$HSIC
HENRY SCHEIN INC Stock $hsic

$hsic Overview Financials Valuation SEC Filings Company Website

2019 Q4 Form 10-K Financial Statement

#000100022820000018 Filed on February 20, 2020

Income Statement

Concept	2019 Q4	2018 Q4	2018 Q3
Revenue	$2.669B	$3.375B	$3.280B
YoY Change	-20.92%	1.72%	3.75%
Cost Of Revenue	$1.858B	$1.722B	$1.633B
YoY Change	7.94%	-28.77%	-29.76%
Gross Profit	$810.6M	$750.9M	$722.4M
YoY Change	7.95%	-16.65%	-13.6%
Gross Profit Margin	30.37%	22.25%	22.03%
Selling, General & Admin	$615.3M	$558.3M	$552.1M
YoY Change	10.21%	-15.38%	-11.32%
% of Gross Profit	75.91%	74.35%	76.42%
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$48.70M	$36.70M	$35.80M
YoY Change	32.7%	-29.15%	-25.1%
% of Gross Profit	6.01%	4.89%	4.96%
Operating Expenses	$615.4M	$558.4M	$722.6M
YoY Change	10.21%	-15.37%	16.08%
Operating Profit	$196.3M	$158.0M	$123.3M
YoY Change	24.26%	-34.49%	-42.28%
Interest Expense	-$5.900M	-$17.10M	$20.43M
YoY Change	-65.5%	40.16%	52.14%
% of Operating Profit	-3.01%	-10.82%	16.57%
Other Income/Expense, Net	-$900.0K	-$1.500M	-$586.0K
YoY Change	-40.0%	66.67%	202.06%
Pretax Income	$189.5M	$139.5M	$106.2M
YoY Change	35.84%	-38.82%	-48.13%
Income Tax	$42.20M	$32.50M	$16.63M
% Of Pretax Income	22.27%	23.3%	15.66%
Net Earnings	$330.6M	$117.8M	$90.77M
YoY Change	180.71%	-1479.93%	-33.28%
Net Earnings / Revenue	12.39%	3.49%	2.77%
Basic Earnings Per Share	$2.27	$0.78	$0.60
Diluted Earnings Per Share	$2.25	$0.77	$0.59
COMMON SHARES
Basic Shares Outstanding	146.7M shares	152.4M shares	152.5M shares
Diluted Shares Outstanding			153.6M shares

Balance Sheet

Concept	2019 Q4	2018 Q4	2018 Q3
SHORT-TERM ASSETS
Cash & Short-Term Investments	$106.1M	$56.90M	$119.7M
YoY Change	86.47%	-67.43%	60.24%
Cash & Equivalents	$106.1M	$56.89M	$119.7M
Short-Term Investments
Other Short-Term Assets	$445.4M	$1.534B	$513.7M
YoY Change	-70.96%	237.29%	24.41%
Inventory	$1.429B	$1.416B	$1.933B
Prepaid Expenses
Receivables	$1.246B	$1.169B	$1.628B
Other Receivables	$0.00	$0.00	$0.00
Total Short-Term Assets	$3.227B	$4.175B	$4.194B
YoY Change	-22.72%	2.18%	10.88%
LONG-TERM ASSETS
Property, Plant & Equipment	$329.6M	$314.2M	$374.1M
YoY Change	4.91%	-16.21%	3.41%
Goodwill	$2.462B	$2.081B	$2.686B
YoY Change	18.33%	33.95%	20.72%
Intangibles	$572.9M	$376.0M	$618.2M
YoY Change	52.35%	-43.85%	-7.32%
Long-Term Investments	$327.9M	$420.4M	$518.4M
YoY Change	-22.0%	-2.69%	9.62%
Other Assets	$0.00	$1.134B
YoY Change	-100.0%
Total Long-Term Assets	$3.925B	$4.325B	$4.196B
YoY Change	-9.26%	14.49%	13.29%
TOTAL ASSETS
Total Short-Term Assets	$3.227B	$4.175B	$4.194B
Total Long-Term Assets	$3.925B	$4.325B	$4.196B
Total Assets	$7.151B	$8.501B	$8.390B
YoY Change	-15.87%	8.09%	12.07%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$880.3M	$785.8M	$1.136B
YoY Change	12.03%	-31.85%	10.4%
Accrued Expenses	$859.1M	$741.1M	$756.1M
YoY Change	15.92%	1.69%	26.06%
Deferred Revenue	$70.80M	$65.30M	$73.70M
YoY Change	8.42%	-23.8%
Short-Term Debt	$23.98M	$951.5M	$1.145B
YoY Change	-97.48%	28.28%	98.25%
Long-Term Debt Due	$109.8M	$8.300M	$12.50M
YoY Change	1222.89%	-50.3%	-27.33%
Total Short-Term Liabilities	$2.038B	$3.219B	$3.230B
YoY Change	-36.67%	13.78%	32.52%
LONG-TERM LIABILITIES
Long-Term Debt	$622.9M	$980.3M	$1.000B
YoY Change	-36.46%	7.99%	23.86%
Other Long-Term Liabilities	$331.2M	$357.7M	$415.0M
YoY Change	-7.43%	-14.83%	42.05%
Total Long-Term Liabilities	$331.2M	$357.7M	$415.0M
YoY Change	-7.43%	-14.83%	42.05%
TOTAL LIABILITIES
Total Short-Term Liabilities	$2.038B	$3.219B	$3.230B
Total Long-Term Liabilities	$331.2M	$357.7M	$415.0M
Total Liabilities	$3.234B	$4.647B	$4.691B
YoY Change	-30.41%	10.44%	25.81%
SHAREHOLDERS EQUITY
Retained Earnings	$3.116B	$3.209B	$3.191B
YoY Change	-2.88%	9.04%	0.84%
Common Stock
YoY Change
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$2.998B	$2.961B	$2.973B
YoY Change
Total Liabilities & Shareholders Equity	$7.151B	$8.501B	$8.390B
YoY Change	-15.87%	8.09%	12.07%

