$HOLX
HOLOGIC INC Stock $holx

$holx Overview Financials Valuation SEC Filings Company Website

2020 Q3 Form 10-K Financial Statement

#000085973720000039 Filed on November 17, 2020

Income Statement

Concept	2020 Q3	2019 Q3	2019 Q2
Revenue	$1.347B	$865.8M	$852.4M
YoY Change	55.58%	6.43%	3.45%
Cost Of Revenue	$415.1M	$412.3M	$235.8M
YoY Change	0.68%	5.07%	4.29%
Gross Profit	$931.8M	$249.5M	$444.8M
YoY Change	273.47%	-40.75%	2.02%
Gross Profit Margin	69.18%	28.82%	52.18%
Selling, General & Admin	$221.3M	$225.6M	$223.5M
YoY Change	-1.91%	-10.33%	-1.72%
% of Gross Profit	23.75%	90.42%	50.25%
Research & Development	$57.00M	$60.40M	$61.40M
YoY Change	-5.63%	14.61%	12.87%
% of Gross Profit	6.12%	24.21%	13.8%
Depreciation & Amortization	$94.30M	$113.4M	$113.3M
YoY Change	-16.84%	-4.79%	-5.98%
% of Gross Profit	10.12%	45.45%	25.47%
Operating Expenses	$288.5M	$297.9M	$299.5M
YoY Change	-3.16%	-6.67%	-1.12%
Operating Profit	$643.3M	-$48.40M	$145.3M
YoY Change	-1429.13%	-147.5%	9.17%
Interest Expense	-$24.70M	-$30.90M	$35.10M
YoY Change	-20.06%	-4.63%	1.74%
% of Operating Profit	-3.84%		24.16%
Other Income/Expense, Net	$9.000M	-$5.300M	$2.900M
YoY Change	-269.81%	-212.77%	-44.23%
Pretax Income	$617.1M	-$122.7M	$114.3M
YoY Change	-602.93%	-272.09%	8.55%
Income Tax	$123.5M	$800.0K	$20.40M
% Of Pretax Income	20.01%		17.85%
Net Earnings	$493.5M	-$123.5M	$93.90M
YoY Change	-499.6%	-344.55%	-16.83%
Net Earnings / Revenue	36.64%	-14.26%	11.02%
Basic Earnings Per Share			$0.35
Diluted Earnings Per Share	$1.88	-$0.46	$0.35
COMMON SHARES
Basic Shares Outstanding	259.0M shares	267.3M shares	268.9M shares
Diluted Shares Outstanding			270.8M shares

Balance Sheet

Concept	2020 Q3	2019 Q3	2019 Q2
SHORT-TERM ASSETS
Cash & Short-Term Investments	$701.0M	$602.0M	$428.0M
YoY Change	16.45%	-9.75%	-25.57%
Cash & Equivalents	$701.0M	$601.8M	$427.9M
Short-Term Investments
Other Short-Term Assets	$97.00M	$98.00M	$109.0M
YoY Change	-1.02%	5.38%	11.22%
Inventory	$395.1M	$444.9M	$467.9M
Prepaid Expenses	$58.50M	$62.80M	$66.00M
Receivables	$1.029B	$648.7M	$586.8M
Other Receivables	$0.00	$0.00	$0.00
Total Short-Term Assets	$2.222B	$1.793B	$1.592B
YoY Change	23.94%	4.06%	-0.23%
LONG-TERM ASSETS
Property, Plant & Equipment	$491.5M	$470.9M	$469.8M
YoY Change	4.37%	-1.53%	1.8%
Goodwill	$2.658B	$2.564B	$2.566B
YoY Change	3.67%	1.2%	2.93%
Intangibles	$1.308B	$1.460B	$1.788B
YoY Change	-10.43%	-39.14%	-26.99%
Long-Term Investments
YoY Change
Other Assets	$516.6M	$154.6M	$106.5M
YoY Change	234.15%	58.24%	15.64%
Total Long-Term Assets	$4.974B	$4.649B	$4.931B
YoY Change	6.98%	-15.59%	-10.29%
TOTAL ASSETS
Total Short-Term Assets	$2.222B	$1.793B	$1.592B
Total Long-Term Assets	$4.974B	$4.649B	$4.931B
Total Assets	$7.196B	$6.442B	$6.522B
YoY Change	11.7%	-10.91%	-8.02%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$178.8M	$186.5M	$161.5M
YoY Change	-4.13%	-2.97%	-3.47%
Accrued Expenses	$547.6M	$430.9M	$419.3M
YoY Change	27.08%	-1.19%	14.91%
Deferred Revenue
YoY Change
Short-Term Debt	$0.00	$0.00	$0.00
YoY Change
Long-Term Debt Due	$324.9M	$271.4M	$262.0M
YoY Change	19.71%	-54.74%	-50.11%
Total Short-Term Liabilities	$1.239B	$1.070B	$1.015B
YoY Change	15.81%	-23.71%	-17.81%
LONG-TERM LIABILITIES
Long-Term Debt	$2.714B	$2.784B	$2.792B
YoY Change	-2.5%	2.92%	2.56%
Other Long-Term Liabilities	$303.2M	$162.4M	$150.9M
YoY Change	86.7%	3.05%	0.87%
Total Long-Term Liabilities	$3.017B	$2.946B	$2.943B
YoY Change	2.41%	2.93%	2.47%
TOTAL LIABILITIES
Total Short-Term Liabilities	$1.239B	$1.070B	$1.015B
Total Long-Term Liabilities	$3.017B	$2.946B	$2.943B
Total Liabilities	$4.256B	$4.016B	$3.958B
YoY Change	5.98%	-5.83%	-3.63%
SHAREHOLDERS EQUITY
Retained Earnings	-$1.573B	-$2.689B	-$2.565B
YoY Change	-41.49%	7.81%	0.81%
Common Stock	$2.900M	$2.900M	$2.900M
YoY Change	0.0%	0.0%	0.0%
Preferred Stock
YoY Change
Treasury Stock (at cost)	$1.580B	$926.0M	$926.0M
YoY Change	70.58%	27.57%	45.28%
Treasury Stock Shares	37.61M shares	24.64M shares	23.52M shares
Shareholders Equity	$2.705B	$2.116B	$2.217B
YoY Change
Total Liabilities & Shareholders Equity	$7.196B	$6.442B	$6.522B
YoY Change	11.7%	-10.91%	-8.02%

