000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	166189000	USD
CY2019Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	170346000	USD
CY2018Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	325465000	USD
CY2018Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	110096000	USD
CY2018Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	215369000	USD
CY2018Q4	us-gaap	Intangible Assets Gross Excluding Goodwill IntangibleAssetsGrossExcludingGoodwill	343215000	USD
CY2018Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	110096000	USD
CY2018Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	233119000	USD
CY2019	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	59900000	USD
CY2018	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	52800000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	170346000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Next Twelve Months FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths	47681000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Two FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo	35275000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Three FiniteLivedIntangibleAssetsAmortizationExpenseYearThree	32755000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Four FiniteLivedIntangibleAssetsAmortizationExpenseYearFour	26876000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Five FiniteLivedIntangibleAssetsAmortizationExpenseYearFive	27759000	USD
CY2019Q4	us-gaap	Inventory Raw Materials InventoryRawMaterials	47474000	USD
CY2018Q4	us-gaap	Inventory Raw Materials InventoryRawMaterials	74435000	USD
CY2019Q4	us-gaap	Inventory Work In Process InventoryWorkInProcess	48842000	USD
CY2018Q4	us-gaap	Inventory Finished Goods InventoryFinishedGoods	180221000	USD
CY2019Q4	us-gaap	Inventory Net InventoryNet	340429000	USD
CY2018Q4	us-gaap	Inventory Work In Process InventoryWorkInProcess	57232000	USD
CY2019Q4	us-gaap	Inventory Finished Goods InventoryFinishedGoods	244113000	USD
CY2018Q4	us-gaap	Inventory Net InventoryNet	311888000	USD
CY2019Q4	infn	Property Plant And Equipment And Finance Lease Rightof Use Asset Before Accumulated Depreciation And Amortization PropertyPlantAndEquipmentAndFinanceLeaseRightofUseAssetBeforeAccumulatedDepreciationAndAmortization	489998000	USD
CY2018Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	630251000	USD
CY2019Q4	infn	Property Plant And Equipment And Finance Lease Rightof Use Asset Accumulated Depreciation And Amortization PropertyPlantAndEquipmentAndFinanceLeaseRightofUseAssetAccumulatedDepreciationAndAmortization	339205000	USD
CY2018Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	287431000	USD
CY2019Q4	infn	Property Plant And Equipment And Finance Lease Rightof Use Asset After Accumulated Depreciation And Amortization PropertyPlantAndEquipmentAndFinanceLeaseRightofUseAssetAfterAccumulatedDepreciationAndAmortization	150793000	USD
CY2018Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	342820000	USD
CY2019Q4	infn	Loss Contingency Related To Non Cancelable Purchase Commitments LossContingencyRelatedToNonCancelablePurchaseCommitments	24812000	USD
CY2018Q4	infn	Loss Contingency Related To Non Cancelable Purchase Commitments LossContingencyRelatedToNonCancelablePurchaseCommitments	26042000	USD
CY2019Q4	us-gaap	Accrued Professional Fees Current AccruedProfessionalFeesCurrent	12296000	USD
CY2018Q4	us-gaap	Accrued Professional Fees Current AccruedProfessionalFeesCurrent	10442000	USD
CY2019Q4	us-gaap	Taxes Payable Current TaxesPayableCurrent	65815000	USD
CY2018Q4	us-gaap	Taxes Payable Current TaxesPayableCurrent	23249000	USD
CY2019Q4	infn	Accrued Rebate And Customer Prepay Liability Current AccruedRebateAndCustomerPrepayLiabilityCurrent	4390000	USD
CY2018Q4	infn	Accrued Rebate And Customer Prepay Liability Current AccruedRebateAndCustomerPrepayLiabilityCurrent	14301000	USD
CY2019Q4	us-gaap	Restructuring Reserve Current RestructuringReserveCurrent	26076000	USD
CY2018Q4	us-gaap	Restructuring Reserve Current RestructuringReserveCurrent	13097000	USD
CY2019Q4	infn	Acquisition Related Funds In Escrow AcquisitionRelatedFundsInEscrow	0	USD
CY2018Q4	infn	Acquisition Related Funds In Escrow AcquisitionRelatedFundsInEscrow	10000000	USD
CY2019Q4	us-gaap	Finance Lease Liability Current FinanceLeaseLiabilityCurrent	1380000	USD
CY2018Q4	us-gaap	Finance Lease Liability Current FinanceLeaseLiabilityCurrent	4718000	USD
CY2019Q4	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	18106000	USD
CY2019Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	40293000	USD
CY2018Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	30042000	USD
CY2019Q4	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	193168000	USD
CY2018Q4	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	131891000	USD
CY2019	us-gaap	Depreciation Depreciation	60000000.0	USD
CY2018	us-gaap	Depreciation Depreciation	47700000	USD
CY2017	us-gaap	Depreciation Depreciation	39400000	USD
CY2018Q4	us-gaap	Restructuring Reserve RestructuringReserve	24351000	USD
CY2019	infn	Restructuring Charges Additions From Acquisitions RestructuringChargesAdditionsFromAcquisitions	0	USD
CY2019	us-gaap	Restructuring Charges RestructuringCharges	70786000	USD
CY2019	us-gaap	Payments For Restructuring PaymentsForRestructuring	51797000	USD
CY2019	us-gaap	Restructuring Reserve Settled Without Cash2 RestructuringReserveSettledWithoutCash2	13937000	USD
CY2019Q4	us-gaap	Restructuring Reserve RestructuringReserve	29403000	USD
CY2016Q4	us-gaap	Aoci Tax Attributable To Parent AociTaxAttributableToParent	879000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Before Reclassifications Tax OtherComprehensiveIncomeLossBeforeReclassificationsTax	0	USD
CY2017	us-gaap	Oci Before Reclassifications Net Of Tax Attributable To Parent OciBeforeReclassificationsNetOfTaxAttributableToParent	34578000	USD
CY2017	us-gaap	Reclassification From Aoci Current Period Tax ReclassificationFromAociCurrentPeriodTax	0	USD
CY2017	us-gaap	Reclassification From Accumulated Other Comprehensive Income Current Period Net Of Tax ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax	0	USD
CY2017	us-gaap	Other Comprehensive Income Loss Tax OtherComprehensiveIncomeLossTax	0	USD
CY2017	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	34578000	USD
CY2017Q4	us-gaap	Aoci Tax Attributable To Parent AociTaxAttributableToParent	879000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Before Reclassifications Tax OtherComprehensiveIncomeLossBeforeReclassificationsTax	85000	USD
CY2018	us-gaap	Oci Before Reclassifications Net Of Tax Attributable To Parent OciBeforeReclassificationsNetOfTaxAttributableToParent	-31788000	USD
CY2018	us-gaap	Reclassification From Aoci Current Period Tax ReclassificationFromAociCurrentPeriodTax	0	USD