Cashflow Statement

Concept	2019 Q4	2018 Q4	2018 Q3
OPERATING ACTIVITIES
Net Income	$330.6M	$117.8M	$90.77M
YoY Change	180.71%	-1479.93%	-33.28%
Depreciation, Depletion And Amortization	$48.70M	$36.70M	$35.80M
YoY Change	32.7%	-29.15%	-25.1%
Cash From Operating Activities	$292.6M	$290.9M	$174.4M
YoY Change	0.58%	22.23%	-23.74%
INVESTING ACTIVITIES
Capital Expenditures	-$27.20M	-$22.00M	-$19.10M
YoY Change	23.64%	-16.03%	-3.05%
Acquisitions
YoY Change
Other Investing Activities	$296.3M	-$24.70M	-$52.60M
YoY Change	-1299.6%	-625.53%	-61.63%
Cash From Investing Activities	$269.0M	-$46.60M	-$71.80M
YoY Change	-677.25%	116.74%	-54.18%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	-536.8M	-285.3M	-96.20M
YoY Change	88.15%	121.68%	41.06%
NET CHANGE
Cash From Operating Activities	292.6M	290.9M	174.4M
Cash From Investing Activities	269.0M	-46.60M	-71.80M
Cash From Financing Activities	-536.8M	-285.3M	-96.20M
Net Change In Cash	24.80M	-41.00M	6.400M
YoY Change	-160.49%	-146.7%	68.42%
FREE CASH FLOW
Cash From Operating Activities	$292.6M	$290.9M	$174.4M
Capital Expenditures	-$27.20M	-$22.00M	-$19.10M
Free Cash Flow	$319.8M	$312.9M	$193.5M
YoY Change	2.21%	18.43%	-22.1%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2019	dei	Entity File Number EntityFileNumber	0-27078
CY2019	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	DE
CY2019	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	11-3136595
CY2019	dei	Entity Address Address Line1 EntityAddressAddressLine1	135 Duryea Road
CY2019	dei	Entity Address City Or Town EntityAddressCityOrTown	Melville
CY2019	dei	Amendment Flag AmendmentFlag	false
CY2019	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2019
CY2019	us-gaap	Maximum Length Of Time Foreign Currency Cash Flow Hedge MaximumLengthOfTimeForeignCurrencyCashFlowHedge	P18M
CY2019Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	60002000	USD
CY2018Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	53121000	USD
CY2019Q4	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0.01
CY2018Q4	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0.01
CY2019Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	1000000	shares
CY2018Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	1000000	shares
CY2018Q4	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	0	shares
CY2019Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2018Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2019Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.01
CY2018Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.01
CY2019Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	480000000	shares
CY2018Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	480000000	shares
CY2019Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	143353459	shares
CY2018Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	151401668	shares
CY2019	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2019	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	Yes
CY2019	dei	Entity Central Index Key EntityCentralIndexKey	0001000228
CY2019	dei	Security Exchange Name SecurityExchangeName	NASDAQ
CY2019	dei	Entity Registrant Name EntityRegistrantName	HENRY SCHEIN INC
CY2019	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2019	dei	Entity Interactive Data Current EntityInteractiveDataCurrent	Yes
CY2019	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2019	dei	Document Annual Report DocumentAnnualReport	true
CY2019	dei	Document Transition Report DocumentTransitionReport	false
CY2019	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-28
CY2019Q4	us-gaap	Tax Cuts And Jobs Act Of2017 Accounting Complete TaxCutsAndJobsActOf2017AccountingComplete	true
CY2019	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	51776000	USD
CY2018	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-188898000	USD
CY2017	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	224554000	USD
CY2019	dei	Document Type DocumentType	10-K
CY2019	dei	Document Period End Date DocumentPeriodEndDate	2019-12-28
CY2019	dei	Entity Address State Or Province EntityAddressStateOrProvince	NY
CY2019	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	11747
CY2019	dei	City Area Code CityAreaCode	631
CY2019	dei	Local Phone Number LocalPhoneNumber	843-5500
CY2019	dei	Security12b Title Security12bTitle	Common Stock, par value $.01 per share
CY2019Q4	us-gaap	Liabilities Of Disposal Group Including Discontinued Operation Noncurrent LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationNoncurrent	0	USD
CY2017	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Adjustment Net Of Tax Portion Attributable To Noncontrolling Interest OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToNoncontrollingInterest	8113000	USD
CY2019	dei	Trading Symbol TradingSymbol	HSIC
CY2019	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
CY2019	dei	Entity Small Business EntitySmallBusiness	false
CY2019	dei	Entity Emerging Growth Company EntityEmergingGrowthCompany	false
CY2019	dei	Entity Shell Company EntityShellCompany	false
CY2019Q2	dei	Entity Public Float EntityPublicFloat	10236712000	USD
CY2020Q1	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	143390505	shares
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	106097000	USD
CY2018Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	56885000	USD
CY2019Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	1246246000	USD
CY2018Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	1168776000	USD
CY2019Q4	us-gaap	Inventory Net InventoryNet	1428799000	USD
CY2018Q4	us-gaap	Inventory Net InventoryNet	1415512000	USD
CY2019Q4	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	445360000	USD
CY2018Q4	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	451033000	USD
CY2019Q4	us-gaap	Assets Of Disposal Group Including Discontinued Operation Current AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent	0	USD
CY2018Q4	us-gaap	Assets Of Disposal Group Including Discontinued Operation Current AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent	1083014000	USD
CY2019Q4	us-gaap	Assets Current AssetsCurrent	3226502000	USD
CY2018Q4	us-gaap	Assets Current AssetsCurrent	4175220000	USD
CY2019Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	329645000	USD
CY2018Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	314221000	USD
CY2019Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	231662000	USD
CY2018Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	0	USD
CY2019Q4	us-gaap	Goodwill Goodwill	2462495000	USD
CY2018Q4	us-gaap	Goodwill Goodwill	2081029000	USD
CY2019Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	572878000	USD
CY2018Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	376031000	USD
CY2019Q4	us-gaap	Investments And Other Noncurrent Assets InvestmentsAndOtherNoncurrentAssets	327919000	USD
CY2018Q4	us-gaap	Investments And Other Noncurrent Assets InvestmentsAndOtherNoncurrentAssets	420367000	USD
CY2019Q4	us-gaap	Disposal Group Including Discontinued Operation Assets Noncurrent DisposalGroupIncludingDiscontinuedOperationAssetsNoncurrent	0	USD
CY2018Q4	us-gaap	Disposal Group Including Discontinued Operation Assets Noncurrent DisposalGroupIncludingDiscontinuedOperationAssetsNoncurrent	1133659000	USD
CY2019Q4	us-gaap	Assets Assets	7151101000	USD
CY2018Q4	us-gaap	Assets Assets	8500527000	USD
CY2019Q4	us-gaap	Accounts Payable Current AccountsPayableCurrent	880266000	USD
CY2018Q4	us-gaap	Accounts Payable Current AccountsPayableCurrent	785756000	USD
CY2019Q4	us-gaap	Short Term Borrowings ShortTermBorrowings	23975000	USD
CY2018Q4	us-gaap	Short Term Borrowings ShortTermBorrowings	951458000	USD
CY2019Q4	us-gaap	Long Term Debt And Capital Lease Obligations Current LongTermDebtAndCapitalLeaseObligationsCurrent	109849000	USD
CY2018Q4	us-gaap	Long Term Debt And Capital Lease Obligations Current LongTermDebtAndCapitalLeaseObligationsCurrent	8280000	USD
CY2019Q4	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	65349000	USD
CY2018Q4	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	0	USD
CY2019Q4	us-gaap	Liabilities Of Disposal Group Including Discontinued Operation Current LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrent	0	USD
CY2018Q4	us-gaap	Liabilities Of Disposal Group Including Discontinued Operation Current LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrent	577607000	USD
CY2019Q4	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	265206000	USD
CY2018Q4	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	242876000	USD
CY2019Q4	us-gaap	Taxes Payable Current TaxesPayableCurrent	165171000	USD
CY2018Q4	us-gaap	Taxes Payable Current TaxesPayableCurrent	154613000	USD
CY2019Q4	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	528553000	USD
CY2018Q4	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	498237000	USD
CY2019Q4	us-gaap	Liabilities Current LiabilitiesCurrent	2038369000	USD
CY2018Q4	us-gaap	Liabilities Current LiabilitiesCurrent	3218827000	USD
CY2019Q4	us-gaap	Long Term Debt And Capital Lease Obligations LongTermDebtAndCapitalLeaseObligations	622908000	USD
CY2018Q4	us-gaap	Long Term Debt And Capital Lease Obligations LongTermDebtAndCapitalLeaseObligations	980344000	USD
CY2019Q4	us-gaap	Deferred Income Tax Liabilities Net DeferredIncomeTaxLiabilitiesNet	64989000	USD
CY2018Q4	us-gaap	Deferred Income Tax Liabilities Net DeferredIncomeTaxLiabilitiesNet	27218000	USD
CY2019Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	176267000	USD
CY2018Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	0	USD
CY2019Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	331173000	USD
CY2018Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	357741000	USD
CY2018Q4	us-gaap	Liabilities Of Disposal Group Including Discontinued Operation Noncurrent LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationNoncurrent	62453000	USD
CY2019Q4	us-gaap	Liabilities Liabilities	3233706000	USD
CY2018Q4	us-gaap	Liabilities Liabilities	4646583000	USD
CY2017	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	8883438000	USD
CY2019	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	6894917000	USD
CY2018	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	6506856000	USD
CY2017	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	6136776000	USD
CY2019	us-gaap	Gross Profit GrossProfit	3090886000	USD
CY2018	us-gaap	Gross Profit GrossProfit	2910747000	USD
CY2017	us-gaap	Gross Profit GrossProfit	2746662000	USD
CY2019	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	2357920000	USD
CY2018	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	2217273000	USD
CY2017	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	2071576000	USD
CY2019	us-gaap	Gain Loss Related To Litigation Settlement GainLossRelatedToLitigationSettlement	0	USD
CY2018	us-gaap	Gain Loss Related To Litigation Settlement GainLossRelatedToLitigationSettlement	38488000	USD
CY2017	us-gaap	Gain Loss Related To Litigation Settlement GainLossRelatedToLitigationSettlement	5325000	USD
CY2019	us-gaap	Restructuring Settlement And Impairment Provisions RestructuringSettlementAndImpairmentProvisions	14705000	USD
CY2018	us-gaap	Restructuring Settlement And Impairment Provisions RestructuringSettlementAndImpairmentProvisions	54367000	USD
CY2017	us-gaap	Restructuring Settlement And Impairment Provisions RestructuringSettlementAndImpairmentProvisions	0	USD
CY2019	us-gaap	Operating Income Loss OperatingIncomeLoss	718261000	USD
CY2019Q4	us-gaap	Temporary Equity Carrying Amount Including Portion Attributable To Noncontrolling Interests TemporaryEquityCarryingAmountIncludingPortionAttributableToNoncontrollingInterests	287258000	USD
CY2018Q4	us-gaap	Temporary Equity Carrying Amount Including Portion Attributable To Noncontrolling Interests TemporaryEquityCarryingAmountIncludingPortionAttributableToNoncontrollingInterests	219724000	USD
CY2019Q4	hsic	Redeemable Noncontrolling Interests From Discontinued Operations RedeemableNoncontrollingInterestsFromDiscontinuedOperations	0	USD
CY2018Q4	hsic	Redeemable Noncontrolling Interests From Discontinued Operations RedeemableNoncontrollingInterestsFromDiscontinuedOperations	92432000	USD
CY2019Q4	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	0	shares
CY2019Q4	us-gaap	Preferred Stock Value Outstanding PreferredStockValueOutstanding	0	USD
CY2018Q4	us-gaap	Preferred Stock Value Outstanding PreferredStockValueOutstanding	0	USD
CY2019Q4	us-gaap	Common Stock Value Outstanding CommonStockValueOutstanding	1434000	USD
CY2018Q4	us-gaap	Common Stock Value Outstanding CommonStockValueOutstanding	1514000	USD
CY2019Q4	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	47768000	USD
CY2018Q4	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	0	USD
CY2019Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	3116215000	USD
CY2018Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	3208589000	USD
CY2019Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-167373000	USD
CY2018Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-248771000	USD
CY2019Q4	us-gaap	Stockholders Equity StockholdersEquity	2998044000	USD
CY2018Q4	us-gaap	Stockholders Equity StockholdersEquity	2961332000	USD
CY2019Q4	us-gaap	Minority Interest MinorityInterest	632093000	USD
CY2018Q4	us-gaap	Minority Interest MinorityInterest	580456000	USD
CY2019Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	3630137000	USD
CY2018Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	3541788000	USD
CY2019Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	7151101000	USD
CY2018Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	8500527000	USD
CY2019	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	9985803000	USD
CY2018	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	9417603000	USD
CY2018	us-gaap	Operating Income Loss OperatingIncomeLoss	600619000	USD
CY2017	us-gaap	Operating Income Loss OperatingIncomeLoss	669761000	USD
CY2019	us-gaap	Investment Income Interest InvestmentIncomeInterest	15757000	USD
CY2018	us-gaap	Investment Income Interest InvestmentIncomeInterest	15491000	USD
CY2017	us-gaap	Investment Income Interest InvestmentIncomeInterest	12438000	USD
CY2019	us-gaap	Interest Expense InterestExpense	50792000	USD
CY2018	us-gaap	Interest Expense InterestExpense	76016000	USD
CY2017	us-gaap	Interest Expense InterestExpense	51066000	USD
CY2019	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-2919000	USD
CY2018	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-3258000	USD
CY2017	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-1339000	USD
CY2019	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	147817000	shares
CY2018	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	152656000	shares
CY2017	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	156787000	shares
CY2019	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	149257000	shares
CY2017	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.57
CY2018	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	3.49
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	680307000	USD
CY2018	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	536836000	USD
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	159515000	USD
CY2018	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	107432000	USD
CY2017	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	308975000	USD
CY2019	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	17900000	USD
CY2018	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	21037000	USD
CY2017	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	0.72
CY2019	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	-0.04
CY2018	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	0.68
CY2017	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	0.72
CY2019	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	4.70
CY2018	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	2.80
CY2017	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	1.85
CY2019	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	-0.04
CY2018	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	0.69
CY2017	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	15293000	USD
CY2019	us-gaap	Equity Method Investment Realized Gain Loss On Disposal EquityMethodInvestmentRealizedGainLossOnDisposal	186769000	USD
CY2018	us-gaap	Equity Method Investment Realized Gain Loss On Disposal EquityMethodInvestmentRealizedGainLossOnDisposal	0	USD
CY2017	us-gaap	Equity Method Investment Realized Gain Loss On Disposal EquityMethodInvestmentRealizedGainLossOnDisposal	-17636000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	725461000	USD
CY2018	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	450441000	USD
CY2017	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	318476000	USD
CY2019	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	-6323000	USD
CY2018	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	111685000	USD
CY2017	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	140817000	USD
CY2019	us-gaap	Profit Loss ProfitLoss	719138000	USD
CY2018	us-gaap	Profit Loss ProfitLoss	562126000	USD
CY2017	us-gaap	Profit Loss ProfitLoss	459293000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Attributable To Noncontrolling Entity IncomeLossFromContinuingOperationsAttributableToNoncontrollingEntity	24770000	USD
CY2018	us-gaap	Income Loss From Continuing Operations Attributable To Noncontrolling Entity IncomeLossFromContinuingOperationsAttributableToNoncontrollingEntity	19724000	USD
CY2017	us-gaap	Income Loss From Continuing Operations Attributable To Noncontrolling Entity IncomeLossFromContinuingOperationsAttributableToNoncontrollingEntity	25304000	USD
CY2019	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Noncontrolling Interest IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToNoncontrollingInterest	366000	USD
CY2018	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Noncontrolling Interest IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToNoncontrollingInterest	-6521000	USD
CY2017	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Noncontrolling Interest IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToNoncontrollingInterest	-27690000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	694734000	USD
CY2018	us-gaap	Net Income Loss NetIncomeLoss	535881000	USD
CY2017	us-gaap	Net Income Loss NetIncomeLoss	406299000	USD
CY2019	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	700691000	USD
CY2018	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	430717000	USD
