$ADTN
ADTRAN Holdings, Inc.

2021 Q1 Form 10-Q Financial Statement

#000156459021025123 Filed on May 06, 2021

View on sec.gov

Income Statement

Concept 2021 Q1 2020 Q1
Revenue $127.5M $114.5M
YoY Change 11.36% -20.35%
Cost Of Revenue $73.93M $62.92M
YoY Change 17.5% -24.35%
Gross Profit $53.60M $51.60M
YoY Change 3.88% -14.87%
Gross Profit Margin 42.03% 45.06%
Selling, General & Admin $27.44M $26.62M
YoY Change 3.06% -24.23%
% of Gross Profit 51.18% 51.59%
Research & Development $27.50M $29.86M
YoY Change -7.9% -5.65%
% of Gross Profit 51.31% 57.87%
Depreciation & Amortization $4.122M $4.365M
YoY Change -5.57% -2.91%
% of Gross Profit 7.69% 8.46%
Operating Expenses $54.94M $56.48M
YoY Change -2.73% -15.42%
Operating Profit -$1.335M -$4.944M
YoY Change -73.0% -19.83%
Interest Expense $6.000K $1.000K
YoY Change 500.0% -99.21%
% of Operating Profit
Other Income/Expense, Net $1.999M $1.100M
YoY Change 81.73% 28.65%
Pretax Income $1.944M -$14.30M
YoY Change -113.59% -1426.53%
Income Tax $1.048M -$4.368M
% Of Pretax Income 53.91%
Net Earnings $896.0K -$9.969M
YoY Change -108.99% -1394.68%
Net Earnings / Revenue 0.7% -8.7%
Basic Earnings Per Share $0.02 -$0.21
Diluted Earnings Per Share $0.02 -$0.21
COMMON SHARES
Basic Shares Outstanding 48.34M 47.96M
Diluted Shares Outstanding 49.00M 47.96M

Balance Sheet

Concept 2021 Q1 2020 Q1
SHORT-TERM ASSETS
Cash & Short-Term Investments $67.90M $77.30M
YoY Change -12.16% -44.94%
Cash & Equivalents $63.78M $71.29M
Short-Term Investments $4.100M $6.000M
Other Short-Term Assets $7.700M $7.400M
YoY Change 4.05% -23.71%
Inventory $122.9M $99.52M
Prepaid Expenses
Receivables $103.2M $90.50M
Other Receivables $21.80M $21.80M
Total Short-Term Assets $324.3M $293.8M
YoY Change 10.38% -22.13%
LONG-TERM ASSETS
Property, Plant & Equipment $60.16M $66.50M
YoY Change -9.54% -16.36%
Goodwill
YoY Change
Intangibles
YoY Change
Long-Term Investments $81.30M $79.10M
YoY Change 2.78% -7.16%
Other Assets $35.60M $17.90M
YoY Change 98.88% 20.26%
Total Long-Term Assets $206.5M $204.5M
YoY Change 0.98% -19.9%
TOTAL ASSETS
Total Short-Term Assets $324.3M $293.8M
Total Long-Term Assets $206.5M $204.5M
Total Assets $530.8M $498.3M
YoY Change 6.52% -21.23%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable $55.50M $47.70M
YoY Change 16.35% -20.65%
Accrued Expenses $30.50M $26.00M
YoY Change 17.31% 85.2%
Deferred Revenue $14.46M $12.47M
YoY Change 15.98% -18.15%
Short-Term Debt $0.00 $0.00
YoY Change
Long-Term Debt Due $0.00
YoY Change -100.0%
Total Short-Term Liabilities $102.2M $89.42M
YoY Change 14.29% -36.97%
LONG-TERM LIABILITIES
Long-Term Debt $0.00 $0.00
YoY Change
Other Long-Term Liabilities $58.20M $6.794M
YoY Change 756.64% -84.08%
Total Long-Term Liabilities $58.20M $6.794M
YoY Change 756.64% -84.08%
TOTAL LIABILITIES
Total Short-Term Liabilities $102.2M $89.42M
Total Long-Term Liabilities $58.20M $6.794M
Total Liabilities $160.4M $134.6M
YoY Change 19.21% -28.84%
SHAREHOLDERS EQUITY
Retained Earnings $790.8M
YoY Change -10.05%
Common Stock $277.2M
YoY Change 2.55%
Preferred Stock
YoY Change
Treasury Stock (at cost) $686.5M
YoY Change -0.66%
Treasury Stock Shares $31.70M
Shareholders Equity $370.4M $363.7M
YoY Change
Total Liabilities & Shareholders Equity $530.8M $498.3M
YoY Change 6.53% -21.24%

Cashflow Statement

Concept 2021 Q1 2020 Q1
OPERATING ACTIVITIES
Net Income $896.0K -$9.969M
YoY Change -108.99% -1394.68%
Depreciation, Depletion And Amortization $4.122M $4.365M
YoY Change -5.57% -2.91%
Cash From Operating Activities $10.69M -$24.00K
YoY Change -44620.83% -100.25%
INVESTING ACTIVITIES
Capital Expenditures $741.0K $1.406M
YoY Change -47.3% -24.89%
Acquisitions
YoY Change
Other Investing Activities -$1.300M $29.00M
YoY Change -104.48% 1605.88%
Cash From Investing Activities -$2.004M $27.63M
YoY Change -107.25% -18399.34%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net $24.60M
YoY Change
Cash From Financing Activities -3.230M -28.93M
YoY Change -88.83% 544.99%
NET CHANGE
Cash From Operating Activities 10.69M -24.00K
Cash From Investing Activities -2.004M 27.63M
Cash From Financing Activities -3.230M -28.93M
Net Change In Cash 5.451M -1.320M
YoY Change -512.95% -9.65%
FREE CASH FLOW
Cash From Operating Activities $10.69M -$24.00K
Capital Expenditures $741.0K $1.406M
Free Cash Flow $9.944M -$1.430M
YoY Change -795.38% -118.24%

Facts In Submission

Frame Concept Type Concept / XBRL Key Value Unit
CY2020 us-gaap Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term2
SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2
P2Y10M24D
CY2021Q1 us-gaap Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term2
SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2
P2Y7M6D
CY2021Q1 us-gaap Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Weighted Average Remaining Contractual Term1
SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1
P2Y7M6D
CY2020Q1 us-gaap Cost Of Goods And Services Sold
CostOfGoodsAndServicesSold
62923000
CY2021Q1 us-gaap Selling General And Administrative Expense
SellingGeneralAndAdministrativeExpense
27435000
CY2021Q1 us-gaap Research And Development Expense
ResearchAndDevelopmentExpense
27501000
CY2020Q1 us-gaap Research And Development Expense
ResearchAndDevelopmentExpense
29859000
CY2020Q1 us-gaap Asset Impairment Charges
AssetImpairmentCharges
65000
CY2021Q1 us-gaap Operating Income Loss
OperatingIncomeLoss
-1335000
CY2020Q1 us-gaap Operating Income Loss