CY2018	us-gaap	Reclassification From Accumulated Other Comprehensive Income Current Period Net Of Tax ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax	-234000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Tax OtherComprehensiveIncomeLossTax	85000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-31554000	USD
CY2018Q4	us-gaap	Aoci Tax Attributable To Parent AociTaxAttributableToParent	964000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Before Reclassifications Tax OtherComprehensiveIncomeLossBeforeReclassificationsTax	0	USD
CY2019	us-gaap	Oci Before Reclassifications Net Of Tax Attributable To Parent OciBeforeReclassificationsNetOfTaxAttributableToParent	-10977000	USD
CY2019	us-gaap	Reclassification From Aoci Current Period Tax ReclassificationFromAociCurrentPeriodTax	0	USD
CY2019	us-gaap	Reclassification From Accumulated Other Comprehensive Income Current Period Net Of Tax ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax	-1638000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Tax OtherComprehensiveIncomeLossTax	0	USD
CY2019	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-9339000	USD
CY2019Q4	us-gaap	Aoci Tax Attributable To Parent AociTaxAttributableToParent	964000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	-386618000	USD
CY2018	us-gaap	Net Income Loss NetIncomeLoss	-214295000	USD
CY2017	us-gaap	Net Income Loss NetIncomeLoss	-194506000	USD
CY2019	us-gaap	Weighted Average Number Of Share Outstanding Basic And Diluted WeightedAverageNumberOfShareOutstandingBasicAndDiluted	178984000	shares
CY2018	us-gaap	Weighted Average Number Of Share Outstanding Basic And Diluted WeightedAverageNumberOfShareOutstandingBasicAndDiluted	157748000	shares
CY2017	us-gaap	Weighted Average Number Of Share Outstanding Basic And Diluted WeightedAverageNumberOfShareOutstandingBasicAndDiluted	147878000	shares
CY2019	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	-2.16
CY2018	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	-1.36
CY2017	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	-1.32
CY2019	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	15607000	shares
CY2018	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	11150000	shares
CY2017	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	10547000	shares
CY2019Q4	us-gaap	Share Price SharePrice	7.78
CY2019Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	4700000	USD
CY2018Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	5400000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due Next Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths	24717000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	18265000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	15488000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	12208000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Five LesseeOperatingLeaseLiabilityPaymentsDueYearFive	10212000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due After Year Five LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive	36124000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	117014000	USD
CY2019Q4	infn	Number Of Finance Leases NumberOfFinanceLeases	2	lease
CY2019Q4	us-gaap	Finance Lease Liability Payments Due Next Twelve Months FinanceLeaseLiabilityPaymentsDueNextTwelveMonths	1563000	USD
CY2019Q4	us-gaap	Finance Lease Liability Payments Due Year Two FinanceLeaseLiabilityPaymentsDueYearTwo	1204000	USD
CY2019Q4	us-gaap	Finance Lease Liability Payments Due Year Three FinanceLeaseLiabilityPaymentsDueYearThree	936000	USD
CY2019Q4	us-gaap	Finance Lease Liability Payments Due Year Four FinanceLeaseLiabilityPaymentsDueYearFour	406000	USD
CY2019Q4	us-gaap	Finance Lease Liability Payments Due Year Five FinanceLeaseLiabilityPaymentsDueYearFive	0	USD
CY2019Q4	us-gaap	Finance Lease Liability Payments Due After Year Five FinanceLeaseLiabilityPaymentsDueAfterYearFive	0	USD
CY2019Q4	us-gaap	Finance Lease Liability Payments Due FinanceLeaseLiabilityPaymentsDue	4109000	USD
CY2019Q4	us-gaap	Purchase Obligation PurchaseObligation	258200000	USD
CY2018Q4	us-gaap	Purchase Obligation PurchaseObligation	203500000	USD
CY2017Q4	us-gaap	Purchase Obligation PurchaseObligation	96100000	USD
CY2019Q4	us-gaap	Purchase Obligation Due In Next Twelve Months PurchaseObligationDueInNextTwelveMonths	255427000	USD
CY2019Q4	us-gaap	Purchase Obligation Due In Second Year PurchaseObligationDueInSecondYear	1553000	USD
CY2019Q4	us-gaap	Purchase Obligation Due In Third Year PurchaseObligationDueInThirdYear	1154000	USD
CY2019Q4	us-gaap	Purchase Obligation Due In Fourth Year PurchaseObligationDueInFourthYear	43000	USD
CY2019Q4	us-gaap	Purchase Obligation Due In Fifth Year PurchaseObligationDueInFifthYear	0	USD
CY2019Q4	us-gaap	Purchase Obligation Due After Fifth Year PurchaseObligationDueAfterFifthYear	0	USD
CY2019Q4	us-gaap	Purchase Obligation PurchaseObligation	258177000	USD
CY2018Q4	infn	Liability For Uncertain Tax Positions LiabilityForUncertainTaxPositions	4100000	USD
CY2018Q4	us-gaap	Product Warranty Accrual ProductWarrantyAccrual	41021000	USD
CY2017Q4	us-gaap	Product Warranty Accrual ProductWarrantyAccrual	30909000	USD
CY2019	us-gaap	Product Warranty Expense ProductWarrantyExpense	23874000	USD
CY2018	us-gaap	Product Warranty Expense ProductWarrantyExpense	28685000	USD
CY2019	us-gaap	Product Warranty Accrual Payments ProductWarrantyAccrualPayments	25070000	USD
CY2018	us-gaap	Product Warranty Accrual Payments ProductWarrantyAccrualPayments	18028000	USD
CY2019	us-gaap	Standard Product Warranty Accrual Preexisting Increase Decrease StandardProductWarrantyAccrualPreexistingIncreaseDecrease	3523000	USD
CY2018	us-gaap	Standard Product Warranty Accrual Preexisting Increase Decrease StandardProductWarrantyAccrualPreexistingIncreaseDecrease	-545000	USD
CY2019Q4	us-gaap	Product Warranty Accrual ProductWarrantyAccrual	43348000	USD
CY2018Q4	us-gaap	Product Warranty Accrual ProductWarrantyAccrual	41021000	USD
CY2019Q4	infn	Outstanding Standby Letters Of Credit OutstandingStandbyLettersOfCredit	27900000	USD
CY2018Q4	infn	Outstanding Standby Letters Of Credit OutstandingStandbyLettersOfCredit	30000000.0	USD
CY2019Q4	us-gaap	Debt Instrument Collateral Amount DebtInstrumentCollateralAmount	180900000	USD
CY2018Q4	us-gaap	Debt Instrument Collateral Amount DebtInstrumentCollateralAmount	4900000	USD
CY2019Q4	infn	Shares Subject To Options And Restricted Stock Or Rsu Awards SharesSubjectToOptionsAndRestrictedStockOrRsuAwards	14835000	shares
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Available For Grant ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant	8149000	shares
CY2019Q4	infn	Shares Of Common Stock Reserved For Future Issuance Under Espp SharesOfCommonStockReservedForFutureIssuanceUnderEspp	12438000	shares