CY2017	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	293172000	USD
CY2019	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity	-5957000	USD
CY2018	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity	105164000	USD
CY2017	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity	113127000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	694734000	USD
CY2018	us-gaap	Net Income Loss NetIncomeLoss	535881000	USD
CY2017	us-gaap	Net Income Loss NetIncomeLoss	406299000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	4.74
CY2018	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	2.82
CY2017	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	1.87
CY2019	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	4.69
CY2018	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	3.51
CY2017	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.59
CY2019	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	4.65
CY2018	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	153707000	shares
CY2017	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	158208000	shares
CY2019	us-gaap	Profit Loss ProfitLoss	719138000	USD
CY2017	us-gaap	Profit Loss ProfitLoss	459293000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	-4070000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	-136356000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax	-3876000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax	626000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax	-729000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	12000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	-3000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	-3000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	5924000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	-3033000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-132700000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	195087000	USD
CY2019	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	705280000	USD
CY2018	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	429426000	USD
CY2017	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	654380000	USD
CY2019	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	24404000	USD
CY2018	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	26245000	USD
CY2017	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	52994000	USD
CY2019	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Adjustment Net Of Tax Portion Attributable To Noncontrolling Interest OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToNoncontrollingInterest	-1848000	USD
CY2018	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Adjustment Net Of Tax Portion Attributable To Noncontrolling Interest OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToNoncontrollingInterest	-13996000	USD
CY2019	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	22556000	USD
CY2017	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	61107000	USD
CY2019	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	682724000	USD
CY2018	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	417177000	USD
CY2017	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	593273000	USD
CY2016Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	2800804000	USD
CY2017	us-gaap	Temporary Equity Net Income TemporaryEquityNetIncome	52203000	USD
CY2017	us-gaap	Net Income Loss Including Portion Attributable To Nonredeemable Noncontrolling Interest NetIncomeLossIncludingPortionAttributableToNonredeemableNoncontrollingInterest	407090000	USD
CY2017	hsic	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax Excluding Portion Attributable To Redeemable Noncontrolling Interest OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxExcludingPortionAttributableToRedeemableNoncontrollingInterest	184425000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationTax	-786000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax	-729000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesTax	-1000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	-3000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax	-314000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	-3933000	USD
CY2017	us-gaap	Minority Interest Decrease From Distributions To Noncontrolling Interest Holders MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders	546000	USD
CY2017	us-gaap	Stockholders Equity Other StockholdersEquityOther	-399000	USD
CY2017	hsic	Noncontrolling Interest Decrease From Purchase Of Interests NoncontrollingInterestDecreaseFromPurchaseOfInterests	-4150000	USD
CY2017	hsic	Changes In Fair Value Of Redeemable Securities ChangesInFairValueOfRedeemableSecurities	-162729000	USD
CY2017	hsic	Initial Noncontrolling Interests And Adjustments Related To Business Acquisitions InitialNoncontrollingInterestsAndAdjustmentsRelatedToBusinessAcquisitions	8050000	USD
CY2017	us-gaap	Stock Repurchased And Retired During Period Value StockRepurchasedAndRetiredDuringPeriodValue	450000000	USD
CY2017	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	5266000	USD
CY2017	us-gaap	Adjustments Related To Tax Withholding For Share Based Compensation AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation	44776000	USD
CY2017	hsic	Adjustments To Additional Paid In Capital Share Based Compensation Other Longterm Incentive Plans Settled In Cash AdjustmentsToAdditionalPaidInCapitalShareBasedCompensationOtherLongtermIncentivePlansSettledInCash	599000	USD
CY2017	hsic	Deferred Taxes Purchases Of Noncontrolling Interest In Certain Subsidiaries DeferredTaxesPurchasesOfNoncontrollingInterestInCertainSubsidiaries	35681000	USD
CY2017	hsic	Reclassification Of Additional Paid In Capital To Retained Earnings ReclassificationOfAdditionalPaidInCapitalToRetainedEarnings	0	USD
CY2017Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	2824410000	USD
CY2018Q4	us-gaap	Cumulative Effect Of New Accounting Principle In Period Of Adoption CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption	2594000	USD
CY2018	us-gaap	Temporary Equity Net Income TemporaryEquityNetIncome	21848000	USD
CY2018	us-gaap	Net Income Loss Including Portion Attributable To Nonredeemable Noncontrolling Interest NetIncomeLossIncludingPortionAttributableToNonredeemableNoncontrollingInterest	540278000	USD
CY2018	hsic	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax Excluding Portion Attributable To Redeemable Noncontrolling Interest OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxExcludingPortionAttributableToRedeemableNoncontrollingInterest	-123325000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax	626000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesTax	0	USD
CY2018	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	-3000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax	1179000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	-3033000	USD
CY2018	us-gaap	Minority Interest Decrease From Distributions To Noncontrolling Interest Holders MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders	656000	USD
CY2018	us-gaap	Stockholders Equity Other StockholdersEquityOther	-694000	USD
CY2018	hsic	Noncontrolling Interest Decrease From Purchase Of Interests NoncontrollingInterestDecreaseFromPurchaseOfInterests	214000	USD
CY2018	hsic	Changes In Fair Value Of Redeemable Securities ChangesInFairValueOfRedeemableSecurities	-148919000	USD
CY2018	hsic	Initial Noncontrolling Interests And Adjustments Related To Business Acquisitions InitialNoncontrollingInterestsAndAdjustmentsRelatedToBusinessAcquisitions	564270000	USD
CY2018	us-gaap	Stock Repurchased And Retired During Period Value StockRepurchasedAndRetiredDuringPeriodValue	200000000	USD
CY2018	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	36240000	USD
CY2018	us-gaap	Adjustments Related To Tax Withholding For Share Based Compensation AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation	18143000	USD
CY2018	hsic	Adjustments To Additional Paid In Capital Share Based Compensation Other Longterm Incentive Plans Settled In Cash AdjustmentsToAdditionalPaidInCapitalShareBasedCompensationOtherLongtermIncentivePlansSettledInCash	727000	USD
CY2018	hsic	Deferred Taxes Purchases Of Noncontrolling Interest In Certain Subsidiaries DeferredTaxesPurchasesOfNoncontrollingInterestInCertainSubsidiaries	58554000	USD
CY2018	hsic	Reclassification Of Additional Paid In Capital To Retained Earnings ReclassificationOfAdditionalPaidInCapitalToRetainedEarnings	0	USD
CY2018Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	3541788000	USD
CY2019Q4	us-gaap	Cumulative Effect Of New Accounting Principle In Period Of Adoption CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption	-274000	USD
CY2019	us-gaap	Net Income Loss Including Portion Attributable To Nonredeemable Noncontrolling Interest NetIncomeLossIncludingPortionAttributableToNonredeemableNoncontrollingInterest	704666000	USD
CY2019	hsic	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax Excluding Portion Attributable To Redeemable Noncontrolling Interest OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxExcludingPortionAttributableToRedeemableNoncontrollingInterest	-2327000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationTax	-1035000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax	-3876000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesTax	2000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	12000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax	1806000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	5924000	USD
CY2019	us-gaap	Minority Interest Decrease From Distributions To Noncontrolling Interest Holders MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders	535000	USD
CY2019	us-gaap	Stockholders Equity Other StockholdersEquityOther	3000	USD
CY2019	hsic	Changes In Fair Value Of Redeemable Securities ChangesInFairValueOfRedeemableSecurities	7300000	USD
CY2019	hsic	Initial Noncontrolling Interests And Adjustments Related To Business Acquisitions InitialNoncontrollingInterestsAndAdjustmentsRelatedToBusinessAcquisitions	42345000	USD
CY2019	hsic	Adjustment To Stock For Spin Off Transaction Value AdjustmentToStockForSpinOffTransactionValue	1000	USD
CY2019	us-gaap	Stock Repurchased And Retired During Period Value StockRepurchasedAndRetiredDuringPeriodValue	525000000	USD
CY2019	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	34000	USD
CY2019	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	45245000	USD
CY2019	hsic	Adjustments To Additional Paid In Capital Share Based Compensation Other Longterm Incentive Plans Settled In Cash AdjustmentsToAdditionalPaidInCapitalShareBasedCompensationOtherLongtermIncentivePlansSettledInCash	-160000	USD
CY2019	hsic	Adjustment To Additional Paid In Capital Sale Of Stock Related To Spin Off Transaction AdjustmentToAdditionalPaidInCapitalSaleOfStockRelatedToSpinOffTransaction	361090000	USD
CY2019	hsic	Deferred Taxes Purchases Of Noncontrolling Interest In Certain Subsidiaries DeferredTaxesPurchasesOfNoncontrollingInterestInCertainSubsidiaries	-523720000	USD
CY2019	hsic	Reclassification Of Additional Paid In Capital To Retained Earnings ReclassificationOfAdditionalPaidInCapitalToRetainedEarnings	0	USD
CY2019Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	3630137000	USD
CY2019	us-gaap	Profit Loss ProfitLoss	719138000	USD
CY2018	us-gaap	Profit Loss ProfitLoss	562126000	USD
CY2017	us-gaap	Profit Loss ProfitLoss	459293000	USD
CY2019	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	-6323000	USD
CY2018	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	111685000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax	-314000	USD
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	159515000	USD
CY2017	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	140817000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	725461000	USD
CY2018	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	450441000	USD
CY2017	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	318476000	USD
CY2019	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	184942000	USD
CY2018	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	143630000	USD
CY2017	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	133855000	USD
CY2019	us-gaap	Gain Loss On Sale Of Stock In Subsidiary Or Equity Method Investee GainLossOnSaleOfStockInSubsidiaryOrEquityMethodInvestee	250167000	USD
CY2018	us-gaap	Gain Loss On Sale Of Stock In Subsidiary Or Equity Method Investee GainLossOnSaleOfStockInSubsidiaryOrEquityMethodInvestee	0	USD
CY2017	us-gaap	Gain Loss On Sale Of Stock In Subsidiary Or Equity Method Investee GainLossOnSaleOfStockInSubsidiaryOrEquityMethodInvestee	-17636000	USD
CY2019	us-gaap	Share Based Compensation ShareBasedCompensation	44920000	USD
CY2018	us-gaap	Share Based Compensation ShareBasedCompensation	32621000	USD
CY2017	us-gaap	Share Based Compensation ShareBasedCompensation	36845000	USD
CY2019	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	12612000	USD
CY2018	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	14384000	USD
CY2017	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	7915000	USD
CY2019	us-gaap	Deferred Income Taxes And Tax Credits DeferredIncomeTaxesAndTaxCredits	-4057000	USD
CY2018	us-gaap	Deferred Income Taxes And Tax Credits DeferredIncomeTaxesAndTaxCredits	-36007000	USD
CY2017	us-gaap	Deferred Income Taxes And Tax Credits DeferredIncomeTaxesAndTaxCredits	-1773000	USD
CY2019	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	17900000	USD
CY2018	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	21037000	USD
CY2017	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	15293000	USD
CY2019	us-gaap	Equity Method Investment Dividends Or Distributions EquityMethodInvestmentDividendsOrDistributions	71469000	USD
CY2018	us-gaap	Equity Method Investment Dividends Or Distributions EquityMethodInvestmentDividendsOrDistributions	20386000	USD
CY2017	us-gaap	Equity Method Investment Dividends Or Distributions EquityMethodInvestmentDividendsOrDistributions	20895000	USD
CY2019	hsic	Adjustment For Changes In Unrecognized Tax Benefits AdjustmentForChangesInUnrecognizedTaxBenefits	1941000	USD
CY2018	hsic	Adjustment For Changes In Unrecognized Tax Benefits AdjustmentForChangesInUnrecognizedTaxBenefits	-1169000	USD
CY2017	hsic	Adjustment For Changes In Unrecognized Tax Benefits AdjustmentForChangesInUnrecognizedTaxBenefits	-2208000	USD
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Tax Cuts And Jobs Act Of2017 Transition Tax On Accumulated Foreign Earnings Amount EffectiveIncomeTaxRateReconciliationTaxCutsAndJobsActOf2017TransitionTaxOnAccumulatedForeignEarningsAmount	0	USD
CY2018	us-gaap	Effective Income Tax Rate Reconciliation Tax Cuts And Jobs Act Of2017 Transition Tax On Accumulated Foreign Earnings Amount EffectiveIncomeTaxRateReconciliationTaxCutsAndJobsActOf2017TransitionTaxOnAccumulatedForeignEarningsAmount	-10000000	USD
CY2017	us-gaap	Effective Income Tax Rate Reconciliation Tax Cuts And Jobs Act Of2017 Transition Tax On Accumulated Foreign Earnings Amount EffectiveIncomeTaxRateReconciliationTaxCutsAndJobsActOf2017TransitionTaxOnAccumulatedForeignEarningsAmount	140000000	USD
CY2019	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-5684000	USD
CY2018	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-369000	USD
CY2017	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-9850000	USD
CY2019	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	72689000	USD
CY2018	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	127201000	USD
CY2017	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	128498000	USD
CY2019	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	-14702000	USD
CY2018	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	41042000	USD
CY2017	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	143155000	USD
CY2019	us-gaap	Increase Decrease In Other Current Assets IncreaseDecreaseInOtherCurrentAssets	57291000	USD
CY2018	us-gaap	Increase Decrease In Other Current Assets IncreaseDecreaseInOtherCurrentAssets	165645000	USD
CY2017	us-gaap	Increase Decrease In Other Current Assets IncreaseDecreaseInOtherCurrentAssets	101024000	USD
CY2019	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	160851000	USD
CY2018	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	191225000	USD
CY2017	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	81514000	USD
CY2019	us-gaap	Net Cash Provided By Used In Operating Activities Continuing Operations NetCashProvidedByUsedInOperatingActivitiesContinuingOperations	820478000	USD
CY2018	us-gaap	Net Cash Provided By Used In Operating Activities Continuing Operations NetCashProvidedByUsedInOperatingActivitiesContinuingOperations	450955000	USD
CY2017	us-gaap	Net Cash Provided By Used In Operating Activities Continuing Operations NetCashProvidedByUsedInOperatingActivitiesContinuingOperations	375035000	USD
CY2019	us-gaap	Cash Provided By Used In Operating Activities Discontinued Operations CashProvidedByUsedInOperatingActivitiesDiscontinuedOperations	-166391000	USD
CY2018	us-gaap	Cash Provided By Used In Operating Activities Discontinued Operations CashProvidedByUsedInOperatingActivitiesDiscontinuedOperations	233751000	USD
CY2017	us-gaap	Cash Provided By Used In Operating Activities Discontinued Operations CashProvidedByUsedInOperatingActivitiesDiscontinuedOperations	170480000	USD
CY2017	us-gaap	Proceeds From Contributions From Affiliates ProceedsFromContributionsFromAffiliates	0	USD
CY2019	us-gaap	Proceeds From Payments To Minority Shareholders ProceedsFromPaymentsToMinorityShareholders	51498000	USD
CY2018	us-gaap	Proceeds From Payments To Minority Shareholders ProceedsFromPaymentsToMinorityShareholders	-7351000	USD
CY2017	us-gaap	Proceeds From Payments To Minority Shareholders ProceedsFromPaymentsToMinorityShareholders	-8673000	USD
CY2019	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	654087000	USD
CY2018	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	684706000	USD
CY2017	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	545515000	USD
CY2019	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	76219000	USD
CY2018	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	71283000	USD
CY2017	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	62404000	USD
CY2019	us-gaap	Payments To Acquire Businesses And Interest In Affiliates PaymentsToAcquireBusinessesAndInterestInAffiliates	655879000	USD
CY2018	us-gaap	Payments To Acquire Businesses And Interest In Affiliates PaymentsToAcquireBusinessesAndInterestInAffiliates	53240000	USD