OperatingIncomeLoss
-4944000
CY2021Q1 us-gaap Investment Income Interest And Dividend
InvestmentIncomeInterestAndDividend
290000
CY2020Q1 us-gaap Investment Income Interest And Dividend
InvestmentIncomeInterestAndDividend
356000
CY2021Q1 us-gaap Interest Expense
InterestExpense
6000
CY2020Q1 us-gaap Interest Expense
InterestExpense
1000
CY2021Q1 us-gaap Gain Loss On Investments
GainLossOnInvestments
996000
CY2020Q1 us-gaap Gain Loss On Investments
GainLossOnInvestments
-10877000
CY2021Q1 us-gaap Net Income Loss
NetIncomeLoss
896000
CY2020Q1 us-gaap Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
47957000
CY2021Q1 us-gaap Earnings Per Share Diluted
EarningsPerShareDiluted
0.02
CY2020Q1 us-gaap Net Income Loss
NetIncomeLoss
-9969000
CY2021Q1 us-gaap Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax
OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax
-192000
CY2020Q1 us-gaap Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax
OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax
117000
CY2021Q1 us-gaap Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax
OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax
-99000
CY2020Q1 us-gaap Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax
OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax
-141000
CY2021Q1 us-gaap Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax
OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax
-1863000
CY2020Q1 us-gaap Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax
OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax
-1650000
CY2020Q1 us-gaap Other Comprehensive Income Loss Net Of Tax
OtherComprehensiveIncomeLossNetOfTax
-1392000
CY2019Q4 us-gaap Stockholders Equity
StockholdersEquity
380426000
CY2020Q1 us-gaap Other Comprehensive Income Loss Net Of Tax
OtherComprehensiveIncomeLossNetOfTax
-1392000
CY2020Q1 us-gaap Common Stock Dividends Per Share Declared
CommonStockDividendsPerShareDeclared
0.09
CY2020Q1 us-gaap Dividends Common Stock Cash
DividendsCommonStockCash
4328000
CY2020Q1 adtn Unvested Restricted Stock Units Dividends Accrual Adjustment For Market Changes
UnvestedRestrictedStockUnitsDividendsAccrualAdjustmentForMarketChanges
-32000
CY2020Q1 us-gaap Adjustments Related To Tax Withholding For Share Based Compensation
AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation
2758000
CY2020Q1 adtn Stock Vested During Period Value Restricted Stock Performance Stock Units And Restricted Stock Units
StockVestedDuringPeriodValueRestrictedStockPerformanceStockUnitsAndRestrictedStockUnits
23000
CY2020Q1 us-gaap Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value
AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue
1791000
CY2020Q1 us-gaap Stockholders Equity
StockholdersEquity
363715000
CY2020Q4 us-gaap Stockholders Equity
StockholdersEquity
372944000
CY2021Q1 us-gaap Net Income Loss
NetIncomeLoss
896000
CY2021Q1 us-gaap Other Comprehensive Income Loss Net Of Tax
OtherComprehensiveIncomeLossNetOfTax
-1956000
CY2021Q1 us-gaap Common Stock Dividends Per Share Declared
CommonStockDividendsPerShareDeclared
0.09
CY2021Q1 us-gaap Dividends Common Stock Cash
DividendsCommonStockCash
4361000
CY2021Q1 adtn Unvested Restricted Stock Units Dividends Accrual Adjustment For Market Changes
UnvestedRestrictedStockUnitsDividendsAccrualAdjustmentForMarketChanges
-68000
CY2021Q1 us-gaap Adjustments Related To Tax Withholding For Share Based Compensation
AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation
50000
CY2021Q1 adtn Stock Vested During Period Value Restricted Stock Performance Stock Units And Restricted Stock Units
StockVestedDuringPeriodValueRestrictedStockPerformanceStockUnitsAndRestrictedStockUnits
81000
CY2021Q1 us-gaap Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value
AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue
1807000
CY2021Q1 us-gaap Stockholders Equity
StockholdersEquity
370375000
CY2021Q1 us-gaap Profit Loss
ProfitLoss
896000
CY2020Q1 us-gaap Profit Loss
ProfitLoss
-9969000
CY2021Q1 us-gaap Depreciation Depletion And Amortization
DepreciationDepletionAndAmortization
4122000
CY2020Q1 us-gaap Depreciation Depletion And Amortization
DepreciationDepletionAndAmortization
4365000
CY2021Q1 adtn Gain Loss On Investments And Dividends
GainLossOnInvestmentsAndDividends
1161000
CY2020Q1 adtn Gain Loss On Investments And Dividends
GainLossOnInvestmentsAndDividends
-10877000
CY2021Q1 us-gaap Other Noncash Income Expense
OtherNoncashIncomeExpense
-84000
CY2020Q1 us-gaap Other Noncash Income Expense
OtherNoncashIncomeExpense
-115000
CY2021Q1 us-gaap Payments Of Dividends Common Stock
PaymentsOfDividendsCommonStock
4361000
CY2021Q1 us-gaap Proceeds From Stock Options Exercised
ProceedsFromStockOptionsExercised
1244000
CY2021Q1 us-gaap Payments Related To Tax Withholding For Share Based Compensation
PaymentsRelatedToTaxWithholdingForShareBasedCompensation
113000
CY2020Q1 us-gaap Repayments Of Long Term Debt
RepaymentsOfLongTermDebt
24600000
CY2020Q1 us-gaap Net Cash Provided By Used In Financing Activities
NetCashProvidedByUsedInFinancingActivities
-28928000
CY2021Q1 us-gaap Contract With Customer Liability Revenue Recognized
ContractWithCustomerLiabilityRevenueRecognized
5000000.0
CY2020Q1 us-gaap Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Excluding Exchange Rate Effect
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect
-1320000
CY2020Q1 us-gaap Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations
EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations
-1168000
CY2020Q1 us-gaap Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations
71285000
CY2021Q1 us-gaap Right Of Use Asset Obtained In Exchange For Operating Lease Liability
RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability
248000
CY2020Q1 us-gaap Right Of Use Asset Obtained In Exchange For Operating Lease Liability
RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability
85000
CY2021Q1 us-gaap Noncash Or Part Noncash Acquisition Value Of Assets Acquired1
NoncashOrPartNoncashAcquisitionValueOfAssetsAcquired1
199000
CY2020Q1 us-gaap Noncash Or Part Noncash Acquisition Value Of Assets Acquired1
NoncashOrPartNoncashAcquisitionValueOfAssetsAcquired1
302000
CY2021Q1 us-gaap Use Of Estimates
UseOfEstimates
<p style="text-align:justify;margin-top:10pt;margin-bottom:0pt;text-indent:0%;font-weight:bold;font-family:Times New Roman;font-size:10pt;font-style:normal;text-transform:none;font-variant: normal;">Use of Estimates</p> <p style="text-align:justify;margin-top:10pt;margin-bottom:0pt;text-indent:0%;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">The preparation of financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, the disclosure of contingent assets and liabilities at the date of the financial statements, and the reported amounts of revenue and expense during the reporting period. The more significant estimates include excess and obsolete inventory reserves, warranty reserves, customer rebates, determination and accrual of deferred revenue components of multiple element sales agreements, estimated costs to complete obligations associated with deferred and accrued revenues and network installations, estimated income tax provision and income tax contingencies, fair value of stock-based compensation, assessment of goodwill and other intangibles for impairment, estimated lives of intangible assets, estimated pension, and liability and fair value of investments, evaluation of other-than-temporary declines in the value of investments and the allowance for current expected credit losses. Actual amounts could differ significantly from these estimates.</p> <p style="text-align:justify;margin-top:10pt;margin-bottom:0pt;text-indent:0%;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">We assessed certain accounting matters that generally require consideration of forecasted financial information in context with the information reasonably available to us and the unknown future impacts of the novel coronavirus (“COVID-19”) as of March 31, 2021 and through the date of this report. The accounting matters assessed included, but were not limited to, the allowance for doubtful accounts, stock-based compensation, carrying value of goodwill, intangibles and other long-lived assets, financial assets, valuation allowances for tax assets and revenue recognition. While there was not a material impact to our consolidated financial statements as of and for the quarter ended March 31, 2021 resulting from these assessments, future assessments related to the COVID-19 pandemic, as well as other factors, could result in material impacts to our consolidated financial statements in future reporting periods.</p>
CY2020Q1 us-gaap Effective Income Tax Rate Continuing Operations
EffectiveIncomeTaxRateContinuingOperations
0.305
CY2021Q1 us-gaap Cash And Cash Equivalents At Carrying Value
CashAndCashEquivalentsAtCarryingValue
63777000
CY2020Q4 us-gaap Cash And Cash Equivalents At Carrying Value
CashAndCashEquivalentsAtCarryingValue
60161000
CY2021Q1 us-gaap Restricted Cash And Cash Equivalents
RestrictedCashAndCashEquivalents
119000
CY2020Q4 us-gaap Restricted Cash And Cash Equivalents
RestrictedCashAndCashEquivalents
18000
CY2021Q1 us-gaap Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
63896000
CY2020Q4 us-gaap Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
60179000
CY2021Q1 adtn Number Of Product Categories
NumberOfProductCategories
3
CY2021Q1 us-gaap Revenue From Contract With Customer Excluding Assessed Tax
RevenueFromContractWithCustomerExcludingAssessedTax
127533000
CY2020Q1 us-gaap Revenue From Contract With Customer Excluding Assessed Tax
RevenueFromContractWithCustomerExcludingAssessedTax
114523000
CY2021Q1 us-gaap Revenue Remaining Performance Obligation
RevenueRemainingPerformanceObligation
0
CY2021Q1 us-gaap Revenue Remaining Performance Obligation Percentage
RevenueRemainingPerformanceObligationPercentage
0.63
CY2021Q1 us-gaap Revenue Remaining Performance Obligation Expected Timing Of Satisfaction Period1
RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1
P12M
CY2021Q1 us-gaap Accounts Receivable Net Current
AccountsReceivableNetCurrent
103201000
CY2020Q4 us-gaap Accounts Receivable Net Current
AccountsReceivableNetCurrent
98827000
CY2021Q1 us-gaap Contract With Customer Asset Net Current
ContractWithCustomerAssetNetCurrent
906000
CY2020Q4 us-gaap Contract With Customer Asset Net Current
ContractWithCustomerAssetNetCurrent
63000
CY2021Q1 us-gaap Contract With Customer Liability Current
ContractWithCustomerLiabilityCurrent
14457000
CY2020Q4 us-gaap Contract With Customer Liability Current
ContractWithCustomerLiabilityCurrent
14092000
CY2021Q1 us-gaap Contract With Customer Liability Noncurrent
ContractWithCustomerLiabilityNoncurrent
7040000
CY2020Q4 us-gaap Contract With Customer Liability Noncurrent
