$VIAV
VIAVI SOLUTIONS INC. Stock $viav

$viav Overview Financials Valuation SEC Filings Company Website

2019 Q4 Form 10-Q Financial Statement

#000091209320000004 Filed on February 06, 2020

Income Statement

Concept	2019 Q4	2018 Q4	2018 Q3
Revenue	$313.7M	$306.9M	$268.5M
YoY Change	2.22%	52.08%	37.55%
Cost Of Revenue	$124.2M	$128.9M	$118.1M
YoY Change	-3.65%	49.88%	51.02%
Gross Profit	$189.5M	$178.0M	$150.4M
YoY Change	6.46%	49.08%	33.45%
Gross Profit Margin	60.41%	58.0%	56.01%
Selling, General & Admin	$86.30M	$88.50M	$84.40M
YoY Change	-2.49%	15.38%	16.74%
% of Gross Profit	45.54%	49.72%	56.12%
Research & Development	$50.30M	$45.90M	$42.60M
YoY Change	9.59%	53.51%	46.39%
% of Gross Profit	26.54%	25.79%	28.32%
Depreciation & Amortization	$27.10M	$28.70M	$9.900M
YoY Change	-5.57%	81.65%	17.86%
% of Gross Profit	14.3%	16.12%	6.58%
Operating Expenses	$144.5M	$145.1M	$151.6M
YoY Change	-0.41%	28.98%	43.02%
Operating Profit	$45.00M	$32.90M	-$1.200M
YoY Change	36.78%	376.81%	-117.91%
Interest Expense	$8.400M	$8.100M	$10.10M
YoY Change	3.7%	-30.77%	-19.2%
% of Operating Profit	18.67%	24.62%
Other Income/Expense, Net	$1.300M	$1.500M	$1.700M
YoY Change	-13.33%	-48.28%	750.0%
Pretax Income	$37.90M	$26.30M	-$9.600M
YoY Change	44.11%	-1484.21%	71.43%
Income Tax	$9.900M	$10.90M	$5.700M
% Of Pretax Income	26.12%	41.44%
Net Earnings	$28.00M	$13.00M	-$15.30M
YoY Change	115.38%	-1281.82%	101.32%
Net Earnings / Revenue	8.93%	4.24%	-5.7%
Basic Earnings Per Share	$0.12	$0.06	-$0.07
Diluted Earnings Per Share	$0.12	$0.06	-$0.07
COMMON SHARES
Basic Shares Outstanding	230.0M shares	228.3M shares	227.2M shares
Diluted Shares Outstanding	238.3M shares	230.4M shares	227.2M shares

Balance Sheet

Concept	2019 Q4	2018 Q4	2018 Q3
SHORT-TERM ASSETS
Cash & Short-Term Investments	$553.0M	$496.0M	$652.0M
YoY Change	11.49%	-58.84%	-54.63%
Cash & Equivalents	$551.8M	$465.6M	$600.7M
Short-Term Investments	$2.000M	$30.00M	$52.00M
Other Short-Term Assets	$39.00M	$52.00M	$61.00M
YoY Change	-25.0%	-8.77%	-1.61%
Inventory	$91.90M	$87.20M	$89.50M
Prepaid Expenses	$13.30M	$12.60M	$12.70M
Receivables	$251.5M	$248.3M	$224.1M
Other Receivables	$19.00M	$7.000M	$0.00
Total Short-Term Assets	$954.8M	$889.9M	$1.026B
YoY Change	7.29%	-39.86%	-38.44%
LONG-TERM ASSETS
Property, Plant & Equipment	$173.5M	$180.6M	$170.8M
YoY Change	-3.93%	33.28%	24.76%
Goodwill	$384.5M	$371.1M	$341.1M
YoY Change	3.61%	117.4%	125.0%
Intangibles	$179.3M	$222.9M	$216.6M
YoY Change	-19.56%	414.78%	596.46%
Long-Term Investments
YoY Change
Other Assets	$60.80M	$20.50M	$20.70M
YoY Change	196.59%	44.37%	43.75%
Total Long-Term Assets	$904.9M	$908.3M	$862.6M
YoY Change	-0.37%	89.74%	94.5%
TOTAL ASSETS
Total Short-Term Assets	$954.8M	$889.9M	$1.026B
Total Long-Term Assets	$904.9M	$908.3M	$862.6M
Total Assets	$1.860B	$1.798B	$1.889B
YoY Change	3.42%	-8.18%	-10.5%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$48.90M	$55.40M	$60.30M
YoY Change	-11.73%	43.15%	84.97%
Accrued Expenses	$32.10M	$33.40M	$32.60M
YoY Change	-3.89%	12.46%	5.84%
Deferred Revenue	$53.20M	$59.20M	$61.50M
YoY Change	-10.14%		2.16%
Short-Term Debt	$0.00	$0.00	$0.00
YoY Change
Long-Term Debt Due		$0.00	$143.0M
YoY Change		-100.0%	-67.72%
Total Short-Term Liabilities	$261.9M	$297.8M	$429.6M
YoY Change	-12.06%	-56.21%	87.76%
LONG-TERM LIABILITIES
Long-Term Debt	$606.0M	$595.0M	$590.0M
YoY Change	1.85%	52.56%	-38.48%
Other Long-Term Liabilities	$243.7M	$221.9M	$186.5M
YoY Change	9.82%	36.3%	13.79%
Total Long-Term Liabilities	$243.7M	$221.9M	$186.5M
YoY Change	9.82%	36.3%	13.79%
TOTAL LIABILITIES
Total Short-Term Liabilities	$261.9M	$297.8M	$429.6M
Total Long-Term Liabilities	$243.7M	$221.9M	$186.5M
Total Liabilities	$505.6M	$519.7M	$616.1M
YoY Change	-2.71%	-38.34%	56.89%
SHAREHOLDERS EQUITY
Retained Earnings	-$69.36B	-$69.39B	-$69.39B
YoY Change	-0.05%	0.06%	0.13%
Common Stock	$70.25B	$70.23B	$70.22B
YoY Change	0.04%	0.08%	0.05%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$764.3M	$710.1M	$709.6M
YoY Change
Total Liabilities & Shareholders Equity	$1.860B	$1.798B	$1.889B
YoY Change	3.42%	-8.18%	-10.5%