Cashflow Statement

Concept	2020 Q3	2019 Q3	2019 Q2
OPERATING ACTIVITIES
Net Income	$493.5M	-$123.5M	$93.90M
YoY Change	-499.6%	-344.55%	-16.83%
Depreciation, Depletion And Amortization	$94.30M	$113.4M	$113.3M
YoY Change	-16.84%	-4.79%	-5.98%
Cash From Operating Activities	$442.0M	$247.7M	$163.7M
YoY Change	78.44%	6.58%	-30.04%
INVESTING ACTIVITIES
Capital Expenditures	-$58.30M	-$31.40M	-$30.30M
YoY Change	85.67%	-2.18%	22.67%
Acquisitions
YoY Change
Other Investing Activities	-$79.60M	-$49.40M	-$2.500M
YoY Change	61.13%	-34.48%	47.06%
Cash From Investing Activities	-$137.9M	-$80.80M	-$32.80M
YoY Change	70.67%	-24.84%	24.24%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	-350.9M	9.200M	-104.5M
YoY Change	-3914.13%	-132.97%	-56.73%
NET CHANGE
Cash From Operating Activities	442.0M	247.7M	163.7M
Cash From Investing Activities	-137.9M	-80.80M	-32.80M
Cash From Financing Activities	-350.9M	9.200M	-104.5M
Net Change In Cash	-46.80M	176.1M	26.40M
YoY Change	-126.58%	81.55%	-177.88%
FREE CASH FLOW
Cash From Operating Activities	$442.0M	$247.7M	$163.7M
Capital Expenditures	-$58.30M	-$31.40M	-$30.30M
Free Cash Flow	$500.3M	$279.1M	$194.0M
YoY Change	79.25%	5.52%	-25.01%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
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CY2020	dei	Entity Central Index Key EntityCentralIndexKey	0000859737
CY2020	dei	Amendment Flag AmendmentFlag	false
CY2020	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2020	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--09-26
CY2020	holx	Warranty Term For Products WarrantyTermForProducts	P1Y
CY2020Q3	us-gaap	Revenue Remaining Performance Obligation Expected Timing Of Satisfaction Period1 RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1	P1Y
CY2020Q3	us-gaap	Revenue Remaining Performance Obligation Expected Timing Of Satisfaction Period1 RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1	P1Y
CY2020Q3	us-gaap	Revenue Remaining Performance Obligation Expected Timing Of Satisfaction Period1 RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1	P1Y
CY2020Q3	us-gaap	Revenue Remaining Performance Obligation Expected Timing Of Satisfaction Period1 RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1	P1Y
CY2020Q3	us-gaap	Revenue Remaining Performance Obligation Expected Timing Of Satisfaction Period1 RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1
CY2019Q3	us-gaap	Operating Lease Liability Statement Of Financial Position Extensible List OperatingLeaseLiabilityStatementOfFinancialPositionExtensibleList	us-gaap:LiabilitiesAbstract
CY2019Q3	us-gaap	Finance Lease Liability Statement Of Financial Position Extensible List FinanceLeaseLiabilityStatementOfFinancialPositionExtensibleList	us-gaap:LiabilitiesAbstract
CY2020	dei	Local Phone Number LocalPhoneNumber	263-2900
CY2020	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	01752
CY2020	dei	City Area Code CityAreaCode	508
CY2020Q3	us-gaap	Operating Lease Right Of Use Asset Statement Of Financial Position Extensible List OperatingLeaseRightOfUseAssetStatementOfFinancialPositionExtensibleList	us-gaap:OtherAssets
CY2020Q3	us-gaap	Operating Lease Liability Current Statement Of Financial Position Extensible List OperatingLeaseLiabilityCurrentStatementOfFinancialPositionExtensibleList	us-gaap:AccountsPayableAndAccruedLiabilitiesCurrent
CY2020Q3	us-gaap	Operating Lease Liability Noncurrent Statement Of Financial Position Extensible List OperatingLeaseLiabilityNoncurrentStatementOfFinancialPositionExtensibleList	us-gaap:OtherLiabilitiesNoncurrent
CY2013Q4	holx	Percentage Of Award Vested Upon Meeting Defined Market Based Criteria PercentageOfAwardVestedUponMeetingDefinedMarketBasedCriteria	0.3333
CY2019Q3	us-gaap	Operating Lease Liability Current Statement Of Financial Position Extensible List OperatingLeaseLiabilityCurrentStatementOfFinancialPositionExtensibleList	us-gaap:AccountsPayableAndAccruedLiabilitiesCurrent
CY2019Q3	us-gaap	Operating Lease Liability Noncurrent Statement Of Financial Position Extensible List OperatingLeaseLiabilityNoncurrentStatementOfFinancialPositionExtensibleList	us-gaap:OtherLiabilitiesNoncurrent
CY2020	dei	Document Type DocumentType	10-K
CY2020	dei	Document Annual Report DocumentAnnualReport	true
CY2020	dei	Document Period End Date DocumentPeriodEndDate	2020-09-26
CY2020	dei	Document Transition Report DocumentTransitionReport	false
CY2020	dei	Entity File Number EntityFileNumber	1-36214
CY2020	dei	Entity Registrant Name EntityRegistrantName	HOLOGIC, INC
CY2020	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	DE
CY2020	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	04-2902449
CY2020	dei	Entity Address Address Line1 EntityAddressAddressLine1	250 Campus Drive
CY2020	dei	Entity Address City Or Town EntityAddressCityOrTown	Marlborough
CY2020	dei	Entity Address State Or Province EntityAddressStateOrProvince	MA
CY2020	dei	Security12b Title Security12bTitle	Common Stock, $.01 par value
CY2020	dei	Trading Symbol TradingSymbol	HOLX
CY2020	dei	Security Exchange Name SecurityExchangeName	NASDAQ
CY2020	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	Yes
CY2020	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2020	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2020	dei	Entity Interactive Data Current EntityInteractiveDataCurrent	Yes
CY2020	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
CY2020	dei	Entity Small Business EntitySmallBusiness	false
CY2020	dei	Entity Emerging Growth Company EntityEmergingGrowthCompany	false
CY2020	dei	Icfr Auditor Attestation Flag IcfrAuditorAttestationFlag	true
CY2020	dei	Entity Shell Company EntityShellCompany	false
CY2020Q1	dei	Entity Public Float EntityPublicFloat	8530248376	USD
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CY2020	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	1103100000	USD
CY2019	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-220400000	USD
CY2018	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-120600000	USD
CY2020	us-gaap	Noncontrolling Interest In Net Income Loss Other Noncontrolling Interests Redeemable NoncontrollingInterestInNetIncomeLossOtherNoncontrollingInterestsRedeemable	-4700000	USD
CY2019	us-gaap	Noncontrolling Interest In Net Income Loss Other Noncontrolling Interests Redeemable NoncontrollingInterestInNetIncomeLossOtherNoncontrollingInterestsRedeemable	0	USD
CY2018	us-gaap	Noncontrolling Interest In Net Income Loss Other Noncontrolling Interests Redeemable NoncontrollingInterestInNetIncomeLossOtherNoncontrollingInterestsRedeemable	0	USD
CY2020	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Noncontrolling Interest OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToNoncontrollingInterest	4700000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Noncontrolling Interest OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToNoncontrollingInterest	0	USD
CY2018	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Noncontrolling Interest OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToNoncontrollingInterest	0	USD
CY2020	holx	Comprehensive Income ComprehensiveIncome	1107800000	USD
CY2019	holx	Comprehensive Income ComprehensiveIncome	-220400000	USD
CY2018	holx	Comprehensive Income ComprehensiveIncome	-120600000	USD
CY2020Q3	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	701000000.0	USD
CY2019Q3	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	601800000	USD
CY2020Q3	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	31600000	USD
CY2019Q3	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	17800000	USD
CY2020Q3	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	1028900000	USD
CY2019Q3	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	648700000	USD
CY2020Q3	us-gaap	Inventory Net InventoryNet	395100000	USD
CY2019Q3	us-gaap	Inventory Net InventoryNet	444900000	USD
CY2020Q3	us-gaap	Prepaid Taxes PrepaidTaxes	38800000	USD
CY2019Q3	us-gaap	Prepaid Taxes PrepaidTaxes	34900000	USD
CY2020Q3	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	58500000	USD
CY2019Q3	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	62800000	USD
CY2020Q3	us-gaap	Assets Current AssetsCurrent	2222300000	USD
CY2020Q3	us-gaap	Deferred Revenue Current DeferredRevenueCurrent	186100000	USD
CY2019Q3	us-gaap	Assets Current AssetsCurrent	1793100000	USD
CY2020Q3	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	491500000	USD
CY2019Q3	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	470900000	USD
CY2020Q3	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	1307500000	USD
CY2019Q3	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	1459800000	USD
CY2020Q3	us-gaap	Goodwill Goodwill	2657900000	USD
CY2019Q3	us-gaap	Goodwill Goodwill	2563700000	USD
CY2020Q3	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	516600000	USD
CY2019Q3	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	154600000	USD
CY2020Q3	us-gaap	Assets Assets	7195800000	USD
CY2019Q3	us-gaap	Assets Assets	6442100000	USD
CY2020Q3	us-gaap	Long Term Debt Current LongTermDebtCurrent	324900000	USD
CY2019Q3	us-gaap	Long Term Debt Current LongTermDebtCurrent	271400000	USD
CY2020Q3	us-gaap	Accounts Payable Current AccountsPayableCurrent	178800000	USD
CY2019Q3	us-gaap	Accounts Payable Current AccountsPayableCurrent	186500000	USD
CY2020Q3	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	547600000	USD
CY2019Q3	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	430900000	USD
CY2019Q3	us-gaap	Deferred Revenue Current DeferredRevenueCurrent	179500000	USD
CY2020Q3	us-gaap	Capital Lease Obligations Current CapitalLeaseObligationsCurrent	1900000	USD
CY2019Q3	us-gaap	Capital Lease Obligations Current CapitalLeaseObligationsCurrent	1800000	USD
CY2020Q3	us-gaap	Liabilities Current LiabilitiesCurrent	1239300000	USD
CY2019Q3	us-gaap	Liabilities Current LiabilitiesCurrent	1070100000	USD
CY2020Q3	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	2713900000	USD
CY2019Q3	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	2783600000	USD
CY2020Q3	us-gaap	Capital Lease Obligations Noncurrent CapitalLeaseObligationsNoncurrent	17400000	USD
CY2019Q3	us-gaap	Capital Lease Obligations Noncurrent CapitalLeaseObligationsNoncurrent	19200000	USD
CY2020Q3	us-gaap	Deferred Income Tax Liabilities Net DeferredIncomeTaxLiabilitiesNet	201800000	USD
CY2019Q3	us-gaap	Deferred Income Tax Liabilities Net DeferredIncomeTaxLiabilitiesNet	275300000	USD
CY2020Q3	us-gaap	Deferred Revenue Noncurrent DeferredRevenueNoncurrent	12900000	USD
CY2019Q3	us-gaap	Deferred Revenue Noncurrent DeferredRevenueNoncurrent	15800000	USD
CY2020Q3	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	303200000	USD
CY2019Q3	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	162400000	USD
CY2020Q3	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2019Q3	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2020Q3	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0.01
CY2019Q3	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0.01
CY2020Q3	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	1623000	shares
CY2019Q3	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	1623000	shares
CY2020Q3	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0	shares
CY2019Q3	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0	shares
CY2020Q3	us-gaap	Preferred Stock Value PreferredStockValue	0	USD
CY2019Q3	us-gaap	Preferred Stock Value PreferredStockValue	0	USD
CY2019Q3	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.01
CY2020Q3	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.01
CY2019Q3	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	750000000	shares
CY2020Q3	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	750000000	shares
CY2020Q3	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	295107000	shares
CY2019Q3	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	292323000	shares
CY2020Q3	us-gaap	Common Stock Value CommonStockValue	2900000	USD
CY2019Q3	us-gaap	Common Stock Value CommonStockValue	2900000	USD
CY2020Q3	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	5904800000	USD
CY2019Q3	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	5769800000	USD
CY2020Q3	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	-1573200000	USD
CY2019Q3	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	-2688700000	USD
CY2020Q3	us-gaap	Treasury Stock Shares TreasuryStockShares	37609000	shares
CY2019Q3	us-gaap	Treasury Stock Shares TreasuryStockShares	24639000	shares
CY2020Q3	us-gaap	Treasury Stock Value TreasuryStockValue	1579600000	USD
CY2019Q3	us-gaap	Treasury Stock Value TreasuryStockValue	926000000.0	USD
CY2020Q3	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-49700000	USD
CY2019Q3	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-42300000	USD
CY2020Q3	us-gaap	Stockholders Equity StockholdersEquity	2705200000	USD
CY2019Q3	us-gaap	Stockholders Equity StockholdersEquity	2115700000	USD
CY2020Q3	us-gaap	Minority Interest MinorityInterest	2100000	USD
CY2019Q3	us-gaap	Minority Interest MinorityInterest	0	USD
CY2020Q3	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	2707300000	USD
CY2019Q3	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	2115700000	USD
CY2020Q3	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	7195800000	USD
CY2019Q3	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	6442100000	USD
CY2017Q3	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	2784700000	USD
CY2018	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	17300000	USD
CY2018	us-gaap	Restricted Stock Value Shares Issued Net Of Tax Withholdings RestrictedStockValueSharesIssuedNetOfTaxWithholdings	-16700000	USD
CY2018	us-gaap	Stock Issued During Period Value Employee Stock Purchase Plan StockIssuedDuringPeriodValueEmployeeStockPurchasePlan	15600000	USD
CY2018	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	65000000.0	USD
CY2018	us-gaap	Adjustments To Additional Paid In Capital Equity Component Of Convertible Debt AdjustmentsToAdditionalPaidInCapitalEquityComponentOfConvertibleDebt	-40700000	USD
CY2018	us-gaap	Profit Loss ProfitLoss	-111300000	USD
CY2018	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent	-8100000	USD
CY2018	us-gaap	Other Comprehensive Income Defined Benefit Plans Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPortionAttributableToParent	-500000	USD
CY2018	us-gaap	Treasury Stock Value Acquired Par Value Method TreasuryStockValueAcquiredParValueMethod	275800000	USD
CY2018	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax	-5700000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesNetOfTax	-3600000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	-400000	USD
CY2018Q3	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	2428800000	USD
CY2019	holx	Accountingstandardtransitionadjustment Asc606 AccountingstandardtransitionadjustmentASC606	-6400000	USD
CY2019	holx	Accountingstandardtransitionadjustment Asu201616 AccountingstandardtransitionadjustmentASU201616	-2500000	USD
CY2019	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	32800000	USD
CY2019	us-gaap	Restricted Stock Value Shares Issued Net Of Tax Withholdings RestrictedStockValueSharesIssuedNetOfTaxWithholdings	-12800000	USD
CY2019	us-gaap	Stock Issued During Period Value Employee Stock Purchase Plan StockIssuedDuringPeriodValueEmployeeStockPurchasePlan	16500000	USD
CY2019	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	62000000.0	USD
CY2019	us-gaap	Profit Loss ProfitLoss	-203600000	USD
CY2019	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent	-14800000	USD
CY2019	us-gaap	Other Comprehensive Income Defined Benefit Plans Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPortionAttributableToParent	600000	USD
CY2019	us-gaap	Treasury Stock Value Acquired Par Value Method TreasuryStockValueAcquiredParValueMethod	200100000	USD
CY2019	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax	-8000000.0	USD
CY2019	us-gaap	Unrealized Gain Loss On Interest Rate Cash Flow Hedges Pretax Accumulated Other Comprehensive Income Loss UnrealizedGainLossOnInterestRateCashFlowHedgesPretaxAccumulatedOtherComprehensiveIncomeLoss	3500000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesNetOfTax	-3100000	USD
CY2019Q3	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	2115700000	USD