CY2017	us-gaap	Payments To Acquire Businesses And Interest In Affiliates PaymentsToAcquireBusinessesAndInterestInAffiliates	181415000	USD
CY2019	us-gaap	Proceeds From Sale Of Equity Method Investments ProceedsFromSaleOfEquityMethodInvestments	307251000	USD
CY2018	us-gaap	Proceeds From Sale Of Equity Method Investments ProceedsFromSaleOfEquityMethodInvestments	1000000	USD
CY2017	us-gaap	Proceeds From Sale Of Equity Method Investments ProceedsFromSaleOfEquityMethodInvestments	34048000	USD
CY2019	us-gaap	Proceeds From Payments For Long Term Loans For Related Parties ProceedsFromPaymentsForLongTermLoansForRelatedParties	16713000	USD
CY2018	us-gaap	Proceeds From Payments For Long Term Loans For Related Parties ProceedsFromPaymentsForLongTermLoansForRelatedParties	-25700000	USD
CY2017	us-gaap	Proceeds From Payments For Long Term Loans For Related Parties ProceedsFromPaymentsForLongTermLoansForRelatedParties	6700000	USD
CY2019	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	14175000	USD
CY2018	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	15101000	USD
CY2017	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	9670000	USD
CY2019	us-gaap	Net Cash Provided By Used In Investing Activities Continuing Operations NetCashProvidedByUsedInInvestingActivitiesContinuingOperations	-422309000	USD
CY2018	us-gaap	Net Cash Provided By Used In Investing Activities Continuing Operations NetCashProvidedByUsedInInvestingActivitiesContinuingOperations	-164324000	USD
CY2017	us-gaap	Net Cash Provided By Used In Investing Activities Continuing Operations NetCashProvidedByUsedInInvestingActivitiesContinuingOperations	-212741000	USD
CY2019	us-gaap	Cash Provided By Used In Investing Activities Discontinued Operations CashProvidedByUsedInInvestingActivitiesDiscontinuedOperations	-2064000	USD
CY2018	us-gaap	Cash Provided By Used In Investing Activities Discontinued Operations CashProvidedByUsedInInvestingActivitiesDiscontinuedOperations	-28630000	USD
CY2017	us-gaap	Cash Provided By Used In Investing Activities Discontinued Operations CashProvidedByUsedInInvestingActivitiesDiscontinuedOperations	-129535000	USD
CY2019	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-424373000	USD
CY2018	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-192954000	USD
CY2017	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-342276000	USD
CY2019	us-gaap	Proceeds From Repayments Of Lines Of Credit ProceedsFromRepaymentsOfLinesOfCredit	-927912000	USD
CY2018	us-gaap	Proceeds From Repayments Of Lines Of Credit ProceedsFromRepaymentsOfLinesOfCredit	210741000	USD
CY2017	us-gaap	Proceeds From Repayments Of Lines Of Credit ProceedsFromRepaymentsOfLinesOfCredit	302941000	USD
CY2019	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	741000	USD
CY2018	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	115000000	USD
CY2017	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	200440000	USD
CY2019	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	260944000	USD
CY2018	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	24735000	USD
CY2017	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	59288000	USD
CY2019	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	391000	USD
CY2018	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	501000	USD
CY2017	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	1892000	USD
CY2019	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	34000	USD
CY2018	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	3076000	USD
CY2017	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	5266000	USD
CY2019	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	525000000	USD
CY2018	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	200000000	USD
CY2017	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	450000000	USD
CY2019	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	10814000	USD
CY2018	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	18023000	USD
CY2017	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	44832000	USD
CY2019	us-gaap	Proceeds From Sale Of Interest In Corporate Unit ProceedsFromSaleOfInterestInCorporateUnit	1120000000	USD
CY2018	us-gaap	Proceeds From Sale Of Interest In Corporate Unit ProceedsFromSaleOfInterestInCorporateUnit	0	USD
CY2017	us-gaap	Proceeds From Sale Of Interest In Corporate Unit ProceedsFromSaleOfInterestInCorporateUnit	0	USD
CY2019	us-gaap	Proceeds From Contributions From Affiliates ProceedsFromContributionsFromAffiliates	361090000	USD
CY2018	us-gaap	Proceeds From Contributions From Affiliates ProceedsFromContributionsFromAffiliates	0	USD
CY2019	us-gaap	Fiscal Period FiscalPeriod	<p style="margin-bottom: 0"><span style="font-family: 'Times New Roman', 'serif'; font-style: italic; font-size: 11.00pt">Fiscal Year</span></p><p style="margin-bottom: 0"><span style="font-family: 'Times New Roman', 'serif'; font-size: 10.00pt"> </span></p><p style="margin-bottom: 0"><span style="font-family: 'Times New Roman', 'serif'; font-size: 10.00pt">We report our results of operations and cash flows on a </span><span style="font-family: 'Times New Roman', 'serif'; font-size: 10.00pt">52-</span><span style="font-family: 'Times New Roman', 'serif'; font-size: 10.00pt">53 week basis ending on the last Saturday of December. </span><span style="color: #000000; font-family: 'Times New Roman', 'serif'; font-size: 10.00pt; background: #FFFFFF">The years ended December 28, 2019, December 29, 2018</span><span style="font-family: 'Times New Roman', 'serif'; font-size: 10.00pt"> </span><span style="color: #000000; font-family: 'Times New Roman', 'serif'; font-size: 10.00pt; background: #FFFFFF">and December 30, 2017</span><span style="font-family: 'Times New Roman', 'serif'; font-size: 10.00pt"> </span><span style="color: #000000; font-family: 'Times New Roman', 'serif'; font-size: 10.00pt; background: #FFFFFF">consisted of </span><span style="color: #000000; font-family: 'Times New Roman', 'serif'; font-size: 10.00pt; background: #FFFFFF">52</span><span style="color: #000000; font-family: 'Times New Roman', 'serif'; font-size: 10.00pt; background: #FFFFFF"> weeks.</span><span style="font-family: 'Times New Roman', 'serif'; font-size: 10.00pt"/></p>
CY2019	us-gaap	Fiscal Period Duration FiscalPeriodDuration	P364D
CY2018	us-gaap	Fiscal Period Duration FiscalPeriodDuration	P364D
CY2017	us-gaap	Fiscal Period Duration FiscalPeriodDuration	P364D
CY2017	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	41043000	USD
CY2018Q4	us-gaap	Contract With Customer Liability Current ContractWithCustomerLiabilityCurrent	65300000	USD
CY2018Q4	us-gaap	Contract With Customer Liability Noncurrent ContractWithCustomerLiabilityNoncurrent	5000000.0	USD
CY2019Q4	us-gaap	Contract With Customer Liability Current ContractWithCustomerLiabilityCurrent	70800000	USD
CY2019Q4	us-gaap	Contract With Customer Liability Noncurrent ContractWithCustomerLiabilityNoncurrent	6200000	USD
CY2017	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	26985000	USD
CY2019	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Disposal Group Including Discontinued Operations EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsDisposalGroupIncludingDiscontinuedOperations	-2240000	USD
CY2018	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Disposal Group Including Discontinued Operations EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsDisposalGroupIncludingDiscontinuedOperations	3150000	USD
CY2017	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Disposal Group Including Discontinued Operations EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsDisposalGroupIncludingDiscontinuedOperations	-5396000	USD
CY2019	hsic	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect Contiuning Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffectContiuningOperations	49212000	USD
CY2018	hsic	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect Contiuning Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffectContiuningOperations	-101117000	USD
CY2017	hsic	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect Contiuning Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffectContiuningOperations	115335000	USD
CY2019	hsic	Cashcashequivalentsrestrictedcashandrestrictedcashequivalentsperiodincreasedecreaseincludingexchangerateeffectdisposalgroupanddiscontinuedoperations Cashcashequivalentsrestrictedcashandrestrictedcashequivalentsperiodincreasedecreaseincludingexchangerateeffectdisposalgroupanddiscontinuedoperations	-23324000	USD
CY2018	hsic	Cashcashequivalentsrestrictedcashandrestrictedcashequivalentsperiodincreasedecreaseincludingexchangerateeffectdisposalgroupanddiscontinuedoperations Cashcashequivalentsrestrictedcashandrestrictedcashequivalentsperiodincreasedecreaseincludingexchangerateeffectdisposalgroupanddiscontinuedoperations	6668000	USD
CY2019Q4	us-gaap	Bank Overdrafts BankOverdrafts	29500000	USD
CY2017	hsic	Cashcashequivalentsrestrictedcashandrestrictedcashequivalentsperiodincreasedecreaseincludingexchangerateeffectdisposalgroupanddiscontinuedoperations Cashcashequivalentsrestrictedcashandrestrictedcashequivalentsperiodincreasedecreaseincludingexchangerateeffectdisposalgroupanddiscontinuedoperations	-3058000	USD
CY2018Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	56885000	USD
CY2017Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	158002000	USD
CY2016Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	42667000	USD
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	106097000	USD
CY2018Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	56885000	USD
CY2017Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	158002000	USD
CY2018Q4	us-gaap	Bank Overdrafts BankOverdrafts	41100000	USD
CY2019	hsic	Payments To Noncontrolling Interests And Payments For Repurchase Of Redeemable Noncontrolling Interest PaymentsToNoncontrollingInterestsAndPaymentsForRepurchaseOfRedeemableNoncontrollingInterest	2358000	USD
CY2018	hsic	Payments To Noncontrolling Interests And Payments For Repurchase Of Redeemable Noncontrolling Interest PaymentsToNoncontrollingInterestsAndPaymentsForRepurchaseOfRedeemableNoncontrollingInterest	287635000	USD
CY2017	hsic	Payments To Noncontrolling Interests And Payments For Repurchase Of Redeemable Noncontrolling Interest PaymentsToNoncontrollingInterestsAndPaymentsForRepurchaseOfRedeemableNoncontrollingInterest	11532000	USD
CY2019	us-gaap	Payments Of Distributions To Affiliates PaymentsOfDistributionsToAffiliates	169295000	USD
CY2018	us-gaap	Payments Of Distributions To Affiliates PaymentsOfDistributionsToAffiliates	192745000	USD
CY2017	us-gaap	Payments Of Distributions To Affiliates PaymentsOfDistributionsToAffiliates	6374000	USD
CY2019	us-gaap	Net Cash Provided By Used In Financing Activities Continuing Operations NetCashProvidedByUsedInFinancingActivitiesContinuingOperations	-363351000	USD
CY2018	us-gaap	Net Cash Provided By Used In Financing Activities Continuing Operations NetCashProvidedByUsedInFinancingActivitiesContinuingOperations	-402173000	USD
CY2017	us-gaap	Net Cash Provided By Used In Financing Activities Continuing Operations NetCashProvidedByUsedInFinancingActivitiesContinuingOperations	-73944000	USD
CY2019	us-gaap	Cash Provided By Used In Financing Activities Discontinued Operations CashProvidedByUsedInFinancingActivitiesDiscontinuedOperations	147371000	USD
CY2018	us-gaap	Cash Provided By Used In Financing Activities Discontinued Operations CashProvidedByUsedInFinancingActivitiesDiscontinuedOperations	-201603000	USD
CY2017	us-gaap	Cash Provided By Used In Financing Activities Discontinued Operations CashProvidedByUsedInFinancingActivitiesDiscontinuedOperations	-38607000	USD
CY2019	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-215980000	USD
CY2018	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-603776000	USD
CY2017	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-112551000	USD
CY2019	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	14394000	USD
CY2018	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	14425000	USD
CY2019	us-gaap	Use Of Estimates UseOfEstimates	<p style="margin-bottom: 0"><span style="font-family: 'Times New Roman', 'serif'; font-style: italic; font-size: 11.00pt">Use of Estimates</span></p><p style="margin-bottom: 0"><span style="font-family: 'Times New Roman', 'serif'; font-size: 11.00pt"> </span></p><p style="margin-bottom: 0"><span style="font-family: 'Times New Roman', 'serif'; font-size: 11.00pt">The preparation of financial statements in conformity with accounting principles generally accepted in the United States requires us to make 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 period. Actual results could differ from those estimates.</span></p>
CY2019	us-gaap	Marketing And Advertising Expense MarketingAndAdvertisingExpense	25200000	USD
CY2018	us-gaap	Marketing And Advertising Expense MarketingAndAdvertisingExpense	12900000	USD
CY2017	us-gaap	Marketing And Advertising Expense MarketingAndAdvertisingExpense	800000	USD
CY2018Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	314221000	USD
CY2019	us-gaap	Depreciation Depreciation	64400000	USD
CY2018	us-gaap	Depreciation Depreciation	58100000	USD
CY2017	us-gaap	Depreciation Depreciation	54700000	USD
CY2017Q4	us-gaap	Goodwill Goodwill	1553582000	USD
CY2018	us-gaap	Goodwill Acquired During Period GoodwillAcquiredDuringPeriod	568912000	USD
CY2018	us-gaap	Goodwill Foreign Currency Translation Gain Loss GoodwillForeignCurrencyTranslationGainLoss	-41465000	USD
CY2019	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0	USD
CY2018	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0	USD
CY2017	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0	USD
CY2019	hsic	Distribution Network Costs DistributionNetworkCosts	72300000	USD
CY2018	hsic	Distribution Network Costs DistributionNetworkCosts	69600000	USD
CY2017	hsic	Distribution Network Costs DistributionNetworkCosts	67500000	USD
CY2019	us-gaap	Lessee Operating Lease Option To Extend LesseeOperatingLeaseOptionToExtend	Our lease terms may include options to extend or terminate the lease when it is reasonably certain that we will exercise that option.
CY2019Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	798591000	USD
CY2018Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	905105000	USD
CY2019Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	468946000	USD
CY2018Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	590884000	USD
CY2019Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	329645000	USD
CY2018Q4	us-gaap	Goodwill Goodwill	2081029000	USD
CY2019	us-gaap	Goodwill Acquired During Period GoodwillAcquiredDuringPeriod	388628000	USD
CY2019	us-gaap	Goodwill Foreign Currency Translation Gain Loss GoodwillForeignCurrencyTranslationGainLoss	-7162000	USD
CY2019Q4	us-gaap	Goodwill Goodwill	2462495000	USD
CY2019Q4	us-gaap	Intangible Assets Gross Excluding Goodwill IntangibleAssetsGrossExcludingGoodwill	960945000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	388067000	USD
CY2019Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	572878000	USD
CY2018Q4	us-gaap	Intangible Assets Gross Excluding Goodwill IntangibleAssetsGrossExcludingGoodwill	694585000	USD
CY2018Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	318554000	USD
CY2018Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	376031000	USD
CY2019	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	108300000	USD
CY2018	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	75300000	USD
CY2017	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	70300000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Next Twelve Months FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths	102700000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Two FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo	95600000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Three FiniteLivedIntangibleAssetsAmortizationExpenseYearThree	81400000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Four FiniteLivedIntangibleAssetsAmortizationExpenseYearFour	73700000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Five FiniteLivedIntangibleAssetsAmortizationExpenseYearFive	59300000	USD
CY2019Q4	us-gaap	Investments In Affiliates Subsidiaries Associates And Joint Ventures InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures	164659000	USD
CY2018Q4	us-gaap	Investments In Affiliates Subsidiaries Associates And Joint Ventures InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures	260954000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Liabilities Net Noncurrent DeferredTaxAssetsLiabilitiesNetNoncurrent	23625000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Liabilities Net Noncurrent DeferredTaxAssetsLiabilitiesNetNoncurrent	12196000	USD
CY2018Q4	us-gaap	Notes And Loans Receivable Net Noncurrent NotesAndLoansReceivableNetNoncurrent	66047000	USD
CY2019Q4	us-gaap	Capitalized Computer Software Net CapitalizedComputerSoftwareNet	42445000	USD
CY2018Q4	us-gaap	Capitalized Computer Software Net CapitalizedComputerSoftwareNet	37659000	USD
CY2019Q4	hsic	Distribution Rights And Exclusivity Agreements Net Of Amortization DistributionRightsAndExclusivityAgreementsNetOfAmortization	4000	USD
CY2018Q4	hsic	Distribution Rights And Exclusivity Agreements Net Of Amortization DistributionRightsAndExclusivityAgreementsNetOfAmortization	582000	USD
CY2019Q4	us-gaap	Deposits Assets DepositsAssets	534000	USD
CY2018Q4	us-gaap	Deposits Assets DepositsAssets	0	USD
CY2019Q4	us-gaap	Business Combination Indemnification Assets Amount As Of Acquisition Date BusinessCombinationIndemnificationAssetsAmountAsOfAcquisitionDate	38464000	USD
CY2018Q4	us-gaap	Business Combination Indemnification Assets Amount As Of Acquisition Date BusinessCombinationIndemnificationAssetsAmountAsOfAcquisitionDate	28283000	USD
CY2019Q4	us-gaap	Other Assets Miscellaneous Noncurrent OtherAssetsMiscellaneousNoncurrent	14644000	USD
CY2018Q4	us-gaap	Other Assets Miscellaneous Noncurrent OtherAssetsMiscellaneousNoncurrent	14646000	USD
CY2019Q4	us-gaap	Investments And Other Noncurrent Assets InvestmentsAndOtherNoncurrentAssets	327919000	USD
CY2018Q4	us-gaap	Investments And Other Noncurrent Assets InvestmentsAndOtherNoncurrentAssets	420367000	USD
CY2019	us-gaap	Other Depreciation And Amortization OtherDepreciationAndAmortization	12300000	USD
CY2018	us-gaap	Other Depreciation And Amortization OtherDepreciationAndAmortization	10200000	USD
