$HSIC
HENRY SCHEIN INC Stock $hsic

$hsic Overview Financials Valuation SEC Filings Company Website

2017 Q4 Form 10-K Financial Statement

#000100022818000012 Filed on February 21, 2018

Income Statement

Concept	2017 Q4	2016 Q4	2016 Q3
Revenue	$3.318B	$3.121B	$2.865B
YoY Change	6.32%	9.47%	6.68%
Cost Of Revenue	$2.417B	$2.261B	$2.077B
YoY Change	6.89%	10.23%	7.26%
Gross Profit	$901.0M	$859.5M	$787.7M
YoY Change	4.82%	7.53%	5.18%
Gross Profit Margin	27.15%	27.54%	27.49%
Selling, General & Admin	$659.8M	$629.4M	$581.6M
YoY Change	4.83%	7.37%	5.44%
% of Gross Profit	73.23%	73.23%	73.84%
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$51.80M	$44.00M	$42.40M
YoY Change	17.73%	9.45%	-0.7%
% of Gross Profit	5.75%	5.12%	5.38%
Operating Expenses	$659.8M	$629.5M	$581.6M
YoY Change	4.81%	7.39%	5.44%
Operating Profit	$241.2M	$230.0M	$200.7M
YoY Change	4.87%	14.6%	6.27%
Interest Expense	-$12.20M	-$6.700M	$7.488M
YoY Change	82.09%	63.41%	18.91%
% of Operating Profit	-5.06%	-2.91%	3.73%
Other Income/Expense, Net	-$900.0K	-$300.0K	-$199.0K
YoY Change	200.0%	-250.0%	-28.16%
Pretax Income	$228.0M	$207.0M	$196.2M
YoY Change	10.14%	5.18%	5.79%
Income Tax	$63.30M	$58.90M	$56.60M
% Of Pretax Income	27.76%	28.45%	28.85%
Net Earnings	-$8.535M	$139.2M	$133.7M
YoY Change	-106.13%	7.12%	4.68%
Net Earnings / Revenue	-0.26%	4.46%	4.67%
Basic Earnings Per Share	-$0.06		$0.83
Diluted Earnings Per Share	-$0.06	$864.6K	$0.82
COMMON SHARES
Basic Shares Outstanding	157.0M shares		161.8M shares
Diluted Shares Outstanding			163.7M shares

Balance Sheet

Concept	2017 Q4	2016 Q4	2016 Q3
SHORT-TERM ASSETS
Cash & Short-Term Investments	$174.7M	$62.40M	$76.20M
YoY Change	179.97%	-13.45%	25.95%
Cash & Equivalents	$158.0M	$62.38M	$76.19M
Short-Term Investments
Other Short-Term Assets	$454.8M	$360.5M	$373.8M
YoY Change	26.16%	-14.02%	-9.07%
Inventory	$1.934B	$1.666B	$1.468B
Prepaid Expenses
Receivables	$1.523B	$1.254B	$1.368B
Other Receivables	$0.00	$0.00	$0.00
Total Short-Term Assets	$4.086B	$3.343B	$3.286B
YoY Change	22.23%	3.46%	5.31%
LONG-TERM ASSETS
Property, Plant & Equipment	$375.0M	$333.9M	$324.1M
YoY Change	12.31%	4.84%	3.91%
Goodwill	$1.554B	$2.020B
YoY Change	-23.08%	5.88%
Intangibles	$669.6M	$621.2M
YoY Change	7.8%	4.76%
Long-Term Investments	$432.0M	$442.8M	$454.7M
YoY Change	-2.44%	37.9%	7.57%
Other Assets
YoY Change
Total Long-Term Assets	$3.778B	$3.469B	$3.348B
YoY Change	8.91%	5.0%	2.96%
TOTAL ASSETS
Total Short-Term Assets	$4.086B	$3.343B	$3.286B
Total Long-Term Assets	$3.778B	$3.469B	$3.348B
Total Assets	$7.864B	$6.812B	$6.634B
YoY Change	15.45%	4.24%	4.11%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$1.153B	$1.007B	$931.1M
YoY Change	14.47%	0.14%	6.56%
Accrued Expenses	$728.8M	$658.2M	$599.8M
YoY Change	10.73%	3.9%	8.11%
Deferred Revenue	$85.70M
YoY Change
Short-Term Debt	$741.7M	$437.5M	$333.1M
YoY Change	69.53%	33.14%	78.22%
Long-Term Debt Due	$16.70M	$65.90M	$17.50M
YoY Change	-74.66%	280.92%	20.69%
Total Short-Term Liabilities	$2.829B	$2.321B	$2.040B
YoY Change	21.9%	8.09%	13.49%
LONG-TERM LIABILITIES
Long-Term Debt	$907.8M	$715.5M	$718.0M
YoY Change	26.88%	54.27%	20.25%
Other Long-Term Liabilities	$420.0M	$264.3M	$257.8M
YoY Change	58.95%	24.58%	27.38%
Total Long-Term Liabilities	$420.0M	$264.3M	$975.8M
YoY Change	58.95%	24.58%	382.15%
TOTAL LIABILITIES
Total Short-Term Liabilities	$2.829B	$2.321B	$2.040B
Total Long-Term Liabilities	$420.0M	$264.3M	$975.8M
Total Liabilities	$4.207B	$3.352B	$3.738B
YoY Change	25.52%	8.98%	31.4%
SHAREHOLDERS EQUITY
Retained Earnings	$2.943B	$2.982B
YoY Change	-1.31%	2.96%
Common Stock	$0.00	$126.7M
YoY Change	-100.0%	-38.88%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$2.811B	$2.793B	$2.895B
YoY Change
Total Liabilities & Shareholders Equity	$7.864B	$6.760B	$6.634B
YoY Change	16.32%	3.93%	4.11%

Cashflow Statement

Concept	2017 Q4	2016 Q4	2016 Q3
OPERATING ACTIVITIES
Net Income	-$8.535M	$139.2M	$133.7M
YoY Change	-106.13%	7.12%	4.68%
Depreciation, Depletion And Amortization	$51.80M	$44.00M	$42.40M
YoY Change	17.73%	9.45%	-0.7%
Cash From Operating Activities	$238.0M	$264.5M	$178.7M
YoY Change	-10.02%	-11.33%	66.39%
INVESTING ACTIVITIES
Capital Expenditures	-$26.20M	-$25.70M	-$18.30M
YoY Change	1.95%	31.79%	-2.66%
Acquisitions
YoY Change
Other Investing Activities	$4.700M	-$110.9M	-$41.10M
YoY Change	-104.24%	199.73%	-52.65%
Cash From Investing Activities	-$21.50M	-$136.6M	-$59.40M
YoY Change	-84.26%	141.77%	-43.75%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	-128.7M	-129.0M	-106.4M
YoY Change	-0.23%	-41.73%	-668.98%
NET CHANGE
Cash From Operating Activities	238.0M	264.5M	178.7M
Cash From Investing Activities	-21.50M	-136.6M	-59.40M
Cash From Financing Activities	-128.7M	-129.0M	-106.4M
Net Change In Cash	87.80M	-1.100M	12.90M
YoY Change	-8081.82%	-105.39%	-37.07%
FREE CASH FLOW
Cash From Operating Activities	$238.0M	$264.5M	$178.7M
Capital Expenditures	-$26.20M	-$25.70M	-$18.30M
Free Cash Flow	$264.2M	$290.2M	$197.0M
YoY Change	-8.96%	-8.68%	56.1%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2017	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	200440000	USD
CY2016Q4	us-gaap	Notes And Loans Receivable Net Noncurrent NotesAndLoansReceivableNetNoncurrent	27492000	USD
CY2016	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	169780000	USD
CY2015Q4	us-gaap	Accumulated Other Comprehensive Income Loss Cumulative Changes In Net Gain Loss From Cash Flow Hedges Effect Net Of Tax AccumulatedOtherComprehensiveIncomeLossCumulativeChangesInNetGainLossFromCashFlowHedgesEffectNetOfTax	939000	USD
CY2017Q3	us-gaap	Gross Profit GrossProfit	839173000	USD
CY2017Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.01
CY2017Q4	us-gaap	Accumulated Other Comprehensive Income Loss Cumulative Changes In Net Gain Loss From Cash Flow Hedges Effect Net Of Tax AccumulatedOtherComprehensiveIncomeLossCumulativeChangesInNetGainLossFromCashFlowHedgesEffectNetOfTax	-782000	USD
CY2017Q4	us-gaap	Capitalized Computer Software Net CapitalizedComputerSoftwareNet	35359000	USD
CY2017	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	158208000	shares
CY2016	us-gaap	Other Depreciation And Amortization OtherDepreciationAndAmortization	7800000	USD
CY2015Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-219939000	USD
CY2017	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	485000	USD
CY2016	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Adjustment Net Of Tax Portion Attributable To Noncontrolling Interest OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToNoncontrollingInterest	-2689000	USD
CY2016Q4	us-gaap	Long Term Debt And Capital Lease Obligations Current LongTermDebtAndCapitalLeaseObligationsCurrent	65923000	USD
CY2016Q4	us-gaap	Goodwill Goodwill	2019740000	USD
CY2017	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	156787000	shares
CY2017Q4	us-gaap	Capital Leases Future Minimum Payments Due Current CapitalLeasesFutureMinimumPaymentsDueCurrent	1678000	USD
CY2016Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.83
CY2017Q4	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	0	shares
CY2015	us-gaap	Shipping Handling And Transportation Costs ShippingHandlingAndTransportationCosts	78700000	USD
CY2016Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	530838000	USD
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.88
CY2015	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Before Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeTax	-3278000	USD
CY2016	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Before Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeTax	947000	USD
CY2017	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	649657000	USD
CY2015	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-6241000	USD
CY2016Q4	us-gaap	Intangible Assets Gross Excluding Goodwill IntangibleAssetsGrossExcludingGoodwill	1027533000	USD
CY2016	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	98200000	USD
CY2015	us-gaap	Adjustments Related To Tax Withholding For Share Based Compensation AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation	28314000	USD
CY2016	us-gaap	Fiscal Period Duration FiscalPeriodDuration	P372D
CY2015	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	720758000	USD
CY2017	hsic	Consolidated Tax Return Inclusion Threshold Percentage ConsolidatedTaxReturnInclusionThresholdPercentage	0.8	pure
CY2015Q4	us-gaap	Restructuring Reserve RestructuringReserve	12065000	USD
CY2015	hsic	Distribution Network Costs DistributionNetworkCosts	70400000	USD
CY2016	us-gaap	Temporary Equity Stock Issued During Period Value New Issues TemporaryEquityStockIssuedDuringPeriodValueNewIssues	58172000	USD
CY2017	us-gaap	Noncash Or Part Noncash Acquisition Debt Assumed1 NoncashOrPartNoncashAcquisitionDebtAssumed1	400000	USD
CY2017	us-gaap	Income Taxes Paid IncomeTaxesPaid	221832000	USD
CY2017Q4	us-gaap	Unrecorded Unconditional Purchase Obligation Balance On Fifth Anniversary UnrecordedUnconditionalPurchaseObligationBalanceOnFifthAnniversary	118325000	USD
CY2016Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards Foreign DeferredTaxAssetsOperatingLossCarryforwardsForeign	44493000	USD
CY2017Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	39469000	USD
CY2016Q4	us-gaap	Lines Of Credit Current LinesOfCreditCurrent	437476000	USD
CY2017Q4	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	0	USD
CY2016	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	2879000	USD
CY2016	us-gaap	Income Tax Reconciliation Foreign Income Tax Rate Differential IncomeTaxReconciliationForeignIncomeTaxRateDifferential	-18036000	USD
CY2016Q4	us-gaap	Deferred Tax Liabilities Noncurrent DeferredTaxLiabilitiesNoncurrent	51589000	USD
CY2016Q4	us-gaap	Liabilities Current LiabilitiesCurrent	2320646000	USD
CY2017	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.59