CY2020	us-gaap	Noncontrolling Interest Increase From Business Combination NoncontrollingInterestIncreaseFromBusinessCombination	8600000	USD
CY2020	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	48300000	USD
CY2020	us-gaap	Restricted Stock Value Shares Issued Net Of Tax Withholdings RestrictedStockValueSharesIssuedNetOfTaxWithholdings	-14200000	USD
CY2020	us-gaap	Stock Issued During Period Value Employee Stock Purchase Plan StockIssuedDuringPeriodValueEmployeeStockPurchasePlan	17600000	USD
CY2020	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	83300000	USD
CY2020	us-gaap	Profit Loss ProfitLoss	1110500000	USD
CY2020	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent	18500000	USD
CY2020	us-gaap	Other Comprehensive Income Defined Benefit Plans Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPortionAttributableToParent	100000	USD
CY2020	us-gaap	Treasury Stock Value Acquired Par Value Method TreasuryStockValueAcquiredParValueMethod	448600000	USD
CY2020	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax	-500000	USD
CY2020	us-gaap	Unrealized Gain Loss On Interest Rate Cash Flow Hedges Pretax Accumulated Other Comprehensive Income Loss UnrealizedGainLossOnInterestRateCashFlowHedgesPretaxAccumulatedOtherComprehensiveIncomeLoss	-27600000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesNetOfTax	-2300000	USD
CY2020	us-gaap	Payments To Minority Shareholders PaymentsToMinorityShareholders	1800000	USD
CY2020Q3	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	2707300000	USD
CY2020	us-gaap	Profit Loss ProfitLoss	1110500000	USD
CY2019	us-gaap	Profit Loss ProfitLoss	-203600000	USD
CY2018	us-gaap	Profit Loss ProfitLoss	-111300000	USD
CY2020	us-gaap	Depreciation Depreciation	83100000	USD
CY2019	us-gaap	Depreciation Depreciation	92500000	USD
CY2018	us-gaap	Depreciation Depreciation	101600000	USD
CY2020	us-gaap	Adjustment For Amortization AdjustmentForAmortization	292900000	USD
CY2019	us-gaap	Adjustment For Amortization AdjustmentForAmortization	370600000	USD
CY2018	us-gaap	Adjustment For Amortization AdjustmentForAmortization	378700000	USD
CY2020	us-gaap	Share Based Compensation ShareBasedCompensation	83300000	USD
CY2019	us-gaap	Share Based Compensation ShareBasedCompensation	62000000.0	USD
CY2018	us-gaap	Share Based Compensation ShareBasedCompensation	65000000.0	USD
CY2020	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-94400000	USD
CY2019	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-235700000	USD
CY2018	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-477300000	USD
CY2020	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0	USD
CY2019	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0	USD
CY2018	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	685700000	USD
CY2020	holx	Impairmentofintangibleassetsandequipment Impairmentofintangibleassetsandequipment	30200000	USD
CY2019	holx	Impairmentofintangibleassetsandequipment Impairmentofintangibleassetsandequipment	685400000	USD
CY2018	holx	Impairmentofintangibleassetsandequipment Impairmentofintangibleassetsandequipment	46000000.0	USD
CY2020	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	0	USD
CY2019	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	-800000	USD
CY2018	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	-45900000	USD
CY2020	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-27300000	USD
CY2019	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-33800000	USD
CY2018	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-24800000	USD
CY2020	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	427100000	USD
CY2019	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	76500000	USD
CY2018	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	38200000	USD
CY2020	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	25300000	USD
CY2019	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	63000000.0	USD
CY2018	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	50600000	USD
CY2020	us-gaap	Increase Decrease In Prepaid Taxes IncreaseDecreaseInPrepaidTaxes	3800000	USD
CY2019	us-gaap	Increase Decrease In Prepaid Taxes IncreaseDecreaseInPrepaidTaxes	3200000	USD
CY2018	us-gaap	Increase Decrease In Prepaid Taxes IncreaseDecreaseInPrepaidTaxes	9400000	USD
CY2020	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	286200000	USD
CY2019	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	6000000.0	USD
CY2018	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	4200000	USD
CY2020	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	-4900000	USD
CY2019	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	-5500000	USD
CY2018	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	23900000	USD
CY2020	us-gaap	Increase Decrease In Accrued Liabilities IncreaseDecreaseInAccruedLiabilities	96000000.0	USD
CY2019	us-gaap	Increase Decrease In Accrued Liabilities IncreaseDecreaseInAccruedLiabilities	-16500000	USD
CY2018	us-gaap	Increase Decrease In Accrued Liabilities IncreaseDecreaseInAccruedLiabilities	53800000	USD
CY2020	us-gaap	Increase Decrease In Deferred Revenue IncreaseDecreaseInDeferredRevenue	15000000.0	USD
CY2019	us-gaap	Increase Decrease In Deferred Revenue IncreaseDecreaseInDeferredRevenue	14400000	USD
CY2018	us-gaap	Increase Decrease In Deferred Revenue IncreaseDecreaseInDeferredRevenue	-1500000	USD
CY2020	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	896600000	USD
CY2019	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	649500000	USD
CY2018	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	732900000	USD
CY2020	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	119400000	USD
CY2019	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	110600000	USD
CY2018	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	76500000	USD
CY2020	us-gaap	Proceeds From Divestiture Of Businesses ProceedsFromDivestitureOfBusinesses	139300000	USD
CY2019	us-gaap	Proceeds From Divestiture Of Businesses ProceedsFromDivestitureOfBusinesses	0	USD
CY2018	us-gaap	Proceeds From Divestiture Of Businesses ProceedsFromDivestitureOfBusinesses	0	USD
CY2020	us-gaap	Payments To Acquire Equity Method Investments PaymentsToAcquireEquityMethodInvestments	0	USD
CY2019	us-gaap	Payments To Acquire Equity Method Investments PaymentsToAcquireEquityMethodInvestments	18200000	USD
CY2018	us-gaap	Payments To Acquire Equity Method Investments PaymentsToAcquireEquityMethodInvestments	0	USD
CY2020	holx	Funding Of Loans To Ssi FundingOfLoansToSSI	0	USD
CY2019	holx	Funding Of Loans To Ssi FundingOfLoansToSSI	28400000	USD
CY2018	holx	Funding Of Loans To Ssi FundingOfLoansToSSI	0	USD
CY2020	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	98300000	USD
CY2019	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	57000000.0	USD
CY2018	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	58400000	USD
CY2020	holx	Payments To Manufacture Equipment Under Customer Usage Agreements PaymentsToManufactureEquipmentUnderCustomerUsageAgreements	58100000	USD
CY2019	holx	Payments To Manufacture Equipment Under Customer Usage Agreements PaymentsToManufactureEquipmentUnderCustomerUsageAgreements	52100000	USD
CY2018	holx	Payments To Manufacture Equipment Under Customer Usage Agreements PaymentsToManufactureEquipmentUnderCustomerUsageAgreements	47200000	USD
CY2020	holx	Purchaseofcostmethodinvestment Purchaseofcostmethodinvestment	0	USD
CY2019	holx	Purchaseofcostmethodinvestment Purchaseofcostmethodinvestment	3000000.0	USD
CY2018	holx	Purchaseofcostmethodinvestment Purchaseofcostmethodinvestment	6000000.0	USD
CY2020	holx	Purchaseofinsurancecontracts Purchaseofinsurancecontracts	2400000	USD
CY2019	holx	Purchaseofinsurancecontracts Purchaseofinsurancecontracts	0	USD
CY2018	holx	Purchaseofinsurancecontracts Purchaseofinsurancecontracts	0	USD
CY2020	us-gaap	Payments To Acquire Intangible Assets PaymentsToAcquireIntangibleAssets	0	USD
CY2019	us-gaap	Payments To Acquire Intangible Assets PaymentsToAcquireIntangibleAssets	4500000	USD
CY2018	us-gaap	Payments To Acquire Intangible Assets PaymentsToAcquireIntangibleAssets	0	USD
CY2020	us-gaap	Increase Decrease In Other Noncurrent Assets IncreaseDecreaseInOtherNoncurrentAssets	2700000	USD
CY2019	us-gaap	Increase Decrease In Other Noncurrent Assets IncreaseDecreaseInOtherNoncurrentAssets	6900000	USD
CY2018	us-gaap	Increase Decrease In Other Noncurrent Assets IncreaseDecreaseInOtherNoncurrentAssets	7100000	USD
CY2020	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-141600000	USD
CY2019	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-280700000	USD
CY2018	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-195200000	USD
CY2020	us-gaap	Proceeds From Repayments Of Other Long Term Debt ProceedsFromRepaymentsOfOtherLongTermDebt	0	USD
CY2019	us-gaap	Proceeds From Repayments Of Other Long Term Debt ProceedsFromRepaymentsOfOtherLongTermDebt	1500000000.0	USD
CY2018	us-gaap	Proceeds From Repayments Of Other Long Term Debt ProceedsFromRepaymentsOfOtherLongTermDebt	1500000000.0	USD
CY2020	us-gaap	Repayments Of Other Long Term Debt RepaymentsOfOtherLongTermDebt	37500000	USD
CY2019	us-gaap	Repayments Of Other Long Term Debt RepaymentsOfOtherLongTermDebt	1462500000	USD
CY2018	us-gaap	Repayments Of Other Long Term Debt RepaymentsOfOtherLongTermDebt	1359400000	USD
CY2020	holx	Proceedsfrom Senior Notes ProceedsfromSeniorNotes	0	USD
CY2019	holx	Proceedsfrom Senior Notes ProceedsfromSeniorNotes	0	USD
CY2018	holx	Proceedsfrom Senior Notes ProceedsfromSeniorNotes	1350000000.0	USD
CY2020	holx	Repaymentof Senior Notes RepaymentofSeniorNotes	0	USD
CY2019	holx	Repaymentof Senior Notes RepaymentofSeniorNotes	0	USD
CY2018	holx	Repaymentof Senior Notes RepaymentofSeniorNotes	1037700000	USD
CY2020	us-gaap	Repayments Of Convertible Debt RepaymentsOfConvertibleDebt	0	USD
CY2019	us-gaap	Repayments Of Convertible Debt RepaymentsOfConvertibleDebt	0	USD
CY2018	us-gaap	Repayments Of Convertible Debt RepaymentsOfConvertibleDebt	546200000	USD
CY2020	holx	Repaymentofacquireddebt Repaymentofacquireddebt	8300000	USD
CY2019	holx	Repaymentofacquireddebt Repaymentofacquireddebt	2500000	USD
CY2018	holx	Repaymentofacquireddebt Repaymentofacquireddebt	3300000	USD
CY2020	us-gaap	Proceeds From Lines Of Credit ProceedsFromLinesOfCredit	750000000.0	USD
CY2019	us-gaap	Proceeds From Lines Of Credit ProceedsFromLinesOfCredit	480000000.0	USD
CY2018	us-gaap	Proceeds From Lines Of Credit ProceedsFromLinesOfCredit	1150000000.0	USD
CY2020	us-gaap	Repayments Of Lines Of Credit RepaymentsOfLinesOfCredit	500000000.0	USD
CY2019	us-gaap	Repayments Of Lines Of Credit RepaymentsOfLinesOfCredit	780000000.0	USD
CY2018	us-gaap	Repayments Of Lines Of Credit RepaymentsOfLinesOfCredit	1195000000.0	USD
CY2020	us-gaap	Proceeds From Accounts Receivable Securitization ProceedsFromAccountsReceivableSecuritization	16000000.0	USD
CY2019	us-gaap	Proceeds From Accounts Receivable Securitization ProceedsFromAccountsReceivableSecuritization	43000000.0	USD
CY2018	us-gaap	Proceeds From Accounts Receivable Securitization ProceedsFromAccountsReceivableSecuritization	34000000.0	USD
CY2020	us-gaap	Repayments Of Accounts Receivable Securitization RepaymentsOfAccountsReceivableSecuritization	250000000.0	USD
CY2019	us-gaap	Repayments Of Accounts Receivable Securitization RepaymentsOfAccountsReceivableSecuritization	34000000.0	USD
CY2018	us-gaap	Repayments Of Accounts Receivable Securitization RepaymentsOfAccountsReceivableSecuritization	9000000.0	USD
CY2020	us-gaap	Payments To Minority Shareholders PaymentsToMinorityShareholders	1800000	USD
CY2019	us-gaap	Payments To Minority Shareholders PaymentsToMinorityShareholders	0	USD
CY2018	us-gaap	Payments To Minority Shareholders PaymentsToMinorityShareholders	0	USD
CY2020	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	653600000	USD
CY2019	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	200100000	USD
CY2018	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	275800000	USD
CY2020	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	0	USD
CY2019	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	2700000	USD
CY2018	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	23500000	USD
CY2020	us-gaap	Payment For Contingent Consideration Liability Financing Activities PaymentForContingentConsiderationLiabilityFinancingActivities	24300000	USD
CY2019	us-gaap	Payment For Contingent Consideration Liability Financing Activities PaymentForContingentConsiderationLiabilityFinancingActivities	6500000	USD
CY2018	us-gaap	Payment For Contingent Consideration Liability Financing Activities PaymentForContingentConsiderationLiabilityFinancingActivities	0	USD
CY2020	holx	Interest Rate Cap Agreements Aggregate Premium Payable InterestRateCapAgreementsAggregatePremiumPayable	0	USD
CY2019	holx	Interest Rate Cap Agreements Aggregate Premium Payable InterestRateCapAgreementsAggregatePremiumPayable	1500000	USD
CY2018	holx	Interest Rate Cap Agreements Aggregate Premium Payable InterestRateCapAgreementsAggregatePremiumPayable	3700000	USD
CY2020	us-gaap	Proceeds From Issuance Of Shares Under Incentive And Share Based Compensation Plans Including Stock Options ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions	65600000	USD
CY2019	us-gaap	Proceeds From Issuance Of Shares Under Incentive And Share Based Compensation Plans Including Stock Options ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions	49800000	USD
CY2018	us-gaap	Proceeds From Issuance Of Shares Under Incentive And Share Based Compensation Plans Including Stock Options ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions	33200000	USD
CY2020	holx	Payment For Tax Withholding Related To Vested And Released Restricted Stock Units PaymentForTaxWithholdingRelatedToVestedAndReleasedRestrictedStockUnits	14300000	USD
CY2019	holx	Payment For Tax Withholding Related To Vested And Released Restricted Stock Units PaymentForTaxWithholdingRelatedToVestedAndReleasedRestrictedStockUnits	12800000	USD
CY2018	holx	Payment For Tax Withholding Related To Vested And Released Restricted Stock Units PaymentForTaxWithholdingRelatedToVestedAndReleasedRestrictedStockUnits	16700000	USD
CY2020	us-gaap	Repayments Of Long Term Capital Lease Obligations RepaymentsOfLongTermCapitalLeaseObligations	1700000	USD
CY2019	us-gaap	Repayments Of Long Term Capital Lease Obligations RepaymentsOfLongTermCapitalLeaseObligations	1700000	USD
CY2018	us-gaap	Repayments Of Long Term Capital Lease Obligations RepaymentsOfLongTermCapitalLeaseObligations	1700000	USD
CY2020	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-659900000	USD
CY2019	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-431500000	USD
CY2018	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-404800000	USD
CY2020	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	4100000	USD
CY2019	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	-2200000	USD
CY2018	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	-6800000	USD
CY2020	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	99200000	USD
CY2019	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-64900000	USD
CY2018	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	126100000	USD
CY2019Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	601800000	USD
CY2018Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	666700000	USD
CY2017Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	540600000	USD
CY2020Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	701000000.0	USD
CY2019Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	601800000	USD
CY2018Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	666700000	USD
CY2017Q1	us-gaap	Number Of Operating Segments NumberOfOperatingSegments	4	Segment
CY2020	us-gaap	Proceeds From Lines Of Credit ProceedsFromLinesOfCredit	750000000.0	USD
CY2020	us-gaap	Repayments Of Accounts Receivable Securitization RepaymentsOfAccountsReceivableSecuritization	250000000.0	USD
CY2020	us-gaap	Repayments Of Lines Of Credit RepaymentsOfLinesOfCredit	500000000.0	USD
CY2020	us-gaap	Proceeds From Lines Of Credit ProceedsFromLinesOfCredit	750000000.0	USD
CY2020Q3	holx	Unused Credit Facility UnusedCreditFacility	1250000000	USD
CY2020Q3	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	701000000.0	USD