ContractWithCustomerLiabilityNoncurrent
6888000
CY2021Q1 us-gaap Effective Income Tax Rate Continuing Operations
EffectiveIncomeTaxRateContinuingOperations
0.539
CY2020Q1 adtn Income Tax Expense Benefit Result Of Cares Act Of2020
IncomeTaxExpenseBenefitResultOfCARESActOf2020
-7400000
CY2021Q1 adtn Income Tax Expense Benefit Result Of Alabama Business Tax Competitiveness Act
IncomeTaxExpenseBenefitResultOfAlabamaBusinessTaxCompetitivenessAct
1600000
CY2021Q1 us-gaap Deferred Tax Assets Gross
DeferredTaxAssetsGross
58000000.0
CY2021Q1 us-gaap Deferred Tax Assets Valuation Allowance
DeferredTaxAssetsValuationAllowance
48500000
CY2021Q1 us-gaap Deferred Tax Assets Net
DeferredTaxAssetsNet
9400000
CY2021Q1 us-gaap Deferred Tax Assets Gross
DeferredTaxAssetsGross
57952000
CY2021Q1 us-gaap Deferred Tax Assets Valuation Allowance
DeferredTaxAssetsValuationAllowance
48504000
CY2021Q1 us-gaap Deferred Tax Assets Net
DeferredTaxAssetsNet
9448000
CY2020Q4 us-gaap Deferred Tax Assets Gross
DeferredTaxAssetsGross
55687000
CY2020Q4 us-gaap Deferred Tax Assets Valuation Allowance
DeferredTaxAssetsValuationAllowance
45818000
CY2020Q4 us-gaap Deferred Tax Assets Net
DeferredTaxAssetsNet
9869000
CY2021Q1 us-gaap Defined Benefit Plan Service Cost
DefinedBenefitPlanServiceCost
314000
CY2020Q1 us-gaap Defined Benefit Plan Service Cost
DefinedBenefitPlanServiceCost
310000
CY2021Q1 us-gaap Defined Benefit Plan Interest Cost
DefinedBenefitPlanInterestCost
87000
CY2020Q1 us-gaap Defined Benefit Plan Interest Cost
DefinedBenefitPlanInterestCost
108000
CY2021Q1 us-gaap Defined Benefit Plan Expected Return On Plan Assets
DefinedBenefitPlanExpectedReturnOnPlanAssets
471000
CY2020Q1 us-gaap Defined Benefit Plan Expected Return On Plan Assets
DefinedBenefitPlanExpectedReturnOnPlanAssets
410000
CY2021Q1 us-gaap Defined Benefit Plan Amortization Of Gains Losses
DefinedBenefitPlanAmortizationOfGainsLosses
-278000
CY2020Q1 us-gaap Defined Benefit Plan Amortization Of Gains Losses
DefinedBenefitPlanAmortizationOfGainsLosses
-237000
CY2021Q1 us-gaap Defined Benefit Plan Net Periodic Benefit Cost
DefinedBenefitPlanNetPeriodicBenefitCost
208000
CY2020Q1 us-gaap Defined Benefit Plan Net Periodic Benefit Cost
DefinedBenefitPlanNetPeriodicBenefitCost
245000
CY2021Q1 us-gaap Allocated Share Based Compensation Expense
AllocatedShareBasedCompensationExpense
1807000
CY2020Q1 us-gaap Allocated Share Based Compensation Expense
AllocatedShareBasedCompensationExpense
1791000
CY2021Q1 us-gaap Employee Service Share Based Compensation Tax Benefit From Compensation Expense
EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense
431000
CY2020Q1 us-gaap Employee Service Share Based Compensation Tax Benefit From Compensation Expense
EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense
427000
CY2021Q1 us-gaap Allocated Share Based Compensation Expense Net Of Tax
AllocatedShareBasedCompensationExpenseNetOfTax
1376000
CY2020Q1 us-gaap Allocated Share Based Compensation Expense Net Of Tax
AllocatedShareBasedCompensationExpenseNetOfTax
1364000
CY2021Q1 us-gaap Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period
ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod
354000
CY2020Q4 us-gaap Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Number
ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber
1846000
CY2020Q4 us-gaap Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Weighted Average Grant Date Fair Value
ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue
11.49
CY2021Q1 us-gaap Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period Weighted Average Grant Date Fair Value
ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue
16.72
CY2021Q1 us-gaap Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period
ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod
11000
CY2021Q1 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
11.88
CY2021Q1 us-gaap Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Forfeited In Period
ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod
34000
CY2021Q1 us-gaap Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Forfeitures Weighted Average Grant Date Fair Value
ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue
11.48
CY2021Q1 us-gaap Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Available For Grant
ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant
3400000
CY2020Q4 us-gaap Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice
21.17
CY2021Q1 us-gaap Stock Issued During Period Shares Stock Options Exercised
StockIssuedDuringPeriodSharesStockOptionsExercised
80000
CY2021Q1 us-gaap Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price
ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice
15.64
CY2021Q1 us-gaap Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue
167000
CY2021Q1 us-gaap Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures And Expirations In Period
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod
92000
CY2021Q1 us-gaap Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures And Expirations In Period Weighted Average Exercise Price
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice
21.55
CY2021Q1 us-gaap Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice
21.32
CY2021Q1 us-gaap Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue
779000
CY2021Q1 us-gaap Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber
2546000