Cashflow Statement

Concept	2019 Q4	2018 Q4	2018 Q3
OPERATING ACTIVITIES
Net Income	$28.00M	$13.00M	-$15.30M
YoY Change	115.38%	-1281.82%	101.32%
Depreciation, Depletion And Amortization	$27.10M	$28.70M	$9.900M
YoY Change	-5.57%	81.65%	17.86%
Cash From Operating Activities	$38.00M	$41.50M	$27.60M
YoY Change	-8.43%	73.64%	150.91%
INVESTING ACTIVITIES
Capital Expenditures	-$6.200M	-$12.10M	$12.10M
YoY Change	-48.76%	86.15%	44.05%
Acquisitions			$0.00
YoY Change			-100.0%
Other Investing Activities	$1.400M	-$5.000M	$119.1M
YoY Change	-128.0%	-76.85%	153.4%
Cash From Investing Activities	-$4.800M	-$17.10M	$107.0M
YoY Change	-71.93%	-39.15%	-274.27%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net			$0.00
YoY Change			-100.0%
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	-17.50M	-155.6M	-$138.4M
YoY Change	-88.75%	302.07%	-20.73%
NET CHANGE
Cash From Operating Activities	38.00M	41.50M	$27.60M
Cash From Investing Activities	-4.800M	-17.10M	$107.0M
Cash From Financing Activities	-17.50M	-155.6M	-$138.4M
Net Change In Cash	15.70M	-131.2M	-$11.00M
YoY Change	-111.97%	205.83%	-94.91%
FREE CASH FLOW
Cash From Operating Activities	$38.00M	$41.50M	$27.60M
Capital Expenditures	-$6.200M	-$12.10M	$12.10M
Free Cash Flow	$44.20M	$53.60M	$15.50M
YoY Change	-17.54%	76.32%	496.15%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2019Q2	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	1000000000	shares
CY2019Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	1000000000	shares
	dei	Entity Central Index Key EntityCentralIndexKey	0000912093
	dei	Amendment Flag AmendmentFlag	false
	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--06-27
	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	Q2
	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2020
CY2019Q2	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.001
CY2019Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.001
CY2019Q2	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	229000000	shares
CY2019Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	230000000	shares
CY2019Q2	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	229000000	shares
CY2019Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	230000000	shares
CY2019Q2	us-gaap	Guarantee Obligations Current Carrying Value GuaranteeObligationsCurrentCarryingValue	0	USD
CY2018Q4	us-gaap	Other Than Temporary Impairment Loss Debt Securities Portion Recognized In Earnings OtherThanTemporaryImpairmentLossDebtSecuritiesPortionRecognizedInEarnings	0	USD
	us-gaap	Other Than Temporary Impairment Loss Debt Securities Portion Recognized In Earnings OtherThanTemporaryImpairmentLossDebtSecuritiesPortionRecognizedInEarnings	0	USD
	us-gaap	Other Than Temporary Impairment Loss Debt Securities Portion Recognized In Earnings OtherThanTemporaryImpairmentLossDebtSecuritiesPortionRecognizedInEarnings	0	USD
CY2018Q4	us-gaap	Payment For Contingent Consideration Liability Investing Activities PaymentForContingentConsiderationLiabilityInvestingActivities	0	USD
	us-gaap	Payment For Contingent Consideration Liability Investing Activities PaymentForContingentConsiderationLiabilityInvestingActivities	0	USD
	us-gaap	Payment For Contingent Consideration Liability Investing Activities PaymentForContingentConsiderationLiabilityInvestingActivities	0	USD
	dei	Document Type DocumentType	10-Q
	dei	Document Quarterly Report DocumentQuarterlyReport	true
	dei	Document Period End Date DocumentPeriodEndDate	2019-12-28
	dei	Document Transition Report DocumentTransitionReport	false
	dei	Entity File Number EntityFileNumber	000-22874
	dei	Entity Registrant Name EntityRegistrantName	Viavi Solutions Inc.
	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	DE
	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	94-2579683
	dei	Entity Address Address Line1 EntityAddressAddressLine1	6001 America Center Drive
	dei	Entity Address City Or Town EntityAddressCityOrTown	San Jose
	dei	Entity Address State Or Province EntityAddressStateOrProvince	CA
	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	95002
	dei	Local Phone Number LocalPhoneNumber	404-3600
	dei	City Area Code CityAreaCode	408
CY2019Q4	us-gaap	Cost Of Revenue CostOfRevenue	124200000	USD
	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	613500000	USD
	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	575400000	USD
CY2018Q4	us-gaap	Cost Depreciation Amortization And Depletion CostDepreciationAmortizationAndDepletion	8500000	USD
	us-gaap	Cost Depreciation Amortization And Depletion CostDepreciationAmortizationAndDepletion	16800000	USD
	us-gaap	Cost Depreciation Amortization And Depletion CostDepreciationAmortizationAndDepletion	17900000	USD
CY2019Q4	us-gaap	Cost Depreciation Amortization And Depletion CostDepreciationAmortizationAndDepletion	8400000	USD
	dei	Security12b Title Security12bTitle	Common Stock, par value of $0.001 per share
	dei	Trading Symbol TradingSymbol	VIAV
	dei	Security Exchange Name SecurityExchangeName	NASDAQ
	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
	dei	Entity Interactive Data Current EntityInteractiveDataCurrent	Yes
	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
	dei	Entity Small Business EntitySmallBusiness	false
	dei	Entity Emerging Growth Company EntityEmergingGrowthCompany	false
	dei	Entity Shell Company EntityShellCompany	false
CY2020Q1	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	230252773	shares
CY2019Q4	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	313700000	USD
CY2018Q4	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	306900000	USD
CY2018Q4	us-gaap	Cost Of Revenue CostOfRevenue	128900000	USD
	us-gaap	Cost Of Revenue CostOfRevenue	249600000	USD
	us-gaap	Cost Of Revenue CostOfRevenue	247000000.0	USD
CY2019Q4	us-gaap	Gross Profit GrossProfit	189500000	USD
CY2018Q4	us-gaap	Gross Profit GrossProfit	178000000.0	USD
	us-gaap	Gross Profit GrossProfit	363900000	USD
	us-gaap	Gross Profit GrossProfit	328400000	USD
CY2019Q4	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	50300000	USD
CY2018Q4	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	45900000	USD
	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	101800000	USD
	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	88500000	USD
CY2019Q4	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	86300000	USD
CY2018Q4	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	88500000	USD
	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	179500000	USD
	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	172900000	USD
CY2019Q4	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	8800000	USD
CY2018Q4	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	10400000	USD
	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	17500000	USD
	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	20200000	USD
CY2019Q4	us-gaap	Restructuring Charges RestructuringCharges	-900000	USD
CY2018Q4	us-gaap	Restructuring Charges RestructuringCharges	300000	USD
	us-gaap	Restructuring Charges RestructuringCharges	-600000	USD
	us-gaap	Restructuring Charges RestructuringCharges	15100000	USD
CY2019Q4	us-gaap	Operating Expenses OperatingExpenses	144500000	USD
CY2018Q4	us-gaap	Operating Expenses OperatingExpenses	145100000	USD
	us-gaap	Operating Expenses OperatingExpenses	298200000	USD
	us-gaap	Operating Expenses OperatingExpenses	296700000	USD
CY2019Q4	us-gaap	Operating Income Loss OperatingIncomeLoss	45000000.0	USD
CY2018Q4	us-gaap	Operating Income Loss OperatingIncomeLoss	32900000	USD
	us-gaap	Operating Income Loss OperatingIncomeLoss	65700000	USD
	us-gaap	Operating Income Loss OperatingIncomeLoss	31700000	USD
CY2019Q4	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	1300000	USD
CY2018Q4	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	1500000	USD
	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	4000000.0	USD
	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	3200000	USD
CY2019Q4	us-gaap	Interest Expense InterestExpense	8400000	USD
CY2018Q4	us-gaap	Interest Expense InterestExpense	8100000	USD
	us-gaap	Interest Expense InterestExpense	16700000	USD
	us-gaap	Interest Expense InterestExpense	18200000	USD
CY2019Q4	us-gaap	Income Loss Including Portion Attributable To Noncontrolling Interest IncomeLossIncludingPortionAttributableToNoncontrollingInterest	37900000	USD
CY2018Q4	us-gaap	Income Loss Including Portion Attributable To Noncontrolling Interest IncomeLossIncludingPortionAttributableToNoncontrollingInterest	26300000	USD
	us-gaap	Income Loss Including Portion Attributable To Noncontrolling Interest IncomeLossIncludingPortionAttributableToNoncontrollingInterest	53000000.0	USD
	us-gaap	Income Loss Including Portion Attributable To Noncontrolling Interest IncomeLossIncludingPortionAttributableToNoncontrollingInterest	16700000	USD
CY2019Q4	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	9900000	USD