CY2019Q4	us-gaap	Common Stock Capital Shares Reserved For Future Issuance CommonStockCapitalSharesReservedForFutureIssuance	35422000	shares
CY2016Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	1655000	shares
CY2016Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	8.30
CY2016Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue	965000	USD
CY2017	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross	0	shares
CY2017	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice	0
CY2017	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	196000	shares
CY2017	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	7.78
CY2017	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	373000	USD
CY2017	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod	62000	shares
CY2017	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Forfeitures In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice	14.11
CY2017Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	1397000	shares
CY2017Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	8.11
CY2017Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue	1000	USD
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross	0	shares
CY2018	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice	0
CY2018	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	229000	shares
CY2018	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	7.43
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	496000	USD
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod	53000	shares
CY2018	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Forfeitures In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice	11.57
CY2018Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	1115000	shares
CY2018Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	8.09
CY2018Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue	0	USD
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross	0	shares
CY2019	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice	0
CY2019	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	0	shares
CY2019	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	0
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	0	USD
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod	385000	shares
CY2019	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Forfeitures In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice	7.47
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	730000	shares
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Exercisable Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableNumber	730000	shares
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	8.41
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue	0	USD
CY2019Q4	us-gaap	Share Price SharePrice	7.78
CY2019Q4	us-gaap	Share Price SharePrice	7.78
CY2017	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue	11.83
CY2019Q4	us-gaap	Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Number Of Outstanding Options ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfOutstandingOptions	730000	shares
CY2019Q4	us-gaap	Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Number Of Exercisable Options ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfExercisableOptions	730000	shares
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
CY2017	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Expected Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1	P0Y6M
CY2019	infn	Allocated Share Based Compensation Expense Before Amortization Of Prior Periods Deferred Inventory Cost AllocatedShareBasedCompensationExpenseBeforeAmortizationOfPriorPeriodsDeferredInventoryCost	38073000	USD
CY2018	infn	Allocated Share Based Compensation Expense Before Amortization Of Prior Periods Deferred Inventory Cost AllocatedShareBasedCompensationExpenseBeforeAmortizationOfPriorPeriodsDeferredInventoryCost	38423000	USD
CY2017	infn	Allocated Share Based Compensation Expense Before Amortization Of Prior Periods Deferred Inventory Cost AllocatedShareBasedCompensationExpenseBeforeAmortizationOfPriorPeriodsDeferredInventoryCost	40974000	USD
CY2019	infn	Amortization Of Deferred Inventory Cost Recognized As Share Based Compensation Expense AmortizationOfDeferredInventoryCostRecognizedAsShareBasedCompensationExpense	4706000	USD
CY2018	infn	Amortization Of Deferred Inventory Cost Recognized As Share Based Compensation Expense AmortizationOfDeferredInventoryCostRecognizedAsShareBasedCompensationExpense	4986000	USD
CY2017	infn	Amortization Of Deferred Inventory Cost Recognized As Share Based Compensation Expense AmortizationOfDeferredInventoryCostRecognizedAsShareBasedCompensationExpense	4746000	USD
CY2019	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	42779000	USD
CY2018	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	43409000	USD
CY2017	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	45720000	USD
CY2019	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	0	USD
CY2018	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	0	USD
CY2017	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	0	USD
CY2019	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	288000	USD
CY2018	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	186000	USD
CY2017	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	69000	USD
CY2019	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	3046000	USD
CY2018	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	6832000	USD
CY2017	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	4679000	USD
CY2019	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	3334000	USD
CY2018	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	7018000	USD
CY2017	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	4748000	USD
CY2019	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	369000	USD
CY2018	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-546000	USD
CY2017	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	0	USD
CY2019	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	0	USD
CY2018	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	0	USD
CY2017	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	0	USD
CY2019	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	-740000	USD
CY2018	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	-7127000	USD
CY2017	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	-6178000	USD
CY2019	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-371000	USD
CY2018	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-7673000	USD
CY2017	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-6178000	USD
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	2963000	USD