CY2021Q1 us-gaap Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Exercise Price
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice
21.32
CY2021Q1 us-gaap Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Intrinsic Value1
SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1
779000
CY2021Q1 us-gaap Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross
0
CY2020Q1 us-gaap Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross
0
CY2021Q1 us-gaap Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue
800000
CY2021Q1 us-gaap Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue
200000
CY2021Q1 us-gaap Available For Sale Debt Securities Amortized Cost Basis
AvailableForSaleDebtSecuritiesAmortizedCostBasis
45891000
CY2021Q1 us-gaap Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax
AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax
296000
CY2021Q1 us-gaap Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax
AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax
40000
CY2021Q1 us-gaap Available For Sale Securities Debt Securities
AvailableForSaleSecuritiesDebtSecurities
46147000
CY2020Q4 us-gaap Available For Sale Debt Securities Amortized Cost Basis
AvailableForSaleDebtSecuritiesAmortizedCostBasis
44666000
CY2020Q4 us-gaap Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax
AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax
457000
CY2020Q4 us-gaap Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax
AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax
7000
CY2020Q4 us-gaap Available For Sale Securities Debt Securities
AvailableForSaleSecuritiesDebtSecurities
45116000
CY2021Q1 us-gaap Debt Securities Available For Sale Realized Gain
DebtSecuritiesAvailableForSaleRealizedGain
87000
CY2020Q1 us-gaap Debt Securities Available For Sale Realized Gain
DebtSecuritiesAvailableForSaleRealizedGain
43000
CY2021Q1 us-gaap Debt Securities Available For Sale Realized Loss
DebtSecuritiesAvailableForSaleRealizedLoss
16000
CY2020Q1 us-gaap Debt Securities Available For Sale Realized Loss
DebtSecuritiesAvailableForSaleRealizedLoss
20000
CY2021Q1 us-gaap Debt Securities Available For Sale Realized Gain Loss
DebtSecuritiesAvailableForSaleRealizedGainLoss
71000
CY2020Q1 us-gaap Debt Securities Available For Sale Realized Gain Loss
DebtSecuritiesAvailableForSaleRealizedGainLoss
23000
CY2021Q1 us-gaap Debt Securities Available For Sale Purchased With Credit Deterioration Amount At Purchase Price
DebtSecuritiesAvailableForSalePurchasedWithCreditDeteriorationAmountAtPurchasePrice
0
CY2019Q1 us-gaap Transfer Of Investments
TransferOfInvestments
3400000
CY2021Q1 us-gaap Equity Securities Fv Ni
EquitySecuritiesFvNi
800000
CY2020Q4 us-gaap Equity Securities Fv Ni
EquitySecuritiesFvNi
800000
CY2021Q1 us-gaap Equity Securities Fv Ni Realized Gain Loss
EquitySecuritiesFvNiRealizedGainLoss
24000
CY2020Q1 us-gaap Equity Securities Fv Ni Realized Gain Loss
EquitySecuritiesFvNiRealizedGainLoss
-2436000
CY2021Q1 us-gaap Equity Securities Fv Ni Unrealized Gain Loss
EquitySecuritiesFvNiUnrealizedGainLoss
901000
CY2020Q1 us-gaap Equity Securities Fv Ni Unrealized Gain Loss
EquitySecuritiesFvNiUnrealizedGainLoss
-8464000
CY2021Q1 us-gaap Equity Securities Fv Ni Gain Loss
EquitySecuritiesFvNiGainLoss
925000
CY2020Q1 us-gaap Equity Securities Fv Ni Gain Loss
EquitySecuritiesFvNiGainLoss
-10900000
CY2021Q1 us-gaap Inventory Raw Materials Net Of Reserves
InventoryRawMaterialsNetOfReserves
47980000
CY2020Q4 us-gaap Inventory Raw Materials Net Of Reserves
InventoryRawMaterialsNetOfReserves
47026000
CY2021Q1 us-gaap Inventory Work In Process Net Of Reserves
InventoryWorkInProcessNetOfReserves
1820000
CY2020Q4 us-gaap Inventory Work In Process Net Of Reserves
InventoryWorkInProcessNetOfReserves
776000
CY2021Q1 us-gaap Inventory Finished Goods Net Of Reserves
InventoryFinishedGoodsNetOfReserves
73062000
CY2020Q4 us-gaap Inventory Finished Goods Net Of Reserves
InventoryFinishedGoodsNetOfReserves
77655000
CY2021Q1 us-gaap Inventory Net
InventoryNet
122862000
CY2020Q4 us-gaap Inventory Net
InventoryNet
125457000
CY2021Q1 us-gaap Inventory Valuation Reserves
InventoryValuationReserves
41700000
CY2020Q4 us-gaap Inventory Valuation Reserves
InventoryValuationReserves
39600000
CY2021Q1 us-gaap Land
Land
4575000
CY2020Q4 us-gaap Land
Land
4575000
CY2021Q1 us-gaap Buildings And Improvements Gross
BuildingsAndImprovementsGross
35154000
CY2020Q4 us-gaap Buildings And Improvements Gross
BuildingsAndImprovementsGross
35142000
CY2021Q1 adtn Building
Building
68167000
CY2020Q4 adtn Building
Building
68169000
CY2021Q1 us-gaap Furniture And Fixtures Gross
FurnitureAndFixturesGross
19946000
CY2020Q4 us-gaap Furniture And Fixtures Gross
FurnitureAndFixturesGross
19965000
CY2021Q1 us-gaap Capitalized Computer Software Gross
CapitalizedComputerSoftwareGross
70889000
CY2020Q4 us-gaap Capitalized Computer Software Gross
CapitalizedComputerSoftwareGross
70942000
CY2021Q1 us-gaap Machinery And Equipment Gross
MachineryAndEquipmentGross
133065000
CY2020Q4 us-gaap Machinery And Equipment Gross
MachineryAndEquipmentGross
132920000
CY2021Q1 us-gaap Property Plant And Equipment Gross
PropertyPlantAndEquipmentGross
331796000
CY2020Q4 us-gaap Property Plant And Equipment Gross
PropertyPlantAndEquipmentGross
331713000
CY2021Q1 us-gaap Accumulated Depreciation Depletion And Amortization Property Plant And Equipment
AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment
271639000