CY2018Q4	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	10900000	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	18200000	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	16600000	USD
CY2019Q4	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	28000000.0	USD
CY2018Q4	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	15400000	USD
	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	34800000	USD
	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	100000	USD
CY2019Q4	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity	0	USD
CY2018Q4	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity	-2400000	USD
	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity	0	USD
	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity	-2400000	USD
CY2019Q4	us-gaap	Net Income Loss NetIncomeLoss	28000000.0	USD
CY2018Q4	us-gaap	Net Income Loss NetIncomeLoss	13000000.0	USD
	us-gaap	Net Income Loss NetIncomeLoss	34800000	USD
	us-gaap	Net Income Loss NetIncomeLoss	-2300000	USD
CY2019Q4	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	0.12
CY2018Q4	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	0.07
	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	0.15
	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	0.00
CY2019Q4	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	0
CY2018Q4	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	-0.01
	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	0
	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	-0.01
CY2019Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.12
CY2018Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.06
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.15
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.01
CY2019Q4	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	0.12
CY2018Q4	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	0.07
	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	0.15
	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	0.00
CY2019Q4	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	0
CY2018Q4	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	-0.01
	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	0
	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	-0.01
CY2019Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.12
CY2018Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.06
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.15
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.01
CY2019Q4	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	230000000.0	shares
CY2018Q4	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	228300000	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	229700000	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	227800000	shares
CY2019Q4	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	238300000	shares
CY2018Q4	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	230400000	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	237400000	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	230500000	shares
CY2019Q4	us-gaap	Net Income Loss NetIncomeLoss	28000000.0	USD
CY2018Q4	us-gaap	Net Income Loss NetIncomeLoss	13000000.0	USD
	us-gaap	Net Income Loss NetIncomeLoss	34800000	USD
	us-gaap	Net Income Loss NetIncomeLoss	-2300000	USD
CY2019Q4	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent	28000000.0	USD
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	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent	600000	USD
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CY2019Q4	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	0	USD
CY2018Q4	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	0	USD
	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	0	USD
	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	200000	USD
CY2019Q4	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	0	USD
CY2018Q4	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	-200000	USD
	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	0	USD
	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	-400000	USD
CY2019Q4	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax	-800000	USD
CY2018Q4	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax	-400000	USD
	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax	-1500000	USD
	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax	-1000000.0	USD
CY2019Q4	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	28800000	USD
CY2018Q4	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-12400000	USD
	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	2100000	USD
	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-24500000	USD
CY2019Q4	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	56800000	USD
CY2018Q4	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	600000	USD
	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	36900000	USD
	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-26800000	USD
CY2019Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	551800000	USD
CY2019Q2	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	521500000	USD
CY2019Q4	us-gaap	Short Term Investments ShortTermInvestments	1600000	USD
CY2019Q2	us-gaap	Short Term Investments ShortTermInvestments	1500000	USD
CY2019Q4	us-gaap	Restricted Cash And Cash Equivalents At Carrying Value RestrictedCashAndCashEquivalentsAtCarryingValue	3500000	USD
CY2019Q2	us-gaap	Restricted Cash And Cash Equivalents At Carrying Value RestrictedCashAndCashEquivalentsAtCarryingValue	3500000	USD
CY2019Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	251500000	USD
CY2019Q2	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	237700000	USD
CY2019Q4	us-gaap	Inventory Net InventoryNet	91900000	USD
CY2019Q2	us-gaap	Inventory Net InventoryNet	102700000	USD
CY2019Q4	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	54500000	USD
CY2019Q2	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	49900000	USD
CY2019Q4	us-gaap	Assets Current AssetsCurrent	954800000	USD
CY2019Q2	us-gaap	Assets Current AssetsCurrent	916800000	USD
CY2019Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	173500000	USD
CY2019Q2	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	179900000	USD
CY2019Q4	us-gaap	Goodwill Goodwill	384500000	USD
CY2019Q2	us-gaap	Goodwill Goodwill	381100000	USD
CY2019Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	179300000	USD
CY2019Q2	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	211600000	USD
CY2019Q4	us-gaap	Deferred Income Tax Assets Net DeferredIncomeTaxAssetsNet	106800000	USD
CY2019Q2	us-gaap	Deferred Income Tax Assets Net DeferredIncomeTaxAssetsNet	108400000	USD
CY2019Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	60800000	USD
CY2019Q2	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	17300000	USD
CY2019Q4	us-gaap	Assets Assets	1859700000	USD
CY2019Q2	us-gaap	Assets Assets	1815100000	USD
CY2019Q4	us-gaap	Accounts Payable Current AccountsPayableCurrent	48900000	USD
CY2019Q2	us-gaap	Accounts Payable Current AccountsPayableCurrent	63400000	USD
CY2019Q4	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	66500000	USD
CY2019Q2	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	58700000	USD
CY2019Q4	us-gaap	Contract With Customer Liability Current ContractWithCustomerLiabilityCurrent	53200000	USD
CY2019Q2	us-gaap	Contract With Customer Liability Current ContractWithCustomerLiabilityCurrent	55300000	USD
CY2019Q4	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	32100000	USD
CY2019Q2	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	72400000	USD
CY2019Q2	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2019Q4	us-gaap	Common Stock Value CommonStockValue	200000	USD
CY2019Q2	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	34200000	USD
CY2019Q4	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	61200000	USD
CY2019Q4	us-gaap	Liabilities Current LiabilitiesCurrent	261900000	USD
CY2019Q2	us-gaap	Liabilities Current LiabilitiesCurrent	284000000.0	USD
CY2019Q4	us-gaap	Convertible Debt Noncurrent ConvertibleDebtNoncurrent	589800000	USD
CY2019Q2	us-gaap	Convertible Debt Noncurrent ConvertibleDebtNoncurrent	578800000	USD
CY2019Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	243700000	USD
CY2019Q2	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	226500000	USD
CY2019Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2019Q2	us-gaap	Common Stock Value CommonStockValue	200000	USD
CY2019Q4	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	70254000000.0	USD
CY2019Q2	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	70244700000	USD
CY2019Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	-69357400000	USD
CY2019Q2	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	-69384500000	USD
CY2019Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-132500000	USD
CY2019Q2	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-134600000	USD
CY2019Q4	us-gaap	Stockholders Equity StockholdersEquity	764300000	USD