CY2017	us-gaap	Other Depreciation And Amortization OtherDepreciationAndAmortization	8800000	USD
CY2019	us-gaap	Lessee Operating Lease Description LesseeOperatingLeaseDescription	We have operating and finance leases for corporate offices, office space, distribution and other facilities, vehicles and certain equipment.
CY2018Q4	us-gaap	Finance Lease Liability FinanceLeaseLiability	3944000	USD
CY2019Q4	hsic	Long Term Debt And Finance Lease Liability Including Current Maturities LongTermDebtAndFinanceLeaseLiabilityIncludingCurrentMaturities	732757000	USD
CY2018Q4	hsic	Long Term Debt And Finance Lease Liability Including Current Maturities LongTermDebtAndFinanceLeaseLiabilityIncludingCurrentMaturities	988624000	USD
CY2019Q4	us-gaap	Long Term Debt And Capital Lease Obligations Current LongTermDebtAndCapitalLeaseObligationsCurrent	109849000	USD
CY2018Q4	us-gaap	Long Term Debt And Capital Lease Obligations Current LongTermDebtAndCapitalLeaseObligationsCurrent	8280000	USD
CY2019Q4	us-gaap	Long Term Debt And Capital Lease Obligations LongTermDebtAndCapitalLeaseObligations	622908000	USD
CY2018Q4	us-gaap	Long Term Debt And Capital Lease Obligations LongTermDebtAndCapitalLeaseObligations	980344000	USD
CY2019Q4	us-gaap	Deferred Finance Costs Gross DeferredFinanceCostsGross	155000	USD
CY2019Q4	hsic	Long Term Debt And Finance Lease Liability Repayments Of Principal In Next Twelve Months LongTermDebtAndFinanceLeaseLiabilityRepaymentsOfPrincipalInNextTwelveMonths	109849000	USD
CY2019Q4	hsic	Long Term Debt And Finance Lease Liability Maturities Repayments Of Principal In Year Two LongTermDebtAndFinanceLeaseLiabilityMaturitiesRepaymentsOfPrincipalInYearTwo	108842000	USD
CY2019Q4	hsic	Long Term Debt And Finance Lease Liability Maturities Repayments Of Principal In Year Three LongTermDebtAndFinanceLeaseLiabilityMaturitiesRepaymentsOfPrincipalInYearThree	110504000	USD
CY2019Q4	hsic	Long Term Debt And Finance Lease Liability Maturities Repayments Of Principal In Year Four LongTermDebtAndFinanceLeaseLiabilityMaturitiesRepaymentsOfPrincipalInYearFour	1529000	USD
CY2019Q4	hsic	Long Term Debt And Finance Lease Liability Maturities Repayments Of Principal In Year Five LongTermDebtAndFinanceLeaseLiabilityMaturitiesRepaymentsOfPrincipalInYearFive	101112000	USD
CY2019Q4	hsic	Long Term Debt And Finance Lease Liability Maturities Repayments Of Principal After Year Five LongTermDebtAndFinanceLeaseLiabilityMaturitiesRepaymentsOfPrincipalAfterYearFive	300921000	USD
CY2019Q4	hsic	Long Term Debt And Finance Lease Liability Including Current Maturities LongTermDebtAndFinanceLeaseLiabilityIncludingCurrentMaturities	732757000	USD
CY2019	us-gaap	Operating Lease Cost OperatingLeaseCost	88246000	USD
CY2019	us-gaap	Finance Lease Right Of Use Asset Amortization FinanceLeaseRightOfUseAssetAmortization	1154000	USD
CY2019	us-gaap	Finance Lease Interest Expense FinanceLeaseInterestExpense	131000	USD
CY2019	hsic	Financeleasecost Financeleasecost	1285000	USD
CY2019Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	231662000	USD
CY2019Q4	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	65349000	USD
CY2019Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	176267000	USD
CY2019Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	241616000	USD
CY2019Q4	hsic	Property Plant And Equipment Gross Finance Lease Right Of Use Asset PropertyPlantAndEquipmentGrossFinanceLeaseRightOfUseAsset	10268000	USD
CY2019Q4	hsic	Finance Lease Right Of Use Asset Accumulated Depreciation Property Plant And Equipment FinanceLeaseRightOfUseAssetAccumulatedDepreciationPropertyPlantAndEquipment	4581000	USD
CY2019Q4	us-gaap	Finance Lease Right Of Use Asset FinanceLeaseRightOfUseAsset	5687000	USD
CY2019Q4	us-gaap	Finance Lease Liability Current FinanceLeaseLiabilityCurrent	1736000	USD
CY2019Q4	us-gaap	Finance Lease Liability Noncurrent FinanceLeaseLiabilityNoncurrent	3658000	USD
CY2019Q4	us-gaap	Finance Lease Liability FinanceLeaseLiability	5394000	USD
CY2019Q4	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P5Y6M
CY2019Q4	us-gaap	Finance Lease Weighted Average Remaining Lease Term1 FinanceLeaseWeightedAverageRemainingLeaseTerm1	P5Y
CY2019Q4	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.034	pure
CY2019Q4	us-gaap	Finance Lease Weighted Average Discount Rate Percent FinanceLeaseWeightedAverageDiscountRatePercent	0.022	pure
CY2019	us-gaap	Operating Lease Payments OperatingLeasePayments	79699000	USD
CY2019	us-gaap	Finance Lease Interest Payment On Liability FinanceLeaseInterestPaymentOnLiability	99000	USD
CY2019	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	1413000	USD
CY2019	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	297800000	USD
CY2019	us-gaap	Right Of Use Asset Obtained In Exchange For Finance Lease Liability RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability	2940000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due Next Rolling Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextRollingTwelveMonths	70986000	USD
CY2019Q4	us-gaap	Finance Lease Liability Payments Due Next Twelve Months FinanceLeaseLiabilityPaymentsDueNextTwelveMonths	1853000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	56557000	USD
CY2019Q4	us-gaap	Finance Lease Liability Payments Due Year Two FinanceLeaseLiabilityPaymentsDueYearTwo	1529000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	40601000	USD
CY2019Q4	us-gaap	Finance Lease Liability Payments Due Year Three FinanceLeaseLiabilityPaymentsDueYearThree	646000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	27021000	USD
CY2019Q4	us-gaap	Finance Lease Liability Payments Due Year Four FinanceLeaseLiabilityPaymentsDueYearFour	304000	USD
CY2018Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.72
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Five LesseeOperatingLeaseLiabilityPaymentsDueYearFive	18944000	USD
CY2019Q4	us-gaap	Finance Lease Liability Payments Due Year Five FinanceLeaseLiabilityPaymentsDueYearFive	283000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due After Year Five LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive	51762000	USD
CY2019Q4	us-gaap	Finance Lease Liability Payments Due After Year Five FinanceLeaseLiabilityPaymentsDueAfterYearFive	1117000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	265871000	USD
CY2019Q4	us-gaap	Finance Lease Liability Payments Due FinanceLeaseLiabilityPaymentsDue	5732000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	24255000	USD
CY2019Q4	us-gaap	Finance Lease Liability Undiscounted Excess Amount FinanceLeaseLiabilityUndiscountedExcessAmount	338000	USD
CY2019Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	241616000	USD
CY2019Q4	us-gaap	Finance Lease Liability FinanceLeaseLiability	5394000	USD
CY2019Q4	hsic	Operating Lease Assets Lease Not Yet Commenced OperatingLeaseAssetsLeaseNotYetCommenced	9000000.0	USD
CY2019	us-gaap	Lessee Operating Lease Lease Not Yet Commenced Description LesseeOperatingLeaseLeaseNotYetCommencedDescription	buildings and vehicles
CY2019Q4	us-gaap	Operating Leases Future Minimum Payments Due Current OperatingLeasesFutureMinimumPaymentsDueCurrent	62535000	USD
CY2019Q4	us-gaap	Capital Leases Future Minimum Payments Due Current CapitalLeasesFutureMinimumPaymentsDueCurrent	976000	USD
CY2019Q4	us-gaap	Operating Leases Future Minimum Payments Due In Two Years OperatingLeasesFutureMinimumPaymentsDueInTwoYears	47686000	USD
CY2019Q4	us-gaap	Capital Leases Future Minimum Payments Due In Two Years CapitalLeasesFutureMinimumPaymentsDueInTwoYears	801000	USD
CY2019Q4	us-gaap	Operating Leases Future Minimum Payments Due In Three Years OperatingLeasesFutureMinimumPaymentsDueInThreeYears	34633000	USD
CY2019Q4	us-gaap	Capital Leases Future Minimum Payments Due In Three Years CapitalLeasesFutureMinimumPaymentsDueInThreeYears	501000	USD
CY2019Q4	us-gaap	Operating Leases Future Minimum Payments Due In Four Years OperatingLeasesFutureMinimumPaymentsDueInFourYears	25626000	USD
CY2019Q4	us-gaap	Capital Leases Future Minimum Payments Due In Four Years CapitalLeasesFutureMinimumPaymentsDueInFourYears	305000	USD
CY2019Q4	us-gaap	Operating Leases Future Minimum Payments Due In Five Years OperatingLeasesFutureMinimumPaymentsDueInFiveYears	19560000	USD
CY2019Q4	us-gaap	Capital Leases Future Minimum Payments Due In Five Years CapitalLeasesFutureMinimumPaymentsDueInFiveYears	283000	USD
CY2019Q4	us-gaap	Operating Leases Future Minimum Payments Due Thereafter OperatingLeasesFutureMinimumPaymentsDueThereafter	62918000	USD
CY2019Q4	us-gaap	Capital Leases Future Minimum Payments Due Thereafter CapitalLeasesFutureMinimumPaymentsDueThereafter	1430000	USD
CY2019Q4	us-gaap	Operating Leases Future Minimum Payments Due OperatingLeasesFutureMinimumPaymentsDue	252958000	USD
CY2019Q4	us-gaap	Capital Leases Future Minimum Payments Due CapitalLeasesFutureMinimumPaymentsDue	4296000	USD
CY2019Q4	us-gaap	Capital Leases Future Minimum Payments Interest Included In Payments CapitalLeasesFutureMinimumPaymentsInterestIncludedInPayments	352000	USD
CY2019Q4	us-gaap	Capital Leases Future Minimum Payments Present Value Of Net Minimum Payments CapitalLeasesFutureMinimumPaymentsPresentValueOfNetMinimumPayments	3944000	USD
CY2018Q4	us-gaap	Temporary Equity Carrying Amount Including Portion Attributable To Noncontrolling Interests TemporaryEquityCarryingAmountIncludingPortionAttributableToNoncontrollingInterests	219724000	USD
CY2017Q4	us-gaap	Temporary Equity Carrying Amount Including Portion Attributable To Noncontrolling Interests TemporaryEquityCarryingAmountIncludingPortionAttributableToNoncontrollingInterests	465585000	USD
CY2016Q4	us-gaap	Temporary Equity Carrying Amount Including Portion Attributable To Noncontrolling Interests TemporaryEquityCarryingAmountIncludingPortionAttributableToNoncontrollingInterests	285567000	USD
CY2019	us-gaap	Temporary Equity Elimination As Partof Reorganization TemporaryEquityEliminationAsPartofReorganization	2270000	USD
CY2018	us-gaap	Temporary Equity Elimination As Partof Reorganization TemporaryEquityEliminationAsPartofReorganization	287767000	USD
CY2017	us-gaap	Temporary Equity Elimination As Partof Reorganization TemporaryEquityEliminationAsPartofReorganization	22294000	USD
CY2019	us-gaap	Temporary Equity Stock Issued During Period Value New Issues TemporaryEquityStockIssuedDuringPeriodValueNewIssues	74865000	USD
CY2018	us-gaap	Temporary Equity Stock Issued During Period Value New Issues TemporaryEquityStockIssuedDuringPeriodValueNewIssues	4655000	USD
CY2017	us-gaap	Temporary Equity Stock Issued During Period Value New Issues TemporaryEquityStockIssuedDuringPeriodValueNewIssues	72291000	USD
CY2019	us-gaap	Net Income Loss Attributable To Redeemable Noncontrolling Interest NetIncomeLossAttributableToRedeemableNoncontrollingInterest	14838000	USD
CY2018	us-gaap	Net Income Loss Attributable To Redeemable Noncontrolling Interest NetIncomeLossAttributableToRedeemableNoncontrollingInterest	15327000	USD
CY2017	us-gaap	Net Income Loss Attributable To Redeemable Noncontrolling Interest NetIncomeLossAttributableToRedeemableNoncontrollingInterest	24513000	USD
CY2019	hsic	Redeemable Noncontrolling Decrease From Distributions By Redeemable Noncontrolling Interest RedeemableNoncontrollingDecreaseFromDistributionsByRedeemableNoncontrollingInterest	10264000	USD
CY2018	hsic	Redeemable Noncontrolling Decrease From Distributions By Redeemable Noncontrolling Interest RedeemableNoncontrollingDecreaseFromDistributionsByRedeemableNoncontrollingInterest	8206000	USD
CY2019	hsic	Comprehensive Income Attributable To Noncontrolling Interests Excluding Comprehensive Income Attributable To Redeemable Noncontrolling Interests ComprehensiveIncomeAttributableToNoncontrollingInterestsExcludingComprehensiveIncomeAttributableToRedeemableNoncontrollingInterests	9827000	USD
CY2019Q4	hsic	Accumulated Other Comprehensive Income Loss Foreign Currency Translation Adjustment Attributable To Redeemable Noncontrolling Interest Net Of Tax AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentAttributableToRedeemableNoncontrollingInterestNetOfTax	-20338000	USD
CY2018Q4	hsic	Accumulated Other Comprehensive Income Loss Foreign Currency Translation Adjustment Attributable To Redeemable Noncontrolling Interest Net Of Tax AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentAttributableToRedeemableNoncontrollingInterestNetOfTax	-18595000	USD
CY2017Q4	hsic	Accumulated Other Comprehensive Income Loss Foreign Currency Translation Adjustment Attributable To Redeemable Noncontrolling Interest Net Of Tax AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentAttributableToRedeemableNoncontrollingInterestNetOfTax	-5564000	USD
CY2019Q4	hsic	Accumulated Other Comprehensive Income Loss Foreign Currency Translation Adjustment Attributable To Nonredeemable Noncontrolling Interests Net Of Tax AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentAttributableToNonredeemableNoncontrollingInterestsNetOfTax	-531000	USD
CY2018Q4	hsic	Accumulated Other Comprehensive Income Loss Foreign Currency Translation Adjustment Attributable To Nonredeemable Noncontrolling Interests Net Of Tax AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentAttributableToNonredeemableNoncontrollingInterestsNetOfTax	-426000	USD
CY2017	hsic	Redeemable Noncontrolling Decrease From Distributions By Redeemable Noncontrolling Interest RedeemableNoncontrollingDecreaseFromDistributionsByRedeemableNoncontrollingInterest	7680000	USD
CY2019	us-gaap	Temporary Equity Foreign Currency Translation Adjustments TemporaryEquityForeignCurrencyTranslationAdjustments	-2335000	USD
CY2018	us-gaap	Temporary Equity Foreign Currency Translation Adjustments TemporaryEquityForeignCurrencyTranslationAdjustments	-11330000	USD
CY2017	us-gaap	Temporary Equity Foreign Currency Translation Adjustments TemporaryEquityForeignCurrencyTranslationAdjustments	4530000	USD
CY2019	us-gaap	Temporary Equity Accretion To Redemption Value TemporaryEquityAccretionToRedemptionValue	-7300000	USD
CY2018	us-gaap	Temporary Equity Accretion To Redemption Value TemporaryEquityAccretionToRedemptionValue	41460000	USD
CY2019Q4	us-gaap	Temporary Equity Carrying Amount Including Portion Attributable To Noncontrolling Interests TemporaryEquityCarryingAmountIncludingPortionAttributableToNoncontrollingInterests	287258000	USD
CY2018Q4	us-gaap	Temporary Equity Carrying Amount Including Portion Attributable To Noncontrolling Interests TemporaryEquityCarryingAmountIncludingPortionAttributableToNoncontrollingInterests	219724000	USD
CY2017Q4	us-gaap	Temporary Equity Carrying Amount Including Portion Attributable To Noncontrolling Interests TemporaryEquityCarryingAmountIncludingPortionAttributableToNoncontrollingInterests	465585000	USD
CY2017Q4	hsic	Accumulated Other Comprehensive Income Loss Foreign Currency Translation Adjustment Attributable To Nonredeemable Noncontrolling Interests Net Of Tax AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentAttributableToNonredeemableNoncontrollingInterestsNetOfTax	539000	USD
CY2019Q4	us-gaap	Accumulated Other Comprehensive Income Loss Foreign Currency Translation Adjustment Net Of Tax AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax	-143172000	USD
CY2018Q4	us-gaap	Accumulated Other Comprehensive Income Loss Foreign Currency Translation Adjustment Net Of Tax AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax	-234799000	USD
CY2017Q4	us-gaap	Accumulated Other Comprehensive Income Loss Foreign Currency Translation Adjustment Net Of Tax AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax	-112439000	USD
CY2019Q4	us-gaap	Aoci Loss Cash Flow Hedge Cumulative Gain Loss After Tax AociLossCashFlowHedgeCumulativeGainLossAfterTax	-4032000	USD
CY2018Q4	us-gaap	Aoci Loss Cash Flow Hedge Cumulative Gain Loss After Tax AociLossCashFlowHedgeCumulativeGainLossAfterTax	-156000	USD
CY2017Q4	us-gaap	Aoci Loss Cash Flow Hedge Cumulative Gain Loss After Tax AociLossCashFlowHedgeCumulativeGainLossAfterTax	-782000	USD
CY2019Q4	us-gaap	Accumulated Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax AccumulatedOtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	6000	USD
CY2018Q4	us-gaap	Accumulated Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax AccumulatedOtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	-6000	USD
CY2019Q4	us-gaap	Accumulated Other Comprehensive Income Loss Defined Benefit Pension And Other Postretirement Plans Net Of Tax AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax	20175000	USD
CY2018Q4	us-gaap	Accumulated Other Comprehensive Income Loss Defined Benefit Pension And Other Postretirement Plans Net Of Tax AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax	13810000	USD
CY2017Q4	us-gaap	Accumulated Other Comprehensive Income Loss Defined Benefit Pension And Other Postretirement Plans Net Of Tax AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax	16843000	USD
CY2019Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-167373000	USD
CY2018Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-248771000	USD
CY2017Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-130067000	USD
CY2019Q4	hsic	Accumulated Other Comprehensive Income Loss Net Of Tax Including Portion Attributable To Redeemable And Nonredeemable Noncontrolling Interests AccumulatedOtherComprehensiveIncomeLossNetOfTaxIncludingPortionAttributableToRedeemableAndNonredeemableNoncontrollingInterests	-188242000	USD
CY2018Q4	hsic	Accumulated Other Comprehensive Income Loss Net Of Tax Including Portion Attributable To Redeemable And Nonredeemable Noncontrolling Interests AccumulatedOtherComprehensiveIncomeLossNetOfTaxIncludingPortionAttributableToRedeemableAndNonredeemableNoncontrollingInterests	-267792000	USD
CY2017Q4	hsic	Accumulated Other Comprehensive Income Loss Net Of Tax Including Portion Attributable To Redeemable And Nonredeemable Noncontrolling Interests AccumulatedOtherComprehensiveIncomeLossNetOfTaxIncludingPortionAttributableToRedeemableAndNonredeemableNoncontrollingInterests	-135092000	USD
CY2019	us-gaap	Profit Loss ProfitLoss	719138000	USD
CY2018	us-gaap	Profit Loss ProfitLoss	562126000	USD
CY2017	us-gaap	Profit Loss ProfitLoss	459293000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Before Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentBeforeTax	-4070000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Before Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentBeforeTax	-136356000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Before Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentBeforeTax	191886000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Foreign Currency Translation Adjustment Tax OtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentTax	0	USD