CY2020	us-gaap	Use Of Estimates UseOfEstimates	<div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%">Management’s Estimates and Uncertainties</span></div><div style="margin-top:5pt;text-indent:24.75pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The preparation of financial statements in conformity with U.S. generally accepted accounting principles ("GAAP") requires management to make significant estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting periods. Significant estimates and assumptions by management affect the Company’s revenue recognition for multiple performance obligation arrangements, valuations, purchase price allocations and contingent consideration related to business combinations, expected future cash flows including growth rates, discount rates, terminal values and other assumptions and estimates used to evaluate the recoverability of long-lived assets and goodwill, estimated fair values of intangible assets and goodwill, amortization methods and periods, warranty reserves, certain accrued expenses, restructuring and other related charges, contingent liabilities, tax reserves, deferred tax rates and recoverability of the Company’s net deferred tax assets and related valuation allowances.</span></div><div style="margin-top:9pt;text-indent:24.75pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Although the Company regularly assesses these estimates, actual results could differ materially from these estimates. Changes in estimates are recorded in the period in which they become known. The Company bases its estimates on historical experience and various other assumptions that it believes to be reasonable under the circumstances.</span></div><div style="margin-top:9pt;text-indent:24.75pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The Company is subject to a number of risks similar to those of other companies of similar size in its industry, including dependence on third-party reimbursements to support the markets of the Company’s products, early stage of development of certain products, rapid technological changes, recoverability of long-lived assets (including intangible assets and goodwill), competition, stability of world financial markets, ability to obtain regulatory approvals, changes in the regulatory environment, limited number of suppliers, customer concentration, integration of acquisitions, substantial indebtedness, government regulations, management of international activities, protection of proprietary rights, patent and other litigation, dependence on contract manufacturers and dependence on key individuals.</span></div>
CY2020	holx	Cash Equivalents Maturity Period CashEquivalentsMaturityPeriod	three months or less
CY2020	us-gaap	Concentration Risk Credit Risk ConcentrationRiskCreditRisk	<div style="margin-top:14pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%">Concentrations of Credit Risk</span></div><div style="margin-top:5pt;text-indent:24.75pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Financial instruments that subject the Company to credit risk primarily consist of cash and cash equivalents, cost-method investments and trade accounts receivable. The Company invests its cash and cash equivalents with high credit quality financial institutions.</span></div><div style="margin-top:9pt;text-indent:24.75pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The Company’s customers are principally located in the United States, Europe and Asia. The Company performs ongoing credit evaluations of the financial condition of its customers and generally does not require collateral. Although the Company is directly affected by the overall financial condition of the healthcare industry, as well as global economic conditions, management does not believe significant credit risk exists as of September 26, 2020. The Company generally has not experienced any material losses related to receivables from individual customers or groups of customers in the healthcare industry. The Company maintains an allowance for doubtful accounts based on accounts past due and historical collection experience.</span></div>There was one customer with a balance greater than 10% of accounts receivable as of September 26, 2020, at 11.9%. There were no customers with a balance greater than 10% of accounts receivable as of September 28, 2019. There were no customers that represented greater than 10% of consolidated revenues for fiscal years 2020, 2019 and 2018
CY2020Q3	holx	Number Of Customers With Balance Greater Than Specified Percentage NumberOfCustomersWithBalanceGreaterThanSpecifiedPercentage	1	Customer
CY2019Q3	holx	Number Of Customers With Balance Greater Than Specified Percentage NumberOfCustomersWithBalanceGreaterThanSpecifiedPercentage	0	Customer
CY2020	us-gaap	Income Taxes Paid IncomeTaxesPaid	265900000	USD
CY2019	us-gaap	Income Taxes Paid IncomeTaxesPaid	180600000	USD
CY2018	us-gaap	Income Taxes Paid IncomeTaxesPaid	178200000	USD
CY2020	us-gaap	Interest Paid InterestPaid	109500000	USD
CY2019	us-gaap	Interest Paid InterestPaid	132500000	USD
CY2018	us-gaap	Interest Paid InterestPaid	122100000	USD
CY2020Q3	us-gaap	Inventory Raw Materials InventoryRawMaterials	152300000	USD
CY2019Q3	us-gaap	Inventory Raw Materials InventoryRawMaterials	166100000	USD
CY2020Q3	us-gaap	Inventory Work In Process InventoryWorkInProcess	46500000	USD
CY2019Q3	us-gaap	Inventory Work In Process InventoryWorkInProcess	54500000	USD
CY2020Q3	us-gaap	Inventory Finished Goods InventoryFinishedGoods	196300000	USD
CY2019Q3	us-gaap	Inventory Finished Goods InventoryFinishedGoods	224300000	USD
CY2020Q3	us-gaap	Inventory Net InventoryNet	395100000	USD
CY2019Q3	us-gaap	Inventory Net InventoryNet	444900000	USD
CY2020Q3	holx	Manufacturing Equipment And Software ManufacturingEquipmentAndSoftware	460700000	USD
CY2019Q3	holx	Manufacturing Equipment And Software ManufacturingEquipmentAndSoftware	379200000	USD
CY2020Q3	holx	Equipment Under Customer Usage Agreements EquipmentUnderCustomerUsageAgreements	456800000	USD
CY2019Q3	holx	Equipment Under Customer Usage Agreements EquipmentUnderCustomerUsageAgreements	427500000	USD
CY2020Q3	us-gaap	Buildings And Improvements Gross BuildingsAndImprovementsGross	167300000	USD
CY2019Q3	us-gaap	Buildings And Improvements Gross BuildingsAndImprovementsGross	196700000	USD
CY2020Q3	us-gaap	Leasehold Improvements Gross LeaseholdImprovementsGross	44300000	USD
CY2019Q3	us-gaap	Leasehold Improvements Gross LeaseholdImprovementsGross	61700000	USD
CY2020Q3	us-gaap	Land Land	40700000	USD
CY2019Q3	us-gaap	Land Land	46300000	USD
CY2020Q3	us-gaap	Furniture And Fixtures Gross FurnitureAndFixturesGross	16100000	USD
CY2019Q3	us-gaap	Furniture And Fixtures Gross FurnitureAndFixturesGross	17500000	USD
CY2020Q3	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	1185900000	USD
CY2019Q3	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	1128900000	USD
CY2020Q3	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	694400000	USD
CY2019Q3	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	658000000.0	USD
CY2020Q3	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	491500000	USD
CY2019Q3	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	470900000	USD
CY2020Q3	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	4931100000	USD
CY2020Q3	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	3623600000	USD
CY2019Q3	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	4786600000	USD
CY2019Q3	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	3326800000	USD
CY2019	us-gaap	Goodwill And Intangible Asset Impairment GoodwillAndIntangibleAssetImpairment	685400000	USD
CY2020Q3	us-gaap	Finite Lived Intangible Assets Amortization Expense Next Twelve Months FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths	283500000	USD
CY2020Q3	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Two FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo	273100000	USD
CY2020Q3	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Three FiniteLivedIntangibleAssetsAmortizationExpenseYearThree	176000000.0	USD
CY2020Q3	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Four FiniteLivedIntangibleAssetsAmortizationExpenseYearFour	164600000	USD
CY2020Q3	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Five FiniteLivedIntangibleAssetsAmortizationExpenseYearFive	151100000	USD
CY2020Q3	holx	Goodwill Not At Risk Of Failing Impairment GoodwillNotAtRiskOfFailingImpairment	2600000000	USD
CY2018Q1	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	685700000	USD
CY2019Q3	us-gaap	Goodwill Goodwill	2563700000	USD
CY2020	us-gaap	Goodwill Foreign Currency Translation Gain Loss GoodwillForeignCurrencyTranslationGainLoss	5300000	USD
CY2020Q3	us-gaap	Goodwill Goodwill	2657900000	USD
CY2020Q3	us-gaap	Income Tax Receivable IncomeTaxReceivable	325700000	USD
CY2019Q3	us-gaap	Income Tax Receivable IncomeTaxReceivable	0	USD
CY2020Q3	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	80700000	USD
CY2019Q3	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	0	USD
CY2020Q3	us-gaap	Cash Surrender Value Of Life Insurance CashSurrenderValueOfLifeInsurance	49300000	USD
CY2019Q3	us-gaap	Cash Surrender Value Of Life Insurance CashSurrenderValueOfLifeInsurance	44600000	USD
CY2020Q3	us-gaap	Deferred Income Tax Assets Net DeferredIncomeTaxAssetsNet	15500000	USD
CY2019Q3	us-gaap	Deferred Income Tax Assets Net DeferredIncomeTaxAssetsNet	17200000	USD
CY2020Q3	holx	Cost Method Equity Investments CostMethodEquityInvestments	11400000	USD
CY2019Q3	holx	Cost Method Equity Investments CostMethodEquityInvestments	11400000	USD
CY2020Q3	holx	Equity Method Investment And Loans To Acquiree EquityMethodInvestmentAndLoansToAcquiree	0	USD
CY2019Q3	holx	Equity Method Investment And Loans To Acquiree EquityMethodInvestmentAndLoansToAcquiree	42700000	USD
CY2020Q3	us-gaap	Other Assets Miscellaneous OtherAssetsMiscellaneous	34000000.0	USD
CY2019Q3	us-gaap	Other Assets Miscellaneous OtherAssetsMiscellaneous	38700000	USD
CY2020Q3	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	516600000	USD
CY2019Q3	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	154600000	USD
CY2019Q3	us-gaap	Accumulated Other Comprehensive Income Loss Foreign Currency Translation Adjustment Net Of Tax AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax	-41400000	USD
CY2019Q3	us-gaap	Accumulated Other Comprehensive Income Loss Defined Benefit Pension And Other Postretirement Plans Net Of Tax AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax	1700000	USD
CY2019Q3	holx	Accumulatedothercomprehensive Incomeloss Hedge AccumulatedothercomprehensiveIncomelossHedge	-2700000	USD
CY2019Q3	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-42300000	USD
CY2018Q3	us-gaap	Accumulated Other Comprehensive Income Loss Foreign Currency Translation Adjustment Net Of Tax AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax	-26600000	USD
CY2018Q3	us-gaap	Accumulated Other Comprehensive Income Loss Defined Benefit Pension And Other Postretirement Plans Net Of Tax AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax	1100000	USD
CY2018Q3	holx	Accumulatedothercomprehensive Incomeloss Hedge AccumulatedothercomprehensiveIncomelossHedge	2200000	USD
CY2018Q3	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-25500000	USD
CY2020	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent	18500000	USD
CY2020	us-gaap	Other Comprehensive Income Defined Benefit Plans Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPortionAttributableToParent	100000	USD
CY2020	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodBeforeTax	-500000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Before Reclassifications Before Tax OtherComprehensiveIncomeLossBeforeReclassificationsBeforeTax	-9700000	USD
CY2019	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent	-14800000	USD
CY2019	us-gaap	Other Comprehensive Income Defined Benefit Plans Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPortionAttributableToParent	600000	USD
CY2019	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodBeforeTax	-8000000.0	USD
CY2019	us-gaap	Other Comprehensive Income Loss Before Reclassifications Before Tax OtherComprehensiveIncomeLossBeforeReclassificationsBeforeTax	-19900000	USD
CY2020	us-gaap	Reclassification From Accumulated Other Comprehensive Income Current Period Net Of Tax ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax	2300000	USD
CY2019	us-gaap	Reclassification From Accumulated Other Comprehensive Income Current Period Net Of Tax ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax	3100000	USD
CY2020Q3	us-gaap	Accumulated Other Comprehensive Income Loss Foreign Currency Translation Adjustment Net Of Tax AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax	-22900000	USD
CY2020Q3	us-gaap	Accumulated Other Comprehensive Income Loss Defined Benefit Pension And Other Postretirement Plans Net Of Tax AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax	1800000	USD
CY2020Q3	holx	Accumulatedothercomprehensive Incomeloss Hedge AccumulatedothercomprehensiveIncomelossHedge	-900000	USD
CY2020Q3	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-49700000	USD
CY2019Q3	us-gaap	Accumulated Other Comprehensive Income Loss Foreign Currency Translation Adjustment Net Of Tax AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax	-41400000	USD
CY2019Q3	us-gaap	Accumulated Other Comprehensive Income Loss Defined Benefit Pension And Other Postretirement Plans Net Of Tax AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax	1700000	USD
CY2019Q3	holx	Accumulatedothercomprehensive Incomeloss Hedge AccumulatedothercomprehensiveIncomelossHedge	-2700000	USD
CY2019Q3	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-42300000	USD
CY2018Q4	holx	Interest Rate Cap Agreements Aggregate Premium Payable InterestRateCapAgreementsAggregatePremiumPayable	3700000	USD
CY2020Q3	holx	Principal Amount Of Borrowings PrincipalAmountOfBorrowings	1000000000.0	USD
CY2020	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesNetOfTax	-2300000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesNetOfTax	-3100000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesNetOfTax	-3600000	USD
CY2020	us-gaap	Derivative Instruments Gain Loss Reclassification From Accumulated Oci To Income Estimated Net Amount To Be Transferred DerivativeInstrumentsGainLossReclassificationFromAccumulatedOCIToIncomeEstimatedNetAmountToBeTransferred	500000	USD
CY2020Q3	us-gaap	Derivative Liability Notional Amount DerivativeLiabilityNotionalAmount	1000000000.0	USD
CY2020Q3	us-gaap	Derivative Liability Notional Amount DerivativeLiabilityNotionalAmount	1000000000.0	USD
CY2020Q3	holx	Principal Amount Of Borrowings PrincipalAmountOfBorrowings	1000000000.0	USD
CY2020	us-gaap	Gain Loss On Foreign Currency Derivatives Recorded In Earnings Net GainLossOnForeignCurrencyDerivativesRecordedInEarningsNet	-1200000	USD
CY2019	us-gaap	Gain Loss On Foreign Currency Derivatives Recorded In Earnings Net GainLossOnForeignCurrencyDerivativesRecordedInEarningsNet	11000000.0	USD
CY2018	us-gaap	Gain Loss On Foreign Currency Derivatives Recorded In Earnings Net GainLossOnForeignCurrencyDerivativesRecordedInEarningsNet	-1300000	USD
CY2020	us-gaap	Unrealized Gain Loss On Foreign Currency Derivatives Net Before Tax UnrealizedGainLossOnForeignCurrencyDerivativesNetBeforeTax	3800000	USD
CY2019	us-gaap	Unrealized Gain Loss On Foreign Currency Derivatives Net Before Tax UnrealizedGainLossOnForeignCurrencyDerivativesNetBeforeTax	-2100000	USD
CY2018	us-gaap	Unrealized Gain Loss On Foreign Currency Derivatives Net Before Tax UnrealizedGainLossOnForeignCurrencyDerivativesNetBeforeTax	6600000	USD
CY2020Q3	holx	Notional Amount NotionalAmount	172600000	USD
CY2020Q3	us-gaap	Cash Flow Hedge Derivative Instrument Assets At Fair Value CashFlowHedgeDerivativeInstrumentAssetsAtFairValue	0	USD
CY2019Q3	us-gaap	Cash Flow Hedge Derivative Instrument Assets At Fair Value CashFlowHedgeDerivativeInstrumentAssetsAtFairValue	4800000	USD
CY2020Q3	us-gaap	Derivative Liabilities DerivativeLiabilities	31200000	USD
CY2019Q3	us-gaap	Derivative Liabilities DerivativeLiabilities	0	USD
CY2020	us-gaap	Oci Before Reclassifications Net Of Tax Attributable To Parent OciBeforeReclassificationsNetOfTaxAttributableToParent	-28100000	USD
CY2019	us-gaap	Oci Before Reclassifications Net Of Tax Attributable To Parent OciBeforeReclassificationsNetOfTaxAttributableToParent	-4500000	USD