CY2019Q2	us-gaap	Stockholders Equity StockholdersEquity	725800000	USD
CY2019Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	1859700000	USD
CY2019Q2	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	1815100000	USD
	us-gaap	Net Income Loss NetIncomeLoss	34800000	USD
	us-gaap	Net Income Loss NetIncomeLoss	-2300000	USD
	us-gaap	Depreciation Depreciation	19700000	USD
	us-gaap	Depreciation Depreciation	19700000	USD
	viav	Finite Lived Intangible Assets Amortized Expense FiniteLivedIntangibleAssetsAmortizedExpense	34300000	USD
	viav	Finite Lived Intangible Assets Amortized Expense FiniteLivedIntangibleAssetsAmortizedExpense	38100000	USD
	us-gaap	Share Based Compensation ShareBasedCompensation	21600000	USD
	us-gaap	Share Based Compensation ShareBasedCompensation	17700000	USD
	us-gaap	Amortization Of Financing Costs And Discounts AmortizationOfFinancingCostsAndDiscounts	11000000.0	USD
	us-gaap	Amortization Of Financing Costs And Discounts AmortizationOfFinancingCostsAndDiscounts	12100000	USD
	us-gaap	Investment Income Net Amortization Of Discount And Premium InvestmentIncomeNetAmortizationOfDiscountAndPremium	0	USD
	us-gaap	Investment Income Net Amortization Of Discount And Premium InvestmentIncomeNetAmortizationOfDiscountAndPremium	200000	USD
	us-gaap	Business Combination Contingent Consideration Arrangements Change In Amount Of Contingent Consideration Liability1 BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability1	-4300000	USD
	us-gaap	Business Combination Contingent Consideration Arrangements Change In Amount Of Contingent Consideration Liability1 BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability1	0	USD
	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	0	USD
	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	-700000	USD
	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-2400000	USD
	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-1600000	USD
	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	-3200000	USD
	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	13500000	USD
	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	33500000	USD
	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	-3400000	USD
	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	2500000	USD
	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	700000	USD
	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	-14200000	USD
	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	-3000000.0	USD
	us-gaap	Increase Decrease In Accrued Income Taxes Payable IncreaseDecreaseInAccruedIncomeTaxesPayable	5800000	USD
	us-gaap	Increase Decrease In Accrued Income Taxes Payable IncreaseDecreaseInAccruedIncomeTaxesPayable	7000000.0	USD
	us-gaap	Increase Decrease In Contract With Customer Liability IncreaseDecreaseInContractWithCustomerLiability	2900000	USD
	us-gaap	Increase Decrease In Contract With Customer Liability IncreaseDecreaseInContractWithCustomerLiability	300000	USD
	us-gaap	Increase Decrease In Deferred Income Taxes IncreaseDecreaseInDeferredIncomeTaxes	2800000	USD
	us-gaap	Increase Decrease In Deferred Income Taxes IncreaseDecreaseInDeferredIncomeTaxes	4500000	USD
	us-gaap	Increase Decrease In Employee Related Liabilities IncreaseDecreaseInEmployeeRelatedLiabilities	8200000	USD
	us-gaap	Increase Decrease In Employee Related Liabilities IncreaseDecreaseInEmployeeRelatedLiabilities	9500000	USD
	us-gaap	Increase Decrease In Other Accrued Liabilities IncreaseDecreaseInOtherAccruedLiabilities	-37300000	USD
	us-gaap	Increase Decrease In Other Accrued Liabilities IncreaseDecreaseInOtherAccruedLiabilities	3200000	USD
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	69300000	USD
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	69100000	USD
	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	0	USD
	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	42200000	USD
	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	0	USD
	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	97000000.0	USD
	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	13300000	USD
	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	24200000	USD
	us-gaap	Proceeds From Sale Of Productive Assets ProceedsFromSaleOfProductiveAssets	3100000	USD
	us-gaap	Proceeds From Sale Of Productive Assets ProceedsFromSaleOfProductiveAssets	3000000.0	USD
	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	500000	USD
	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	28100000	USD
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-10700000	USD
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	89900000	USD
	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	0	USD
	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	500000	USD
	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	10700000	USD
	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	8500000	USD
	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	15100000	USD
	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	9800000	USD
	us-gaap	Repayments Of Convertible Debt RepaymentsOfConvertibleDebt	0	USD
	us-gaap	Repayments Of Convertible Debt RepaymentsOfConvertibleDebt	276900000	USD
	us-gaap	Repayments Of Long Term Debt And Capital Securities RepaymentsOfLongTermDebtAndCapitalSecurities	1800000	USD
	us-gaap	Repayments Of Long Term Debt And Capital Securities RepaymentsOfLongTermDebtAndCapitalSecurities	400000	USD
	us-gaap	Proceeds From Stock Plans ProceedsFromStockPlans	2300000	USD
	us-gaap	Proceeds From Stock Plans ProceedsFromStockPlans	2100000	USD
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-25300000	USD
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-294000000.0	USD
	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	-3500000	USD
	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	-11200000	USD
	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	29800000	USD
	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-146200000	USD
CY2019Q2	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	530400000	USD
CY2018Q2	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	624300000	USD
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	560200000	USD
CY2018Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	478100000	USD
CY2019Q3	us-gaap	Stockholders Equity StockholdersEquity	708100000	USD
CY2019Q4	us-gaap	Net Income Loss NetIncomeLoss	28000000.0	USD
CY2019Q4	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	28800000	USD
CY2019Q4	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	-2900000	USD
CY2019Q4	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	11500000	USD
CY2019Q4	us-gaap	Stock Repurchased And Retired During Period Value StockRepurchasedAndRetiredDuringPeriodValue	9200000	USD
CY2019Q4	us-gaap	Stockholders Equity StockholdersEquity	764300000	USD
CY2018Q3	us-gaap	Stockholders Equity StockholdersEquity	709600000	USD
CY2018Q4	us-gaap	Net Income Loss NetIncomeLoss	13000000.0	USD
CY2018Q4	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-12400000	USD
CY2018Q4	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	-1500000	USD
CY2018Q4	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	9700000	USD
CY2018Q4	us-gaap	Stock Repurchased And Retired During Period Value StockRepurchasedAndRetiredDuringPeriodValue	8500000	USD
CY2018Q4	us-gaap	Stockholders Equity Other StockholdersEquityOther	-200000	USD
CY2018Q4	us-gaap	Stockholders Equity StockholdersEquity	710100000	USD
CY2019Q2	us-gaap	Stockholders Equity StockholdersEquity	725800000	USD
CY2019Q2	us-gaap	Cumulative Effect Of New Accounting Principle In Period Of Adoption CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption	3000000.0	USD
	us-gaap	Net Income Loss NetIncomeLoss	34800000	USD
	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	2100000	USD
	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	-12600000	USD
	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	21900000	USD
	us-gaap	Stock Repurchased And Retired During Period Value StockRepurchasedAndRetiredDuringPeriodValue	10700000	USD
CY2019Q4	us-gaap	Stockholders Equity StockholdersEquity	764300000	USD
CY2018Q2	us-gaap	Stockholders Equity StockholdersEquity	734900000	USD
	us-gaap	Net Income Loss NetIncomeLoss	-2300000	USD
	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-24500000	USD
	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	-7300000	USD
	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	17900000	USD
	us-gaap	Stock Repurchased And Retired During Period Value StockRepurchasedAndRetiredDuringPeriodValue	8500000	USD
	us-gaap	Stockholders Equity Other StockholdersEquityOther	100000	USD
CY2018Q4	us-gaap	Stockholders Equity StockholdersEquity	710100000	USD
	us-gaap	Contract With Customer Liability Revenue Recognized ContractWithCustomerLiabilityRevenueRecognized	49100000	USD