CY2020Q4 us-gaap Accumulated Depreciation Depletion And Amortization Property Plant And Equipment
AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment
269314000
CY2021Q1 us-gaap Property Plant And Equipment Net
PropertyPlantAndEquipmentNet
60157000
CY2020Q4 us-gaap Property Plant And Equipment Net
PropertyPlantAndEquipmentNet
62399000
CY2021Q1 us-gaap Impairment Of Long Lived Assets To Be Disposed Of
ImpairmentOfLongLivedAssetsToBeDisposedOf
0
CY2021Q1 us-gaap Depreciation
Depreciation
3100000
CY2020Q1 us-gaap Depreciation
Depreciation
3000000.0
CY2021Q1 us-gaap Goodwill Acquired During Period
GoodwillAcquiredDuringPeriod
7000000.0
CY2020 us-gaap Goodwill Acquired During Period
GoodwillAcquiredDuringPeriod
7000000.0
CY2021Q1 us-gaap Goodwill Impairment Loss
GoodwillImpairmentLoss
0
CY2020Q1 us-gaap Goodwill Impairment Loss
GoodwillImpairmentLoss
0
CY2021Q1 us-gaap Finite Lived Intangible Assets Accumulated Amortization
FiniteLivedIntangibleAssetsAccumulatedAmortization
13920000
CY2021Q1 us-gaap Finite Lived Intangible Assets Net
FiniteLivedIntangibleAssetsNet
22384000
CY2020Q4 us-gaap Finite Lived Intangible Assets Gross
FiniteLivedIntangibleAssetsGross
39293000
CY2020Q4 us-gaap Finite Lived Intangible Assets Accumulated Amortization
FiniteLivedIntangibleAssetsAccumulatedAmortization
15823000
CY2020Q4 us-gaap Finite Lived Intangible Assets Net
FiniteLivedIntangibleAssetsNet
23470000
CY2021Q1 us-gaap Impairment Of Intangible Assets Excluding Goodwill
ImpairmentOfIntangibleAssetsExcludingGoodwill
0
CY2020Q1 us-gaap Impairment Of Intangible Assets Excluding Goodwill
ImpairmentOfIntangibleAssetsExcludingGoodwill
0
CY2021Q1 us-gaap Amortization Of Intangible Assets
AmortizationOfIntangibleAssets
1000000.0
CY2020Q1 us-gaap Amortization Of Intangible Assets
AmortizationOfIntangibleAssets
1300000
CY2021Q1 us-gaap Finite Lived Intangible Assets Amortization Expense Remainder Of Fiscal Year
FiniteLivedIntangibleAssetsAmortizationExpenseRemainderOfFiscalYear
3067000
CY2021Q1 us-gaap Finite Lived Intangible Assets Amortization Expense Next Twelve Months
FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths
3482000
CY2021Q1 us-gaap Finite Lived Intangible Assets Amortization Expense Year Two
FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo
3330000
CY2021Q1 us-gaap Finite Lived Intangible Assets Amortization Expense Year Three
FiniteLivedIntangibleAssetsAmortizationExpenseYearThree
3236000
CY2021Q1 us-gaap Finite Lived Intangible Assets Amortization Expense Year Four
FiniteLivedIntangibleAssetsAmortizationExpenseYearFour
3028000
CY2021Q1 adtn Finite Lived Intangible Assets Amortization Expense After Year Four
FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFour
6241000
CY2021Q1 us-gaap Finite Lived Intangible Assets Net
FiniteLivedIntangibleAssetsNet
22384000
CY2021Q1 adtn Sales Type Lease Lease Receivable Current
SalesTypeLeaseLeaseReceivableCurrent
560000
CY2020Q4 adtn Sales Type Lease Lease Receivable Current
SalesTypeLeaseLeaseReceivableCurrent
702000
CY2021Q1 adtn Sales Type Lease Lease Receivable Noncurrent
SalesTypeLeaseLeaseReceivableNoncurrent
262000
CY2020Q4 adtn Sales Type Lease Lease Receivable Noncurrent
SalesTypeLeaseLeaseReceivableNoncurrent
347000
CY2021Q1 us-gaap Sales Type Lease Lease Receivable
SalesTypeLeaseLeaseReceivable
822000
CY2020Q4 us-gaap Sales Type Lease Lease Receivable
SalesTypeLeaseLeaseReceivable
1049000
CY2021Q1 adtn Sales Type Leases Unearned Revenue Current
SalesTypeLeasesUnearnedRevenueCurrent
164000
CY2020Q1 us-gaap Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans Before Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansBeforeTax
204000
CY2020Q1 us-gaap Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansTax
63000
CY2020Q1 us-gaap Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans Net Of Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansNetOfTax
141000
CY2020Q4 adtn Sales Type Leases Unearned Revenue Current
SalesTypeLeasesUnearnedRevenueCurrent
218000
CY2021Q1 adtn Sales Type Leases Unearned Revenue Noncurrent
SalesTypeLeasesUnearnedRevenueNoncurrent
33000
CY2020Q4 adtn Sales Type Leases Unearned Revenue Noncurrent
SalesTypeLeasesUnearnedRevenueNoncurrent
50000
CY2021Q1 us-gaap Sales Type Lease Net Investment In Lease
SalesTypeLeaseNetInvestmentInLease
625000
CY2020Q4 us-gaap Sales Type Lease Net Investment In Lease
SalesTypeLeaseNetInvestmentInLease
781000
CY2021Q1 us-gaap Treasury Stock Shares Acquired
TreasuryStockSharesAcquired
0
CY2020Q1 us-gaap Treasury Stock Shares Acquired
TreasuryStockSharesAcquired
0
CY2021Q1 us-gaap Stock Repurchase Program Remaining Number Of Shares Authorized To Be Repurchased
StockRepurchaseProgramRemainingNumberOfSharesAuthorizedToBeRepurchased
2500000
CY2021Q1 us-gaap Stock Repurchase Program Number Of Shares Authorized To Be Repurchased
StockRepurchaseProgramNumberOfSharesAuthorizedToBeRepurchased
5000000.0
CY2021Q1 us-gaap Other Comprehensive Income Loss Before Reclassifications Net Of Tax
OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax
-1920000
CY2021Q1 us-gaap Reclassification From Accumulated Other Comprehensive Income Current Period Net Of Tax
ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax
36000
CY2021Q1 adtn Other Comprehensive Income Loss Net Of Tax Due To Changes In Accounting Standard
OtherComprehensiveIncomeLossNetOfTaxDueToChangesInAccountingStandard
-1956000