CY2018	us-gaap	Oci Before Reclassifications Net Of Tax Attributable To Parent OciBeforeReclassificationsNetOfTaxAttributableToParent	-5700000	USD
CY2020	us-gaap	Gain Loss On Fair Value Hedges Recognized In Earnings GainLossOnFairValueHedgesRecognizedInEarnings	2600000	USD
CY2019	us-gaap	Gain Loss On Fair Value Hedges Recognized In Earnings GainLossOnFairValueHedgesRecognizedInEarnings	8900000	USD
CY2018	us-gaap	Gain Loss On Fair Value Hedges Recognized In Earnings GainLossOnFairValueHedgesRecognizedInEarnings	5300000	USD
CY2019Q3	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	17800000	USD
CY2020	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	26800000	USD
CY2020	holx	Accounts Receivable Reserve Divested AccountsReceivableReserveDivested	-5800000	USD
CY2020	holx	Accounts Receivable Allowance Reduction AccountsReceivableAllowanceReduction	7200000	USD
CY2020Q3	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	31600000	USD
CY2018Q3	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	16200000	USD
CY2019	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	4400000	USD
CY2019	holx	Accounts Receivable Reserve Divested AccountsReceivableReserveDivested	0	USD
CY2019	holx	Accounts Receivable Allowance Reduction AccountsReceivableAllowanceReduction	2800000	USD
CY2019Q3	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	17800000	USD
CY2017Q3	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	9800000	USD
CY2018	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	7000000.0	USD
CY2018	holx	Accounts Receivable Reserve Divested AccountsReceivableReserveDivested	0	USD
CY2018	holx	Accounts Receivable Allowance Reduction AccountsReceivableAllowanceReduction	600000	USD
CY2018Q3	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	16200000	USD
CY2020	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	262727000	shares
CY2019	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	269413000	shares
CY2018	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	275105000	shares
CY2020	holx	Weighted Average Common Stock Equivalents From Assumed Exercise Of Stock Options And Restricted Stock Units WeightedAverageCommonStockEquivalentsFromAssumedExerciseOfStockOptionsAndRestrictedStockUnits	1886000	shares
CY2019	holx	Weighted Average Common Stock Equivalents From Assumed Exercise Of Stock Options And Restricted Stock Units WeightedAverageCommonStockEquivalentsFromAssumedExerciseOfStockOptionsAndRestrictedStockUnits	0	shares
CY2018	holx	Weighted Average Common Stock Equivalents From Assumed Exercise Of Stock Options And Restricted Stock Units WeightedAverageCommonStockEquivalentsFromAssumedExerciseOfStockOptionsAndRestrictedStockUnits	0	shares
CY2020	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	264613000	shares
CY2019	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	269413000	shares
CY2018	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	275105000	shares
CY2018	us-gaap	Advertising Expense AdvertisingExpense	26900000	USD
CY2020	us-gaap	Revenues Revenues	3776400000	USD
CY2019Q3	us-gaap	Product Warranty Accrual ProductWarrantyAccrual	13900000	USD
CY2020	us-gaap	Product Warranty Accrual Warranties Issued ProductWarrantyAccrualWarrantiesIssued	11700000	USD
CY2020	us-gaap	Product Warranty Accrual Additions From Business Acquisition ProductWarrantyAccrualAdditionsFromBusinessAcquisition	500000	USD
CY2020	us-gaap	Standard Product Warranty Accrual Period Increase Decrease StandardProductWarrantyAccrualPeriodIncreaseDecrease	-6100000	USD
CY2020	us-gaap	Product Warranty Accrual Payments ProductWarrantyAccrualPayments	10100000	USD
CY2020Q3	us-gaap	Product Warranty Accrual ProductWarrantyAccrual	9900000	USD
CY2018Q3	us-gaap	Product Warranty Accrual ProductWarrantyAccrual	15900000	USD
CY2019	us-gaap	Product Warranty Accrual Warranties Issued ProductWarrantyAccrualWarrantiesIssued	14100000	USD
CY2019	us-gaap	Product Warranty Accrual Additions From Business Acquisition ProductWarrantyAccrualAdditionsFromBusinessAcquisition	0	USD
CY2019	us-gaap	Standard Product Warranty Accrual Period Increase Decrease StandardProductWarrantyAccrualPeriodIncreaseDecrease	0	USD
CY2019	us-gaap	Product Warranty Accrual Payments ProductWarrantyAccrualPayments	16100000	USD
CY2019Q3	us-gaap	Product Warranty Accrual ProductWarrantyAccrual	13900000	USD
CY2020	us-gaap	Advertising Expense AdvertisingExpense	15600000	USD
CY2019	us-gaap	Advertising Expense AdvertisingExpense	29500000	USD
CY2019	us-gaap	Revenues Revenues	3367300000	USD
CY2019Q3	us-gaap	Finance Lease Liability FinanceLeaseLiability	21000000.0	USD
CY2018	us-gaap	Revenues Revenues	3217900000	USD
CY2020	us-gaap	Revenues Revenues	3776400000	USD
CY2019	us-gaap	Revenues Revenues	3367300000	USD
CY2018	us-gaap	Revenues Revenues	3217900000	USD
CY2020	us-gaap	Revenues Revenues	3776400000	USD
CY2019	us-gaap	Revenues Revenues	3367300000	USD
CY2018	us-gaap	Revenues Revenues	3217900000	USD
CY2020Q3	us-gaap	Revenue Remaining Performance Obligation RevenueRemainingPerformanceObligation	635600000	USD
CY2020Q3	us-gaap	Revenue Remaining Performance Obligation Percentage RevenueRemainingPerformanceObligationPercentage	0.39
CY2020Q3	us-gaap	Revenue Remaining Performance Obligation Percentage RevenueRemainingPerformanceObligationPercentage	0.28
CY2020Q3	us-gaap	Revenue Remaining Performance Obligation Percentage RevenueRemainingPerformanceObligationPercentage	0.19
CY2020Q3	us-gaap	Revenue Remaining Performance Obligation Percentage RevenueRemainingPerformanceObligationPercentage	0.10
CY2020Q3	us-gaap	Revenue Remaining Performance Obligation Percentage RevenueRemainingPerformanceObligationPercentage	0.04
CY2020	us-gaap	Contract With Customer Liability Revenue Recognized ContractWithCustomerLiabilityRevenueRecognized	158900000	USD
CY2019Q3	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	91700000	USD
CY2019Q3	us-gaap	Finance Lease Right Of Use Asset FinanceLeaseRightOfUseAsset	10200000	USD
CY2019Q3	us-gaap	Operating Lease Liability OperatingLeaseLiability	96600000	USD
CY2020	holx	Lessee Operating And Finance Lease Period With Option To Terminate LesseeOperatingAndFinanceLeasePeriodWithOptionToTerminate	P1Y
CY2020	holx	Lessee Operating And Finance Leases Extension Period LesseeOperatingAndFinanceLeasesExtensionPeriod	P20Y
CY2020	holx	Lessee Operating And Finance Leases Weighted Average Discount Rate Percent LesseeOperatingAndFinanceLeasesWeightedAverageDiscountRatePercent	0.0262
CY2019Q3	us-gaap	Finance Lease Liability Current FinanceLeaseLiabilityCurrent	1800000	USD
CY2019Q3	us-gaap	Finance Lease Liability Noncurrent FinanceLeaseLiabilityNoncurrent	19200000	USD
CY2020Q3	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P5Y6M29D
CY2020Q3	us-gaap	Finance Lease Weighted Average Remaining Lease Term1 FinanceLeaseWeightedAverageRemainingLeaseTerm1	P7Y7M20D
CY2020Q3	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.020
CY2020Q3	us-gaap	Finance Lease Weighted Average Discount Rate Percent FinanceLeaseWeightedAverageDiscountRatePercent	0.051
CY2020	us-gaap	Operating Lease Cost OperatingLeaseCost	27500	USD
CY2020	us-gaap	Finance Lease Right Of Use Asset Amortization FinanceLeaseRightOfUseAssetAmortization	300	USD
CY2020	us-gaap	Finance Lease Interest Expense FinanceLeaseInterestExpense	1000.0	USD
CY2020	us-gaap	Finance Lease Interest Payment On Liability FinanceLeaseInterestPaymentOnLiability	1000.0	USD
CY2020	us-gaap	Operating Lease Payments OperatingLeasePayments	23900	USD
CY2020	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	1700	USD
CY2020	holx	Operating And Finance Lease Total Cash Paid For Amounts Included In Measurement Of Lease Liability OperatingAndFinanceLeaseTotalCashPaidForAmountsIncludedInMeasurementOfLeaseLiability	26600	USD
CY2020	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	13300	USD
CY2019	us-gaap	Operating Leases Rent Expense Net OperatingLeasesRentExpenseNet	23100000	USD
CY2018	us-gaap	Operating Leases Rent Expense Net OperatingLeasesRentExpenseNet	23100000	USD
CY2020Q3	us-gaap	Lessee Operating Lease Liability Payments Due Next Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths	25000.0	USD
CY2020Q3	us-gaap	Finance Lease Liability Payments Due Next Twelve Months FinanceLeaseLiabilityPaymentsDueNextTwelveMonths	2800	USD
CY2020Q3	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	20300	USD
CY2020Q3	us-gaap	Finance Lease Liability Payments Due Year Two FinanceLeaseLiabilityPaymentsDueYearTwo	3000.0	USD
CY2020Q3	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	13800	USD
CY2020Q3	us-gaap	Finance Lease Liability Payments Due Year Three FinanceLeaseLiabilityPaymentsDueYearThree	3000.0	USD
CY2020Q3	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	11100	USD
CY2020Q3	us-gaap	Finance Lease Liability Payments Due Year Four FinanceLeaseLiabilityPaymentsDueYearFour	3000.0	USD
CY2020Q3	us-gaap	Lessee Operating Lease Liability Payments Due Year Five LesseeOperatingLeaseLiabilityPaymentsDueYearFive	8500	USD
CY2020Q3	us-gaap	Finance Lease Liability Payments Due Year Five FinanceLeaseLiabilityPaymentsDueYearFive	3100	USD
CY2020Q3	us-gaap	Lessee Operating Lease Liability Payments Due After Year Five LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive	16000.0	USD
CY2020Q3	us-gaap	Finance Lease Liability Payments Due After Year Five FinanceLeaseLiabilityPaymentsDueAfterYearFive	8400	USD
CY2020Q3	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	94700	USD
CY2020Q3	us-gaap	Finance Lease Liability Payments Due FinanceLeaseLiabilityPaymentsDue	23300	USD
CY2020Q3	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	5600	USD
CY2020Q3	us-gaap	Finance Lease Liability Undiscounted Excess Amount FinanceLeaseLiabilityUndiscountedExcessAmount	4000.0	USD
CY2020Q3	us-gaap	Operating Lease Liability OperatingLeaseLiability	89100	USD
CY2020Q3	us-gaap	Finance Lease Liability FinanceLeaseLiability	19300	USD
CY2019Q3	us-gaap	Operating Leases Future Minimum Payments Due Current OperatingLeasesFutureMinimumPaymentsDueCurrent	20500	USD
CY2019Q3	us-gaap	Capital Leases Future Minimum Payments Due Current CapitalLeasesFutureMinimumPaymentsDueCurrent	5800	USD
CY2019Q3	us-gaap	Operating Leases Future Minimum Payments Due In Two Years OperatingLeasesFutureMinimumPaymentsDueInTwoYears	17300	USD
CY2019Q3	us-gaap	Capital Leases Future Minimum Payments Due In Two Years CapitalLeasesFutureMinimumPaymentsDueInTwoYears	5800	USD
CY2019Q3	us-gaap	Operating Leases Future Minimum Payments Due In Three Years OperatingLeasesFutureMinimumPaymentsDueInThreeYears	13300	USD
CY2019Q3	us-gaap	Capital Leases Future Minimum Payments Due In Three Years CapitalLeasesFutureMinimumPaymentsDueInThreeYears	6100	USD
CY2019Q3	us-gaap	Operating Leases Future Minimum Payments Due In Four Years OperatingLeasesFutureMinimumPaymentsDueInFourYears	6600	USD
CY2019Q3	us-gaap	Capital Leases Future Minimum Payments Due In Four Years CapitalLeasesFutureMinimumPaymentsDueInFourYears	6200	USD
CY2019Q3	us-gaap	Operating Leases Future Minimum Payments Due In Five Years OperatingLeasesFutureMinimumPaymentsDueInFiveYears	5900	USD
CY2019Q3	us-gaap	Capital Leases Future Minimum Payments Due In Five Years CapitalLeasesFutureMinimumPaymentsDueInFiveYears	5500	USD
CY2019Q3	us-gaap	Operating Leases Future Minimum Payments Due Thereafter OperatingLeasesFutureMinimumPaymentsDueThereafter	14600	USD
CY2019Q3	us-gaap	Capital Leases Future Minimum Payments Due Thereafter CapitalLeasesFutureMinimumPaymentsDueThereafter	19500	USD
CY2019Q3	us-gaap	Operating Leases Future Minimum Payments Due OperatingLeasesFutureMinimumPaymentsDue	78200	USD
CY2019Q3	us-gaap	Capital Leases Future Minimum Payments Due CapitalLeasesFutureMinimumPaymentsDue	48900	USD
CY2020Q3	holx	Lease Revenue Percentage Of Total Revenue LeaseRevenuePercentageOfTotalRevenue	0.04
CY2020	us-gaap	Right Of Use Asset Obtained In Exchange For Finance Lease Liability RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability	10200000	USD
CY2020Q3	holx	Lease Receivable LeaseReceivable	19300000	USD
CY2020	us-gaap	Operating Leases Rent Expense Sublease Rentals1 OperatingLeasesRentExpenseSubleaseRentals1	2000000.0	USD
CY2019	us-gaap	Operating Leases Rent Expense Sublease Rentals1 OperatingLeasesRentExpenseSubleaseRentals1	2700000	USD
CY2018	us-gaap	Operating Leases Rent Expense Sublease Rentals1 OperatingLeasesRentExpenseSubleaseRentals1	2600000	USD
CY2020Q3	us-gaap	Operating Leases Future Minimum Payments Receivable Current OperatingLeasesFutureMinimumPaymentsReceivableCurrent	3000000.0	USD
CY2020Q3	us-gaap	Operating Leases Future Minimum Payments Receivable In Two Years OperatingLeasesFutureMinimumPaymentsReceivableInTwoYears	3000000.0	USD
CY2020Q3	us-gaap	Operating Leases Future Minimum Payments Receivable In Three Years OperatingLeasesFutureMinimumPaymentsReceivableInThreeYears	3000000.0	USD
CY2020Q3	us-gaap	Operating Leases Future Minimum Payments Receivable In Four Years OperatingLeasesFutureMinimumPaymentsReceivableInFourYears	2900000	USD
CY2020Q3	us-gaap	Operating Leases Future Minimum Payments Receivable In Five Years OperatingLeasesFutureMinimumPaymentsReceivableInFiveYears	1900000	USD
CY2020Q3	us-gaap	Operating Leases Future Minimum Payments Receivable Thereafter OperatingLeasesFutureMinimumPaymentsReceivableThereafter	2600000	USD
CY2020Q3	us-gaap	Operating Leases Future Minimum Payments Receivable OperatingLeasesFutureMinimumPaymentsReceivable	16400000	USD
CY2019Q4	holx	Business Combination Consideration Transferred Portion Allocable To Fair Value Of Noncontrolling Interest BusinessCombinationConsiderationTransferredPortionAllocableToFairValueOfNoncontrollingInterest	8600000	USD
CY2020	us-gaap	Severance Costs1 SeveranceCosts1	13400000	USD
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Plan Modification Incremental Compensation Cost ShareBasedCompensationArrangementByShareBasedPaymentAwardPlanModificationIncrementalCompensationCost	5000000.0	USD
CY2020Q3	holx	Expected Future Severance Charges ExpectedFutureSeveranceCharges	1700000	USD
CY2020Q1	holx	Divestiture Charges DivestitureCharges	1900000	USD
CY2019	us-gaap	Severance Costs1 SeveranceCosts1	4000000.0	USD
CY2018	us-gaap	Severance Costs1 SeveranceCosts1	9000000.0	USD
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Plan Modification Incremental Compensation Cost ShareBasedCompensationArrangementByShareBasedPaymentAwardPlanModificationIncrementalCompensationCost	1300000	USD
CY2020Q3	us-gaap	Long Term Debt Current LongTermDebtCurrent	324900000	USD
CY2019Q3	us-gaap	Long Term Debt Current LongTermDebtCurrent	271400000	USD
CY2020Q3	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	2713900000	USD
CY2019Q3	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	2783600000	USD
CY2020Q3	us-gaap	Long Term Debt LongTermDebt	3038800000	USD
CY2019Q3	us-gaap	Long Term Debt LongTermDebt	3055000000.0	USD
CY2020Q3	us-gaap	Long Term Debt Maturities Repayments Of Principal In Next Twelve Months LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths	325000000.0	USD
CY2020Q3	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Two LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo	75000000.0	USD
CY2020Q3	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Three LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree	112500000	USD
CY2020Q3	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Four LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour	1200000000.0	USD
CY2020Q3	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive	950000000.0	USD
CY2020Q3	us-gaap	Long Term Debt Maturities Repayments Of Principal After Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive	400000000.0	USD
CY2020Q3	us-gaap	Debt Longterm And Shortterm Combined Amount DebtLongtermAndShorttermCombinedAmount	3062500000	USD
CY2018Q4	us-gaap	Adjustments To Additional Paid In Capital Equity Component Of Convertible Debt AdjustmentsToAdditionalPaidInCapitalEquityComponentOfConvertibleDebt	13400000	USD
CY2018Q4	holx	Deferred Taxes Reacquisitionof Equity Component DeferredTaxesReacquisitionofEquityComponent	3800000	USD
CY2020Q3	us-gaap	Investments Fair Value Disclosure InvestmentsFairValueDisclosure	11200000	USD
CY2020Q3	us-gaap	Fair Value Liabilities Measured On Recurring Basis Obligations FairValueLiabilitiesMeasuredOnRecurringBasisObligations	113000000.0	USD
CY2019Q3	us-gaap	Investments Fair Value Disclosure InvestmentsFairValueDisclosure	7700000	USD