	us-gaap	Fiscal Period FiscalPeriod	<div style="line-height:120%;padding-bottom:10px;padding-top:10px;text-align:justify;font-size:10pt;"><span style="font-family:Arial;font-size:10pt;color:#000000;font-style:normal;font-weight:normal;text-decoration:underline;">Fiscal Years</span></div><div style="line-height:120%;padding-bottom:10px;padding-top:10px;text-align:justify;text-indent:30px;font-size:10pt;"><span style="font-family:Arial;font-size:10pt;">The Company utilizes a </span><span style="font-family:Arial;font-size:10pt;">52</span><span style="font-family:Arial;font-size:10pt;">-</span><span style="font-family:Arial;font-size:10pt;">53</span><span style="font-family:Arial;font-size:10pt;"> week fiscal year ending on the Saturday closest to June 30th. The Company’s fiscal </span><span style="font-family:Arial;font-size:10pt;">2020</span><span style="font-family:Arial;font-size:10pt;"> is a </span><span style="font-family:Arial;font-size:10pt;">52</span><span style="font-family:Arial;font-size:10pt;">-week year ending on </span><span style="font-family:Arial;font-size:10pt;">June 27, 2020</span><span style="font-family:Arial;font-size:10pt;">. The Company’s fiscal </span><span style="font-family:Arial;font-size:10pt;">2019</span><span style="font-family:Arial;font-size:10pt;"> was a </span><span style="font-family:Arial;font-size:10pt;">52</span><span style="font-family:Arial;font-size:10pt;">-week year ending on </span><span style="font-family:Arial;font-size:10pt;">June 29, 2019</span><span style="font-family:Arial;font-size:10pt;">.</span></div>
	us-gaap	Use Of Estimates UseOfEstimates	<div style="line-height:120%;padding-bottom:10px;padding-top:10px;text-align:justify;font-size:10pt;"><span style="font-family:Arial;font-size:10pt;color:#000000;font-style:normal;font-weight:normal;text-decoration:underline;">Use of Estimates</span></div><div style="line-height:120%;padding-bottom:10px;padding-top:10px;text-align:justify;text-indent:30px;font-size:10pt;"><span style="font-family:Arial;font-size:10pt;">The preparation of the Company’s consolidated financial statements requires management to make estimates and assumptions that affect the reported amount of assets and liabilities at the date of the financial statements, the reported amount of net revenues and expenses and the disclosure of commitments and contingencies during the reporting periods. The Company bases estimates on historical experience and assumptions about future periods that are believed to be reasonable based on available information. The Company’s reported financial positions or results of operations may be materially different under changed conditions or when using different estimates and assumptions, particularly with respect to significant accounting policies. If estimates or assumptions differ from actual results, subsequent periods are adjusted to reflect readily available current information.</span></div>
	us-gaap	Description Of New Accounting Pronouncements Not Yet Adopted DescriptionOfNewAccountingPronouncementsNotYetAdopted	<div style="line-height:120%;padding-bottom:10px;padding-top:10px;font-size:10pt;"><span style="font-family:Arial;font-size:10pt;font-style:normal;font-weight:bold;text-decoration:none;">Note 2. Recently Issued Accounting Pronouncements</span><span style="font-family:Arial;font-size:10pt;font-style:normal;font-weight:bold;text-decoration:none;"> </span></div><div style="line-height:120%;padding-bottom:10px;padding-top:10px;text-align:justify;font-size:10pt;"><span style="font-family:Arial;font-size:10pt;color:#000000;font-style:normal;font-weight:normal;text-decoration:underline;">Recent Accounting Pronouncements Adopted</span></div><div style="line-height:120%;padding-bottom:10px;padding-top:10px;text-align:justify;text-indent:30px;font-size:10pt;"><span style="font-family:Arial;font-size:10pt;">In 2016, the Financial Accounting Standards Board (“FASB”) issued guidance on the financial reporting requirements for leasing arrangements, ASC 842 - </span><span style="font-family:Arial;font-size:10pt;font-style:italic;">Leases</span><span style="font-family:Arial;font-size:10pt;">. ASC 842 requires lessees to recognize operating leases with a term greater than one year on their balance sheets as Right-of-Use (“</span><span style="font-family:Arial;font-size:10pt;">ROU</span><span style="font-family:Arial;font-size:10pt;">”) assets and corresponding lease liabilities, measured at the present value of the lease payments. In the first quarter of fiscal 2020 the Company adopted this standard using the modified retrospective approach. The Company elected to apply the optional transition approach of not adjusting comparative period financial statements for the adoption impact. The Company also elected the package of practical expedients to not reassess whether a contract contains a lease, lease classification and accounting for initial direct costs. Adoption of the leasing standard resulted in </span><span style="font-family:Arial;font-size:10pt;"><span>$35.5 million</span></span><span style="font-family:Arial;font-size:10pt;"> of ROU assets and </span><span style="font-family:Arial;font-size:10pt;"><span>$37.0 million</span></span><span style="font-family:Arial;font-size:10pt;"> of lease </span></div><div style="line-height:120%;padding-bottom:10px;padding-top:10px;text-align:justify;font-size:10pt;"><span style="font-family:Arial;font-size:10pt;">liabilities on June 30, 2019. In addition, the Company recorded an adjustment to accumulative deficit, net of taxes, of </span><span style="font-family:Arial;font-size:10pt;"><span>$3.0 million</span></span><span style="font-family:Arial;font-size:10pt;"> from the recognition of previously deferred profit under sale-leaseback arrangements and de-recognition of related real estate assets of </span><span style="font-family:Arial;font-size:10pt;"><span>$7.1 million</span></span><span style="font-family:Arial;font-size:10pt;"> and financing obligations of </span><span style="font-family:Arial;font-size:10pt;"><span>$10.1 million</span></span><span style="font-family:Arial;font-size:10pt;">. The adoption of the new standard did not have a material impact on the Company’s Consolidated Statements of Operations and Statements of Cash Flows. For additional information refer to “</span><span style="font-family:Arial;font-size:10pt;">Note 12. Leases</span><span style="font-family:Arial;font-size:10pt;">.”</span></div><div style="line-height:120%;padding-bottom:10px;padding-top:10px;text-align:justify;font-size:10pt;"><span style="font-family:Arial;font-size:10pt;color:#000000;font-style:normal;font-weight:normal;text-decoration:underline;">Recent Accounting Pronouncements Not Yet Adopted</span></div><div style="line-height:120%;padding-bottom:10px;padding-top:0px;text-align:justify;text-indent:30px;font-size:10pt;"><span style="font-family:Arial;font-size:10pt;">In December 2019, the FASB issued guidance which simplifies the accounting for income taxes, eliminates certain exceptions within ASC 740, </span><span style="font-family:Arial;font-size:10pt;font-style:italic;">Income Taxes</span><span style="font-family:Arial;font-size:10pt;">, and clarifies certain aspects of the current guidance to promote consistency among reporting entities. The guidance is effective for the Company in the first quarter of fiscal year 2022 and early adoption is permitted. The Company is evaluating the effects that the adoption of this guidance will have on its consolidated financial statements.</span></div><div style="line-height:120%;padding-bottom:10px;padding-top:10px;text-align:justify;text-indent:30px;font-size:10pt;"><span style="font-family:Arial;font-size:10pt;">In August 2018, the FASB issued guidance to amend the disclosure requirements related to defined benefit pension and other post-retirement plans. Some of the changes include adding a disclosure requirement for significant gains and losses related to changes in the benefit obligation for the period and removing the amounts in accumulated other comprehensive income expected to be recognized as components of net periodic benefit cost over the next fiscal year. This guidance is effective for the Company in the first quarter of fiscal 2021 and early adoption is permitted. The Company is evaluating the impact of adopting this new accounting guidance on its Consolidated Financial Statements.</span></div><div style="line-height:120%;padding-bottom:10px;padding-top:10px;text-align:justify;text-indent:30px;font-size:10pt;"><span style="font-family:Arial;font-size:10pt;">In June 2016, the FASB issued guidance that changes the accounting for recognizing impairments of financial assets. Under the new guidance, credit losses for certain types of financial instruments will be estimated based on expected losses. The new guidance also modifies the impairment models for available-for-sale debt securities and for purchased financial assets with credit deterioration since their origination. The guidance is effective for the Company in the first quarter of fiscal 2021 and earlier adoption is permitted. The Company is evaluating the impact of adopting this new accounting guidance on its Consolidated Financial Statements.</span></div>