CY2018	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-655000	USD
CY2017	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-1430000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	-202200000	USD
CY2018	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	-135500000	USD
CY2017	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	-22600000	USD
CY2019	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210
CY2018	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210
CY2017	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.350
CY2019	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	-0.001
CY2018	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	-0.001
CY2017	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits Research EffectiveIncomeTaxRateReconciliationTaxCreditsResearch	-0.010
CY2018	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits Research EffectiveIncomeTaxRateReconciliationTaxCreditsResearch	-0.018
CY2017	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits Research EffectiveIncomeTaxRateReconciliationTaxCreditsResearch	-0.018
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Share Based Compensation Cost EffectiveIncomeTaxRateReconciliationNondeductibleExpenseShareBasedCompensationCost	-0.020
CY2018	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Share Based Compensation Cost EffectiveIncomeTaxRateReconciliationNondeductibleExpenseShareBasedCompensationCost	-0.008
CY2017	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Share Based Compensation Cost EffectiveIncomeTaxRateReconciliationNondeductibleExpenseShareBasedCompensationCost	-0.060
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Change In Deferred Tax Assets Valuation Allowance EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance	-0.197
CY2018	us-gaap	Effective Income Tax Rate Reconciliation Change In Deferred Tax Assets Valuation Allowance EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance	-0.181
CY2017	us-gaap	Effective Income Tax Rate Reconciliation Change In Deferred Tax Assets Valuation Allowance EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance	-0.268
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential	-0.002
CY2018	us-gaap	Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential	-0.029
CY2017	us-gaap	Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential	-0.033
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	-0.008
CY2018	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	-0.006
CY2017	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	0
CY2019	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	-0.008
CY2018	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.003
CY2017	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.007
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	3000000.0	USD
CY2019	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	-0.008
CY2019	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.21
CY2018	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-700000	USD
CY2017	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-1400000	USD
CY2018	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.003
CY2017	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.007
CY2019Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	301929000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	257928000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards Research DeferredTaxAssetsTaxCreditCarryforwardsResearch	121065000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards Research DeferredTaxAssetsTaxCreditCarryforwardsResearch	221943000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Accrued Liabilities DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities	72094000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Accrued Liabilities DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities	50312000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Inventory DeferredTaxAssetsInventory	31982000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Inventory DeferredTaxAssetsInventory	39430000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Property Plant And Equipment DeferredTaxAssetsPropertyPlantAndEquipment	4601000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Property Plant And Equipment DeferredTaxAssetsPropertyPlantAndEquipment	2591000	USD
CY2019Q4	infn	Deferred Tax Assets Leasing Liabilities DeferredTaxAssetsLeasingLiabilities	19265000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Share Based Compensation Cost DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost	3998000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Share Based Compensation Cost DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost	4825000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	554934000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	577029000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	484834000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	493157000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	70100000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	83872000	USD
CY2019Q4	us-gaap	Deferred Tax Liabilities Leasing Arrangements DeferredTaxLiabilitiesLeasingArrangements	0	USD
CY2018Q4	us-gaap	Deferred Tax Liabilities Leasing Arrangements DeferredTaxLiabilitiesLeasingArrangements	16802000	USD
CY2019Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	0	USD
CY2018Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	199000	USD
CY2019Q4	us-gaap	Deferred Tax Liabilities Prepaid Expenses DeferredTaxLiabilitiesPrepaidExpenses	830000	USD
CY2018Q4	us-gaap	Deferred Tax Liabilities Prepaid Expenses DeferredTaxLiabilitiesPrepaidExpenses	784000	USD
CY2019Q4	infn	Deferred Tax Liabilities Right Of Use Assets DeferredTaxLiabilitiesRightOfUseAssets	16261000	USD
CY2019Q4	us-gaap	Deferred Tax Liabilities Goodwill And Intangible Assets Intangible Assets DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets	34542000	USD
CY2018Q4	us-gaap	Deferred Tax Liabilities Goodwill And Intangible Assets Intangible Assets DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets	49406000	USD
CY2019Q4	us-gaap	Deferred Tax Liabilities Financing Arrangements DeferredTaxLiabilitiesFinancingArrangements	25417000	USD
CY2018Q4	us-gaap	Deferred Tax Liabilities Financing Arrangements DeferredTaxLiabilitiesFinancingArrangements	29419000	USD
CY2019Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	77050000	USD
CY2018Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	96610000	USD
CY2019Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	6950000	USD
CY2018Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	12738000	USD
CY2018Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	24617000	USD