CY2019Q3	us-gaap	Fair Value Liabilities Measured On Recurring Basis Obligations FairValueLiabilitiesMeasuredOnRecurringBasisObligations	9200000	USD
CY2019Q3	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliations Recurring Basis Liability Value FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue	9100000	USD
CY2018Q3	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliations Recurring Basis Liability Value FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue	7800000	USD
CY2017Q3	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliations Recurring Basis Liability Value FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue	0	USD
CY2020	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Purchases FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityPurchases	82700000	USD
CY2019	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Purchases FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityPurchases	0	USD
CY2018	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Purchases FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityPurchases	7800000	USD
CY2020	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Gain Loss Included In Earnings FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInEarnings	300000	USD
CY2019	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Gain Loss Included In Earnings FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInEarnings	1700000	USD
CY2018	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Gain Loss Included In Earnings FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInEarnings	0	USD
CY2020	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Settlements FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilitySettlements	10300000	USD
CY2019	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Settlements FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilitySettlements	400000	USD
CY2018	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Settlements FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilitySettlements	0	USD
CY2020Q3	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliations Recurring Basis Liability Value FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue	81800000	USD
CY2019Q3	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliations Recurring Basis Liability Value FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue	9100000	USD
CY2018Q3	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliations Recurring Basis Liability Value FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue	7800000	USD
CY2019Q4	us-gaap	Asset Impairment Charges AssetImpairmentCharges	30200000	USD
CY2019Q1	us-gaap	Asset Impairment Charges AssetImpairmentCharges	685400000	USD
CY2020	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	921100000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	-174300000	USD
CY2018	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	-581900000	USD
CY2020	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	80800000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	-83400000	USD
CY2018	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	163300000	USD
CY2020	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	1001900000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	-257700000	USD
CY2018	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	-418600000	USD
CY2020	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	-62100000	USD
CY2019	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	142900000	USD
CY2018	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	137100000	USD
CY2020	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-76600000	USD
CY2019	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-189900000	USD
CY2018	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-461900000	USD
CY2020	us-gaap	Federal Income Tax Expense Benefit Continuing Operations FederalIncomeTaxExpenseBenefitContinuingOperations	-138700000	USD
CY2019	us-gaap	Federal Income Tax Expense Benefit Continuing Operations FederalIncomeTaxExpenseBenefitContinuingOperations	-47000000.0	USD
CY2018	us-gaap	Federal Income Tax Expense Benefit Continuing Operations FederalIncomeTaxExpenseBenefitContinuingOperations	-324800000	USD
CY2020	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	33900000	USD
CY2019	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	22100000	USD
CY2018	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	11000000.0	USD
CY2020	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-12500000	USD
CY2019	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-41000000.0	USD
CY2018	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-11300000	USD
CY2020	us-gaap	State And Local Income Tax Expense Benefit Continuing Operations StateAndLocalIncomeTaxExpenseBenefitContinuingOperations	21400000	USD
CY2019	us-gaap	State And Local Income Tax Expense Benefit Continuing Operations StateAndLocalIncomeTaxExpenseBenefitContinuingOperations	-18900000	USD
CY2018	us-gaap	State And Local Income Tax Expense Benefit Continuing Operations StateAndLocalIncomeTaxExpenseBenefitContinuingOperations	-300000	USD
CY2020	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	14000000.0	USD
CY2019	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	16500000	USD
CY2018	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	21900000	USD
CY2020	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	-5300000	USD
CY2019	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	-4700000	USD
CY2018	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	-4100000	USD
CY2020	us-gaap	Foreign Income Tax Expense Benefit Continuing Operations ForeignIncomeTaxExpenseBenefitContinuingOperations	8700000	USD
CY2019	us-gaap	Foreign Income Tax Expense Benefit Continuing Operations ForeignIncomeTaxExpenseBenefitContinuingOperations	11800000	USD
CY2018	us-gaap	Foreign Income Tax Expense Benefit Continuing Operations ForeignIncomeTaxExpenseBenefitContinuingOperations	17800000	USD
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-108600000	USD
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-54100000	USD
CY2018	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-307300000	USD
CY2020	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210
CY2019	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210
CY2018	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.245
CY2020	holx	Effective Income Tax Reconciliation Loss On Sale Of Cynosure EffectiveIncomeTaxReconciliationLossOnSaleOfCynosure	0.313
CY2019	holx	Effective Income Tax Reconciliation Loss On Sale Of Cynosure EffectiveIncomeTaxReconciliationLossOnSaleOfCynosure	0
CY2018	holx	Effective Income Tax Reconciliation Loss On Sale Of Cynosure EffectiveIncomeTaxReconciliationLossOnSaleOfCynosure	0
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Deductions Qualified Production Activities EffectiveIncomeTaxRateReconciliationDeductionsQualifiedProductionActivities	0
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Tax Cuts And Jobs Act Of2017 Percent EffectiveIncomeTaxRateReconciliationTaxCutsAndJobsActOf2017Percent	0
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Deductions Qualified Production Activities EffectiveIncomeTaxRateReconciliationDeductionsQualifiedProductionActivities	0
CY2018	us-gaap	Effective Income Tax Rate Reconciliation Deductions Qualified Production Activities EffectiveIncomeTaxRateReconciliationDeductionsQualifiedProductionActivities	-0.031
CY2020	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.029
CY2019	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.007
CY2018	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	-0.007
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Repatriation Of Foreign Earnings EffectiveIncomeTaxRateReconciliationRepatriationOfForeignEarnings	0.026
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Repatriation Of Foreign Earnings EffectiveIncomeTaxRateReconciliationRepatriationOfForeignEarnings	-0.021
CY2018	us-gaap	Effective Income Tax Rate Reconciliation Repatriation Of Foreign Earnings EffectiveIncomeTaxRateReconciliationRepatriationOfForeignEarnings	0.001
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Restructuring Charges EffectiveIncomeTaxRateReconciliationNondeductibleExpenseRestructuringCharges	0
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Restructuring Charges EffectiveIncomeTaxRateReconciliationNondeductibleExpenseRestructuringCharges	0.038
CY2018	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Restructuring Charges EffectiveIncomeTaxRateReconciliationNondeductibleExpenseRestructuringCharges	0
CY2020	holx	Effective Income Tax Rate Reconciliation Non Deductible Goodwill EffectiveIncomeTaxRateReconciliationNonDeductibleGoodwill	0
CY2019	holx	Effective Income Tax Rate Reconciliation Non Deductible Goodwill EffectiveIncomeTaxRateReconciliationNonDeductibleGoodwill	0
CY2018	holx	Effective Income Tax Rate Reconciliation Non Deductible Goodwill EffectiveIncomeTaxRateReconciliationNonDeductibleGoodwill	-0.394
CY2020	holx	Effective Income Tax Rate Reconciliation Benefit Expense Research And Development EffectiveIncomeTaxRateReconciliationBenefitExpenseResearchAndDevelopment	0.006
CY2019	holx	Effective Income Tax Rate Reconciliation Benefit Expense Research And Development EffectiveIncomeTaxRateReconciliationBenefitExpenseResearchAndDevelopment	-0.033
CY2018	holx	Effective Income Tax Rate Reconciliation Benefit Expense Research And Development EffectiveIncomeTaxRateReconciliationBenefitExpenseResearchAndDevelopment	-0.019
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Tax Cuts And Jobs Act Of2017 Percent EffectiveIncomeTaxRateReconciliationTaxCutsAndJobsActOf2017Percent	-0.020
CY2018	us-gaap	Effective Income Tax Rate Reconciliation Tax Cuts And Jobs Act Of2017 Percent EffectiveIncomeTaxRateReconciliationTaxCutsAndJobsActOf2017Percent	0.827
CY2020	holx	Effective Income Tax Rate Reconciliation Unrecognized Tax Benefits EffectiveIncomeTaxRateReconciliationUnrecognizedTaxBenefits	0
CY2019	holx	Effective Income Tax Rate Reconciliation Unrecognized Tax Benefits EffectiveIncomeTaxRateReconciliationUnrecognizedTaxBenefits	0.001
CY2018	holx	Effective Income Tax Rate Reconciliation Unrecognized Tax Benefits EffectiveIncomeTaxRateReconciliationUnrecognizedTaxBenefits	-0.018
CY2020	holx	Effective Income Tax Rate Reconciliation Non Deductible Expense Executive Compensation Cost EffectiveIncomeTaxRateReconciliationNonDeductibleExpenseExecutiveCompensationCost	0.004
CY2019	holx	Effective Income Tax Rate Reconciliation Non Deductible Expense Executive Compensation Cost EffectiveIncomeTaxRateReconciliationNonDeductibleExpenseExecutiveCompensationCost	-0.008
CY2018	holx	Effective Income Tax Rate Reconciliation Non Deductible Expense Executive Compensation Cost EffectiveIncomeTaxRateReconciliationNonDeductibleExpenseExecutiveCompensationCost	-0.003
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential	0.012
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential	-0.054
CY2018	us-gaap	Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential	-0.052
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Change In Enacted Tax Rate EffectiveIncomeTaxRateReconciliationChangeInEnactedTaxRate	-0.006
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Change In Enacted Tax Rate EffectiveIncomeTaxRateReconciliationChangeInEnactedTaxRate	0
CY2018	us-gaap	Effective Income Tax Rate Reconciliation Change In Enacted Tax Rate EffectiveIncomeTaxRateReconciliationChangeInEnactedTaxRate	-0.012
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Change In Deferred Tax Assets Valuation Allowance EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance	0.013
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Change In Deferred Tax Assets Valuation Allowance EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance	-0.095
CY2018	us-gaap	Effective Income Tax Rate Reconciliation Change In Deferred Tax Assets Valuation Allowance EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance	0.005
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	-0.001
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	-0.031
CY2018	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	-0.010
CY2020	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	-0.108
CY2019	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.210
CY2018	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.734
CY2018	holx	Tax Cuts And Jobs Act Incomplete Accounting Provisional Income Tax Expense Benefit TaxCutsAndJobsActIncompleteAccountingProvisionalIncomeTaxExpenseBenefit	-346200000	USD
CY2018Q4	holx	Tax Cuts And Jobs Act Incomplete Accounting Provisional Income Tax Expense Benefit TaxCutsAndJobsActIncompleteAccountingProvisionalIncomeTaxExpenseBenefit	-341200000	USD
CY2020Q3	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	81100000	USD
CY2019Q3	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	34500000	USD
CY2020Q3	us-gaap	Deferred Tax Assets Capital Loss Carryforwards DeferredTaxAssetsCapitalLossCarryforwards	57000000.0	USD
CY2019Q3	us-gaap	Deferred Tax Assets Capital Loss Carryforwards DeferredTaxAssetsCapitalLossCarryforwards	6400000	USD
CY2020Q3	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Accrued Liabilities DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities	24900000	USD
CY2019Q3	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Accrued Liabilities DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities	24700000	USD
CY2020Q3	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Reserves DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsReserves	33200000	USD
CY2019Q3	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Reserves DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsReserves	22700000	USD
CY2020Q3	holx	Uk Intangibleassets UKIntangibleassets	0	USD
CY2019Q3	holx	Uk Intangibleassets UKIntangibleassets	25400000	USD
CY2020Q3	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Share Based Compensation Cost DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost	18600000	USD
CY2019Q3	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Share Based Compensation Cost DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost	20900000	USD
CY2020Q3	us-gaap	Deferred Tax Assets Tax Credit Carryforwards DeferredTaxAssetsTaxCreditCarryforwards	10200000	USD
CY2019Q3	us-gaap	Deferred Tax Assets Tax Credit Carryforwards DeferredTaxAssetsTaxCreditCarryforwards	14800000	USD
CY2020Q3	holx	Deferred Tax Assets Nonqualified Deferred Compensation Plan DeferredTaxAssetsNonqualifiedDeferredCompensationPlan	14400000	USD
CY2019Q3	holx	Deferred Tax Assets Nonqualified Deferred Compensation Plan DeferredTaxAssetsNonqualifiedDeferredCompensationPlan	12900000	USD
CY2020Q3	holx	Deferred Tax Assets Lease Liability DeferredTaxAssetsLeaseLiability	17300000	USD
CY2019Q3	holx	Deferred Tax Assets Lease Liability DeferredTaxAssetsLeaseLiability	0	USD
CY2020Q3	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	25200000	USD
CY2019Q3	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	17800000	USD
CY2020Q3	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	281900000	USD
CY2019Q3	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	180100000	USD
CY2020Q3	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	118500000	USD
CY2019Q3	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	60700000	USD
CY2020Q3	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	163400000	USD
CY2020Q3	holx	Deferred Tax Assets Operating Loss Carry Forwards That Will Expire Unutilized Foreign DeferredTaxAssetsOperatingLossCarryForwardsThatWillExpireUnutilizedForeign	47200000	USD
CY2020Q3	holx	State Loss Carryforward Expected To Unutilize StateLossCarryforwardExpectedToUnutilize	26100000	USD
CY2019Q3	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	119400000	USD
CY2020Q3	holx	Deferred Tax Liabilities Depreciation And Amortization DeferredTaxLiabilitiesDepreciationAndAmortization	333900000	USD
CY2019Q3	holx	Deferred Tax Liabilities Depreciation And Amortization DeferredTaxLiabilitiesDepreciationAndAmortization	373000000.0	USD
CY2020Q3	holx	Deferred Tax Liabilities Right Of Use Asset DeferredTaxLiabilitiesRightOfUseAsset	15800000	USD