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CY2019Q2	us-gaap	Contract With Customer Liability ContractWithCustomerLiability	68500000	USD
CY2019Q4	viav	Contract With Customer Liability Cumulative Catch Up Adjustment New Contracts ContractWithCustomerLiabilityCumulativeCatchUpAdjustmentNewContracts	33600000	USD
	viav	Contract With Customer Liability Cumulative Catch Up Adjustment New Contracts ContractWithCustomerLiabilityCumulativeCatchUpAdjustmentNewContracts	52500000	USD
CY2019Q4	us-gaap	Contract With Customer Liability Revenue Recognized ContractWithCustomerLiabilityRevenueRecognized	26100000	USD
CY2019Q4	us-gaap	Contract With Customer Liability ContractWithCustomerLiability	71900000	USD
CY2019Q4	us-gaap	Contract With Customer Liability ContractWithCustomerLiability	71900000	USD
CY2019Q4	us-gaap	Contract With Customer Liability Current ContractWithCustomerLiabilityCurrent	53200000	USD
CY2019Q4	us-gaap	Contract With Customer Liability Current ContractWithCustomerLiabilityCurrent	53200000	USD
CY2019Q4	us-gaap	Contract With Customer Liability Noncurrent ContractWithCustomerLiabilityNoncurrent	18700000	USD
CY2019Q4	us-gaap	Contract With Customer Liability Noncurrent ContractWithCustomerLiabilityNoncurrent	18700000	USD
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	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	34800000	USD
	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	100000	USD
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CY2018Q4	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity	-2400000	USD
	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity	0	USD
	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity	-2400000	USD
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	us-gaap	Net Income Loss NetIncomeLoss	34800000	USD
	us-gaap	Net Income Loss NetIncomeLoss	-2300000	USD
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	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	229700000	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	227800000	shares
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CY2018Q4	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	2100000	shares
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	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	2700000	shares
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	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.15
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.01
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CY2019Q2	us-gaap	Inventory Net InventoryNet	102700000	USD
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CY2019Q4	us-gaap	Value Added Tax Receivable Current ValueAddedTaxReceivableCurrent	10500000	USD
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CY2019Q4	us-gaap	Contract With Customer Liability Noncurrent ContractWithCustomerLiabilityNoncurrent	18700000	USD
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CY2019Q4	us-gaap	Business Combination Contingent Consideration Liability Noncurrent BusinessCombinationContingentConsiderationLiabilityNoncurrent	33300000	USD
CY2019Q2	us-gaap	Business Combination Contingent Consideration Liability Noncurrent BusinessCombinationContingentConsiderationLiabilityNoncurrent	37700000	USD
CY2019Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	31400000	USD
CY2019Q4	us-gaap	Liability For Uncertain Tax Positions Noncurrent LiabilityForUncertainTaxPositionsNoncurrent	13900000	USD
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CY2019Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	243700000	USD
CY2019Q2	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	226500000	USD
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CY2019Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	400000	USD
CY2019Q4	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	500000	USD
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CY2019Q4	viav	Available For Sale Securities Debt Maturities After Five Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterFiveYearsAmortizedCost	900000	USD
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	us-gaap	Goodwill Translation And Purchase Accounting Adjustments GoodwillTranslationAndPurchaseAccountingAdjustments	3400000	USD
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	us-gaap	Cost Depreciation Amortization And Depletion CostDepreciationAmortizationAndDepletion	16800000	USD
	us-gaap	Cost Depreciation Amortization And Depletion CostDepreciationAmortizationAndDepletion	17900000	USD
CY2019Q4	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	8800000	USD
CY2018Q4	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	10400000	USD
	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	17500000	USD
	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	20200000	USD
CY2019Q4	viav	Finite Lived Intangible Assets Amortized Expense FiniteLivedIntangibleAssetsAmortizedExpense	17200000	USD
CY2018Q4	viav	Finite Lived Intangible Assets Amortized Expense FiniteLivedIntangibleAssetsAmortizedExpense	18900000	USD
	viav	Finite Lived Intangible Assets Amortized Expense FiniteLivedIntangibleAssetsAmortizedExpense	34300000	USD
	viav	Finite Lived Intangible Assets Amortized Expense FiniteLivedIntangibleAssetsAmortizedExpense	38100000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Remainder Of Fiscal Year FiniteLivedIntangibleAssetsAmortizationExpenseRemainderOfFiscalYear	34000000.0	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Two FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo	64400000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Three FiniteLivedIntangibleAssetsAmortizationExpenseYearThree	37700000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Four FiniteLivedIntangibleAssetsAmortizationExpenseYearFour	23800000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Five FiniteLivedIntangibleAssetsAmortizationExpenseYearFive	9200000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense After Year Five FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive	10200000	USD
CY2019Q4	viav	Finite Lived Intangible Assets Net Excluding Researchand Developmentand Goodwill FiniteLivedIntangibleAssetsNetExcludingResearchandDevelopmentandGoodwill	179300000	USD
CY2019Q4	us-gaap	Interest Expense Debt Excluding Amortization InterestExpenseDebtExcludingAmortization	2200000	USD
CY2018Q4	us-gaap	Interest Expense Debt Excluding Amortization InterestExpenseDebtExcludingAmortization	2100000	USD
	us-gaap	Interest Expense Debt Excluding Amortization InterestExpenseDebtExcludingAmortization	4300000	USD
CY2019Q4	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	12600000	USD
	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	14500000	USD
CY2019Q4	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	400000	USD
CY2018Q4	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	300000	USD
	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	700000	USD
	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	700000	USD
CY2019Q4	us-gaap	Amortization Of Debt Discount Premium AmortizationOfDebtDiscountPremium	5200000	USD
CY2018Q4	us-gaap	Amortization Of Debt Discount Premium AmortizationOfDebtDiscountPremium	4900000	USD
	us-gaap	Amortization Of Debt Discount Premium AmortizationOfDebtDiscountPremium	10300000	USD
	us-gaap	Amortization Of Debt Discount Premium AmortizationOfDebtDiscountPremium	11400000	USD
CY2019Q4	us-gaap	Operating Lease Cost OperatingLeaseCost	3300000	USD
	us-gaap	Operating Lease Cost OperatingLeaseCost	6600000	USD
CY2019Q4	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P5Y4M24D
CY2019Q4	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.047
CY2019Q4	us-gaap	Operating Lease Payments OperatingLeasePayments	5800000	USD
	us-gaap	Operating Lease Payments OperatingLeasePayments	9200000	USD
CY2019Q4	viav	Operating Lease Right Of Use Asset Noncurrent OperatingLeaseRightOfUseAssetNoncurrent	44900000	USD
CY2019Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	44900000	USD
CY2019Q4	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	12400000	USD
CY2019Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	31400000	USD
CY2019Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	43800000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Remainder Of Fiscal Year LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear	6000000.0	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	12800000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	9900000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	5600000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Five LesseeOperatingLeaseLiabilityPaymentsDueYearFive	4200000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due After Year Five LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive	10800000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	49300000	USD