CY2017Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	19786000	USD
CY2016Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	22282000	USD
CY2019	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	1965000	USD
CY2018	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	2296000	USD
CY2017	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	2234000	USD
CY2019	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	18212000	USD
CY2018	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	2981000	USD
CY2017	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	0	USD
CY2019	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	542000	USD
CY2018	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	40000	USD
CY2017	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	4728000	USD
CY2019	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	160000	USD
CY2018	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	406000	USD
CY2017	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	2000	USD
CY2019Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	44092000	USD
CY2018Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	24617000	USD
CY2017Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	19786000	USD
CY2019Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	44100000	USD
CY2019	infn	Offset To Deferred Tax Assets For Unrecognized Tax Benefits OffsetToDeferredTaxAssetsForUnrecognizedTaxBenefits	40800000	USD
CY2019Q4	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	3100000	USD
CY2019	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	18200000	USD
CY2019	infn	Percentage Of Rd Credit Not Sustained PercentageOfRDCreditNotSustained	1
CY2019	infn	Percentage Of Rd Credit Not Sustained PercentageOfRDCreditNotSustained	1
CY2019Q4	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued	1400000	USD
CY2018Q4	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued	1200000	USD
CY2017Q4	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued	700000	USD
CY2019Q4	infn	Unrecognized Tax Benefits Net UnrecognizedTaxBenefitsNet	800000	USD
CY2019	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	1	segment
CY2019Q4	infn	Property Plant And Equipment And Finance Lease Rightof Use Asset After Accumulated Depreciation And Amortization PropertyPlantAndEquipmentAndFinanceLeaseRightofUseAssetAfterAccumulatedDepreciationAndAmortization	150793000	USD
CY2018Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	342820000	USD
CY2019	us-gaap	Other Postretirement Benefit Expense OtherPostretirementBenefitExpense	3900000	USD
CY2018Q4	us-gaap	Defined Benefit Plan Benefit Obligation DefinedBenefitPlanBenefitObligation	104624000	USD
CY2017Q4	us-gaap	Defined Benefit Plan Benefit Obligation DefinedBenefitPlanBenefitObligation	106474000	USD
CY2019	us-gaap	Defined Benefit Plan Service Cost DefinedBenefitPlanServiceCost	2061000	USD
CY2018	us-gaap	Defined Benefit Plan Service Cost DefinedBenefitPlanServiceCost	466000	USD
CY2019	us-gaap	Defined Benefit Plan Interest Cost DefinedBenefitPlanInterestCost	2075000	USD
CY2018	us-gaap	Defined Benefit Plan Interest Cost DefinedBenefitPlanInterestCost	512000	USD
CY2019	us-gaap	Defined Benefit Plan Foreign Currency Exchange Rate Changes Benefit Obligation DefinedBenefitPlanForeignCurrencyExchangeRateChangesBenefitObligation	2735000	USD
CY2018	us-gaap	Defined Benefit Plan Foreign Currency Exchange Rate Changes Benefit Obligation DefinedBenefitPlanForeignCurrencyExchangeRateChangesBenefitObligation	2870000	USD
CY2019Q4	us-gaap	Defined Benefit Plan Benefit Obligation DefinedBenefitPlanBenefitObligation	113234000	USD
CY2019	us-gaap	Defined Benefit Plan Benefit Obligation Benefits Paid DefinedBenefitPlanBenefitObligationBenefitsPaid	1925000	USD
CY2018	us-gaap	Defined Benefit Plan Benefit Obligation Benefits Paid DefinedBenefitPlanBenefitObligationBenefitsPaid	194000	USD
CY2019	us-gaap	Defined Benefit Plan Actuarial Gain Loss DefinedBenefitPlanActuarialGainLoss	-9134000	USD
CY2018	us-gaap	Defined Benefit Plan Actuarial Gain Loss DefinedBenefitPlanActuarialGainLoss	-236000	USD
CY2019	us-gaap	Defined Benefit Plan Plan Assets Contributions By Plan Participant DefinedBenefitPlanPlanAssetsContributionsByPlanParticipant	715000	USD
CY2018	us-gaap	Defined Benefit Plan Plan Assets Contributions By Plan Participant DefinedBenefitPlanPlanAssetsContributionsByPlanParticipant	0	USD
CY2019	us-gaap	Defined Benefit Plan Contributions By Employer DefinedBenefitPlanContributionsByEmployer	53000	USD
CY2018	us-gaap	Defined Benefit Plan Contributions By Employer DefinedBenefitPlanContributionsByEmployer	0	USD
CY2019	infn	Defined Benefit Plan Plan Assets Actuarial Gain Loss DefinedBenefitPlanPlanAssetsActuarialGainLoss	6672000	USD
CY2018Q4	us-gaap	Defined Benefit Plan Benefit Obligation DefinedBenefitPlanBenefitObligation	104624000	USD
CY2018Q4	us-gaap	Defined Benefit Plan Fair Value Of Plan Assets DefinedBenefitPlanFairValueOfPlanAssets	63064000	USD
CY2017Q4	us-gaap	Defined Benefit Plan Fair Value Of Plan Assets DefinedBenefitPlanFairValueOfPlanAssets	69614000	USD
CY2019	us-gaap	Defined Benefit Plan Actual Return On Plan Assets DefinedBenefitPlanActualReturnOnPlanAssets	2371000	USD
CY2018	us-gaap	Defined Benefit Plan Actual Return On Plan Assets DefinedBenefitPlanActualReturnOnPlanAssets	653000	USD
CY2019	us-gaap	Defined Benefit Plan Plan Assets Benefits Paid DefinedBenefitPlanPlanAssetsBenefitsPaid	1397000	USD
CY2018	us-gaap	Defined Benefit Plan Plan Assets Benefits Paid DefinedBenefitPlanPlanAssetsBenefitsPaid	0	USD
CY2018	infn	Defined Benefit Plan Plan Assets Actuarial Gain Loss DefinedBenefitPlanPlanAssetsActuarialGainLoss	-5319000	USD
CY2019	us-gaap	Defined Benefit Plan Plan Assets Foreign Currency Translation Gain Loss DefinedBenefitPlanPlanAssetsForeignCurrencyTranslationGainLoss	-1701000	USD
CY2018	us-gaap	Defined Benefit Plan Plan Assets Foreign Currency Translation Gain Loss DefinedBenefitPlanPlanAssetsForeignCurrencyTranslationGainLoss	-1884000	USD
CY2019Q4	us-gaap	Defined Benefit Plan Fair Value Of Plan Assets DefinedBenefitPlanFairValueOfPlanAssets	69777000	USD
CY2018Q4	us-gaap	Defined Benefit Plan Fair Value Of Plan Assets DefinedBenefitPlanFairValueOfPlanAssets	63064000	USD
CY2019Q4	us-gaap	Defined Benefit Plan Funded Status Of Plan DefinedBenefitPlanFundedStatusOfPlan	-43457000	USD
CY2018Q4	us-gaap	Defined Benefit Plan Funded Status Of Plan DefinedBenefitPlanFundedStatusOfPlan	-41560000	USD
CY2019Q4	us-gaap	Defined Benefit Plan Accumulated Benefit Obligation DefinedBenefitPlanAccumulatedBenefitObligation	110800000	USD
CY2018Q4	us-gaap	Defined Benefit Plan Accumulated Benefit Obligation DefinedBenefitPlanAccumulatedBenefitObligation	100200000	USD