CY2016Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	2981777000	USD
CY2015	hsic	Income Tax Reconciliation Interest Expense Related To Loans IncomeTaxReconciliationInterestExpenseRelatedToLoans	-22415000	USD
CY2015	us-gaap	Income Tax Reconciliation Tax Contingencies IncomeTaxReconciliationTaxContingencies	13867000	USD
CY2017Q4	us-gaap	Minority Interest MinorityInterest	12911000	USD
CY2016	us-gaap	Goodwill Acquired During Period GoodwillAcquiredDuringPeriod	145805000	USD
CY2017	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	112277000	USD
CY2016	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-327344000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	191886000	USD
CY2016	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-99791000	USD
CY2015	us-gaap	Other Comprehensive Income Loss Derivatives Qualifying As Hedges Tax OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesTax	153000	USD
CY2015	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	-3542000	USD
CY2015	us-gaap	Operating Income Loss OperatingIncomeLoss	733972000	USD
CY2017Q4	us-gaap	Number Of Countries In Which Entity Operates NumberOfCountriesInWhichEntityOperates	34
CY2015	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	134000	USD
CY2016	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	11236000	USD
CY2016	us-gaap	Excess Tax Benefit From Share Based Compensation Financing Activities ExcessTaxBenefitFromShareBasedCompensationFinancingActivities	-463000	USD
CY2016Q4	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	0	shares
CY2016Q4	us-gaap	Investments In Affiliates Subsidiaries Associates And Joint Ventures InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures	299249000	USD
CY2016Q2	us-gaap	Gross Profit GrossProfit	801469000	USD
CY2017	us-gaap	Payments To Minority Shareholders PaymentsToMinorityShareholders	35192000	USD
CY2017Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	240000000	shares
CY2017	us-gaap	Interest Paid Net InterestPaidNet	49311000	USD
CY2017	us-gaap	Goodwill Acquired During Period GoodwillAcquiredDuringPeriod	224880000	USD
CY2016Q4	us-gaap	Assets Assets	6760396000	USD
CY2015	us-gaap	Payments To Acquire Businesses And Interest In Affiliates PaymentsToAcquireBusinessesAndInterestInAffiliates	171861000	USD
CY2017	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	52994000	USD
CY2016	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	550024000	USD
CY2015	us-gaap	Minority Interest Decrease From Redemptions MinorityInterestDecreaseFromRedemptions	82563000	USD
CY2017	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	10500000	USD
CY2016	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	264542000	USD
CY2015	us-gaap	Temporary Equity Accretion To Redemption Value TemporaryEquityAccretionToRedemptionValue	35202000	USD
CY2017	us-gaap	Equity Method Investment Dividends Or Distributions EquityMethodInvestmentDividendsOrDistributions	23157000	USD
CY2015Q4	us-gaap	Accumulated Other Comprehensive Income Loss Foreign Currency Translation Adjustment Net Of Tax AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax	-200499000	USD
CY2017Q4	us-gaap	Investments And Other Noncurrent Assets InvestmentsAndOtherNoncurrentAssets	432002000	USD
CY2016	us-gaap	Investment Income Interest InvestmentIncomeInterest	13275000	USD
CY2016Q4	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	360510000	USD
CY2015Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	72086000	USD
CY2017Q2	us-gaap	Restructuring Charges RestructuringCharges	0	USD
CY2017	dei	Entity Registrant Name EntityRegistrantName	HENRY SCHEIN INC
CY2017	us-gaap	Fiscal Period Duration FiscalPeriodDuration	P365D
CY2016Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	240000000	shares
CY2017Q3	us-gaap	Net Income Loss NetIncomeLoss	136055000	USD
CY2016	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	46928000	USD
CY2016	hsic	Redeemable Noncontrolling Decrease From Distributions By Redeemable Noncontrolling Interest RedeemableNoncontrollingDecreaseFromDistributionsByRedeemableNoncontrollingInterest	32973000	USD
CY2016	us-gaap	Gross Profit GrossProfit	3226473000	USD
CY2015Q4	us-gaap	Goodwill Goodwill	1907593000	USD
CY2016Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	200721000	USD
CY2017	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Period For Recognition1 EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1	P2Y
CY2017Q4	us-gaap	Capital Leases Future Minimum Payments Due In Four Years CapitalLeasesFutureMinimumPaymentsDueInFourYears	331000	USD
CY2017Q4	us-gaap	Notes And Loans Receivable Net Noncurrent NotesAndLoansReceivableNetNoncurrent	35015000	USD
CY2017Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	420285000	USD
CY2015	hsic	Changes In Fair Value Of Redeemable Securities ChangesInFairValueOfRedeemableSecurities	-35202000	USD
CY2017Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	615497000	USD
CY2015Q4	us-gaap	Redeemable Noncontrolling Interest Equity Fair Value RedeemableNoncontrollingInterestEquityFairValue	542194000	USD
CY2016Q4	us-gaap	Preferred Stock Value Outstanding PreferredStockValueOutstanding	0	USD
CY2016	hsic	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax Excluding Portion Attributable To Redeemable Noncontrolling Interest OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxExcludingPortionAttributableToRedeemableNoncontrollingInterest	-95750000	USD
CY2017	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	1990000	USD
CY2017Q4	hsic	Accumulated Other Comprehensive Income Loss Net Of Tax Including Portion Attributable To Redeemable And Nonredeemable Noncontrolling Interests AccumulatedOtherComprehensiveIncomeLossNetOfTaxIncludingPortionAttributableToRedeemableAndNonredeemableNoncontrollingInterests	-135092000	USD
CY2017Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.06
CY2017Q4	hsic	Total Noncurrent Deferred Tax Liabilities TotalNoncurrentDeferredTaxLiabilities	8246000	USD
CY2016Q4	hsic	Total Noncurrent Deferred Tax Liabilities TotalNoncurrentDeferredTaxLiabilities	8500000	USD
CY2015	us-gaap	Payments To Minority Shareholders PaymentsToMinorityShareholders	82107000	USD
CY2015	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	44614000	USD
CY2016	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesTax	0	USD
CY2017Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Four FiniteLivedIntangibleAssetsAmortizationExpenseYearFour	90400000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Before Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentBeforeTax	191886000	USD
CY2015	hsic	Income Tax Reconciliation Tax Contingencies Favorable Response To Petition IncomeTaxReconciliationTaxContingenciesFavorableResponseToPetition	6300000	USD
CY2016	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	2647000	USD
CY2017Q4	us-gaap	Sales Revenue Net SalesRevenueNet	3318054000	USD
CY2017	us-gaap	Payments To Acquire Businesses And Interest In Affiliates PaymentsToAcquireBusinessesAndInterestInAffiliates	288673000	USD
CY2017Q4	us-gaap	Line Of Credit Facility Interest Rate At Period End LineOfCreditFacilityInterestRateAtPeriodEnd	0.0227	pure
CY2017Q4	us-gaap	Bank Overdrafts BankOverdrafts	83600000	USD
CY2015	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	217632000	USD
CY2015	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	211391000	USD
CY2017	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	Yes
CY2017	dei	Trading Symbol TradingSymbol	HSIC
CY2017Q4	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	272998000	USD
CY2016	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Before Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentBeforeTax	-98402000	USD
CY2015	hsic	Payments For Restructuring And Restructuring Reserve Accrual Adjustment PaymentsForRestructuringAndRestructuringReserveAccrualAdjustment	23287000	USD
CY2017	hsic	Payments For Restructuring And Restructuring Reserve Accrual Adjustment PaymentsForRestructuringAndRestructuringReserveAccrualAdjustment	21146000	USD
CY2017	us-gaap	Income Tax Reconciliation Minority Interest Income Expense IncomeTaxReconciliationMinorityInterestIncomeExpense	11623000	USD
CY2016Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	2800804000	USD
CY2017Q3	us-gaap	Profit Loss ProfitLoss	149582000	USD
CY2017Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.88
CY2016	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	233000	USD
CY2014Q4	us-gaap	Redeemable Noncontrolling Interest Equity Fair Value RedeemableNoncontrollingInterestEquityFairValue	564527000	USD
CY2016	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	15381000	USD
CY2016Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	6760396000	USD
CY2016	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-316422000	USD
CY2017	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-112551000	USD
CY2017Q4	hsic	Deferred Tax Assets Noncurrent Inventory DeferredTaxAssetsNoncurrentInventory	6591000	USD
CY2017Q4	us-gaap	Accumulated Other Comprehensive Income Loss Defined Benefit Pension And Other Postretirement Plans Net Of Tax AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax	16843000	USD
CY2016Q4	us-gaap	Assets Current AssetsCurrent	3342780000	USD
CY2017	us-gaap	Allocated Share Based Compensation Expense Net Of Tax AllocatedShareBasedCompensationExpenseNetOfTax	23700000	USD
CY2017	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	173191000	USD
CY2015	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	168250000	shares
CY2016Q4	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	391785000	USD
CY2015	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	3184000	USD
CY2017Q4	us-gaap	Redeemable Noncontrolling Interest Equity Fair Value RedeemableNoncontrollingInterestEquityFairValue	832138000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax	-314000	USD
CY2016Q3	us-gaap	Profit Loss ProfitLoss	145291000	USD