CY2018	us-gaap	Other Comprehensive Income Loss Foreign Currency Translation Adjustment Tax OtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentTax	0	USD
CY2017	us-gaap	Other Comprehensive Income Loss Foreign Currency Translation Adjustment Tax OtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentTax	0	USD
CY2019	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	-4070000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	-136356000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification Before Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationBeforeTax	-4911000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification Before Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationBeforeTax	1022000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationTax	-1035000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationTax	-786000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax	-3876000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax	626000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax	-729000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Before Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentBeforeTax	14000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Before Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentBeforeTax	-3000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Before Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentBeforeTax	-4000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesTax	2000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesTax	-1000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	12000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	-3000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	-3000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Before Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeTax	7730000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Before Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeTax	-4212000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Before Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeTax	-4247000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax	1806000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax	1179000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	5924000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	-3033000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	-3933000	USD
CY2019	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	705280000	USD
CY2018	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	429426000	USD
CY2017	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	654380000	USD
CY2019	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	682724000	USD
CY2018	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	417177000	USD
CY2017	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	593273000	USD
CY2018	hsic	Comprehensive Income Attributable To Noncontrolling Interests Excluding Comprehensive Income Attributable To Redeemable Noncontrolling Interests ComprehensiveIncomeAttributableToNoncontrollingInterestsExcludingComprehensiveIncomeAttributableToRedeemableNoncontrollingInterests	3432000	USD
CY2017	hsic	Comprehensive Income Attributable To Noncontrolling Interests Excluding Comprehensive Income Attributable To Redeemable Noncontrolling Interests ComprehensiveIncomeAttributableToNoncontrollingInterestsExcludingComprehensiveIncomeAttributableToRedeemableNoncontrollingInterests	1443000	USD
CY2019	hsic	Comprehensive Income Net Of Tax Attributable To Redeemable Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToRedeemableNoncontrollingInterest	12729000	USD
CY2018	hsic	Comprehensive Income Net Of Tax Attributable To Redeemable Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToRedeemableNoncontrollingInterest	8817000	USD
CY2019	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	705280000	USD
CY2018	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	429426000	USD
CY2017	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	654380000	USD
CY2019Q4	us-gaap	Business Acquisition Cost Of Acquired Entity Transaction Costs BusinessAcquisitionCostOfAcquiredEntityTransactionCosts	4500000	USD
CY2018Q4	us-gaap	Business Acquisition Cost Of Acquired Entity Transaction Costs BusinessAcquisitionCostOfAcquiredEntityTransactionCosts	7300000	USD
CY2017Q4	us-gaap	Business Acquisition Cost Of Acquired Entity Transaction Costs BusinessAcquisitionCostOfAcquiredEntityTransactionCosts	5300000	USD
CY2019	us-gaap	Income Tax Reconciliation Tax Contingencies IncomeTaxReconciliationTaxContingencies	3671000	USD
CY2018	us-gaap	Restructuring Settlement And Impairment Provisions RestructuringSettlementAndImpairmentProvisions	54367000	USD
CY2018	hsic	Payments For Restructuring And Restructuring Reserve Accrual Adjustment PaymentsForRestructuringAndRestructuringReserveAccrualAdjustment	27068000	USD
CY2018Q4	us-gaap	Restructuring Reserve RestructuringReserve	31725000	USD
CY2019	us-gaap	Restructuring Settlement And Impairment Provisions RestructuringSettlementAndImpairmentProvisions	14705000	USD
CY2019	hsic	Payments For Restructuring And Restructuring Reserve Accrual Adjustment PaymentsForRestructuringAndRestructuringReserveAccrualAdjustment	32620000	USD
CY2018	hsic	Payments For Restructuring And Restructuring Reserve Accrual Adjustment PaymentsForRestructuringAndRestructuringReserveAccrualAdjustment	27068000	USD
CY2018Q4	us-gaap	Restructuring Reserve RestructuringReserve	31725000	USD
CY2019	us-gaap	Restructuring Settlement And Impairment Provisions RestructuringSettlementAndImpairmentProvisions	14705000	USD
CY2019	hsic	Payments For Restructuring And Restructuring Reserve Accrual Adjustment PaymentsForRestructuringAndRestructuringReserveAccrualAdjustment	32620000	USD
CY2019Q4	us-gaap	Restructuring Reserve RestructuringReserve	13810000	USD
CY2016Q4	us-gaap	Restructuring Reserve RestructuringReserve	22650000	USD
CY2019Q4	us-gaap	Restructuring Reserve RestructuringReserve	13810000	USD
CY2017	us-gaap	Restructuring Settlement And Impairment Provisions RestructuringSettlementAndImpairmentProvisions	0	USD
CY2017	hsic	Payments For Restructuring And Restructuring Reserve Accrual Adjustment PaymentsForRestructuringAndRestructuringReserveAccrualAdjustment	18224000	USD
CY2017Q4	us-gaap	Restructuring Reserve RestructuringReserve	4426000	USD
CY2019	us-gaap	Restructuring Settlement And Impairment Provisions RestructuringSettlementAndImpairmentProvisions	14700000	USD
CY2018	us-gaap	Restructuring Settlement And Impairment Provisions RestructuringSettlementAndImpairmentProvisions	54400000	USD
CY2016Q4	us-gaap	Restructuring Reserve RestructuringReserve	22650000	USD
CY2017	us-gaap	Restructuring Settlement And Impairment Provisions RestructuringSettlementAndImpairmentProvisions	0	USD
CY2017	hsic	Payments For Restructuring And Restructuring Reserve Accrual Adjustment PaymentsForRestructuringAndRestructuringReserveAccrualAdjustment	18224000	USD
CY2017Q4	us-gaap	Restructuring Reserve RestructuringReserve	4426000	USD
CY2018	us-gaap	Restructuring Settlement And Impairment Provisions RestructuringSettlementAndImpairmentProvisions	54367000	USD
CY2019	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	147817000	shares
CY2018	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	152656000	shares
CY2017	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	156787000	shares
CY2019	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	1440000	shares
CY2018	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	1051000	shares
CY2017	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	1421000	shares
CY2019	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	149257000	shares
CY2018	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	153707000	shares
CY2017	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	158208000	shares
CY2018	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	405289000	USD
CY2017	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	526586000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	173304000	USD
CY2018	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	131547000	USD
CY2017	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	103208000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	507003000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	680307000	USD
CY2018	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	536836000	USD
CY2019	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	93418000	USD
CY2018	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	71854000	USD
CY2017	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	247254000	USD
CY2019	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	28150000	USD
CY2018	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	22533000	USD
CY2017	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	19489000	USD
CY2019	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	42004000	USD
CY2018	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	38433000	USD
CY2019	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	163572000	USD
CY2018	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	132820000	USD
CY2017	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	307786000	USD
CY2019	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	5633000	USD
CY2018	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	206000	USD
CY2017	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	12927000	USD
CY2019	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	1597000	USD
CY2018	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-1622000	USD
CY2017	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	1621000	USD
CY2019	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	-11287000	USD
CY2018	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	-23972000	USD
CY2017	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	-13359000	USD
CY2019	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-4057000	USD
CY2018	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-25388000	USD
CY2017	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	1189000	USD
CY2018	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	107432000	USD
CY2017	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	308975000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Investment In Subsidiaries DeferredTaxAssetsInvestmentInSubsidiaries	1420000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Investment In Subsidiaries DeferredTaxAssetsInvestmentInSubsidiaries	4150000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards Foreign DeferredTaxAssetsOperatingLossCarryforwardsForeign	43663000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards Foreign DeferredTaxAssetsOperatingLossCarryforwardsForeign	43754000	USD
CY2019Q4	hsic	Deferred Tax Assets Noncurrent Tax Deferred Expense Reserves And Accruals Reserves DeferredTaxAssetsNoncurrentTaxDeferredExpenseReservesAndAccrualsReserves	23808000	USD
CY2018Q4	hsic	Deferred Tax Assets Noncurrent Tax Deferred Expense Reserves And Accruals Reserves DeferredTaxAssetsNoncurrentTaxDeferredExpenseReservesAndAccrualsReserves	25008000	USD
CY2019Q4	hsic	Deferred Tax Assets Noncurrent Inventory DeferredTaxAssetsNoncurrentInventory	14075000	USD
CY2018Q4	hsic	Deferred Tax Assets Noncurrent Inventory DeferredTaxAssetsNoncurrentInventory	14880000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Share Based Compensation Cost DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost	7259000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Share Based Compensation Cost DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost	8189000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	35419000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	38806000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	125644000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	134787000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	20699000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	22403000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	104945000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	112384000	USD
CY2019Q4	us-gaap	Deferred Tax Liabilities Goodwill And Intangible Assets Intangible Assets DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets	135754000	USD
CY2018Q4	us-gaap	Deferred Tax Liabilities Goodwill And Intangible Assets Intangible Assets DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets	103309000	USD
CY2019Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	10555000	USD
CY2018Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	13075000	USD
CY2019Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	146309000	USD
CY2018Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	116384000	USD
CY2019Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	41364000000	USD
CY2018Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	4000000	USD
CY2019	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	142865000	USD
CY2018	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	112735000	USD
CY2018	us-gaap	Income Tax Reconciliation Nondeductible Expense Share Based Compensation Cost IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost	-1008000	USD
CY2017	us-gaap	Income Tax Reconciliation Nondeductible Expense Share Based Compensation Cost IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost	-16964000	USD
CY2017	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	220427000	USD
CY2019	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	16539000	USD
CY2018	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	15872000	USD
CY2017	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	10320000	USD
CY2019	us-gaap	Income Tax Reconciliation Foreign Income Tax Rate Differential IncomeTaxReconciliationForeignIncomeTaxRateDifferential	-4580000	USD
CY2018	us-gaap	Income Tax Reconciliation Foreign Income Tax Rate Differential IncomeTaxReconciliationForeignIncomeTaxRateDifferential	-2558000	USD
CY2017	us-gaap	Income Tax Reconciliation Foreign Income Tax Rate Differential IncomeTaxReconciliationForeignIncomeTaxRateDifferential	-19486000	USD
CY2019	us-gaap	Income Tax Reconciliation Minority Interest Income Expense IncomeTaxReconciliationMinorityInterestIncomeExpense	3931000	USD
CY2018	us-gaap	Income Tax Reconciliation Minority Interest Income Expense IncomeTaxReconciliationMinorityInterestIncomeExpense	2700000	USD
CY2017	us-gaap	Income Tax Reconciliation Minority Interest Income Expense IncomeTaxReconciliationMinorityInterestIncomeExpense	1465000	USD
CY2019	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	-79000	USD
CY2018	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	2017000	USD
CY2017	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	1629000	USD
CY2018	us-gaap	Income Tax Reconciliation Tax Contingencies IncomeTaxReconciliationTaxContingencies	2126000	USD
CY2017	us-gaap	Income Tax Reconciliation Tax Contingencies IncomeTaxReconciliationTaxContingencies	4196000	USD
CY2019	hsic	Income Tax Reconciliation Interest Expense Related To Loans IncomeTaxReconciliationInterestExpenseRelatedToLoans	-5498000	USD
CY2018	hsic	Income Tax Reconciliation Interest Expense Related To Loans IncomeTaxReconciliationInterestExpenseRelatedToLoans	-11700000	USD
CY2017	hsic	Income Tax Reconciliation Interest Expense Related To Loans IncomeTaxReconciliationInterestExpenseRelatedToLoans	-18492000	USD
CY2019	us-gaap	Income Tax Reconciliation Nondeductible Expense Share Based Compensation Cost IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost	-86000	USD
CY2019	hsic	Tax Cuts And Jobs Act Change In Tax Rate Income Tax Expense Benefit TaxCutsAndJobsActChangeInTaxRateIncomeTaxExpenseBenefit	0	USD
CY2018	hsic	Tax Cuts And Jobs Act Change In Tax Rate Income Tax Expense Benefit TaxCutsAndJobsActChangeInTaxRateIncomeTaxExpenseBenefit	-1676000	USD
CY2017	hsic	Tax Cuts And Jobs Act Change In Tax Rate Income Tax Expense Benefit TaxCutsAndJobsActChangeInTaxRateIncomeTaxExpenseBenefit	2953000	USD
CY2019	hsic	Effective Income Tax Rate Reconciliation Tax Cuts And Jobs Act Global Intangible Low Taxed Income Amount EffectiveIncomeTaxRateReconciliationTaxCutsAndJobsActGlobalIntangibleLowTaxedIncomeAmount	3917000	USD
CY2018	hsic	Effective Income Tax Rate Reconciliation Tax Cuts And Jobs Act Global Intangible Low Taxed Income Amount EffectiveIncomeTaxRateReconciliationTaxCutsAndJobsActGlobalIntangibleLowTaxedIncomeAmount	7599000	USD
CY2017	hsic	Effective Income Tax Rate Reconciliation Tax Cuts And Jobs Act Global Intangible Low Taxed Income Amount EffectiveIncomeTaxRateReconciliationTaxCutsAndJobsActGlobalIntangibleLowTaxedIncomeAmount	0	USD
CY2019	us-gaap	Income Tax Reconciliation Deductions Extraterritorial Income Exclusion IncomeTaxReconciliationDeductionsExtraterritorialIncomeExclusion	0	USD
CY2018	us-gaap	Income Tax Reconciliation Deductions Extraterritorial Income Exclusion IncomeTaxReconciliationDeductionsExtraterritorialIncomeExclusion	13852000	USD
CY2017	us-gaap	Income Tax Reconciliation Deductions Extraterritorial Income Exclusion IncomeTaxReconciliationDeductionsExtraterritorialIncomeExclusion	0	USD
CY2019	us-gaap	Income Tax Reconciliation Nondeductible Expense Restructuring Charges IncomeTaxReconciliationNondeductibleExpenseRestructuringCharges	0	USD
CY2018	us-gaap	Income Tax Reconciliation Nondeductible Expense Restructuring Charges IncomeTaxReconciliationNondeductibleExpenseRestructuringCharges	3914000	USD
CY2017	us-gaap	Income Tax Reconciliation Nondeductible Expense Restructuring Charges IncomeTaxReconciliationNondeductibleExpenseRestructuringCharges	0	USD
CY2019	us-gaap	Income Tax Reconciliation Disposition Of Business IncomeTaxReconciliationDispositionOfBusiness	-1333000	USD
CY2018	us-gaap	Income Tax Reconciliation Disposition Of Business IncomeTaxReconciliationDispositionOfBusiness	3135000	USD
CY2017	us-gaap	Income Tax Reconciliation Disposition Of Business IncomeTaxReconciliationDispositionOfBusiness	0	USD
CY2019	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	8030000	USD
CY2018	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	3528000	USD
CY2017	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	-14143000	USD
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	159515000	USD