CY2019Q3	holx	Deferred Tax Liabilities Right Of Use Asset DeferredTaxLiabilitiesRightOfUseAsset	0	USD
CY2020Q3	holx	Deferred Tax Liabilities Debt Discount DeferredTaxLiabilitiesDebtDiscount	0	USD
CY2019Q3	holx	Deferred Tax Liabilities Debt Discount DeferredTaxLiabilitiesDebtDiscount	4500000	USD
CY2020Q3	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	349700000	USD
CY2019Q3	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	377500000	USD
CY2020Q3	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	186300000	USD
CY2019Q3	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	258100000	USD
CY2020	us-gaap	Valuation Allowances And Reserves Period Increase Decrease ValuationAllowancesAndReservesPeriodIncreaseDecrease	57800000	USD
CY2020Q3	holx	Gross State Loss Carryforwards GrossStateLossCarryforwards	0.0	USD
CY2020Q3	holx	Gross Foreign Loss Carryforwards GrossForeignLossCarryforwards	32200000	USD
CY2020Q3	us-gaap	Operating Loss Carryforwards OperatingLossCarryforwards	32200000	USD
CY2020Q3	holx	Deferred Tax Assets Operating Loss Carry Forwards That Will Expire Unutilized Federal DeferredTaxAssetsOperatingLossCarryForwardsThatWillExpireUnutilizedFederal	4500000	USD
CY2020Q3	holx	Deferred Tax Assets Operating Loss Carry Forwards That Will Expire Unutilized State DeferredTaxAssetsOperatingLossCarryForwardsThatWillExpireUnutilizedState	74600000	USD
CY2018Q4	holx	Tax Cuts And Jobs Act Incomplete Accounting Provisional Income Tax Expense Benefit TaxCutsAndJobsActIncompleteAccountingProvisionalIncomeTaxExpenseBenefit	-341200000	USD
CY2018Q3	holx	Tax Cuts And Jobs Act Incomplete Accounting Provisional Income Tax Expense Benefit TaxCutsAndJobsActIncompleteAccountingProvisionalIncomeTaxExpenseBenefit	-346400000	USD
CY2020Q3	holx	Gross Unrecognized Tax Benefits GrossUnrecognizedTaxBenefits	197100000	USD
CY2020Q3	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	184900000	USD
CY2019Q3	holx	Gross Unrecognized Tax Benefits GrossUnrecognizedTaxBenefits	101600000	USD
CY2019Q3	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	87300000	USD
CY2019	us-gaap	Unrecognized Tax Benefits Period Increase Decrease UnrecognizedTaxBenefitsPeriodIncreaseDecrease	95500000	USD
CY2019Q3	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	101600000	USD
CY2018Q3	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	89500000	USD
CY2020	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	109600000	USD
CY2019	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	22700000	USD
CY2020	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromCurrentPeriodTaxPositions	0	USD
CY2019	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromCurrentPeriodTaxPositions	0	USD
CY2020	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	1500000	USD
CY2019Q3	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Nonvested Weighted Average Grant Date Fair Value SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedWeightedAverageGrantDateFairValue	13.54
CY2018Q3	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Nonvested Weighted Average Grant Date Fair Value SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedWeightedAverageGrantDateFairValue	12.98
CY2019	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	0	USD
CY2020	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	700000	USD
CY2019	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	4800000	USD
CY2020	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	0	USD
CY2019	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	0	USD
CY2020	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	15600000	USD
CY2019	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	5800000	USD
CY2020	us-gaap	Unrecognized Tax Benefits Increases Resulting From Acquisition UnrecognizedTaxBenefitsIncreasesResultingFromAcquisition	700000	USD
CY2019	us-gaap	Unrecognized Tax Benefits Increases Resulting From Acquisition UnrecognizedTaxBenefitsIncreasesResultingFromAcquisition	0	USD
CY2020Q3	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	197100000	USD
CY2019Q3	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	101600000	USD
CY2020Q3	us-gaap	Unrecognized Tax Benefits Interest On Income Taxes Accrued UnrecognizedTaxBenefitsInterestOnIncomeTaxesAccrued	11900000	USD
CY2019Q3	us-gaap	Unrecognized Tax Benefits Interest On Income Taxes Accrued UnrecognizedTaxBenefitsInterestOnIncomeTaxesAccrued	11100000	USD
CY2020Q3	us-gaap	Unrecognized Tax Benefits Income Tax Penalties Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAccrued	0	USD
CY2020	holx	Increaseindeferredtaxassetsresultingfromadoptionof Ascu201616 IncreaseindeferredtaxassetsresultingfromadoptionofASCU201616	2900000	USD
CY2020	holx	Deceaseinaccumulateddeficitresultingfromadoptionof Ascu201616 DeceaseinaccumulateddeficitresultingfromadoptionofASCU201616	2500000	USD
CY2020	holx	Deceasetoprepaidtaxesresultingfromadoptionof Ascu201616 DeceasetoprepaidtaxesresultingfromadoptionofASCU201616	400000	USD
CY2020	holx	Increasetoincometaxexpenseadoptionof Asu201616 IncreasetoincometaxexpenseadoptionofASU201616	27800000	USD
CY2020	holx	Decreaseindeferredtaxliabilitiesdueto Asc201616 DecreaseindeferredtaxliabilitiesduetoASC201616	37700000	USD
CY2020	holx	Increaseto Net Incomeresultedfromadoptionof Asu201616 IncreasetoNetIncomeresultedfromadoptionofASU201616	9900000	USD
CY2020	holx	Increaseto Earningsper Shareresultedfromadoptionof Asc201616 IncreasetoEarningsperShareresultedfromadoptionofASC201616	0.04
CY2018	us-gaap	Stock Repurchased During Period Shares StockRepurchasedDuringPeriodShares	5000000.0	shares
CY2018	us-gaap	Proceeds From Repurchase Of Equity ProceedsFromRepurchaseOfEquity	187300000	USD
CY2016Q2	us-gaap	Stock Repurchase Program Authorized Amount1 StockRepurchaseProgramAuthorizedAmount1	500000000.0	USD
CY2019Q3	us-gaap	Stock Repurchased During Period Shares StockRepurchasedDuringPeriodShares	2300000	shares
CY2018Q3	us-gaap	Proceeds From Repurchase Of Equity ProceedsFromRepurchaseOfEquity	88500000	USD
CY2019	us-gaap	Stock Repurchased During Period Shares StockRepurchasedDuringPeriodShares	4800000	shares
CY2019	us-gaap	Proceeds From Repurchase Of Equity ProceedsFromRepurchaseOfEquity	200100000	USD
CY2020Q3	holx	Asr Authorized ASRAuthorized	205	USD
CY2020Q1	holx	Asr Authorized ASRAuthorized	205000000	USD
CY2020Q1	holx	Amountpaidduringtheperiodunder Asr Agreement AmountpaidduringtheperiodunderASRAgreement	164000000.0	USD
CY2020Q1	holx	Asr Authorized ASRAuthorized	205000000	USD
CY2020Q2	holx	Asr Shares Repurchasedduringtheperiod ASRSharesRepurchasedduringtheperiod	600000	USD
CY2020	us-gaap	Share Based Compensation ShareBasedCompensation	83300000	USD
CY2019	us-gaap	Share Based Compensation ShareBasedCompensation	62000000.0	USD
CY2018	us-gaap	Share Based Compensation ShareBasedCompensation	65000000.0	USD
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod	1000000.0	shares
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod	1000000.0	shares
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod	1700000	shares
CY2020	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice	45.96
CY2019	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice	41.36
CY2018	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice	40.76
CY2020Q3	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Nonvested Weighted Average Grant Date Fair Value SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedWeightedAverageGrantDateFairValue	13.92
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate	0.017
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate	0.030
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate	0.021
CY2020	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Expected Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1	P4Y9M18D
CY2019	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Expected Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1	P4Y9M18D
CY2018	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Expected Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1	P4Y8M12D
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Weighted Average Volatility Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsWeightedAverageVolatilityRate	0.336
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Weighted Average Volatility Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsWeightedAverageVolatilityRate	0.343
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Weighted Average Volatility Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsWeightedAverageVolatilityRate	0.353
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Weighted Average Expected Dividend ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsWeightedAverageExpectedDividend	0	USD
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Weighted Average Expected Dividend ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsWeightedAverageExpectedDividend	0	USD
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Weighted Average Expected Dividend ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsWeightedAverageExpectedDividend	0	USD
CY2020	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	9500000	USD
CY2019	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	8900000	USD
CY2018	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	11700000	USD
CY2019Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	5500000	shares
CY2019Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	35.23
CY2019	holx	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Remaining Contractual Life ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualLife	P6Y1M6D
CY2019Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue	78400000	USD
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod	1000000.0	shares
CY2020	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice	45.96
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod	100000	shares
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures And Expirations In Period Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice	42.26
CY2020	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	1800000	shares
CY2020	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	27.51
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	44800000	USD
CY2020Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	4600000	shares
CY2020Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	40.37
CY2020	holx	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Remaining Contractual Life ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualLife	P7Y
CY2020Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue	109500000	USD
CY2020Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber	2200000	shares
CY2020Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice	37.81
CY2020	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Weighted Average Remaining Contractual Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1	P6Y
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Forfeitures Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue	42.69
CY2020Q3	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Intrinsic Value1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1	57200000	USD
CY2020Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingNumber	4500000	shares
CY2020Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageExercisePrice	40.35
CY2020	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Vested And Expected To Vest Outstanding Weighted Average Remaining Contractual Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageRemainingContractualTerm1	P7Y
CY2020Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Outstanding Aggregate Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingAggregateIntrinsicValue	108900000	USD
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	26100000	USD
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	15200000	USD
CY2019Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Number ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber	2500000	shares
CY2019Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue	42.17
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod	900000	shares
CY2020	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	45.65
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod	900000	shares
CY2020	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	38.54
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Forfeited In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod	100000	shares
CY2020Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Number ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber	2400000	shares
CY2020Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue	44.22
CY2020	holx	Minimum Target Number Of Shares Issued On Stock Performance In Percent MinimumTargetNumberOfSharesIssuedOnStockPerformanceInPercent	0
CY2020	holx	Maximum Target Number Of Shares Issued Based On Stock Performance In Percent MaximumTargetNumberOfSharesIssuedBasedOnStockPerformanceInPercent	2
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Award Vesting Period1 ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1	P3Y
CY2020	holx	Sharebased Compensation Arrangementby Sharebased Payment Award Cliff Vesting Periodfrom Grant Date SharebasedCompensationArrangementbySharebasedPaymentAwardCliffVestingPeriodfromGrantDate	P3Y
CY2020	us-gaap	Defined Contribution Plan Employer Discretionary Contribution Amount DefinedContributionPlanEmployerDiscretionaryContributionAmount	19600000	USD
CY2019	us-gaap	Defined Contribution Plan Employer Discretionary Contribution Amount DefinedContributionPlanEmployerDiscretionaryContributionAmount	19200000	USD
CY2018	us-gaap	Defined Contribution Plan Employer Discretionary Contribution Amount DefinedContributionPlanEmployerDiscretionaryContributionAmount	18600000	USD
CY2020Q3	us-gaap	Deferred Compensation Liability Current And Noncurrent DeferredCompensationLiabilityCurrentAndNoncurrent	57700000	USD
CY2019Q3	us-gaap	Deferred Compensation Liability Current And Noncurrent DeferredCompensationLiabilityCurrentAndNoncurrent	51900000	USD
CY2020Q3	us-gaap	Purchase Obligation Due In Next Twelve Months PurchaseObligationDueInNextTwelveMonths	267700000	USD
CY2020Q3	us-gaap	Purchase Obligation Due In Second Year PurchaseObligationDueInSecondYear	10200000	USD
CY2020Q3	us-gaap	Purchase Obligation Due In Third Year PurchaseObligationDueInThirdYear	700000	USD
CY2020Q3	us-gaap	Purchase Obligation Due In Fourth Year PurchaseObligationDueInFourthYear	700000	USD
CY2020Q3	us-gaap	Purchase Obligation Due In Fifth Year PurchaseObligationDueInFifthYear	400000	USD
CY2020Q3	holx	Purchaseobligationthereafter Purchaseobligationthereafter	100000	USD
CY2020Q3	us-gaap	Purchase Obligation PurchaseObligation	279800000	USD
CY2019Q4	us-gaap	Asset Impairment Charges AssetImpairmentCharges	30200000	USD
CY2020	us-gaap	Disposal Group Including Discontinued Operation Operating Income Loss DisposalGroupIncludingDiscontinuedOperationOperatingIncomeLoss	-46500	USD
CY2019	us-gaap	Disposal Group Including Discontinued Operation Operating Income Loss DisposalGroupIncludingDiscontinuedOperationOperatingIncomeLoss	-781200	USD
CY2020	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	5	Segment
CY2020	us-gaap	Revenues Revenues	3776400000	USD
CY2019	us-gaap	Revenues Revenues	3367300000	USD
CY2018	us-gaap	Revenues Revenues	3217900000	USD
CY2020	us-gaap	Operating Income Loss OperatingIncomeLoss	1105000000.0	USD
CY2019	us-gaap	Operating Income Loss OperatingIncomeLoss	-123800000	USD
CY2018	us-gaap	Operating Income Loss OperatingIncomeLoss	-237900000	USD
CY2020	us-gaap	Depreciation Amortization And Accretion Net DepreciationAmortizationAndAccretionNet	376000000.0	USD
CY2019	us-gaap	Depreciation Amortization And Accretion Net DepreciationAmortizationAndAccretionNet	463100000	USD
CY2018	us-gaap	Depreciation Amortization And Accretion Net DepreciationAmortizationAndAccretionNet	480300000	USD
CY2020	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	156400000	USD
CY2019	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	109100000	USD
CY2018	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	105600000	USD
CY2020Q3	us-gaap	Assets Assets	7195800000	USD
CY2019Q3	us-gaap	Assets Assets	6442100000	USD