CY2016Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	333906000	USD
CY2016	us-gaap	Employee Service Share Based Compensation Tax Benefit From Exercise Of Stock Options EmployeeServiceShareBasedCompensationTaxBenefitFromExerciseOfStockOptions	23392000	USD
CY2017	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	654380000	USD
CY2016	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	1904000	USD
CY2016Q4	us-gaap	Deferred Tax Liabilities Goodwill And Intangible Assets DeferredTaxLiabilitiesGoodwillAndIntangibleAssets	142678000	USD
CY2017	us-gaap	Increase Decrease In Other Current Assets IncreaseDecreaseInOtherCurrentAssets	85759000	USD
CY2016Q4	us-gaap	Restructuring Reserve RestructuringReserve	25703000	USD
CY2015	us-gaap	Depreciation Depreciation	60200000	USD
CY2017	us-gaap	Marketing And Advertising Expense MarketingAndAdvertisingExpense	15700000	USD
CY2016Q2	us-gaap	Operating Income Loss OperatingIncomeLoss	180677000	USD
CY2015	us-gaap	Interest Paid Net InterestPaidNet	24033000	USD
CY2017Q4	hsic	Accumulated Other Comprehensive Income Loss Foreign Currency Translation Adjustment Attributable To Redeemable Noncontrolling Interest Net Of Tax AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentAttributableToRedeemableNoncontrollingInterestNetOfTax	-5564000	USD
CY2017Q4	us-gaap	Unrecorded Unconditional Purchase Obligation Balance On Third Anniversary UnrecordedUnconditionalPurchaseObligationBalanceOnThirdAnniversary	210573000	USD
CY2016	us-gaap	Other Comprehensive Income Loss Derivatives Qualifying As Hedges Before Tax OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesBeforeTax	-1025000	USD
CY2016Q1	us-gaap	Sales Revenue Net SalesRevenueNet	2712956000	USD
CY2017Q4	us-gaap	Profit Loss ProfitLoss	8510000	USD
CY2015	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	159127000	USD
CY2017Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.86
CY2017Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	106592000	USD
CY2016Q4	us-gaap	Accumulated Other Comprehensive Income Loss Foreign Currency Translation Adjustment Net Of Tax AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax	-296212000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Derivatives Qualifying As Hedges Net Of Tax OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTax	-729000	USD
CY2017Q4	us-gaap	Long Term Debt And Capital Lease Obligations Current LongTermDebtAndCapitalLeaseObligationsCurrent	16659000	USD
CY2016Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.82
CY2016Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	158805010	shares
CY2017Q4	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0.01
CY2017	us-gaap	Other Comprehensive Income Loss Derivatives Qualifying As Hedges Before Tax OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesBeforeTax	-1515000	USD
CY2016Q2	us-gaap	Profit Loss ProfitLoss	133098000	USD
CY2017Q4	us-gaap	Deferred Tax Liabilities Goodwill And Intangible Assets DeferredTaxLiabilitiesGoodwillAndIntangibleAssets	132280000	USD
CY2015	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-3381000	USD
CY2016	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	161641000	shares
CY2016	hsic	Distribution Network Costs DistributionNetworkCosts	79400000	USD
CY2015	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	14060000	USD
CY2017Q4	us-gaap	Unrecorded Unconditional Purchase Obligation Balance Sheet Amount UnrecordedUnconditionalPurchaseObligationBalanceSheetAmount	982197000	USD
CY2017Q3	us-gaap	Sales Revenue Net SalesRevenueNet	3059458000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Foreign Currency Translation Adjustment Tax OtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentTax	0	USD
CY2017	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2017	us-gaap	Fiscal Period FiscalPeriod	<div><p style='text-align:justify;margin-top:0pt;margin-bottom:0pt;line-height:12pt;' ><font style='font-family:Times New Roman;font-size:11pt;font-style:italic;margin-left:0pt;' >Fiscal Year</font></p><p style='text-align:justify;line-height:12pt;' ></p><p style='text-align:left;margin-top:0pt;margin-bottom:0pt;line-height:12pt;' ><font style='font-family:Times New Roman;font-size:11pt;margin-left:18pt;' >We report our results of operations and cash flows on a 52</font><font style='font-family:Times New Roman;font-size:11pt;' >-53 week basis ending on the last </font><font style='font-family:Times New Roman;font-size:11pt;' >Saturday of December. The year</font><font style='font-family:Times New Roman;font-size:11pt;' > ended </font><font style='font-family:Times New Roman;font-size:11pt;' >December 30, 2017</font><font style='font-family:Times New Roman;font-size:11pt;' > consisted of 52 weeks, the year</font><font style='font-family:Times New Roman;font-size:11pt;' > ended </font><font style='font-family:Times New Roman;font-size:11pt;' >December 31, 2016</font><font style='font-family:Times New Roman;font-size:11pt;' > consisted of 53 weeks </font><font style='font-family:Times New Roman;font-size:11pt;' >and the year ended </font><font style='font-family:Times New Roman;font-size:11pt;' >December 26, 2015</font><font style='font-family:Times New Roman;font-size:11pt;' > </font><font style='font-family:Times New Roman;font-size:11pt;' >consisted of 52 </font><font style='font-family:Times New Roman;font-size:11pt;' >weeks.</font></p></div>
CY2015	us-gaap	Temporary Equity Foreign Currency Translation Adjustments TemporaryEquityForeignCurrencyTranslationAdjustments	-4790000	USD
CY2018Q1	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	153694200	shares
CY2017	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	28520000	USD
CY2017	us-gaap	Effect Of Exchange Rate On Cash And Cash Equivalents EffectOfExchangeRateOnCashAndCashEquivalents	21589000	USD
CY2016	us-gaap	Share Based Compensation ShareBasedCompensation	58246000	USD
CY2015	us-gaap	Income Tax Reconciliation Minority Interest Income Expense IncomeTaxReconciliationMinorityInterestIncomeExpense	12463000	USD
CY2017Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	174658000	USD
CY2016	us-gaap	Allocated Share Based Compensation Expense Net Of Tax AllocatedShareBasedCompensationExpenseNetOfTax	41400000	USD
CY2015	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-141000	USD
CY2015Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	2886814000	USD
CY2016	us-gaap	Minority Interest Decrease From Redemptions MinorityInterestDecreaseFromRedemptions	72729000	USD
CY2017	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	450000000	USD
CY2017Q4	us-gaap	Accumulated Other Comprehensive Income Loss Foreign Currency Translation Adjustment Net Of Tax AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax	-112439000	USD
CY2017Q4	us-gaap	Operating Leases Future Minimum Payments Due Current OperatingLeasesFutureMinimumPaymentsDueCurrent	94038000	USD
CY2017Q4	hsic	Distribution Rights And Exclusivity Agreements Net Of Amortization DistributionRightsAndExclusivityAgreementsNetOfAmortization	1378000	USD
CY2017Q2	us-gaap	Gross Profit GrossProfit	822920000	USD
CY2016Q4	us-gaap	Common Stock Value Outstanding CommonStockValueOutstanding	1588000	USD
CY2015	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.85
	us-gaap	Sales Revenue Net SalesRevenueNet	3120934000	USD
CY2017Q4	us-gaap	Operating Leases Future Minimum Payments Due In Two Years OperatingLeasesFutureMinimumPaymentsDueInTwoYears	75235000	USD
	us-gaap	Net Income Loss NetIncomeLoss	139216000	USD
CY2017Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	153690146	shares
CY2017Q4	us-gaap	Long Term Debt And Capital Lease Obligations Including Current Maturities LongTermDebtAndCapitalLeaseObligationsIncludingCurrentMaturities	924415000	USD
CY2017Q4	us-gaap	Operating Income Loss OperatingIncomeLoss	241191000	USD
CY2017Q3	us-gaap	Net Income Loss NetIncomeLoss	138031000	USD
CY2017Q4	us-gaap	Unrecognized Tax Benefits Interest On Income Taxes Accrued UnrecognizedTaxBenefitsInterestOnIncomeTaxesAccrued	14200000	USD
CY2017	us-gaap	Deferred Compensation Arrangement With Individual Fair Value Of Shares Issued DeferredCompensationArrangementWithIndividualFairValueOfSharesIssued	800000	USD
CY2016Q4	hsic	Deferred Tax Assets Noncurrent Tax Deferred Expense Reserves And Accruals Reserves DeferredTaxAssetsNoncurrentTaxDeferredExpenseReservesAndAccrualsReserves	29422000	USD
CY2017Q4	us-gaap	Deferred Tax Assets Valuation Allowance Noncurrent DeferredTaxAssetsValuationAllowanceNoncurrent	31223000	USD
CY2016Q4	us-gaap	Deferred Tax Assets Valuation Allowance Noncurrent DeferredTaxAssetsValuationAllowanceNoncurrent	26403000	USD
CY2017	us-gaap	Goodwill Foreign Currency Translation Gain Loss GoodwillForeignCurrencyTranslationGainLoss	56711000	USD
CY2016	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	34796000	USD
CY2017	us-gaap	Operating Leases Rent Expense Net OperatingLeasesRentExpenseNet	84800000	USD
CY2015	hsic	Redeemable Noncontrolling Decrease From Distributions By Redeemable Noncontrolling Interest RedeemableNoncontrollingDecreaseFromDistributionsByRedeemableNoncontrollingInterest	32706000	USD
CY2015	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	252265000	USD
CY2016	us-gaap	Proceeds From Repayments Of Lines Of Credit ProceedsFromRepaymentsOfLinesOfCredit	98748000	USD
CY2017	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0	USD
CY2016Q4	us-gaap	Business Combination Indemnification Assets Amount As Of Acquisition Date BusinessCombinationIndemnificationAssetsAmountAsOfAcquisitionDate	51294000	USD
CY2016Q4	hsic	Accumulated Other Comprehensive Income Loss Net Of Tax Including Portion Attributable To Redeemable And Nonredeemable Noncontrolling Interests AccumulatedOtherComprehensiveIncomeLossNetOfTaxIncludingPortionAttributableToRedeemableAndNonredeemableNoncontrollingInterests	-330179000	USD