CY2018	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	107432000	USD
CY2017	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	308975000	USD
CY2019	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.234	pure
CY2018	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.200	pure
CY2017	us-gaap	Effective Income Tax Rate Reconciliation Tax Cuts And Jobs Act Of2017 Transition Tax On Accumulated Foreign Earnings Amount EffectiveIncomeTaxRateReconciliationTaxCutsAndJobsActOf2017TransitionTaxOnAccumulatedForeignEarningsAmount	140000000.0	USD
CY2017	hsic	Tax Cuts And Jobs Act Change In Tax Rate Income Tax Expense Benefit TaxCutsAndJobsActChangeInTaxRateIncomeTaxExpenseBenefit	3000000.0	USD
CY2019Q4	us-gaap	Tax Cuts And Jobs Act Of2017 Accounting Complete Date TaxCutsAndJobsActOf2017AccountingCompleteDate	2018-12-29
CY2018	us-gaap	Effective Income Tax Rate Reconciliation Tax Cuts And Jobs Act Of2017 Transition Tax On Accumulated Foreign Earnings Amount EffectiveIncomeTaxRateReconciliationTaxCutsAndJobsActOf2017TransitionTaxOnAccumulatedForeignEarningsAmount	-10000000.0	USD
CY2018	hsic	Tax Cuts And Jobs Act Change In Tax Rate Income Tax Expense Benefit TaxCutsAndJobsActChangeInTaxRateIncomeTaxExpenseBenefit	-1700000	USD
CY2017	hsic	Effective Income Tax Rate Excluding Unfavorable Response To Petition EffectiveIncomeTaxRateExcludingUnfavorableResponseToPetition	0.264	pure
CY2017	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.491	pure
CY2019Q4	us-gaap	Tax Cuts And Jobs Act Of2017 Transition Tax For Accumulated Foreign Earnings Liability Current TaxCutsAndJobsActOf2017TransitionTaxForAccumulatedForeignEarningsLiabilityCurrent	9900000	USD
CY2018Q4	us-gaap	Tax Cuts And Jobs Act Of2017 Transition Tax For Accumulated Foreign Earnings Liability Current TaxCutsAndJobsActOf2017TransitionTaxForAccumulatedForeignEarningsLiabilityCurrent	94900000	USD
CY2017Q4	us-gaap	Tax Cuts And Jobs Act Of2017 Transition Tax For Accumulated Foreign Earnings Liability Current TaxCutsAndJobsActOf2017TransitionTaxForAccumulatedForeignEarningsLiabilityCurrent	104200000	USD
CY2018	hsic	Effective Income Tax Rate Reconciliation Tax Cuts And Jobs Act Global Intangible Low Taxed Income Amount EffectiveIncomeTaxRateReconciliationTaxCutsAndJobsActGlobalIntangibleLowTaxedIncomeAmount	7600000	USD
CY2019	hsic	Effective Income Tax Rate Reconciliation Tax Cuts And Jobs Act Global Intangible Low Taxed Income Amount EffectiveIncomeTaxRateReconciliationTaxCutsAndJobsActGlobalIntangibleLowTaxedIncomeAmount	3900000	USD
CY2019	hsic	Unrecognized Tax Benefits Including Accrued Interest UnrecognizedTaxBenefitsIncludingAccruedInterest	109100000	USD
CY2019Q4	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	91200000	USD
CY2019Q4	us-gaap	Unrecognized Tax Benefits Interest On Income Taxes Accrued UnrecognizedTaxBenefitsInterestOnIncomeTaxesAccrued	18000000.0	USD
CY2018Q4	us-gaap	Unrecognized Tax Benefits Interest On Income Taxes Accrued UnrecognizedTaxBenefitsInterestOnIncomeTaxesAccrued	15600000	USD
CY2019Q4	us-gaap	Unrecognized Tax Benefits Income Tax Penalties Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAccrued	0	USD
CY2018Q4	us-gaap	Unrecognized Tax Benefits Income Tax Penalties Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAccrued	0	USD
CY2017Q4	us-gaap	Unrecognized Tax Benefits Income Tax Penalties Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAccrued	0	USD
CY2018Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	77800000	USD
CY2017Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	83200000	USD
CY2016Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	82200000	USD
CY2019	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	4900000	USD
CY2018	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	5000000	USD
CY2017	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	8500000	USD
CY2019	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	17300000	USD
CY2018	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	9400000	USD
CY2017	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	5400000	USD
CY2019	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	1000000	USD
CY2018	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	1600000	USD
CY2017	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	800000	USD
CY2019	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	4200000	USD
CY2018	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	1600000	USD
CY2017	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	10500000	USD
CY2019	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	3700000	USD
CY2018	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	16600000	USD
CY2017	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	1600000	USD
CY2019Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	91100000	USD
CY2018Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	77800000	USD
CY2017Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	83200000	USD
CY2019	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	9985803000	USD
CY2018	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	9417603000	USD
CY2019	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	2
CY2019Q4	us-gaap	Number Of Countries In Which Entity Operates NumberOfCountriesInWhichEntityOperates	31
CY2019	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	9985803000	USD
CY2018	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	9417603000	USD
CY2017	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	8883438000	USD
CY2019	us-gaap	Operating Income Loss OperatingIncomeLoss	718261000	USD
CY2018	us-gaap	Operating Income Loss OperatingIncomeLoss	600619000	USD
CY2017	us-gaap	Operating Income Loss OperatingIncomeLoss	669761000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	680307000	USD
CY2018	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	536836000	USD
CY2019	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	184942000	USD
CY2018	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	143630000	USD
CY2017	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	133855000	USD
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	159515000	USD
CY2018	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	107432000	USD
CY2017	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	308975000	USD
CY2019	us-gaap	Investment Income Interest InvestmentIncomeInterest	15757000	USD
CY2018	us-gaap	Investment Income Interest InvestmentIncomeInterest	15491000	USD
CY2017	us-gaap	Investment Income Interest InvestmentIncomeInterest	12438000	USD
CY2019	us-gaap	Interest Expense InterestExpense	50792000	USD
CY2018	us-gaap	Interest Expense InterestExpense	76016000	USD
CY2017	us-gaap	Interest Expense InterestExpense	51066000	USD
CY2019	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	76219000	USD
CY2018	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	71283000	USD
CY2017	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	62404000	USD
CY2019Q4	us-gaap	Assets Assets	7151101000	USD
CY2018Q4	us-gaap	Assets Assets	8500527000	USD
CY2017Q4	us-gaap	Assets Assets	7863995000	USD
CY2019	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	9985803000	USD
CY2019Q4	us-gaap	Noncurrent Assets NoncurrentAssets	3596680000	USD
CY2018	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	9417603000	USD
CY2018Q4	us-gaap	Noncurrent Assets NoncurrentAssets	2771281000	USD
CY2017	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	8883438000	USD
CY2016Q4	us-gaap	Noncurrent Assets NoncurrentAssets	2281200000	USD
CY2019	us-gaap	Allocated Share Based Compensation Expense Net Of Tax AllocatedShareBasedCompensationExpenseNetOfTax	34400000	USD
CY2018	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	32600000	USD
CY2018	us-gaap	Allocated Share Based Compensation Expense Net Of Tax AllocatedShareBasedCompensationExpenseNetOfTax	25300000	USD
CY2017	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	36800000	USD
CY2017	us-gaap	Allocated Share Based Compensation Expense Net Of Tax AllocatedShareBasedCompensationExpenseNetOfTax	20600000	USD
CY2019Q4	us-gaap	Unrecorded Unconditional Purchase Obligation Balance On First Anniversary UnrecordedUnconditionalPurchaseObligationBalanceOnFirstAnniversary	403241000	USD
CY2019	us-gaap	Excess Tax Benefit From Share Based Compensation Financing Activities ExcessTaxBenefitFromShareBasedCompensationFinancingActivities	0	USD
CY2018	us-gaap	Excess Tax Benefit From Share Based Compensation Financing Activities ExcessTaxBenefitFromShareBasedCompensationFinancingActivities	0	USD
CY2019	us-gaap	Deferred Compensation Arrangement With Individual Fair Value Of Shares Issued DeferredCompensationArrangementWithIndividualFairValueOfSharesIssued	600000	USD
CY2019	hsic	Share Based Compensation Arrangement By Share Based Payment Award Options And Other Equity Instruments Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAndOtherEquityInstrumentsGrantsInPeriodWeightedAverageGrantDateFairValue	56.83
CY2018	hsic	Share Based Compensation Arrangement By Share Based Payment Award Options And Other Equity Instruments Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAndOtherEquityInstrumentsGrantsInPeriodWeightedAverageGrantDateFairValue	71.38
CY2017	hsic	Share Based Compensation Arrangement By Share Based Payment Award Options And Other Equity Instruments Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAndOtherEquityInstrumentsGrantsInPeriodWeightedAverageGrantDateFairValue	85.43
CY2019Q4	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized	84800000	USD
CY2019	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Period For Recognition1 EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1	P2Y
CY2018	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	3100000	USD
CY2017	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	5300000	USD
CY2019	us-gaap	Employee Service Share Based Compensation Tax Benefit From Exercise Of Stock Options EmployeeServiceShareBasedCompensationTaxBenefitFromExerciseOfStockOptions	0	USD
CY2018	us-gaap	Employee Service Share Based Compensation Tax Benefit From Exercise Of Stock Options EmployeeServiceShareBasedCompensationTaxBenefitFromExerciseOfStockOptions	0	USD
CY2019Q4	us-gaap	Unrecorded Unconditional Purchase Obligation Balance On Second Anniversary UnrecordedUnconditionalPurchaseObligationBalanceOnSecondAnniversary	208200000	USD
CY2019Q4	us-gaap	Unrecorded Unconditional Purchase Obligation Balance On Third Anniversary UnrecordedUnconditionalPurchaseObligationBalanceOnThirdAnniversary	110800000	USD
CY2019Q4	us-gaap	Unrecorded Unconditional Purchase Obligation Balance On Fourth Anniversary UnrecordedUnconditionalPurchaseObligationBalanceOnFourthAnniversary	0	USD
CY2019Q4	us-gaap	Unrecorded Unconditional Purchase Obligation Balance On Fifth Anniversary UnrecordedUnconditionalPurchaseObligationBalanceOnFifthAnniversary	0	USD
CY2019Q4	us-gaap	Unrecorded Unconditional Purchase Obligation Due After Five Years UnrecordedUnconditionalPurchaseObligationDueAfterFiveYears	0	USD
CY2019Q4	us-gaap	Unrecorded Unconditional Purchase Obligation Balance Sheet Amount UnrecordedUnconditionalPurchaseObligationBalanceSheetAmount	722241000	USD
CY2019	us-gaap	Loss Contingency Managements Assessment And Process LossContingencyManagementsAssessmentAndProcess	As of December 28, 2019, we had accrued our best estimate of potential losses relating to claims that were probable to result in liability and for which we were able to reasonably estimate a loss. This accrued amount, as well as related expenses, was not material to our financial position, results of operations or cash flows. Our method for determining estimated losses considers currently available facts, presently enacted laws and regulations and other factors, including probable recoveries from third parties.
CY2019Q1	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	2360268000	USD
CY2019Q2	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	2447827000	USD
CY2019Q3	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	2508767000	USD
CY2019Q4	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	2668941000	USD
CY2019Q1	us-gaap	Gross Profit GrossProfit	751690000	USD
CY2019Q2	us-gaap	Gross Profit GrossProfit	767431000	USD
CY2019Q3	us-gaap	Gross Profit GrossProfit	761167000	USD
CY2019Q4	us-gaap	Gross Profit GrossProfit	810598000	USD
CY2019Q1	us-gaap	Restructuring Settlement And Impairment Provisions RestructuringSettlementAndImpairmentProvisions	4641000	USD
CY2019Q2	us-gaap	Restructuring Settlement And Impairment Provisions RestructuringSettlementAndImpairmentProvisions	11925000	USD
CY2019Q3	us-gaap	Restructuring Settlement And Impairment Provisions RestructuringSettlementAndImpairmentProvisions	-802000	USD
CY2019Q4	us-gaap	Restructuring Settlement And Impairment Provisions RestructuringSettlementAndImpairmentProvisions	-1059000	USD
CY2019Q1	us-gaap	Operating Income Loss OperatingIncomeLoss	172441000	USD
CY2019Q2	us-gaap	Operating Income Loss OperatingIncomeLoss	162288000	USD
CY2019Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	187198000	USD
CY2019Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.78
CY2018Q3	us-gaap	Gross Profit GrossProfit	722359000	USD
CY2018Q4	us-gaap	Gross Profit GrossProfit	750931000	USD
CY2019Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.27
CY2019Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.78
CY2019Q4	us-gaap	Operating Income Loss OperatingIncomeLoss	196334000	USD
CY2019Q1	us-gaap	Equity Method Investment Realized Gain Loss On Disposal EquityMethodInvestmentRealizedGainLossOnDisposal	0	USD
CY2019Q2	us-gaap	Equity Method Investment Realized Gain Loss On Disposal EquityMethodInvestmentRealizedGainLossOnDisposal	0	USD
CY2019Q3	us-gaap	Equity Method Investment Realized Gain Loss On Disposal EquityMethodInvestmentRealizedGainLossOnDisposal	0	USD
CY2019Q4	us-gaap	Equity Method Investment Realized Gain Loss On Disposal EquityMethodInvestmentRealizedGainLossOnDisposal	186769000	USD
CY2019Q1	us-gaap	Profit Loss ProfitLoss	123640000	USD
CY2019Q2	us-gaap	Profit Loss ProfitLoss	121417000	USD
CY2019Q3	us-gaap	Profit Loss ProfitLoss	143212000	USD
CY2019Q4	us-gaap	Profit Loss ProfitLoss	337192000	USD
CY2019Q1	us-gaap	Net Income Loss NetIncomeLoss	118413000	USD
CY2019Q2	us-gaap	Net Income Loss NetIncomeLoss	116753000	USD
CY2019Q3	us-gaap	Net Income Loss NetIncomeLoss	134916000	USD
CY2019Q4	us-gaap	Net Income Loss NetIncomeLoss	330609000	USD
CY2019Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.79
CY2019Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.79
CY2019Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.92
CY2019Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.91
CY2019Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.25
CY2018Q1	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	2273450000	USD
CY2018Q2	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	2316032000	USD
CY2018Q3	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	2355565000	USD
CY2018Q4	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	2472556000	USD
CY2018Q1	us-gaap	Gross Profit GrossProfit	719129000	USD
CY2018Q2	us-gaap	Gross Profit GrossProfit	718328000	USD
CY2018Q1	us-gaap	Gain Loss Related To Litigation Settlement GainLossRelatedToLitigationSettlement	0	USD
CY2018Q2	us-gaap	Gain Loss Related To Litigation Settlement GainLossRelatedToLitigationSettlement	0	USD
CY2018Q3	us-gaap	Gain Loss Related To Litigation Settlement GainLossRelatedToLitigationSettlement	38488000	USD
CY2018Q4	us-gaap	Gain Loss Related To Litigation Settlement GainLossRelatedToLitigationSettlement	0	USD
CY2018Q1	us-gaap	Restructuring Settlement And Impairment Provisions RestructuringSettlementAndImpairmentProvisions	2675000	USD
CY2018Q2	us-gaap	Restructuring Settlement And Impairment Provisions RestructuringSettlementAndImpairmentProvisions	8497000	USD
CY2018Q3	us-gaap	Restructuring Settlement And Impairment Provisions RestructuringSettlementAndImpairmentProvisions	8551000	USD
CY2018Q4	us-gaap	Restructuring Settlement And Impairment Provisions RestructuringSettlementAndImpairmentProvisions	34644000	USD
CY2018Q1	us-gaap	Operating Income Loss OperatingIncomeLoss	162240000	USD
CY2018Q2	us-gaap	Operating Income Loss OperatingIncomeLoss	157108000	USD
CY2018Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	123269000	USD
CY2018Q4	us-gaap	Operating Income Loss OperatingIncomeLoss	158002000	USD
CY2018Q1	us-gaap	Profit Loss ProfitLoss	114717000	USD
CY2018Q2	us-gaap	Profit Loss ProfitLoss	114591000	USD
CY2018Q3	us-gaap	Profit Loss ProfitLoss	96247000	USD
CY2018Q4	us-gaap	Profit Loss ProfitLoss	124886000	USD
CY2018Q1	us-gaap	Net Income Loss NetIncomeLoss	111534000	USD
CY2018Q2	us-gaap	Net Income Loss NetIncomeLoss	110636000	USD
CY2018Q3	us-gaap	Net Income Loss NetIncomeLoss	90770000	USD
CY2018Q4	us-gaap	Net Income Loss NetIncomeLoss	117777000	USD
CY2018Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.73
CY2018Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.72
CY2018Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.60
CY2018Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.78
CY2018Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.72
CY2018Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.59
CY2018Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.77
CY2019	us-gaap	Interest Paid Net InterestPaidNet	54685000	USD
CY2018	us-gaap	Interest Paid Net InterestPaidNet	69371000	USD
CY2017	us-gaap	Interest Paid Net InterestPaidNet	46985000	USD
CY2019	us-gaap	Income Taxes Paid IncomeTaxesPaid	177277000	USD
CY2018	us-gaap	Income Taxes Paid IncomeTaxesPaid	236479000	USD
CY2017	us-gaap	Income Taxes Paid IncomeTaxesPaid	214135000	USD
CY2019	us-gaap	Noncash Or Part Noncash Acquisition Debt Assumed1 NoncashOrPartNoncashAcquisitionDebtAssumed1	0.0	USD
CY2018	us-gaap	Noncash Or Part Noncash Acquisition Debt Assumed1 NoncashOrPartNoncashAcquisitionDebtAssumed1	0.0	USD
CY2017	us-gaap	Noncash Or Part Noncash Acquisition Debt Assumed1 NoncashOrPartNoncashAcquisitionDebtAssumed1	300000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification Before Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationBeforeTax	-4900000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification Before Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationBeforeTax	1000000.0	USD
CY2018	us-gaap	Noncash Or Part Noncash Acquisition Net Nonmonetary Assets Acquired Liabilities Assumed1 NoncashOrPartNoncashAcquisitionNetNonmonetaryAssetsAcquiredLiabilitiesAssumed1	16800000	USD