CY2020Q1 us-gaap Other Comprehensive Income Loss Before Reclassifications Net Of Tax
OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax
-2581000
CY2020Q1 us-gaap Reclassification From Accumulated Other Comprehensive Income Current Period Net Of Tax
ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax
-1189000
CY2020Q1 adtn Other Comprehensive Income Loss Net Of Tax Due To Changes In Accounting Standard
OtherComprehensiveIncomeLossNetOfTaxDueToChangesInAccountingStandard
-1392000
CY2021Q1 us-gaap Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax
OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax
-75000
CY2021Q1 us-gaap Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax
OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax
-18000
CY2021Q1 us-gaap Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax
OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax
-57000
CY2021Q1 us-gaap Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax
178000
CY2021Q1 us-gaap Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax
43000
CY2021Q1 us-gaap Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax
135000
CY2020Q1 us-gaap Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax
-1416000
CY2020Q1 us-gaap Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax
-1048000
CY2021Q1 us-gaap Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans Before Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansBeforeTax
143000
CY2021Q1 us-gaap Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans Net Of Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansNetOfTax
99000
CY2021Q1 us-gaap Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Before Tax
OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentBeforeTax
-1863000
CY2021Q1 us-gaap Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax
OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax
-1863000
CY2020Q1 us-gaap Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Before Tax
OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentBeforeTax
-1650000
CY2020Q1 us-gaap Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax
OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax
-1650000
CY2021Q1 us-gaap Other Comprehensive Income Loss Before Tax
OtherComprehensiveIncomeLossBeforeTax
-1973000
CY2021Q1 us-gaap Other Comprehensive Income Loss Tax
OtherComprehensiveIncomeLossTax
-17000
CY2021Q1 us-gaap Other Comprehensive Income Loss Net Of Tax
OtherComprehensiveIncomeLossNetOfTax
-1956000
CY2020Q1 us-gaap Other Comprehensive Income Loss Before Tax
OtherComprehensiveIncomeLossBeforeTax
-1288000
CY2020Q1 us-gaap Other Comprehensive Income Loss Tax
OtherComprehensiveIncomeLossTax
104000
CY2020Q1 us-gaap Other Comprehensive Income Loss Net Of Tax
OtherComprehensiveIncomeLossNetOfTax
-1392000
CY2021Q1 us-gaap Net Income Loss
NetIncomeLoss
896000
CY2020Q1 us-gaap Net Income Loss
NetIncomeLoss
-9969000
CY2021Q1 us-gaap Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
48336000
CY2020Q1 us-gaap Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
47957000
CY2021Q1 us-gaap Incremental Common Shares Attributable To Share Based Payment Arrangements
IncrementalCommonSharesAttributableToShareBasedPaymentArrangements
56000
CY2021Q1 us-gaap Incremental Common Shares Attributable To Contingently Issuable Shares
IncrementalCommonSharesAttributableToContingentlyIssuableShares
612000
CY2021Q1 us-gaap Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
49004000
CY2020Q1 us-gaap Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
47957000
CY2021Q1 us-gaap Earnings Per Share Basic
EarningsPerShareBasic
0.02
CY2020Q1 us-gaap Earnings Per Share Basic
EarningsPerShareBasic
-0.21
CY2021Q1 us-gaap Earnings Per Share Diluted
EarningsPerShareDiluted
0.02
CY2020Q1 us-gaap Earnings Per Share Diluted
EarningsPerShareDiluted
-0.21
CY2021Q1 us-gaap Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount
AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount
700000
CY2020Q1 us-gaap Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount
AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount
5900000
CY2021Q1 us-gaap Number Of Reportable Segments
NumberOfReportableSegments
2
CY2021Q1 us-gaap Revenue From Contract With Customer Excluding Assessed Tax
RevenueFromContractWithCustomerExcludingAssessedTax
127533000
CY2021Q1 us-gaap Gross Profit
GrossProfit
53601000
CY2020Q1 us-gaap Revenue From Contract With Customer Excluding Assessed Tax
RevenueFromContractWithCustomerExcludingAssessedTax
114523000
CY2020Q1 us-gaap Gross Profit
GrossProfit
51600000
CY2021Q1 adtn Number Of Product Categories
NumberOfProductCategories
3
CY2021Q1 us-gaap Revenue From Contract With Customer Excluding Assessed Tax
RevenueFromContractWithCustomerExcludingAssessedTax
127533000
CY2020Q1 us-gaap Revenue From Contract With Customer Excluding Assessed Tax
RevenueFromContractWithCustomerExcludingAssessedTax
114523000
CY2021Q1 us-gaap Revenue From Contract With Customer Excluding Assessed Tax
RevenueFromContractWithCustomerExcludingAssessedTax
127533000
CY2020Q1 us-gaap Revenue From Contract With Customer Excluding Assessed Tax
RevenueFromContractWithCustomerExcludingAssessedTax
114523000
CY2021Q1 us-gaap Standard Product Warranty Description
StandardProductWarrantyDescription
90 days to five years
CY2021Q1 us-gaap Product Warranty Accrual
ProductWarrantyAccrual
6500000
CY2020Q4 us-gaap Product Warranty Accrual
ProductWarrantyAccrual
7100000