CY2016	hsic	Adjustments To Additional Paid In Capital Share Based Compensation Other Longterm Incentive Plans Settled In Cash AdjustmentsToAdditionalPaidInCapitalShareBasedCompensationOtherLongtermIncentivePlansSettledInCash	-4052000	USD
CY2016Q4	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	266463000	USD
CY2017Q4	us-gaap	Deferred Tax Assets Liabilities Net Noncurrent DeferredTaxAssetsLiabilitiesNetNoncurrent	10962000	USD
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.86
CY2016	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	83.9
CY2015Q4	hsic	Accumulated Other Comprehensive Income Loss Foreign Currency Translation Adjustment Attributable To Nonredeemable Noncontrolling Interests Net Of Tax AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentAttributableToNonredeemableNoncontrollingInterestsNetOfTax	-76000	USD
CY2014Q4	us-gaap	Restructuring Reserve RestructuringReserve	421000	USD
CY2017Q4	us-gaap	Deferred Tax Liabilities Noncurrent DeferredTaxLiabilitiesNoncurrent	50431000	USD
CY2016Q1	us-gaap	Operating Income Loss OperatingIncomeLoss	176194000	USD
CY2016Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Share Based Compensation Cost DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost	41677000	USD
CY2017	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2015	us-gaap	Fiscal Period Duration FiscalPeriodDuration	P365D
CY2017	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	2800000	USD
CY2017	hsic	Income Tax Reconciliation Interest Expense Related To Loans IncomeTaxReconciliationInterestExpenseRelatedToLoans	-18717000	USD
CY2016Q4	us-gaap	Line Of Credit Facility Interest Rate At Period End LineOfCreditFacilityInterestRateAtPeriodEnd	0.0161	pure
CY2017	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	6100000	USD
CY2015	us-gaap	Operating Leases Rent Expense Net OperatingLeasesRentExpenseNet	76000000	USD
CY2015	us-gaap	Minority Interest Decrease From Distributions To Noncontrolling Interest Holders MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders	657000	USD
CY2016Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.73
CY2015	us-gaap	Other Comprehensive Income Loss Derivatives Qualifying As Hedges Before Tax OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesBeforeTax	2147000	USD
CY2017	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	9062440000	USD
CY2017Q4	us-gaap	Long Term Debt And Capital Lease Obligations Maturities Repayments Of Principal In Year Five LongTermDebtAndCapitalLeaseObligationsMaturitiesRepaymentsOfPrincipalInYearFive	32906000	USD
CY2017Q4	us-gaap	Capital Leases Future Minimum Payments Due CapitalLeasesFutureMinimumPaymentsDue	5531000	USD
CY2015	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	-2270000	USD
CY2017Q4	us-gaap	Liabilities Liabilities	4154687000	USD
CY2015	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	14627000	USD
CY2014Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	2816445000	USD
CY2015	us-gaap	Equity Method Investment Dividends Or Distributions EquityMethodInvestmentDividendsOrDistributions	18029000	USD
CY2016	us-gaap	Stock Repurchased And Retired During Period Value StockRepurchasedAndRetiredDuringPeriodValue	550024000	USD
CY2017Q3	us-gaap	Sales Revenue Net SalesRevenueNet	3161083000	USD
CY2015	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	299852000	USD
CY2017	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	6150000	USD
CY2015	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	-5006000	USD
CY2016	us-gaap	Stockholders Equity Other StockholdersEquityOther	-15000	USD
CY2017Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards Foreign DeferredTaxAssetsOperatingLossCarryforwardsForeign	48711000	USD
CY2016Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	34903000	USD
CY2016	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	755835000	USD
CY2016	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	409676000	USD
CY2015	us-gaap	Temporary Equity Stock Issued During Period Value New Issues TemporaryEquityStockIssuedDuringPeriodValueNewIssues	18936000	USD
CY2017Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2017	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	5266000	USD
CY2016	us-gaap	Proceeds From Sale Of Available For Sale Securities ProceedsFromSaleOfAvailableForSaleSecurities	0	USD
CY2017	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	362506000	USD
CY2017Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	511914000	USD
CY2015	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Before Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentBeforeTax	134000	USD
CY2015	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	7622765000	USD
CY2017	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	283417000	USD
CY2017	dei	Document Period End Date DocumentPeriodEndDate	2017-12-30
CY2015	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	44369000	USD
CY2016Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	62381000	USD
CY2016	us-gaap	Restructuring Charges RestructuringCharges	45891000	USD
CY2017Q4	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	403020000	USD
CY2017	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	9370000	USD
CY2016	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-37066000	USD
CY2017	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-342276000	USD
CY2015	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-129637000	USD
CY2017Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.89
CY2016Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.01
CY2015Q4	us-gaap	Accumulated Other Comprehensive Income Loss Defined Benefit Pension And Other Postretirement Plans Net Of Tax AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax	20377000	USD
CY2016	us-gaap	Income Tax Reconciliation Tax Contingencies IncomeTaxReconciliationTaxContingencies	3066000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	-3933000	USD
CY2016	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	185438000	USD
CY2016	hsic	Changes In Fair Value Of Redeemable Securities ChangesInFairValueOfRedeemableSecurities	-66864000	USD
CY2017Q4	us-gaap	Unrecorded Unconditional Purchase Obligation Balance On First Anniversary UnrecordedUnconditionalPurchaseObligationBalanceOnFirstAnniversary	232479000	USD
CY2015	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	70.4
CY2015	hsic	Consolidated Tax Return Inclusion Threshold Percentage ConsolidatedTaxReturnInclusionThresholdPercentage	0.8	pure
CY2016	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	41357000	USD
CY2017Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Three FiniteLivedIntangibleAssetsAmortizationExpenseYearThree	102400000	USD
CY2016Q4	us-gaap	Redeemable Noncontrolling Interest Equity Fair Value RedeemableNoncontrollingInterestEquityFairValue	607636000	USD
CY2017Q4	us-gaap	Capital Leases Future Minimum Payments Due In Three Years CapitalLeasesFutureMinimumPaymentsDueInThreeYears	426000	USD
CY2015	us-gaap	Profit Loss ProfitLoss	523427000	USD
CY2016Q4	us-gaap	Accounts Payable Current AccountsPayableCurrent	1007249000	USD
CY2017Q4	us-gaap	Inventory Net InventoryNet	1933803000	USD
CY2016Q4	hsic	Deferred Tax Assets Noncurrent Inventory DeferredTaxAssetsNoncurrentInventory	10632000	USD
CY2017Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Next Twelve Months FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths	119500000	USD
CY2016Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.7
CY2015	us-gaap	Increase Decrease In Other Current Assets IncreaseDecreaseInOtherCurrentAssets	58376000	USD
CY2017	us-gaap	Investment Income Interest InvestmentIncomeInterest	17553000	USD
CY2017Q4	us-gaap	Business Combination Indemnification Assets Amount As Of Acquisition Date BusinessCombinationIndemnificationAssetsAmountAsOfAcquisitionDate	65558000	USD
CY2015	us-gaap	Allocated Share Based Compensation Expense Net Of Tax AllocatedShareBasedCompensationExpenseNetOfTax	31500000	USD
CY2016	us-gaap	Other Comprehensive Income Loss Foreign Currency Translation Adjustment Tax OtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentTax	0	USD
CY2015	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	162948000	USD
CY2015Q4	hsic	Accumulated Other Comprehensive Income Loss Net Of Tax Including Portion Attributable To Redeemable And Nonredeemable Noncontrolling Interests AccumulatedOtherComprehensiveIncomeLossNetOfTaxIncludingPortionAttributableToRedeemableAndNonredeemableNoncontrollingInterests	-230388000	USD
CY2017Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	213548000	USD
CY2015	us-gaap	Sales Revenue Net SalesRevenueNet	10629719000	USD
CY2015	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Adjustment Net Of Tax Portion Attributable To Noncontrolling Interest OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToNoncontrollingInterest	-4830000	USD
CY2015	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	-134035000	USD
CY2017Q4	us-gaap	Unrecorded Unconditional Purchase Obligation Balance On Fourth Anniversary UnrecordedUnconditionalPurchaseObligationBalanceOnFourthAnniversary	124069000	USD
CY2017	hsic	Comprehensive Income Net Of Tax Attributable To Redeemable Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToRedeemableNoncontrollingInterest	59664000	USD
CY2015	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	-3852000	USD
CY2017Q4	us-gaap	Accumulated Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax AccumulatedOtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	-3000	USD
CY2014Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	89474000	USD
CY2017Q4	us-gaap	Unrecorded Unconditional Purchase Obligation Balance On Second Anniversary UnrecordedUnconditionalPurchaseObligationBalanceOnSecondAnniversary	296751000	USD
CY2017Q4	us-gaap	Restructuring Charges RestructuringCharges	0	USD