Files In Submission

Name	View Source	Status
0001000228-20-000018-index-headers.html	Edgar Link	pending
0001000228-20-000018-index.html	Edgar Link	pending
0001000228-20-000018.txt	Edgar Link	pending
0001000228-20-000018-xbrl.zip	Edgar Link	pending
d848607dex1018.htm	Edgar Link	pending
d848607dex1032.htm	Edgar Link	pending
d848607dex211.htm	Edgar Link	pending
d848607dex311.htm	Edgar Link	pending
d848607dex312.htm	Edgar Link	pending
d848607dex321.htm	Edgar Link	pending
d848607dex44.htm	Edgar Link	pending
exhibit231.htm	Edgar Link	pending
FilingSummary.xml	Edgar Link	unprocessable
Financial_Report.xlsx	Edgar Link	pending
hsic-20191228.htm	Edgar Link	pending
hsic-20191228.xsd	Edgar Link	pending
hsic-20191228_cal.xml	Edgar Link	unprocessable
hsic-20191228_def.xml	Edgar Link	unprocessable
hsic-20191228_htm.xml	Edgar Link	completed
hsic-20191228_lab.xml	Edgar Link	unprocessable
hsic-20191228_pre.xml	Edgar Link	unprocessable
image_000.gif	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
R102.htm	Edgar Link	pending
R103.htm	Edgar Link	pending
R104.htm	Edgar Link	pending
R105.htm	Edgar Link	pending
R106.htm	Edgar Link	pending
R11.htm	Edgar Link	pending
R12.htm	Edgar Link	pending
R13.htm	Edgar Link	pending
R14.htm	Edgar Link	pending
R15.htm	Edgar Link	pending
R16.htm	Edgar Link	pending
R17.htm	Edgar Link	pending
R18.htm	Edgar Link	pending
R19.htm	Edgar Link	pending
R2.htm	Edgar Link	pending
R20.htm	Edgar Link	pending
R21.htm	Edgar Link	pending
R22.htm	Edgar Link	pending
R23.htm	Edgar Link	pending
R24.htm	Edgar Link	pending
R25.htm	Edgar Link	pending
R26.htm	Edgar Link	pending
R27.htm	Edgar Link	pending
R28.htm	Edgar Link	pending
R29.htm	Edgar Link	pending
R3.htm	Edgar Link	pending
R30.htm	Edgar Link	pending
R31.htm	Edgar Link	pending
R32.htm	Edgar Link	pending
R33.htm	Edgar Link	pending
R34.htm	Edgar Link	pending
R35.htm	Edgar Link	pending
R36.htm	Edgar Link	pending
R37.htm	Edgar Link	pending
R38.htm	Edgar Link	pending
R39.htm	Edgar Link	pending
R4.htm	Edgar Link	pending
R40.htm	Edgar Link	pending
R41.htm	Edgar Link	pending
R42.htm	Edgar Link	pending
R43.htm	Edgar Link	pending
R44.htm	Edgar Link	pending
R45.htm	Edgar Link	pending
R46.htm	Edgar Link	pending
R47.htm	Edgar Link	pending
R48.htm	Edgar Link	pending
R49.htm	Edgar Link	pending
R5.htm	Edgar Link	pending
R50.htm	Edgar Link	pending
R51.htm	Edgar Link	pending
R52.htm	Edgar Link	pending
R53.htm	Edgar Link	pending
R54.htm	Edgar Link	pending
R55.htm	Edgar Link	pending
R56.htm	Edgar Link	pending
R57.htm	Edgar Link	pending
R58.htm	Edgar Link	pending
R59.htm	Edgar Link	pending
R6.htm	Edgar Link	pending
R60.htm	Edgar Link	pending
R61.htm	Edgar Link	pending
R62.htm	Edgar Link	pending
R63.htm	Edgar Link	pending
R64.htm	Edgar Link	pending
R65.htm	Edgar Link	pending
R66.htm	Edgar Link	pending
R67.htm	Edgar Link	pending
R68.htm	Edgar Link	pending
R69.htm	Edgar Link	pending
R7.htm	Edgar Link	pending
R70.htm	Edgar Link	pending
R71.htm	Edgar Link	pending
R72.htm	Edgar Link	pending
R73.htm	Edgar Link	pending
R74.htm	Edgar Link	pending
R75.htm	Edgar Link	pending
R76.htm	Edgar Link	pending
R77.htm	Edgar Link	pending
R78.htm	Edgar Link	pending
R79.htm	Edgar Link	pending
R8.htm	Edgar Link	pending
R80.htm	Edgar Link	pending
R81.htm	Edgar Link	pending
R82.htm	Edgar Link	pending
R83.htm	Edgar Link	pending
R84.htm	Edgar Link	pending
R85.htm	Edgar Link	pending
R86.htm	Edgar Link	pending
R87.htm	Edgar Link	pending
R88.htm	Edgar Link	pending
R89.htm	Edgar Link	pending
R9.htm	Edgar Link	pending
R90.htm	Edgar Link	pending
R91.htm	Edgar Link	pending
R92.htm	Edgar Link	pending
R93.htm	Edgar Link	pending
R94.htm	Edgar Link	pending
R95.htm	Edgar Link	pending
R96.htm	Edgar Link	pending
R97.htm	Edgar Link	pending
R98.htm	Edgar Link	pending
R99.htm	Edgar Link	pending
report.css	Edgar Link	pending
Show.js	Edgar Link	pending

Create your account

Find Stocks Worth Researching

Deeply Understand Businesses

Value Businesses Intelligently

$HSIC
HENRY SCHEIN INC Stock $hsic

2019 Q4 Form 10-K Financial Statement

#000100022820000018 Filed on February 20, 2020

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$HSIC HENRY SCHEIN INC Stock $hsic

2019 Q4 Form 10-K Financial Statement

#000100022820000018 Filed on February 20, 2020

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$HSIC
HENRY SCHEIN INC Stock $hsic