CY2019Q4 us-gaap Product Warranty Accrual
ProductWarrantyAccrual
8394000
CY2021Q1 adtn Product Warranty Accrual Increase Decrease For Warranties Issued
ProductWarrantyAccrualIncreaseDecreaseForWarrantiesIssued
-231000
CY2020Q1 adtn Product Warranty Accrual Increase Decrease For Warranties Issued
ProductWarrantyAccrualIncreaseDecreaseForWarrantiesIssued
-55000
CY2021Q1 us-gaap Product Warranty Accrual Payments
ProductWarrantyAccrualPayments
443000
CY2020Q1 us-gaap Product Warranty Accrual Payments
ProductWarrantyAccrualPayments
704000
CY2021Q1 us-gaap Product Warranty Accrual
ProductWarrantyAccrual
6472000
CY2020Q1 us-gaap Product Warranty Accrual
ProductWarrantyAccrual
7635000
CY2021Q1 adtn Commitments Related To Performance Bonds
CommitmentsRelatedToPerformanceBonds
21200000
CY2020Q4 adtn Commitments Related To Performance Bonds
CommitmentsRelatedToPerformanceBonds
15200000
CY2021Q1 adtn Commitments Related To Performance Bonds Expiration Month And Year
CommitmentsRelatedToPerformanceBondsExpirationMonthAndYear
2024-08
CY2021Q1 adtn Letter Of Credit Secured By Pledge Of Portion Of Fixed Income Securities
LetterOfCreditSecuredByPledgeOfPortionOfFixedIncomeSecurities
18200000
CY2021Q1 adtn Commitments Towards Private Equity Funds
CommitmentsTowardsPrivateEquityFunds
4900000
CY2021Q1 us-gaap Restructuring Costs
RestructuringCosts
12500000
CY2020Q4 us-gaap Restructuring Reserve
RestructuringReserve
4186000
CY2021Q1 us-gaap Restructuring Charges
RestructuringCharges
301000
CY2021Q1 us-gaap Payments For Restructuring
PaymentsForRestructuring
2410000
CY2021Q1 us-gaap Restructuring Reserve
RestructuringReserve
2077000
CY2021Q1 us-gaap Restructuring Charges
RestructuringCharges
301000
CY2020Q1 us-gaap Restructuring Charges
RestructuringCharges
553000
CY2021Q1 us-gaap Restructuring Charges
RestructuringCharges
301000
CY2020Q1 us-gaap Restructuring Charges
RestructuringCharges
553000

Files In Submission

Name View Source Status
0001564590-21-025123-index-headers.html Edgar Link pending
0001564590-21-025123-index.html Edgar Link pending
0001564590-21-025123.txt Edgar Link pending
0001564590-21-025123-xbrl.zip Edgar Link pending
adtn-10q_20210331.htm Edgar Link pending
adtn-10q_20210331_htm.xml Edgar Link completed
adtn-20210331.xsd Edgar Link pending
adtn-20210331_cal.xml Edgar Link unprocessable
adtn-20210331_def.xml Edgar Link unprocessable
adtn-20210331_lab.xml Edgar Link unprocessable
adtn-20210331_pre.xml Edgar Link unprocessable
adtn-ex101_314.htm Edgar Link pending
adtn-ex102_274.htm Edgar Link pending
adtn-ex103_38.htm Edgar Link pending
adtn-ex104_37.htm Edgar Link pending
adtn-ex31_7.htm Edgar Link pending
adtn-ex32_6.htm Edgar Link pending
FilingSummary.xml Edgar Link unprocessable
Financial_Report.xlsx Edgar Link pending
g1q10jucszbx000001.jpg Edgar Link pending
MetaLinks.json Edgar Link pending
R1.htm Edgar Link pending
R10.htm Edgar Link pending
R11.htm Edgar Link pending
R12.htm Edgar Link pending
R13.htm Edgar Link pending
R14.htm Edgar Link pending
R15.htm Edgar Link pending
R16.htm Edgar Link pending
R17.htm Edgar Link pending
R18.htm Edgar Link pending
R19.htm Edgar Link pending
R2.htm Edgar Link pending
R20.htm Edgar Link pending
R21.htm Edgar Link pending
R22.htm Edgar Link pending
R23.htm Edgar Link pending
R24.htm Edgar Link pending
R25.htm Edgar Link pending
R26.htm Edgar Link pending
R27.htm Edgar Link pending
R28.htm Edgar Link pending
R29.htm Edgar Link pending
R3.htm Edgar Link pending
R30.htm Edgar Link pending
R31.htm Edgar Link pending
R32.htm Edgar Link pending
R33.htm Edgar Link pending
R34.htm Edgar Link pending
R35.htm Edgar Link pending
R36.htm Edgar Link pending
R37.htm Edgar Link pending
R38.htm Edgar Link pending
R39.htm Edgar Link pending
R4.htm Edgar Link pending
R40.htm Edgar Link pending
R41.htm Edgar Link pending
R42.htm Edgar Link pending
R43.htm Edgar Link pending
R44.htm Edgar Link pending
R45.htm Edgar Link pending
R46.htm Edgar Link pending
R47.htm Edgar Link pending
R48.htm Edgar Link pending
R49.htm Edgar Link pending
R5.htm Edgar Link pending
R50.htm Edgar Link pending
R51.htm Edgar Link pending
R52.htm Edgar Link pending
R53.htm Edgar Link pending
R54.htm Edgar Link pending
R55.htm Edgar Link pending
R56.htm Edgar Link pending
R57.htm Edgar Link pending
R58.htm Edgar Link pending
R59.htm Edgar Link pending
R6.htm Edgar Link pending
R60.htm Edgar Link pending
R61.htm Edgar Link pending
R62.htm Edgar Link pending
R63.htm Edgar Link pending
R64.htm Edgar Link pending
R65.htm Edgar Link pending
R66.htm Edgar Link pending
R67.htm Edgar Link pending
R68.htm Edgar Link pending
R69.htm Edgar Link pending
R7.htm Edgar Link pending
R70.htm Edgar Link pending
R71.htm Edgar Link pending
R72.htm Edgar Link pending
R73.htm Edgar Link pending
R74.htm Edgar Link pending
R75.htm Edgar Link pending
R76.htm Edgar Link pending
R77.htm Edgar Link pending
R78.htm Edgar Link pending
R79.htm Edgar Link pending
R8.htm Edgar Link pending
R80.htm Edgar Link pending
R81.htm Edgar Link pending
R82.htm Edgar Link pending
R83.htm Edgar Link pending
R84.htm Edgar Link pending
R85.htm Edgar Link pending
R86.htm Edgar Link pending
R87.htm Edgar Link pending
R88.htm Edgar Link pending
R89.htm Edgar Link pending
R9.htm Edgar Link pending
R90.htm Edgar Link pending
R91.htm Edgar Link pending
R92.htm Edgar Link pending
R93.htm Edgar Link pending
R94.htm Edgar Link pending
report.css Edgar Link pending
Show.js Edgar Link pending