CY2019Q4	us-gaap	Defined Benefit Plan Assets For Plan Benefits Noncurrent DefinedBenefitPlanAssetsForPlanBenefitsNoncurrent	69777000	USD
CY2018Q4	us-gaap	Defined Benefit Plan Assets For Plan Benefits Noncurrent DefinedBenefitPlanAssetsForPlanBenefitsNoncurrent	63064000	USD
CY2019Q4	us-gaap	Pension And Other Postretirement Defined Benefit Plans Current Liabilities PensionAndOtherPostretirementDefinedBenefitPlansCurrentLiabilities	0	USD
CY2018Q4	us-gaap	Pension And Other Postretirement Defined Benefit Plans Current Liabilities PensionAndOtherPostretirementDefinedBenefitPlansCurrentLiabilities	901000	USD
CY2019Q4	us-gaap	Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent	113234000	USD
CY2018Q4	us-gaap	Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent	103723000	USD
CY2019Q4	us-gaap	Defined Benefit Plan Amounts Recognized In Balance Sheet DefinedBenefitPlanAmountsRecognizedInBalanceSheet	-43457000	USD
CY2018Q4	us-gaap	Defined Benefit Plan Amounts Recognized In Balance Sheet DefinedBenefitPlanAmountsRecognizedInBalanceSheet	-41560000	USD
CY2019	us-gaap	Defined Benefit Plan Service Cost DefinedBenefitPlanServiceCost	2061000	USD
CY2018	us-gaap	Defined Benefit Plan Service Cost DefinedBenefitPlanServiceCost	466000	USD
CY2019	us-gaap	Defined Benefit Plan Interest Cost DefinedBenefitPlanInterestCost	2075000	USD
CY2018	us-gaap	Defined Benefit Plan Interest Cost DefinedBenefitPlanInterestCost	512000	USD
CY2019	us-gaap	Defined Benefit Plan Expected Return On Plan Assets DefinedBenefitPlanExpectedReturnOnPlanAssets	2371000	USD
CY2018	us-gaap	Defined Benefit Plan Expected Return On Plan Assets DefinedBenefitPlanExpectedReturnOnPlanAssets	653000	USD
CY2019	us-gaap	Defined Benefit Plan Amortization Of Gains Losses DefinedBenefitPlanAmortizationOfGainsLosses	-1638000	USD
CY2018	us-gaap	Defined Benefit Plan Amortization Of Gains Losses DefinedBenefitPlanAmortizationOfGainsLosses	-234000	USD
CY2019	us-gaap	Defined Benefit Plan Net Periodic Benefit Cost DefinedBenefitPlanNetPeriodicBenefitCost	3403000	USD
CY2018	us-gaap	Defined Benefit Plan Net Periodic Benefit Cost DefinedBenefitPlanNetPeriodicBenefitCost	559000	USD
CY2018Q4	us-gaap	Defined Benefit Plan Accumulated Other Comprehensive Income Before Tax DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeBeforeTax	5313000	USD
CY2017Q4	us-gaap	Defined Benefit Plan Accumulated Other Comprehensive Income Before Tax DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeBeforeTax	0	USD
CY2019	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Net Unamortized Gain Loss Arising During Period Before Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansNetUnamortizedGainLossArisingDuringPeriodBeforeTax	-1680000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Net Unamortized Gain Loss Arising During Period Before Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansNetUnamortizedGainLossArisingDuringPeriodBeforeTax	-5562000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossBeforeTax	-1638000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossBeforeTax	-234000	USD
CY2019	infn	Other Comprehensive Income Loss Defined Benefit Plan Foreign Currency Translation Gain Loss Reclassification Adjustment From Aoci Before Tax OtherComprehensiveIncomeLossDefinedBenefitPlanForeignCurrencyTranslationGainLossReclassificationAdjustmentFromAOCIBeforeTax	-12000	USD
CY2018	infn	Other Comprehensive Income Loss Defined Benefit Plan Foreign Currency Translation Gain Loss Reclassification Adjustment From Aoci Before Tax OtherComprehensiveIncomeLossDefinedBenefitPlanForeignCurrencyTranslationGainLossReclassificationAdjustmentFromAOCIBeforeTax	15000	USD
CY2019Q4	us-gaap	Defined Benefit Plan Accumulated Other Comprehensive Income Before Tax DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeBeforeTax	5367000	USD
CY2018Q4	us-gaap	Defined Benefit Plan Accumulated Other Comprehensive Income Before Tax DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeBeforeTax	5313000	USD
CY2019Q4	us-gaap	Defined Benefit Plan Expected Amortization Of Gain Loss Next Fiscal Year DefinedBenefitPlanExpectedAmortizationOfGainLossNextFiscalYear	-1600000	USD
CY2019Q4	us-gaap	Defined Benefit Plan Assumptions Used Calculating Benefit Obligation Discount Rate DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationDiscountRate	0.0135
CY2018Q4	us-gaap	Defined Benefit Plan Assumptions Used Calculating Benefit Obligation Discount Rate DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationDiscountRate	0.0207
CY2019Q4	us-gaap	Defined Benefit Plan Assumptions Used Calculating Benefit Obligation Rate Of Compensation Increase DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationRateOfCompensationIncrease	0.0225
CY2018Q4	us-gaap	Defined Benefit Plan Assumptions Used Calculating Benefit Obligation Rate Of Compensation Increase DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationRateOfCompensationIncrease	0.0225
CY2019Q4	infn	Defined Benefit Plan Assumptions Used Calculating Benefit Obligation Rate Of Pension Increase DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationRateOfPensionIncrease	0.0200
CY2018Q4	infn	Defined Benefit Plan Assumptions Used Calculating Benefit Obligation Rate Of Pension Increase DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationRateOfPensionIncrease	0.0200
CY2019	infn	Defined Pension Plan Average Life Expectancy During Retirement Retiring At End Of Period DefinedPensionPlanAverageLifeExpectancyDuringRetirementRetiringAtEndOfPeriod	P20Y6M
CY2019	infn	Defined Pension Plan Average Life Expectancy During Retirement Male DefinedPensionPlanAverageLifeExpectancyDuringRetirementMale	P20Y
CY2019	infn	Defined Pension Plan Average Life Expectancy During Retirement Female DefinedPensionPlanAverageLifeExpectancyDuringRetirementFemale	P23Y7M6D
CY2019Q4	us-gaap	Defined Benefit Plan Fair Value Of Plan Assets DefinedBenefitPlanFairValueOfPlanAssets	69777000	USD
CY2018Q4	us-gaap	Defined Benefit Plan Fair Value Of Plan Assets DefinedBenefitPlanFairValueOfPlanAssets	63064000	USD
CY2019Q4	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Next Twelve Months DefinedBenefitPlanExpectedFutureBenefitPaymentsNextTwelveMonths	3485000	USD
CY2019Q4	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Year Two DefinedBenefitPlanExpectedFutureBenefitPaymentsYearTwo	3982000	USD
CY2019Q4	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Year Three DefinedBenefitPlanExpectedFutureBenefitPaymentsYearThree	3995000	USD
CY2019Q4	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Year Four DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFour	3435000	USD
CY2019Q4	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Year Five DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFive	3605000	USD