CY2017Q4	us-gaap	Capital Leases Future Minimum Payments Due In Five Years CapitalLeasesFutureMinimumPaymentsDueInFiveYears	297000	USD
CY2017Q4	us-gaap	Preferred Stock Value Outstanding PreferredStockValueOutstanding	0	USD
CY2017	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	50084000	USD
CY2016	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	104787000	USD
CY2017	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	16587000	USD
CY2017Q4	us-gaap	Accounts Payable Current AccountsPayableCurrent	1153012000	USD
CY2017	us-gaap	Net Income Loss NetIncomeLoss	406299000	USD
CY2016Q1	us-gaap	Profit Loss ProfitLoss	124533000	USD
CY2017	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
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
CY2015	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	201203000	USD
CY2017	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	822848000	USD
CY2016	us-gaap	Net Income Loss Attributable To Redeemable Noncontrolling Interest NetIncomeLossAttributableToRedeemableNoncontrollingInterest	48760000	USD
CY2016	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	1481000	USD
CY2015Q4	us-gaap	Accumulated Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax AccumulatedOtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	-2000	USD
CY2017Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.06
CY2016	us-gaap	Operating Leases Rent Expense Net OperatingLeasesRentExpenseNet	79600000	USD
CY2017Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	7811235000	USD
CY2016	us-gaap	Payments To Minority Shareholders PaymentsToMinorityShareholders	72729000	USD
CY2017Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Five FiniteLivedIntangibleAssetsAmortizationExpenseYearFive	65200000	USD
CY2017Q4	us-gaap	Restructuring Reserve RestructuringReserve	4557000	USD
CY2016Q4	us-gaap	Investments And Other Noncurrent Assets InvestmentsAndOtherNoncurrentAssets	442790000	USD
CY2016	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-18090000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Before Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeTax	-4247000	USD
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CY2017	us-gaap	Net Income Loss Including Portion Attributable To Nonredeemable Noncontrolling Interest NetIncomeLossIncludingPortionAttributableToNonredeemableNoncontrollingInterest	407090000	USD
CY2016Q4	us-gaap	Bank Overdrafts BankOverdrafts	98500000	USD
CY2017Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.87
CY2016	us-gaap	Interest Paid Net InterestPaidNet	29391000	USD
CY2017	us-gaap	Sales Revenue Net SalesRevenueNet	12461543000	USD
CY2017Q4	us-gaap	Long Term Debt And Capital Lease Obligations Maturities Repayments Of Principal In Year Two LongTermDebtAndCapitalLeaseObligationsMaturitiesRepaymentsOfPrincipalInYearTwo	8617000	USD
CY2017Q4	us-gaap	Noncurrent Assets NoncurrentAssets	3345973000	USD
CY2016	us-gaap	Goodwill Foreign Currency Translation Gain Loss GoodwillForeignCurrencyTranslationGainLoss	-33658000	USD
CY2016	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-4809000	USD
CY2016Q2	us-gaap	Net Income Loss NetIncomeLoss	120097000	USD
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CY2015	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	129438000	USD
CY2016	us-gaap	Payments Of Dividends Minority Interest PaymentsOfDividendsMinorityInterest	32350000	USD
CY2016	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	-9705000	USD
CY2016Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	864744000	USD
CY2017Q4	us-gaap	Capital Leases Future Minimum Payments Due In Two Years CapitalLeasesFutureMinimumPaymentsDueInTwoYears	1000000	USD
CY2017Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.88
	us-gaap	Operating Income Loss OperatingIncomeLoss	213982000	USD
	us-gaap	Profit Loss ProfitLoss	153473000	USD
CY2015	us-gaap	Interest Expense InterestExpense	26008000	USD
CY2016Q4	us-gaap	Long Term Debt And Capital Lease Obligations Including Current Maturities LongTermDebtAndCapitalLeaseObligationsIncludingCurrentMaturities	781380000	USD
CY2015	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	92900000	USD
CY2015	hsic	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax Excluding Portion Attributable To Redeemable Noncontrolling Interest OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxExcludingPortionAttributableToRedeemableNoncontrollingInterest	-129245000	USD
CY2015	us-gaap	Payments Of Dividends Minority Interest PaymentsOfDividendsMinorityInterest	33301000	USD
CY2017	us-gaap	Income Tax Reconciliation Tax Contingencies IncomeTaxReconciliationTaxContingencies	3899000	USD
CY2017	us-gaap	Stockholders Equity Other StockholdersEquityOther	-399000	USD
CY2015	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	25104000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	195087000	USD
CY2017	us-gaap	Temporary Equity Accretion To Redemption Value TemporaryEquityAccretionToRedemptionValue	162729000	USD
CY2016	us-gaap	Income Taxes Paid IncomeTaxesPaid	205196000	USD
CY2015	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	354251000	USD
CY2015	us-gaap	Net Income Loss Including Portion Attributable To Nonredeemable Noncontrolling Interest NetIncomeLossIncludingPortionAttributableToNonredeemableNoncontrollingInterest	479839000	USD
CY2016	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	399000	USD
CY2016	hsic	Payments For Restructuring And Restructuring Reserve Accrual Adjustment PaymentsForRestructuringAndRestructuringReserveAccrualAdjustment	32253000	USD
CY2016Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	90329000	USD
CY2017Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	1000000	shares
CY2015	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	120001000	USD
CY2016Q4	hsic	Accumulated Other Comprehensive Income Loss Foreign Currency Translation Adjustment Attributable To Nonredeemable Noncontrolling Interests Net Of Tax AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentAttributableToNonredeemableNoncontrollingInterestsNetOfTax	-113000	USD
CY2017Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	669641000	USD
CY2017	hsic	Distribution Network Costs DistributionNetworkCosts	83200000	USD
CY2017Q4	us-gaap	Operating Leases Future Minimum Payments Due Thereafter OperatingLeasesFutureMinimumPaymentsDueThereafter	64674000	USD
CY2015	us-gaap	Other Depreciation And Amortization OtherDepreciationAndAmortization	6100000	USD
CY2016	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	28229000	USD
CY2016	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	642576000	USD
CY2017Q3	us-gaap	Restructuring Charges RestructuringCharges	0	USD
CY2017	us-gaap	Employee Service Share Based Compensation Tax Benefit From Exercise Of Stock Options EmployeeServiceShareBasedCompensationTaxBenefitFromExerciseOfStockOptions	0	USD
CY2017	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	81501000	USD
CY2017Q4	us-gaap	Capital Leases Future Minimum Payments Interest Included In Payments CapitalLeasesFutureMinimumPaymentsInterestIncludedInPayments	438000	USD
CY2015	us-gaap	Income Tax Reconciliation Foreign Income Tax Rate Differential IncomeTaxReconciliationForeignIncomeTaxRateDifferential	-25942000	USD
CY2016Q4	hsic	Accumulated Other Comprehensive Income Loss Foreign Currency Translation Adjustment Attributable To Redeemable Noncontrolling Interest Net Of Tax AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentAttributableToRedeemableNoncontrollingInterestNetOfTax	-13025000	USD
CY2016Q4	us-gaap	Taxes Payable Current TaxesPayableCurrent	151750000	USD
CY2016Q4	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	126742000	USD
CY2017Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	13777000	USD
CY2015	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesTax	0	USD
CY2015	hsic	Effective Income Tax Rate Excluding Favorable Response To Petition EffectiveIncomeTaxRateExcludingFavorableResponseToPetition	0.302	pure
CY2016	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	217958000	USD
CY2017	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	60050000	USD
CY2016	us-gaap	Other Comprehensive Income Loss Derivatives Qualifying As Hedges Tax OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesTax	-33000	USD
CY2016	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	-14167000	USD
CY2016	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	1472000	USD
CY2016Q3	us-gaap	Restructuring Charges RestructuringCharges	5370000	USD
CY2017Q4	us-gaap	Goodwill Goodwill	2301331000	USD
CY2017Q4	us-gaap	Gross Profit GrossProfit	900956000	USD
CY2016	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	8345195000	USD
CY2016	us-gaap	Depreciation Depreciation	63800000	USD
CY2016Q3	us-gaap	Sales Revenue Net SalesRevenueNet	2865148000	USD
CY2017Q4	us-gaap	Deferred Advertising Costs DeferredAdvertisingCosts	4000000	USD
CY2016	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	456604000	USD
CY2017	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	-14057000	USD
CY2017Q2	us-gaap	Profit Loss ProfitLoss	150253000	USD
CY2017	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-30
CY2017	us-gaap	Share Based Compensation ShareBasedCompensation	42294000	USD
CY2016	us-gaap	Income Tax Reconciliation Minority Interest Income Expense IncomeTaxReconciliationMinorityInterestIncomeExpense	13083000	USD
CY2016	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	2000	USD
CY2017Q4	us-gaap	Operating Leases Future Minimum Payments Due In Three Years OperatingLeasesFutureMinimumPaymentsDueInThreeYears	56226000	USD
CY2017Q4	us-gaap	Stockholders Equity StockholdersEquity	2811499000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Before Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentBeforeTax	-4000	USD
CY2016Q4	us-gaap	Liabilities Liabilities	3351956000	USD
CY2017Q4	us-gaap	Intangible Assets Gross Excluding Goodwill IntangibleAssetsGrossExcludingGoodwill	1181555000	USD