CY2018Q3	us-gaap	Assets Assets	7230900000	USD
CY2020	holx	Percentage Of Revenues PercentageOfRevenues	1.000
CY2019	holx	Percentage Of Revenues PercentageOfRevenues	1.000
CY2018	holx	Percentage Of Revenues PercentageOfRevenues	1.000
CY2020Q3	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	491500000	USD
CY2019Q3	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	470900000	USD
CY2018Q3	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	478200000	USD
CY2020Q3	us-gaap	Accrued Employee Benefits Current AccruedEmployeeBenefitsCurrent	262700000	USD
CY2019Q3	us-gaap	Accrued Employee Benefits Current AccruedEmployeeBenefitsCurrent	223400000	USD
CY2020Q3	holx	Accrued Income And Other Taxes AccruedIncomeAndOtherTaxes	125300000	USD
CY2019Q3	holx	Accrued Income And Other Taxes AccruedIncomeAndOtherTaxes	56100000	USD
CY2020Q3	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	23500000	USD
CY2019Q3	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	0	USD
CY2020Q3	holx	Accrued Interest AccruedInterest	22100000	USD
CY2019Q3	holx	Accrued Interest AccruedInterest	22600000	USD
CY2020Q3	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	114000000.0	USD
CY2019Q3	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	128800000	USD
CY2020Q3	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	547600000	USD
CY2019Q3	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	430900000	USD
CY2020Q3	us-gaap	Liability For Uncertain Tax Positions Noncurrent LiabilityForUncertainTaxPositionsNoncurrent	103700000	USD
CY2019Q3	us-gaap	Liability For Uncertain Tax Positions Noncurrent LiabilityForUncertainTaxPositionsNoncurrent	106800000	USD
CY2020Q3	us-gaap	Contingent Consideration Classified As Equity Fair Value Disclosure ContingentConsiderationClassifiedAsEquityFairValueDisclosure	81800000	USD
CY2019Q3	us-gaap	Contingent Consideration Classified As Equity Fair Value Disclosure ContingentConsiderationClassifiedAsEquityFairValueDisclosure	0	USD
CY2020Q3	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	65600000	USD
CY2019Q3	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	0	USD
CY2018	us-gaap	Defined Benefit Plan Net Periodic Benefit Cost DefinedBenefitPlanNetPeriodicBenefitCost	300000	USD
CY2020Q3	us-gaap	Derivative Liabilities Noncurrent DerivativeLiabilitiesNoncurrent	23000000.0	USD
CY2019Q3	us-gaap	Derivative Liabilities Noncurrent DerivativeLiabilitiesNoncurrent	0	USD
CY2020Q3	us-gaap	Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent	11100000	USD
CY2019Q3	us-gaap	Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent	10200000	USD
CY2020Q3	us-gaap	Accrued Rent Noncurrent AccruedRentNoncurrent	0	USD
CY2019Q3	us-gaap	Accrued Rent Noncurrent AccruedRentNoncurrent	33700000	USD
CY2020Q3	us-gaap	Other Sundry Liabilities Noncurrent OtherSundryLiabilitiesNoncurrent	18000000.0	USD
CY2019Q3	us-gaap	Other Sundry Liabilities Noncurrent OtherSundryLiabilitiesNoncurrent	11700000	USD
CY2020Q3	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	303200000	USD
CY2019Q3	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	162400000	USD
CY2020Q3	us-gaap	Defined Benefit Pension Plan Current And Noncurrent Liabilities DefinedBenefitPensionPlanCurrentAndNoncurrentLiabilities	10900000	USD
CY2019Q3	us-gaap	Defined Benefit Pension Plan Current And Noncurrent Liabilities DefinedBenefitPensionPlanCurrentAndNoncurrentLiabilities	10000000.0	USD
CY2019Q3	us-gaap	Defined Benefit Plan Benefit Obligation DefinedBenefitPlanBenefitObligation	10000000.0	USD
CY2018Q3	us-gaap	Defined Benefit Plan Benefit Obligation DefinedBenefitPlanBenefitObligation	9700000	USD
CY2017Q3	us-gaap	Defined Benefit Plan Benefit Obligation DefinedBenefitPlanBenefitObligation	9900000	USD
CY2020	us-gaap	Defined Benefit Plan Service Cost DefinedBenefitPlanServiceCost	0	USD
CY2019	us-gaap	Defined Benefit Plan Service Cost DefinedBenefitPlanServiceCost	0	USD
CY2018	us-gaap	Defined Benefit Plan Service Cost DefinedBenefitPlanServiceCost	0	USD
CY2020	us-gaap	Defined Benefit Plan Interest Cost DefinedBenefitPlanInterestCost	100000	USD
CY2019	us-gaap	Defined Benefit Plan Interest Cost DefinedBenefitPlanInterestCost	200000	USD
CY2018	us-gaap	Defined Benefit Plan Interest Cost DefinedBenefitPlanInterestCost	200000	USD
CY2020	us-gaap	Defined Benefit Plan Benefit Obligation Contributions By Plan Participant DefinedBenefitPlanBenefitObligationContributionsByPlanParticipant	0	USD
CY2019	us-gaap	Defined Benefit Plan Benefit Obligation Contributions By Plan Participant DefinedBenefitPlanBenefitObligationContributionsByPlanParticipant	0	USD
CY2018	us-gaap	Defined Benefit Plan Benefit Obligation Contributions By Plan Participant DefinedBenefitPlanBenefitObligationContributionsByPlanParticipant	0	USD
CY2020	holx	Defined Benefit Plan Actuarial Net Gains Losses Net Of Tax Amount DefinedBenefitPlanActuarialNetGainsLossesNetOfTaxAmount	-500000	USD
CY2019	holx	Defined Benefit Plan Actuarial Net Gains Losses Net Of Tax Amount DefinedBenefitPlanActuarialNetGainsLossesNetOfTaxAmount	-1000000.0	USD
CY2018	holx	Defined Benefit Plan Actuarial Net Gains Losses Net Of Tax Amount DefinedBenefitPlanActuarialNetGainsLossesNetOfTaxAmount	-100000	USD
CY2020	us-gaap	Defined Benefit Plan Foreign Currency Exchange Rate Changes Benefit Obligation DefinedBenefitPlanForeignCurrencyExchangeRateChangesBenefitObligation	-700000	USD
CY2019	us-gaap	Defined Benefit Plan Foreign Currency Exchange Rate Changes Benefit Obligation DefinedBenefitPlanForeignCurrencyExchangeRateChangesBenefitObligation	600000	USD
CY2018	us-gaap	Defined Benefit Plan Foreign Currency Exchange Rate Changes Benefit Obligation DefinedBenefitPlanForeignCurrencyExchangeRateChangesBenefitObligation	200000	USD
CY2020	us-gaap	Defined Benefit Plan Benefit Obligation Benefits Paid DefinedBenefitPlanBenefitObligationBenefitsPaid	400000	USD
CY2019	us-gaap	Defined Benefit Plan Benefit Obligation Benefits Paid DefinedBenefitPlanBenefitObligationBenefitsPaid	300000	USD
CY2018	us-gaap	Defined Benefit Plan Benefit Obligation Benefits Paid DefinedBenefitPlanBenefitObligationBenefitsPaid	300000	USD
CY2020Q3	us-gaap	Defined Benefit Plan Benefit Obligation DefinedBenefitPlanBenefitObligation	10900000	USD
CY2019Q3	us-gaap	Defined Benefit Plan Benefit Obligation DefinedBenefitPlanBenefitObligation	10000000.0	USD
CY2018Q3	us-gaap	Defined Benefit Plan Benefit Obligation DefinedBenefitPlanBenefitObligation	9700000	USD
CY2020Q3	us-gaap	Defined Benefit Plan Fair Value Of Plan Assets DefinedBenefitPlanFairValueOfPlanAssets	0	USD
CY2019Q3	us-gaap	Defined Benefit Plan Fair Value Of Plan Assets DefinedBenefitPlanFairValueOfPlanAssets	0	USD
CY2018Q3	us-gaap	Defined Benefit Plan Fair Value Of Plan Assets DefinedBenefitPlanFairValueOfPlanAssets	0	USD
CY2020Q3	us-gaap	Defined Benefit Plan Funded Status Of Plan DefinedBenefitPlanFundedStatusOfPlan	-10900000	USD
CY2019Q3	us-gaap	Defined Benefit Plan Funded Status Of Plan DefinedBenefitPlanFundedStatusOfPlan	-10000000.0	USD
CY2018Q3	us-gaap	Defined Benefit Plan Funded Status Of Plan DefinedBenefitPlanFundedStatusOfPlan	-9700000	USD
CY2020	us-gaap	Defined Benefit Plan Service Cost DefinedBenefitPlanServiceCost	0	USD
CY2019	us-gaap	Defined Benefit Plan Service Cost DefinedBenefitPlanServiceCost	0	USD
CY2018	us-gaap	Defined Benefit Plan Service Cost DefinedBenefitPlanServiceCost	0	USD
CY2020	holx	Componentsof Net Periodic Benefit Cost Interestcost ComponentsofNetPeriodicBenefitCostInterestcost	100000	USD
CY2019	holx	Componentsof Net Periodic Benefit Cost Interestcost ComponentsofNetPeriodicBenefitCostInterestcost	200000	USD
CY2018	holx	Componentsof Net Periodic Benefit Cost Interestcost ComponentsofNetPeriodicBenefitCostInterestcost	200000	USD
CY2020	us-gaap	Defined Benefit Plan Expected Return On Plan Assets DefinedBenefitPlanExpectedReturnOnPlanAssets	0	USD
CY2019	us-gaap	Defined Benefit Plan Expected Return On Plan Assets DefinedBenefitPlanExpectedReturnOnPlanAssets	0	USD
CY2018	us-gaap	Defined Benefit Plan Expected Return On Plan Assets DefinedBenefitPlanExpectedReturnOnPlanAssets	0	USD
CY2020	us-gaap	Defined Benefit Plan Amortization Of Prior Service Cost Credit DefinedBenefitPlanAmortizationOfPriorServiceCostCredit	0	USD
CY2019	us-gaap	Defined Benefit Plan Amortization Of Prior Service Cost Credit DefinedBenefitPlanAmortizationOfPriorServiceCostCredit	0	USD
CY2018	us-gaap	Defined Benefit Plan Amortization Of Prior Service Cost Credit DefinedBenefitPlanAmortizationOfPriorServiceCostCredit	0	USD
CY2020	us-gaap	Defined Benefit Plan Recognized Net Gain Loss Due To Settlements And Curtailments1 DefinedBenefitPlanRecognizedNetGainLossDueToSettlementsAndCurtailments1	-200000	USD
CY2019	us-gaap	Defined Benefit Plan Recognized Net Gain Loss Due To Settlements And Curtailments1 DefinedBenefitPlanRecognizedNetGainLossDueToSettlementsAndCurtailments1	-100000	USD
CY2018	us-gaap	Defined Benefit Plan Recognized Net Gain Loss Due To Settlements And Curtailments1 DefinedBenefitPlanRecognizedNetGainLossDueToSettlementsAndCurtailments1	-100000	USD
CY2020	us-gaap	Defined Benefit Plan Net Periodic Benefit Cost DefinedBenefitPlanNetPeriodicBenefitCost	300000	USD
CY2019	us-gaap	Defined Benefit Plan Net Periodic Benefit Cost DefinedBenefitPlanNetPeriodicBenefitCost	300000	USD
CY2019	us-gaap	Defined Benefit Plan Assumptions Used Calculating Net Periodic Benefit Cost Discount Rate DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostDiscountRate	0.0110
CY2018	us-gaap	Defined Benefit Plan Assumptions Used Calculating Net Periodic Benefit Cost Discount Rate DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostDiscountRate	0.0195
CY2020	us-gaap	Defined Benefit Plan Assumptions Used Calculating Net Periodic Benefit Cost Expected Long Term Return On Assets DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostExpectedLongTermReturnOnAssets	0
CY2019	us-gaap	Defined Benefit Plan Assumptions Used Calculating Net Periodic Benefit Cost Expected Long Term Return On Assets DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostExpectedLongTermReturnOnAssets	0
CY2018	us-gaap	Defined Benefit Plan Assumptions Used Calculating Net Periodic Benefit Cost Expected Long Term Return On Assets DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostExpectedLongTermReturnOnAssets	0
CY2020	us-gaap	Defined Benefit Plan Assumptions Used Calculating Net Periodic Benefit Cost Discount Rate DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostDiscountRate	0.0080
CY2020	us-gaap	Defined Benefit Plan Assumptions Used Calculating Net Periodic Benefit Cost Rate Of Compensation Increase DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostRateOfCompensationIncrease	0
CY2019	us-gaap	Defined Benefit Plan Assumptions Used Calculating Net Periodic Benefit Cost Rate Of Compensation Increase DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostRateOfCompensationIncrease	0
CY2018	us-gaap	Defined Benefit Plan Assumptions Used Calculating Net Periodic Benefit Cost Rate Of Compensation Increase DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostRateOfCompensationIncrease	0
CY2020Q3	us-gaap	Defined Benefit Plan Pension Plans With Accumulated Benefit Obligations In Excess Of Plan Assets Aggregate Accumulated Benefit Obligation DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateAccumulatedBenefitObligation	10900000	USD
CY2019Q3	us-gaap	Defined Benefit Plan Pension Plans With Accumulated Benefit Obligations In Excess Of Plan Assets Aggregate Accumulated Benefit Obligation DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateAccumulatedBenefitObligation	10000000.0	USD
CY2019Q3	holx	Projected Benefit Obligation For Long Term Service Awards ProjectedBenefitObligationForLongTermServiceAwards	100000	USD
CY2020Q3	holx	Projected Benefit Obligation For Long Term Service Awards ProjectedBenefitObligationForLongTermServiceAwards	100000	USD
CY2020Q3	us-gaap	Gross Profit GrossProfit	931800000	USD
CY2019Q4	us-gaap	Net Income Loss NetIncomeLoss	386100000	USD
CY2020Q3	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Next Twelve Months DefinedBenefitPlanExpectedFutureBenefitPaymentsNextTwelveMonths	400000	USD
CY2020Q3	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Year Two DefinedBenefitPlanExpectedFutureBenefitPaymentsYearTwo	400000	USD
CY2020Q3	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Year Three DefinedBenefitPlanExpectedFutureBenefitPaymentsYearThree	400000	USD
CY2020Q3	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Year Four DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFour	400000	USD
CY2020Q3	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Year Five DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFive	400000	USD
CY2020Q3	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Five Fiscal Years Thereafter DefinedBenefitPlanExpectedFutureBenefitPaymentsFiveFiscalYearsThereafter	2200000	USD
CY2019Q4	us-gaap	Revenues Revenues	850500000	USD
CY2020Q1	us-gaap	Revenues Revenues	756100000	USD
CY2020Q2	us-gaap	Revenues Revenues	822900000	USD
CY2020Q3	us-gaap	Revenues Revenues	1347000000.0	USD
CY2019Q4	us-gaap	Gross Profit GrossProfit	433800000	USD
CY2020Q1	us-gaap	Gross Profit GrossProfit	395800000	USD
CY2020Q2	us-gaap	Gross Profit GrossProfit	466100000	USD
CY2020Q1	us-gaap	Net Income Loss NetIncomeLoss	96300000	USD
CY2020Q2	us-gaap	Net Income Loss NetIncomeLoss	137900000	USD
CY2018Q4	us-gaap	Gross Profit GrossProfit	434100000	USD
CY2020Q3	us-gaap	Net Income Loss NetIncomeLoss	495000000.0	USD
CY2019Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.43
CY2020Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.36
CY2020Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.53
CY2020Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.88
CY2018Q4	us-gaap	Revenues Revenues	830700000	USD
CY2019Q1	us-gaap	Revenues Revenues	818400000	USD
CY2019Q2	us-gaap	Revenues Revenues	852400000	USD
CY2019Q3	us-gaap	Revenues Revenues	865800000	USD
CY2019Q1	us-gaap	Gross Profit GrossProfit	42400000	USD
CY2019Q2	us-gaap	Gross Profit GrossProfit	444800000	USD
CY2019Q3	us-gaap	Gross Profit GrossProfit	249500000	USD
CY2018Q4	us-gaap	Net Income Loss NetIncomeLoss	98600000	USD
CY2019Q1	us-gaap	Net Income Loss NetIncomeLoss	-272600000	USD
CY2019Q2	us-gaap	Net Income Loss NetIncomeLoss	93900000	USD
CY2019Q3	us-gaap	Net Income Loss NetIncomeLoss	-123500000	USD
CY2018Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.36
CY2019Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-1.01
CY2019Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.35
CY2019Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.46
CY2019Q4	us-gaap	Impairment Of Intangible Assets Indefinitelived Excluding Goodwill ImpairmentOfIntangibleAssetsIndefinitelivedExcludingGoodwill	30200000	USD
CY2020Q1	us-gaap	Impairment Of Intangible Assets Indefinitelived Excluding Goodwill ImpairmentOfIntangibleAssetsIndefinitelivedExcludingGoodwill	443800000	USD
CY2020Q3	us-gaap	Impairment Of Intangible Assets Indefinitelived Excluding Goodwill ImpairmentOfIntangibleAssetsIndefinitelivedExcludingGoodwill	241600000	USD

Files In Submission

Name	View Source	Status
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0000859737-20-000039-index.html	Edgar Link	pending
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Financial_Report.xlsx	Edgar Link	pending
holx-20200926.htm	Edgar Link	pending
holx-20200926.xsd	Edgar Link	pending
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holx-20200926_def.xml	Edgar Link	unprocessable
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holxq4-2020ex211.htm	Edgar Link	pending
holxq4-2020ex231.htm	Edgar Link	pending
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holxq4-2020ex321.htm	Edgar Link	pending
holxq4-2020ex322.htm	Edgar Link	pending
MetaLinks.json	Edgar Link	pending
R1.htm	Edgar Link	pending
R10.htm	Edgar Link	pending
R100.htm	Edgar Link	pending
R101.htm	Edgar Link	pending
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$HOLX
HOLOGIC INC Stock $holx

2020 Q3 Form 10-K Financial Statement

#000085973720000039 Filed on November 17, 2020

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$HOLX HOLOGIC INC Stock $holx

2020 Q3 Form 10-K Financial Statement

#000085973720000039 Filed on November 17, 2020

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$HOLX
HOLOGIC INC Stock $holx