CY2019Q4	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Five Fiscal Years Thereafter DefinedBenefitPlanExpectedFutureBenefitPaymentsFiveFiscalYearsThereafter	20060000	USD
CY2019Q4	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	384567000	USD
CY2019Q3	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	325341000	USD
CY2019Q2	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	296250000	USD
CY2019Q1	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	292707000	USD
CY2018Q4	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	332058000	USD
CY2018Q3	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	200413000	USD
CY2018Q2	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	208227000	USD
CY2018Q1	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	202681000	USD
CY2019Q4	infn	Amortization Of Intangible Assets Cost Of Revenue AmortizationOfIntangibleAssetsCostOfRevenue	8437000	USD
CY2019Q3	infn	Amortization Of Intangible Assets Cost Of Revenue AmortizationOfIntangibleAssetsCostOfRevenue	7796000	USD
CY2019Q2	infn	Amortization Of Intangible Assets Cost Of Revenue AmortizationOfIntangibleAssetsCostOfRevenue	8098000	USD
CY2019Q1	infn	Amortization Of Intangible Assets Cost Of Revenue AmortizationOfIntangibleAssetsCostOfRevenue	8252000	USD
CY2018Q4	infn	Amortization Of Intangible Assets Cost Of Revenue AmortizationOfIntangibleAssetsCostOfRevenue	8315000	USD
CY2018Q3	infn	Amortization Of Intangible Assets Cost Of Revenue AmortizationOfIntangibleAssetsCostOfRevenue	4876000	USD
CY2018Q2	infn	Amortization Of Intangible Assets Cost Of Revenue AmortizationOfIntangibleAssetsCostOfRevenue	4943000	USD
CY2018Q1	infn	Amortization Of Intangible Assets Cost Of Revenue AmortizationOfIntangibleAssetsCostOfRevenue	5341000	USD
CY2019Q4	infn	Business Combination Acquisition And Integration Related Costs Cost Of Revenue BusinessCombinationAcquisitionAndIntegrationRelatedCostsCostOfRevenue	7238000	USD
CY2019Q3	infn	Business Combination Acquisition And Integration Related Costs Cost Of Revenue BusinessCombinationAcquisitionAndIntegrationRelatedCostsCostOfRevenue	8447000	USD
CY2019Q2	infn	Business Combination Acquisition And Integration Related Costs Cost Of Revenue BusinessCombinationAcquisitionAndIntegrationRelatedCostsCostOfRevenue	10700000	USD
CY2019Q1	infn	Business Combination Acquisition And Integration Related Costs Cost Of Revenue BusinessCombinationAcquisitionAndIntegrationRelatedCostsCostOfRevenue	2064000	USD
CY2018Q4	infn	Business Combination Acquisition And Integration Related Costs Cost Of Revenue BusinessCombinationAcquisitionAndIntegrationRelatedCostsCostOfRevenue	0	USD
CY2018Q3	infn	Business Combination Acquisition And Integration Related Costs Cost Of Revenue BusinessCombinationAcquisitionAndIntegrationRelatedCostsCostOfRevenue	0	USD
CY2018Q2	infn	Business Combination Acquisition And Integration Related Costs Cost Of Revenue BusinessCombinationAcquisitionAndIntegrationRelatedCostsCostOfRevenue	0	USD
CY2018Q1	infn	Business Combination Acquisition And Integration Related Costs Cost Of Revenue BusinessCombinationAcquisitionAndIntegrationRelatedCostsCostOfRevenue	0	USD
CY2019Q4	infn	Restructuring Charges Costof Revenue RestructuringChargesCostofRevenue	5407000	USD
CY2019Q3	infn	Restructuring Charges Costof Revenue RestructuringChargesCostofRevenue	1198000	USD
CY2019Q2	infn	Restructuring Charges Costof Revenue RestructuringChargesCostofRevenue	1864000	USD
CY2019Q1	infn	Restructuring Charges Costof Revenue RestructuringChargesCostofRevenue	21466000	USD
CY2018Q4	infn	Restructuring Charges Costof Revenue RestructuringChargesCostofRevenue	2580000	USD
CY2018Q3	infn	Restructuring Charges Costof Revenue RestructuringChargesCostofRevenue	7000	USD
CY2018Q2	infn	Restructuring Charges Costof Revenue RestructuringChargesCostofRevenue	26000	USD
CY2018Q1	infn	Restructuring Charges Costof Revenue RestructuringChargesCostofRevenue	17000	USD
CY2019Q4	us-gaap	Cost Of Revenue CostOfRevenue	273161000	USD
CY2019Q3	us-gaap	Cost Of Revenue CostOfRevenue	238512000	USD
CY2019Q2	us-gaap	Cost Of Revenue CostOfRevenue	234994000	USD
CY2019Q1	us-gaap	Cost Of Revenue CostOfRevenue	226275000	USD
CY2018Q4	us-gaap	Cost Of Revenue CostOfRevenue	247554000	USD
CY2018Q3	us-gaap	Cost Of Revenue CostOfRevenue	130234000	USD
CY2018Q2	us-gaap	Cost Of Revenue CostOfRevenue	123922000	USD
CY2018Q1	us-gaap	Cost Of Revenue CostOfRevenue	120513000	USD
CY2019Q4	us-gaap	Gross Profit GrossProfit	111406000	USD
CY2019Q3	us-gaap	Gross Profit GrossProfit	86829000	USD
CY2019Q2	us-gaap	Gross Profit GrossProfit	61256000	USD
CY2019Q1	us-gaap	Gross Profit GrossProfit	66432000	USD
CY2018Q4	us-gaap	Gross Profit GrossProfit	84504000	USD
CY2018Q3	us-gaap	Gross Profit GrossProfit	70179000	USD
CY2018Q2	us-gaap	Gross Profit GrossProfit	84305000	USD
CY2018Q1	us-gaap	Gross Profit GrossProfit	82168000	USD
CY2019Q4	infn	Amortization Of Intangible Assets Operating Expenses AmortizationOfIntangibleAssetsOperatingExpenses	6617000	USD
CY2019Q3	infn	Business Combination Acquisition And Integration Related Costs BusinessCombinationAcquisitionAndIntegrationRelatedCosts	11962000	USD
CY2019Q2	infn	Business Combination Acquisition And Integration Related Costs BusinessCombinationAcquisitionAndIntegrationRelatedCosts	12164000	USD
CY2019Q1	infn	Business Combination Acquisition And Integration Related Costs BusinessCombinationAcquisitionAndIntegrationRelatedCosts	7134000	USD
CY2019Q4	infn	Business Combination Acquisition And Integration Related Costs BusinessCombinationAcquisitionAndIntegrationRelatedCosts	11011000	USD
CY2019Q3	infn	Amortization Of Intangible Assets Operating Expenses AmortizationOfIntangibleAssetsOperatingExpenses	6861000	USD
CY2019Q2	infn	Amortization Of Intangible Assets Operating Expenses AmortizationOfIntangibleAssetsOperatingExpenses	6745000	USD
CY2019Q1	infn	Amortization Of Intangible Assets Operating Expenses AmortizationOfIntangibleAssetsOperatingExpenses	7057000	USD
CY2018Q4	infn	Amortization Of Intangible Assets Operating Expenses AmortizationOfIntangibleAssetsOperatingExpenses	24735000	USD
CY2018Q3	infn	Amortization Of Intangible Assets Operating Expenses AmortizationOfIntangibleAssetsOperatingExpenses	1467000	USD
CY2018Q2	infn	Amortization Of Intangible Assets Operating Expenses AmortizationOfIntangibleAssetsOperatingExpenses	1487000	USD
CY2018Q1	infn	Amortization Of Intangible Assets Operating Expenses AmortizationOfIntangibleAssetsOperatingExpenses	1607000	USD
CY2018Q4	infn	Business Combination Acquisition And Integration Related Costs BusinessCombinationAcquisitionAndIntegrationRelatedCosts	13463000	USD
CY2018Q3	infn	Business Combination Acquisition And Integration Related Costs BusinessCombinationAcquisitionAndIntegrationRelatedCosts	2067000	USD