CY2017	us-gaap	Minority Interest Decrease From Distributions To Noncontrolling Interest Holders MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders	546000	USD
CY2017Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	210662000	USD
CY2017	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	856000	USD
CY2017	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	2
CY2017	dei	Amendment Flag AmendmentFlag	false
CY2017	us-gaap	Maximum Length Of Time Foreign Currency Cash Flow Hedge MaximumLengthOfTimeForeignCurrencyCashFlowHedge	P18M
CY2017Q4	us-gaap	Unrecorded Unconditional Purchase Obligation Due After Five Years UnrecordedUnconditionalPurchaseObligationDueAfterFiveYears	0	USD
CY2016	hsic	Initial Noncontrolling Interests And Adjustments Related To Business Acquisitions InitialNoncontrollingInterestsAndAdjustmentsRelatedToBusinessAcquisitions	4943000	USD
CY2016	us-gaap	Interest Expense InterestExpense	31893000	USD
CY2017	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	2539734000	USD
CY2015	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	241270000	USD
CY2015	us-gaap	Restructuring Charges RestructuringCharges	34931000	USD
CY2016	us-gaap	Effect Of Exchange Rate On Cash And Cash Equivalents EffectOfExchangeRateOnCashAndCashEquivalents	-8515000	USD
CY2017	hsic	Comprehensive Income Attributable To Noncontrolling Interests Excluding Comprehensive Income Attributable To Redeemable Noncontrolling Interests ComprehensiveIncomeAttributableToNoncontrollingInterestsExcludingComprehensiveIncomeAttributableToRedeemableNoncontrollingInterests	1443000	USD
CY2017	us-gaap	Proceeds From Sale Of Available For Sale Securities ProceedsFromSaleOfAvailableForSaleSecurities	0	USD
CY2016Q4	hsic	Distribution Rights And Exclusivity Agreements Net Of Amortization DistributionRightsAndExclusivityAgreementsNetOfAmortization	1937000	USD
CY2017Q4	hsic	Accumulated Other Comprehensive Income Loss Foreign Currency Translation Adjustment Attributable To Nonredeemable Noncontrolling Interests Net Of Tax AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentAttributableToNonredeemableNoncontrollingInterestsNetOfTax	539000	USD
CY2017	us-gaap	Other Depreciation And Amortization OtherDepreciationAndAmortization	9300000	USD
CY2017	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	88886000	USD
CY2015	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	165687000	shares
CY2017	us-gaap	Shipping Handling And Transportation Costs ShippingHandlingAndTransportationCosts	92600000	USD
CY2017Q4	us-gaap	Assets Assets	7811235000	USD
CY2017Q4	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	454752000	USD
CY2017Q4	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	79200000	USD
CY2016	us-gaap	Minority Interest Decrease From Distributions To Noncontrolling Interest Holders MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders	593000	USD
CY2017Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Two FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo	111300000	USD
CY2016	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	18518000	USD
CY2015	us-gaap	Proceeds From Repayments Of Lines Of Credit ProceedsFromRepaymentsOfLinesOfCredit	145173000	USD
CY2017	us-gaap	Payments Of Dividends Minority Interest PaymentsOfDividendsMinorityInterest	29134000	USD
CY2017Q4	us-gaap	Lines Of Credit Current LinesOfCreditCurrent	741653000	USD
CY2016	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	-98402000	USD
CY2015	us-gaap	Stock Repurchased And Retired During Period Value StockRepurchasedAndRetiredDuringPeriodValue	299852000	USD
CY2017Q4	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized	82600000	USD
CY2016	hsic	Income Tax Reconciliation Interest Expense Related To Loans IncomeTaxReconciliationInterestExpenseRelatedToLoans	-21737000	USD
CY2017	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.57
CY2017	hsic	Redeemable Noncontrolling Decrease From Distributions By Redeemable Noncontrolling Interest RedeemableNoncontrollingDecreaseFromDistributionsByRedeemableNoncontrollingInterest	28161000	USD
CY2017Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	2940029000	USD
CY2017	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	545515000	USD
CY2016	us-gaap	Profit Loss ProfitLoss	556395000	USD
CY2016	us-gaap	Sales Revenue Net SalesRevenueNet	11571668000	USD
CY2017Q3	us-gaap	Restructuring Charges RestructuringCharges	0	USD
CY2017Q4	us-gaap	Net Income Loss NetIncomeLoss	-8535000	USD
CY2017	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	13686000	USD
CY2015	us-gaap	Employee Service Share Based Compensation Tax Benefit From Exercise Of Stock Options EmployeeServiceShareBasedCompensationTaxBenefitFromExerciseOfStockOptions	20802000	USD
CY2016Q1	us-gaap	Net Income Loss NetIncomeLoss	113752000	USD
CY2015	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-348030000	USD
CY2017Q4	us-gaap	Operating Leases Future Minimum Payments Due OperatingLeasesFutureMinimumPaymentsDue	358619000	USD
CY2017Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	90900000	USD
CY2016Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2016	us-gaap	Payments To Acquire Businesses And Interest In Affiliates PaymentsToAcquireBusinessesAndInterestInAffiliates	228575000	USD
CY2016Q1	us-gaap	Gross Profit GrossProfit	777842000	USD
CY2017	us-gaap	Net Income Loss Attributable To Redeemable Noncontrolling Interest NetIncomeLossAttributableToRedeemableNoncontrollingInterest	52203000	USD
CY2016	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	163723000	shares
CY2015	hsic	Initial Noncontrolling Interests And Adjustments Related To Business Acquisitions InitialNoncontrollingInterestsAndAdjustmentsRelatedToBusinessAcquisitions	-368000	USD
CY2016	us-gaap	Shipping Handling And Transportation Costs ShippingHandlingAndTransportationCosts	84100000	USD
CY2016	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0	USD
CY2016	hsic	Comprehensive Income Net Of Tax Attributable To Redeemable Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToRedeemableNoncontrollingInterest	46108000	USD
CY2016Q4	us-gaap	Accumulated Other Comprehensive Income Loss Defined Benefit Pension And Other Postretirement Plans Net Of Tax AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax	20776000	USD
CY2016Q4	us-gaap	Inventory Net InventoryNet	1665750000	USD
CY2016	us-gaap	Operating Income Loss OperatingIncomeLoss	771574000	USD
CY2016	us-gaap	Temporary Equity Accretion To Redemption Value TemporaryEquityAccretionToRedemptionValue	66864000	USD
CY2015	us-gaap	Income Taxes Paid IncomeTaxesPaid	180897000	USD
CY2017Q4	us-gaap	Assets Current AssetsCurrent	4033260000	USD
CY2017	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	8500000	USD
CY2016	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	3.14
CY2017	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	175059000	USD
CY2016	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	255024000	USD
CY2015	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	14870000	USD
CY2017	us-gaap	Excess Tax Benefit From Share Based Compensation Financing Activities ExcessTaxBenefitFromShareBasedCompensationFinancingActivities	0	USD
CY2017	us-gaap	Operating Income Loss OperatingIncomeLoss	859369000	USD
CY2016	us-gaap	Increase Decrease In Other Current Assets IncreaseDecreaseInOtherCurrentAssets	22657000	USD
CY2017Q2	us-gaap	Net Income Loss NetIncomeLoss	140748000	USD
CY2016Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.74
CY2016Q1	us-gaap	Restructuring Charges RestructuringCharges	4058000	USD
CY2015	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	135000000	USD
CY2016	us-gaap	Marketing And Advertising Expense MarketingAndAdvertisingExpense	18400000	USD
CY2016	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.288	pure
CY2017Q3	us-gaap	Gross Profit GrossProfit	836054000	USD
CY2017	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	800000	USD
CY2017	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	1008000	USD
CY2016	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	-9502000	USD
CY2017	us-gaap	Interest Expense InterestExpense	53654000	USD
CY2016Q4	us-gaap	Capitalized Computer Software Net CapitalizedComputerSoftwareNet	32321000	USD
CY2016Q4	us-gaap	Deferred Tax Assets Liabilities Net Noncurrent DeferredTaxAssetsLiabilitiesNetNoncurrent	16685000	USD
CY2015	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	16506000	USD
CY2015	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	150000	USD
CY2015	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	29580000	USD
CY2015Q4	hsic	Accumulated Other Comprehensive Income Loss Foreign Currency Translation Adjustment Attributable To Redeemable Noncontrolling Interest Net Of Tax AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentAttributableToRedeemableNoncontrollingInterestNetOfTax	-10373000	USD
CY2017Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	2824410000	USD
CY2015	us-gaap	Share Based Compensation ShareBasedCompensation	44614000	USD
CY2015	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	-17388000	USD
CY2015	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	35672000	USD
CY2015	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	194869000	USD
CY2016	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	130043000	USD
CY2016	us-gaap	Net Income Loss Including Portion Attributable To Nonredeemable Noncontrolling Interest NetIncomeLossIncludingPortionAttributableToNonredeemableNoncontrollingInterest	507635000	USD
CY2016	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Before Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentBeforeTax	2000	USD
CY2017Q4	us-gaap	Long Term Debt And Capital Lease Obligations Repayments Of Principal In Next Twelve Months LongTermDebtAndCapitalLeaseObligationsRepaymentsOfPrincipalInNextTwelveMonths	16659000	USD