CY2019Q4	us-gaap	Product Warranty Accrual ProductWarrantyAccrual	9200000	USD
CY2018Q4	us-gaap	Product Warranty Accrual ProductWarrantyAccrual	9200000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	5500000	USD
CY2019Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	43800000	USD
CY2019Q2	us-gaap	Operating Leases Future Minimum Payments Due Current OperatingLeasesFutureMinimumPaymentsDueCurrent	11700000	USD
CY2019Q2	us-gaap	Operating Leases Future Minimum Payments Due In Two Years OperatingLeasesFutureMinimumPaymentsDueInTwoYears	10800000	USD
CY2019Q2	us-gaap	Operating Leases Future Minimum Payments Due In Three Years OperatingLeasesFutureMinimumPaymentsDueInThreeYears	7400000	USD
CY2019Q2	us-gaap	Operating Leases Future Minimum Payments Due In Four Years OperatingLeasesFutureMinimumPaymentsDueInFourYears	3900000	USD
CY2019Q2	us-gaap	Operating Leases Future Minimum Payments Due In Five Years OperatingLeasesFutureMinimumPaymentsDueInFiveYears	2500000	USD
CY2019Q2	us-gaap	Operating Leases Future Minimum Payments Due Thereafter OperatingLeasesFutureMinimumPaymentsDueThereafter	5300000	USD
CY2019Q2	us-gaap	Operating Leases Future Minimum Payments Due Future Minimum Sublease Rentals OperatingLeasesFutureMinimumPaymentsDueFutureMinimumSubleaseRentals	100000	USD
CY2019Q2	us-gaap	Operating Leases Future Minimum Payments Due OperatingLeasesFutureMinimumPaymentsDue	41500000	USD
CY2019Q4	us-gaap	Restructuring Reserve RestructuringReserve	5400000	USD
CY2019Q2	us-gaap	Restructuring Reserve RestructuringReserve	8800000	USD
CY2019Q4	us-gaap	Restructuring Charges RestructuringCharges	-900000	USD
	us-gaap	Restructuring Charges RestructuringCharges	-600000	USD
CY2018Q4	us-gaap	Restructuring Charges RestructuringCharges	300000	USD
	us-gaap	Restructuring Charges RestructuringCharges	15100000	USD
CY2019Q2	us-gaap	Restructuring Reserve RestructuringReserve	8800000	USD
	us-gaap	Restructuring Charges RestructuringCharges	-600000	USD
	us-gaap	Payments For Restructuring PaymentsForRestructuring	2300000	USD
	us-gaap	Restructuring Reserve Translation And Other Adjustment RestructuringReserveTranslationAndOtherAdjustment	-500000	USD
CY2019Q4	us-gaap	Restructuring Reserve RestructuringReserve	5400000	USD
CY2019Q4	us-gaap	Restructuring Charges RestructuringCharges	-900000	USD
CY2019Q4	us-gaap	Restructuring Reserve Current RestructuringReserveCurrent	5400000	USD
CY2019Q2	us-gaap	Restructuring Reserve Current RestructuringReserveCurrent	8600000	USD
CY2019Q2	us-gaap	Restructuring Reserve Noncurrent RestructuringReserveNoncurrent	200000	USD
CY2019Q4	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	9900000	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	18200000	USD
CY2018Q4	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	10900000	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	16600000	USD
CY2019Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	50700000	USD
CY2019Q2	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	50900000	USD
CY2019Q4	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued	4200000	USD
CY2019Q4	us-gaap	Stock Repurchased And Retired During Period Shares StockRepurchasedAndRetiredDuringPeriodShares	659000	shares
	us-gaap	Stock Repurchased And Retired During Period Shares StockRepurchasedAndRetiredDuringPeriodShares	763000	shares
CY2019Q4	us-gaap	Stock Repurchased And Retired During Period Value StockRepurchasedAndRetiredDuringPeriodValue	9200000	USD
	us-gaap	Stock Repurchased And Retired During Period Value StockRepurchasedAndRetiredDuringPeriodValue	10700000	USD
CY2019Q4	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	11300000	USD
CY2018Q4	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	9600000	USD
	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	21600000	USD
	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	17700000	USD
	us-gaap	Employee Service Share Based Compensation Allocation Of Recognized Period Costs Capitalized Amount EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount	1200000	USD
	us-gaap	Employee Service Share Based Compensation Allocation Of Recognized Period Costs Capitalized Amount EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount	1000000.0	USD
CY2019Q4	us-gaap	Defined Benefit Plan Expected Future Employer Contributions Current Fiscal Year DefinedBenefitPlanExpectedFutureEmployerContributionsCurrentFiscalYear	7900000	USD
	us-gaap	Defined Benefit Plan Contributions By Employer DefinedBenefitPlanContributionsByEmployer	2400000	USD
CY2019Q4	us-gaap	Guarantee Obligations Current Carrying Value GuaranteeObligationsCurrentCarryingValue	0	USD
CY2019Q4	us-gaap	Letters Of Credit Outstanding Amount LettersOfCreditOutstandingAmount	7400000	USD
	viav	Standard Product Warranty Term StandardProductWarrantyTerm	P3Y
CY2019Q3	us-gaap	Product Warranty Accrual ProductWarrantyAccrual	8800000	USD
CY2018Q3	us-gaap	Product Warranty Accrual ProductWarrantyAccrual	9000000.0	USD
CY2019Q2	us-gaap	Product Warranty Accrual ProductWarrantyAccrual	8700000	USD
CY2018Q2	us-gaap	Product Warranty Accrual ProductWarrantyAccrual	8200000	USD
CY2019Q4	us-gaap	Product Warranty Accrual Warranties Issued ProductWarrantyAccrualWarrantiesIssued	900000	USD
CY2018Q4	us-gaap	Product Warranty Accrual Warranties Issued ProductWarrantyAccrualWarrantiesIssued	1000000.0	USD
	us-gaap	Product Warranty Accrual Warranties Issued ProductWarrantyAccrualWarrantiesIssued	1300000	USD
	us-gaap	Product Warranty Accrual Warranties Issued ProductWarrantyAccrualWarrantiesIssued	1400000	USD
CY2019Q4	us-gaap	Product Warranty Accrual Payments ProductWarrantyAccrualPayments	800000	USD
CY2018Q4	us-gaap	Product Warranty Accrual Payments ProductWarrantyAccrualPayments	1500000	USD
	us-gaap	Product Warranty Accrual Payments ProductWarrantyAccrualPayments	1800000	USD
	us-gaap	Product Warranty Accrual Payments ProductWarrantyAccrualPayments	2700000	USD
CY2019Q4	us-gaap	Product Warranty Accrual Preexisting Increase Decrease ProductWarrantyAccrualPreexistingIncreaseDecrease	300000	USD
CY2018Q4	us-gaap	Product Warranty Accrual Preexisting Increase Decrease ProductWarrantyAccrualPreexistingIncreaseDecrease	700000	USD
	us-gaap	Product Warranty Accrual Preexisting Increase Decrease ProductWarrantyAccrualPreexistingIncreaseDecrease	1000000.0	USD
	us-gaap	Product Warranty Accrual Preexisting Increase Decrease ProductWarrantyAccrualPreexistingIncreaseDecrease	2300000	USD
CY2019Q4	us-gaap	Product Warranty Accrual ProductWarrantyAccrual	9200000	USD
CY2018Q4	us-gaap	Product Warranty Accrual ProductWarrantyAccrual	9200000	USD
CY2019Q4	viav	Operating Income Loss Margin OperatingIncomeLossMargin	0.143
CY2018Q4	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	306900000	USD
	us-gaap	Gross Profit GrossProfit	363900000	USD
	viav	Gross Profit Margin GrossProfitMargin	0.593
CY2018Q4	us-gaap	Gross Profit GrossProfit	178000000.0	USD
CY2018Q4	viav	Gross Profit Margin GrossProfitMargin	0.580
CY2018Q4	us-gaap	Operating Income Loss OperatingIncomeLoss	32900000	USD
CY2018Q4	viav	Operating Income Loss Margin OperatingIncomeLossMargin	0.107
CY2019Q4	us-gaap	Operating Income Loss OperatingIncomeLoss	45000000.0	USD
CY2018Q4	us-gaap	Operating Income Loss OperatingIncomeLoss	32900000	USD
	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	613500000	USD
	us-gaap	Operating Income Loss OperatingIncomeLoss	65700000	USD
	viav	Operating Income Loss Margin OperatingIncomeLossMargin	0.107
	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	575400000	USD
	us-gaap	Gross Profit GrossProfit	328400000	USD
	viav	Gross Profit Margin GrossProfitMargin	0.571
	us-gaap	Operating Income Loss OperatingIncomeLoss	31700000	USD
	viav	Operating Income Loss Margin OperatingIncomeLossMargin	0.055
	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	2	segment
CY2019Q4	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	313700000	USD
CY2019Q4	us-gaap	Gross Profit GrossProfit	189500000	USD
CY2019Q4	viav	Gross Profit Margin GrossProfitMargin	0.604
CY2019Q4	us-gaap	Operating Income Loss OperatingIncomeLoss	45000000.0	USD
	us-gaap	Operating Income Loss OperatingIncomeLoss	65700000	USD
	us-gaap	Operating Income Loss OperatingIncomeLoss	31700000	USD
CY2019Q4	viav	Number Of Geographic Regions In Which Entity Operates NumberOfGeographicRegionsInWhichEntityOperates	3	region
CY2019Q4	viav	Number Of Geographic Regions In Which Entity Operates NumberOfGeographicRegionsInWhichEntityOperates	3	region
CY2019Q4	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	313700000	USD
CY2018Q4	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	306900000	USD
	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	613500000	USD
	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	575400000	USD