CY2018Q2	infn	Business Combination Acquisition And Integration Related Costs BusinessCombinationAcquisitionAndIntegrationRelatedCosts	0	USD
CY2018Q1	infn	Business Combination Acquisition And Integration Related Costs BusinessCombinationAcquisitionAndIntegrationRelatedCosts	0	USD
CY2019Q4	infn	Restructuring Charges Operating Expenses RestructuringChargesOperatingExpenses	18024000	USD
CY2019Q3	infn	Restructuring Charges Operating Expenses RestructuringChargesOperatingExpenses	2168000	USD
CY2019Q2	infn	Restructuring Charges Operating Expenses RestructuringChargesOperatingExpenses	3471000	USD
CY2019Q1	infn	Restructuring Charges Operating Expenses RestructuringChargesOperatingExpenses	17188000	USD
CY2018Q4	infn	Restructuring Charges Operating Expenses RestructuringChargesOperatingExpenses	10804000	USD
CY2018Q3	infn	Restructuring Charges Operating Expenses RestructuringChargesOperatingExpenses	191000	USD
CY2018Q2	infn	Restructuring Charges Operating Expenses RestructuringChargesOperatingExpenses	1680000	USD
CY2018Q1	infn	Restructuring Charges Operating Expenses RestructuringChargesOperatingExpenses	-163000	USD
CY2019Q4	us-gaap	Other Expenses OtherExpenses	136625000	USD
CY2019Q3	us-gaap	Other Expenses OtherExpenses	135125000	USD
CY2019Q2	us-gaap	Other Expenses OtherExpenses	147260000	USD
CY2019Q1	us-gaap	Other Expenses OtherExpenses	146741000	USD
CY2018Q4	us-gaap	Other Expenses OtherExpenses	149726000	USD
CY2018Q3	us-gaap	Other Expenses OtherExpenses	91612000	USD
CY2018Q2	us-gaap	Other Expenses OtherExpenses	102757000	USD
CY2018Q1	us-gaap	Other Expenses OtherExpenses	105402000	USD
CY2019Q4	us-gaap	Operating Expenses OperatingExpenses	172277000	USD
CY2019Q3	us-gaap	Operating Expenses OperatingExpenses	156116000	USD
CY2019Q2	us-gaap	Operating Expenses OperatingExpenses	169640000	USD
CY2019Q1	us-gaap	Operating Expenses OperatingExpenses	178120000	USD
CY2018Q4	us-gaap	Operating Expenses OperatingExpenses	198728000	USD
CY2018Q3	us-gaap	Operating Expenses OperatingExpenses	95337000	USD
CY2018Q2	us-gaap	Operating Expenses OperatingExpenses	105924000	USD
CY2018Q1	us-gaap	Operating Expenses OperatingExpenses	106846000	USD
CY2019Q4	us-gaap	Operating Income Loss OperatingIncomeLoss	-60871000	USD
CY2019Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	-69287000	USD
CY2019Q2	us-gaap	Operating Income Loss OperatingIncomeLoss	-108384000	USD
CY2019Q1	us-gaap	Operating Income Loss OperatingIncomeLoss	-111688000	USD
CY2018Q4	us-gaap	Operating Income Loss OperatingIncomeLoss	-114224000	USD
CY2018Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	-25158000	USD
CY2018Q2	us-gaap	Operating Income Loss OperatingIncomeLoss	-21619000	USD
CY2018Q1	us-gaap	Operating Income Loss OperatingIncomeLoss	-24678000	USD
CY2019Q4	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-5886000	USD
CY2019Q3	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-13932000	USD
CY2019Q2	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-3887000	USD
CY2019Q1	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-9720000	USD
CY2018Q4	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-19231000	USD
CY2018Q3	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-7317000	USD
CY2018Q2	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-443000	USD
CY2018Q1	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-2280000	USD
CY2019Q4	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-66757000	USD
CY2019Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-83219000	USD
CY2019Q2	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-112271000	USD
CY2019Q1	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-121408000	USD
CY2018Q4	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-133455000	USD
CY2018Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-32475000	USD
CY2018Q2	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-22062000	USD
CY2018Q1	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-26958000	USD
CY2019Q4	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-163000	USD
CY2019Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	1548000	USD
CY2019Q2	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	1385000	USD
CY2019Q1	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	193000	USD
CY2018Q4	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	12000	USD
CY2018Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	135000	USD
CY2018Q2	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-124000	USD
CY2018Q1	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-678000	USD
CY2019Q4	us-gaap	Net Income Loss NetIncomeLoss	-66594000	USD
CY2019Q3	us-gaap	Net Income Loss NetIncomeLoss	-84767000	USD
CY2019Q2	us-gaap	Net Income Loss NetIncomeLoss	-113656000	USD
CY2019Q1	us-gaap	Net Income Loss NetIncomeLoss	-121601000	USD
CY2018Q4	us-gaap	Net Income Loss NetIncomeLoss	-133467000	USD
CY2018Q3	us-gaap	Net Income Loss NetIncomeLoss	-32610000	USD
CY2018Q2	us-gaap	Net Income Loss NetIncomeLoss	-21938000	USD
CY2018Q1	us-gaap	Net Income Loss NetIncomeLoss	-26280000	USD
CY2019Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.37
CY2019Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.47
CY2019Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.64
CY2019Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.69
CY2018Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.76
CY2018Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.76
CY2018Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.21
CY2018Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.14
CY2018Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.17
CY2019Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.37
CY2019Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.47
CY2019Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.64
CY2019Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.69
CY2018Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.21
CY2018Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.14
CY2018Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.17

Files In Submission

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0001138639-20-000029-index.html	Edgar Link	pending
0001138639-20-000029.txt	Edgar Link	pending
0001138639-20-000029-xbrl.zip	Edgar Link	pending
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Financial_Report.xlsx	Edgar Link	pending
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$INFN
Infinera Corp Stock $infn

2018 Q4 Form 10-K Financial Statement

#000113863920000029 Filed on March 04, 2020

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$INFN Infinera Corp Stock $infn

2018 Q4 Form 10-K Financial Statement

#000113863920000029 Filed on March 04, 2020

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$INFN
Infinera Corp Stock $infn