CY2016	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	58200000	USD
CY2016Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.69
CY2016	us-gaap	Noncash Or Part Noncash Acquisition Debt Assumed1 NoncashOrPartNoncashAcquisitionDebtAssumed1	63800000	USD
CY2016Q4	us-gaap	Other Assets Miscellaneous Noncurrent OtherAssetsMiscellaneousNoncurrent	13812000	USD
CY2016Q4	us-gaap	Deferred Advertising Costs DeferredAdvertisingCosts	3500000	USD
CY2016Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	1000000	shares
CY2017Q4	us-gaap	Operating Leases Future Minimum Payments Due In Four Years OperatingLeasesFutureMinimumPaymentsDueInFourYears	41751000	USD
CY2017	us-gaap	Profit Loss ProfitLoss	459293000	USD
CY2017	dei	Document Type DocumentType	10-K
CY2017Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	375001000	USD
CY2015	us-gaap	Other Comprehensive Income Loss Foreign Currency Translation Adjustment Tax OtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentTax	0	USD
CY2016	us-gaap	Other Comprehensive Income Loss Derivatives Qualifying As Hedges Net Of Tax OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTax	-992000	USD
CY2016Q3	us-gaap	Net Income Loss NetIncomeLoss	133713000	USD
CY2017Q4	us-gaap	Investments In Affiliates Subsidiaries Associates And Joint Ventures InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures	268364000	USD
CY2017Q4	us-gaap	Taxes Payable Current TaxesPayableCurrent	188873000	USD
CY2016	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	70179000	USD
CY2017	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Adjustment Net Of Tax Portion Attributable To Noncontrolling Interest OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToNoncontrollingInterest	8113000	USD
CY2015	us-gaap	Marketing And Advertising Expense MarketingAndAdvertisingExpense	19200000	USD
CY2017	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
CY2017	us-gaap	Use Of Estimates UseOfEstimates	<div><p style='text-align:justify;margin-top:0pt;margin-bottom:0pt;line-height:12pt;' ><font style='font-family:Times New Roman;font-size:11pt;font-style:italic;margin-left:0pt;' >Use of Estimates</font></p><p style='text-align:justify;line-height:12pt;' ></p><p style='text-align:left;margin-top:0pt;margin-bottom:0pt;line-height:12pt;' ><font style='font-family:Times New Roman;font-size:11pt;margin-left:18pt;' >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.</font></p></div>
CY2017Q4	us-gaap	Long Term Debt And Capital Lease Obligations Maturities Repayments Of Principal After Year Five LongTermDebtAndCapitalLeaseObligationsMaturitiesRepaymentsOfPrincipalAfterYearFive	301282000	USD
CY2016Q4	us-gaap	Accumulated Other Comprehensive Income Loss Cumulative Changes In Net Gain Loss From Cash Flow Hedges Effect Net Of Tax AccumulatedOtherComprehensiveIncomeLossCumulativeChangesInNetGainLossFromCashFlowHedgesEffectNetOfTax	-53000	USD
CY2017Q4	us-gaap	Common Stock Value Outstanding CommonStockValueOutstanding	1537000	USD
CY2016	hsic	Consolidated Tax Return Inclusion Threshold Percentage ConsolidatedTaxReturnInclusionThresholdPercentage	0.8	pure
CY2017Q2	us-gaap	Sales Revenue Net SalesRevenueNet	2922948000	USD
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CY2016	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	49617000	USD
CY2017	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	193072000	USD
CY2017Q4	hsic	Deferred Tax Assets Liabilities Noncurrent Other DeferredTaxAssetsLiabilitiesNoncurrentOther	36269000	USD
CY2015	us-gaap	Investment Income Interest InvestmentIncomeInterest	12935000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	-3000	USD
CY2015	us-gaap	Net Income Loss Attributable To Redeemable Noncontrolling Interest NetIncomeLossAttributableToRedeemableNoncontrollingInterest	43588000	USD
CY2016Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	264264000	USD
CY2017	hsic	Initial Noncontrolling Interests And Adjustments Related To Business Acquisitions InitialNoncontrollingInterestsAndAdjustmentsRelatedToBusinessAcquisitions	8050000	USD
CY2017	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	42300000	USD
CY2015	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	2563000	shares
CY2017Q4	us-gaap	Long Term Debt And Capital Lease Obligations LongTermDebtAndCapitalLeaseObligations	907756000	USD
CY2017Q4	us-gaap	Capital Leases Future Minimum Payments Due Thereafter CapitalLeasesFutureMinimumPaymentsDueThereafter	1799000	USD
CY2015Q4	us-gaap	Noncurrent Assets NoncurrentAssets	2819040000	USD
CY2016Q4	us-gaap	Minority Interest MinorityInterest	7738000	USD
CY2017Q4	us-gaap	Long Term Debt And Capital Lease Obligations Maturities Repayments Of Principal In Year Four LongTermDebtAndCapitalLeaseObligationsMaturitiesRepaymentsOfPrincipalInYearFour	107432000	USD
CY2016Q2	us-gaap	Restructuring Charges RestructuringCharges	20383000	USD
CY2016Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	15882000	USD
CY2015	hsic	Comprehensive Income Attributable To Noncontrolling Interests Excluding Comprehensive Income Attributable To Redeemable Noncontrolling Interests ComprehensiveIncomeAttributableToNoncontrollingInterestsExcludingComprehensiveIncomeAttributableToRedeemableNoncontrollingInterests	741000	USD
CY2016	us-gaap	Temporary Equity Foreign Currency Translation Adjustments TemporaryEquityForeignCurrencyTranslationAdjustments	-2652000	USD
CY2016Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	90400000	USD
CY2016Q2	us-gaap	Sales Revenue Net SalesRevenueNet	2872630000	USD
CY2017	us-gaap	Temporary Equity Stock Issued During Period Value New Issues TemporaryEquityStockIssuedDuringPeriodValueNewIssues	78939000	USD
CY2016Q4	us-gaap	Accumulated Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax AccumulatedOtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	0	USD
CY2017Q4	us-gaap	Capital Leases Future Minimum Payments Present Value Of Net Minimum Payments CapitalLeasesFutureMinimumPaymentsPresentValueOfNetMinimumPayments	5093000	USD
CY2015	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	71684000	USD
CY2017	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-420000	USD
	us-gaap	Restructuring Charges RestructuringCharges	16080000	USD
CY2017Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Share Based Compensation Cost DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost	22525000	USD
CY2017	hsic	Fair Value Adjustment For Cash Settlement Stock Based Compensation Awards FairValueAdjustmentForCashSettlementStockBasedCompensationAwards	0	USD
CY2017	us-gaap	Other Comprehensive Income Loss Derivatives Qualifying As Hedges Tax OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesTax	-786000	USD
CY2015	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	992000	USD
CY2017	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	61107000	USD
CY2017	us-gaap	Stock Repurchased And Retired During Period Value StockRepurchasedAndRetiredDuringPeriodValue	450000000	USD
CY2016	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	58246000	USD
CY2016	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	17668000	USD
CY2017Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	990498000	USD
CY2015	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	2238051000	USD
CY2017Q3	us-gaap	Profit Loss ProfitLoss	150948000	USD
CY2017Q4	us-gaap	Liabilities Current LiabilitiesCurrent	2776215000	USD
CY2015	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	591320000	USD
CY2016Q4	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0.01
CY2016	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	11404000	USD
CY2015	us-gaap	Excess Tax Benefit From Share Based Compensation Financing Activities ExcessTaxBenefitFromShareBasedCompensationFinancingActivities	2199000	USD
CY2017Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	1470047000	USD
CY2015	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	44600000	USD
CY2015	us-gaap	Net Income Loss NetIncomeLoss	479058000	USD
CY2015Q4	us-gaap	Assets Assets	6534740000	USD
CY2016	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	625792000	USD
CY2017	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	593273000	USD
CY2016Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	621180000	USD
CY2017Q3	dei	Entity Public Float EntityPublicFloat	14360474000	USD
CY2015	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	39539000	USD
CY2015	us-gaap	Effect Of Exchange Rate On Cash And Cash Equivalents EffectOfExchangeRateOnCashAndCashEquivalents	-24827000	USD
CY2017	us-gaap	Depreciation Depreciation	67300000	USD
CY2015	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.89
CY2016Q4	us-gaap	Long Term Debt And Capital Lease Obligations LongTermDebtAndCapitalLeaseObligations	715457000	USD
CY2017Q4	us-gaap	Operating Leases Future Minimum Payments Due In Five Years OperatingLeasesFutureMinimumPaymentsDueInFiveYears	26695000	USD
CY2016Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-317041000	USD
CY2016	us-gaap	Net Income Loss NetIncomeLoss	506778000	USD
CY2017	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	362021000	USD
CY2016	us-gaap	Adjustments Related To Tax Withholding For Share Based Compensation AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation	29114000	USD
CY2016Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	406353000	USD
CY2017Q4	us-gaap	Other Assets Miscellaneous Noncurrent OtherAssetsMiscellaneousNoncurrent	15366000	USD
CY2015	us-gaap	Noncash Or Part Noncash Acquisition Debt Assumed1 NoncashOrPartNoncashAcquisitionDebtAssumed1	5000000	USD
CY2017	us-gaap	Minority Interest Decrease From Redemptions MinorityInterestDecreaseFromRedemptions	48669000	USD
CY2016	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	2409008000	USD
CY2016Q4	us-gaap	Stockholders Equity StockholdersEquity	2793066000	USD
CY2017Q2	us-gaap	Operating Income Loss OperatingIncomeLoss	193968000	USD