Files In Submission

Name	View Source	Status
0000912093-20-000004-index-headers.html	Edgar Link	pending
0000912093-20-000004-index.html	Edgar Link	pending
0000912093-20-000004.txt	Edgar Link	pending
0000912093-20-000004-xbrl.zip	Edgar Link	pending
FilingSummary.xml	Edgar Link	unprocessable
Financial_Report.xlsx	Edgar Link	pending
MetaLinks.json	Edgar Link	pending
R1.htm	Edgar Link	pending
R10.htm	Edgar Link	pending
R11.htm	Edgar Link	pending
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R79.htm	Edgar Link	pending
R8.htm	Edgar Link	pending
R80.htm	Edgar Link	pending
R9.htm	Edgar Link	pending
report.css	Edgar Link	pending
Show.js	Edgar Link	pending
viav-20191228.xsd	Edgar Link	pending
viav-20191228_cal.xml	Edgar Link	unprocessable
viav-20191228_def.xml	Edgar Link	unprocessable
viav-20191228_lab.xml	Edgar Link	unprocessable
viav-20191228_pre.xml	Edgar Link	unprocessable
viavq2fy2010-q.htm	Edgar Link	pending
viavq2fy2010-q1ex311.htm	Edgar Link	pending
viavq2fy2010-q_htm.xml	Edgar Link	completed
viavq2fy2010q2ex312.htm	Edgar Link	pending
viavq2fy2010q3-ex321.htm	Edgar Link	pending
viavq2fy2010q4-ex101eq.htm	Edgar Link	pending
viavq2fy2010q4-ex322.htm	Edgar Link	pending

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$VIAV
VIAVI SOLUTIONS INC. Stock $viav

2019 Q4 Form 10-Q Financial Statement

#000091209320000004 Filed on February 06, 2020

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$VIAV VIAVI SOLUTIONS INC. Stock $viav

2019 Q4 Form 10-Q Financial Statement

#000091209320000004 Filed on February 06, 2020

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$VIAV
VIAVI SOLUTIONS INC. Stock $viav