CY2015	hsic	Adjustments To Additional Paid In Capital Share Based Compensation Other Longterm Incentive Plans Settled In Cash AdjustmentsToAdditionalPaidInCapitalShareBasedCompensationOtherLongtermIncentivePlansSettledInCash	729000	USD
CY2017	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	287996000	USD
CY2017	hsic	Deferred Taxes Purchases Of Noncontrolling Interest In Certain Subsidiaries DeferredTaxesPurchasesOfNoncontrollingInterestInCertainSubsidiaries	35681000	USD
CY2017Q4	hsic	Deferred Tax Assets Noncurrent Tax Deferred Expense Reserves And Accruals Reserves DeferredTaxAssetsNoncurrentTaxDeferredExpenseReservesAndAccrualsReserves	23715000	USD
CY2017	hsic	Unrecognized Tax Benefits Including Accrued Interest UnrecognizedTaxBenefitsIncludingAccruedInterest	105200000	USD
CY2017	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	116500000	USD
CY2017	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	-13647000	USD
CY2017Q4	us-gaap	Unrecognized Tax Benefits Income Tax Penalties Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAccrued	0	USD
CY2016Q4	us-gaap	Noncurrent Assets NoncurrentAssets	2974826000	USD
CY2017	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	12457000	USD
CY2017	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	1421000	shares
CY2015	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	393790000	USD
CY2016Q3	us-gaap	Gross Profit GrossProfit	787675000	USD
CY2017	us-gaap	Income Tax Reconciliation Foreign Income Tax Rate Differential IncomeTaxReconciliationForeignIncomeTaxRateDifferential	-24433000	USD
CY2017	us-gaap	Gross Profit GrossProfit	3399103000	USD
CY2015	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Before Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentBeforeTax	-134035000	USD
CY2017	us-gaap	Temporary Equity Foreign Currency Translation Adjustments TemporaryEquityForeignCurrencyTranslationAdjustments	7461000	USD
CY2017	us-gaap	Equity Method Investment Realized Gain Loss On Disposal EquityMethodInvestmentRealizedGainLossOnDisposal	-17636000	USD
CY2016	us-gaap	Equity Method Investment Realized Gain Loss On Disposal EquityMethodInvestmentRealizedGainLossOnDisposal	0	USD
CY2015	us-gaap	Equity Method Investment Realized Gain Loss On Disposal EquityMethodInvestmentRealizedGainLossOnDisposal	0	USD
CY2016	hsic	Deferred Taxes Purchases Of Noncontrolling Interest In Certain Subsidiaries DeferredTaxesPurchasesOfNoncontrollingInterestInCertainSubsidiaries	48037000	USD
CY2017	hsic	Changes In Fair Value Of Redeemable Securities ChangesInFairValueOfRedeemableSecurities	-162729000	USD
CY2017	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	5266000	USD
CY2017	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	42294000	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	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-10921000	USD
CY2016	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-12595000	USD
CY2015	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-12902000	USD
CY2017	hsic	Tax Cuts And Jobs Act Of2017 Accounting Transition Tax For Accumulated Foreign Earnings Provisional Income Tax Expense TaxCutsAndJobsActOf2017AccountingTransitionTaxForAccumulatedForeignEarningsProvisionalIncomeTaxExpense	140000000	USD
CY2016	hsic	Tax Cuts And Jobs Act Of2017 Accounting Transition Tax For Accumulated Foreign Earnings Provisional Income Tax Expense TaxCutsAndJobsActOf2017AccountingTransitionTaxForAccumulatedForeignEarningsProvisionalIncomeTaxExpense	0	USD
CY2015	hsic	Tax Cuts And Jobs Act Of2017 Accounting Transition Tax For Accumulated Foreign Earnings Provisional Income Tax Expense TaxCutsAndJobsActOf2017AccountingTransitionTaxForAccumulatedForeignEarningsProvisionalIncomeTaxExpense	0	USD
CY2017	us-gaap	Proceeds From Sale Of Equity Method Investments ProceedsFromSaleOfEquityMethodInvestments	34048000	USD
CY2016	us-gaap	Proceeds From Sale Of Equity Method Investments ProceedsFromSaleOfEquityMethodInvestments	0	USD
CY2015	us-gaap	Proceeds From Sale Of Equity Method Investments ProceedsFromSaleOfEquityMethodInvestments	0	USD
CY2017	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	44832000	USD
CY2016	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	27115000	USD
CY2015	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	28659000	USD
CY2017	hsic	Reclassification Of Additional Paid In Capital To Retained Earnings ReclassificationOfAdditionalPaidInCapitalToRetainedEarnings	0	USD
CY2015Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	77600000	USD
CY2016	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	7300000	USD
CY2016	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	20400000	USD
CY2014Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	65800000	USD
CY2015	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	10400000	USD
CY2015	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	19600000	USD
CY2016	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	900000	USD
CY2016	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	9700000	USD
CY2016	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	4300000	USD
CY2016Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	90400000	USD
CY2015	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	10500000	USD
CY2015	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	7600000	USD
CY2015	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	100000	USD
CY2015Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	77600000	USD
CY2017	hsic	Income Tax Reconciliation Excess Tax Benefits Share Based Compensation Amount IncomeTaxReconciliationExcessTaxBenefitsShareBasedCompensationAmount	-17387000	USD
CY2016	hsic	Income Tax Reconciliation Excess Tax Benefits Share Based Compensation Amount IncomeTaxReconciliationExcessTaxBenefitsShareBasedCompensationAmount	0	USD
CY2015	hsic	Income Tax Reconciliation Excess Tax Benefits Share Based Compensation Amount IncomeTaxReconciliationExcessTaxBenefitsShareBasedCompensationAmount	0	USD
CY2017	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.441	pure
CY2017	hsic	Effective Income Tax Rate Excluding Unfavorable Response To Petition EffectiveIncomeTaxRateExcludingUnfavorableResponseToPetition	0.267	pure
CY2017Q4	us-gaap	Undistributed Earnings Of Foreign Subsidiaries UndistributedEarningsOfForeignSubsidiaries	1400000000	USD
CY2017	us-gaap	Loss Contingency Managements Assessment And Process LossContingencyManagementsAssessmentAndProcess	As of December 30, 2017, 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.
CY2016Q4	hsic	Deferred Tax Assets Liabilities Noncurrent Other DeferredTaxAssetsLiabilitiesNoncurrentOther	23836000	USD
CY2017	hsic	Adjustment For Changes In Unrecognized Tax Benefits AdjustmentForChangesInUnrecognizedTaxBenefits	-2318000	USD
CY2016	hsic	Adjustment For Changes In Unrecognized Tax Benefits AdjustmentForChangesInUnrecognizedTaxBenefits	6013000	USD
CY2017	us-gaap	Other Information Pertaining To Income Taxes OtherInformationPertainingToIncomeTaxes	The tax years subject to examination by major tax jurisdictions include the years 2012 and forward by the U.S. Internal Revenue Service (“IRS”), as well as the years 2008 and forward for certain states and certain foreign jurisdictions. In December 2014, the IRS issued a Statutory Notice of Deficiency for 2009, 2010 and 2011. During the quarter ended March 28, 2015, we filed our petition to the U.S. Tax Court disputing the adjustments proposed by the IRS. During the quarter ended June 27, 2015, we were notified by the IRS that our protest was transferred to the Appellate Divisions (Appeals Section) of the IRS. During the quarter ended March 26, 2016, we filed our protest with the Appellate Division. The opening appeals conference was held on June 8, 2016 and a proposed settlement was reached. On July 13, 2016, a joint status report was filed with the Tax Court indicating a basis for settlement had been reached on all of the issues in this case. On October 7, 2016 an executed decision document was signed by the Internal Revenue Service’s Special Trial Attorney and submitted to the Tax Court finalizing the Appeals decision. Additionally, during the quarter ended December 31, 2016 we filed a Mutual Agreement Procedure request with the IRS for assistance from the U.S. Competent Authority for an open Transfer Pricing issue which resulted in a partial settlement during the quarter ended December 30, 2017. We do not expect this to have a material effect on our consolidated financial position, liquidity or the results of operations.
CY2017	hsic	Tax Cuts And Jobs Act Of2017 Accounting Transition Tax For Accumulated Foreign Earnings Provisional Income Tax Expense TaxCutsAndJobsActOf2017AccountingTransitionTaxForAccumulatedForeignEarningsProvisionalIncomeTaxExpense	140000000	USD
CY2016	hsic	Tax Cuts And Jobs Act Of2017 Accounting Transition Tax For Accumulated Foreign Earnings Provisional Income Tax Expense TaxCutsAndJobsActOf2017AccountingTransitionTaxForAccumulatedForeignEarningsProvisionalIncomeTaxExpense	0	USD
CY2015	hsic	Tax Cuts And Jobs Act Of2017 Accounting Transition Tax For Accumulated Foreign Earnings Provisional Income Tax Expense TaxCutsAndJobsActOf2017AccountingTransitionTaxForAccumulatedForeignEarningsProvisionalIncomeTaxExpense	0	USD
CY2017	hsic	Income Tax Reconciliation Deferred Tax Assets And Liabilities Revaluation Amount IncomeTaxReconciliationDeferredTaxAssetsAndLiabilitiesRevaluationAmount	2953000	USD
CY2016	hsic	Income Tax Reconciliation Deferred Tax Assets And Liabilities Revaluation Amount IncomeTaxReconciliationDeferredTaxAssetsAndLiabilitiesRevaluationAmount	0	USD
CY2015	hsic	Income Tax Reconciliation Deferred Tax Assets And Liabilities Revaluation Amount IncomeTaxReconciliationDeferredTaxAssetsAndLiabilitiesRevaluationAmount	0	USD
CY2015	us-gaap	Stockholders Equity Other StockholdersEquityOther	-213000	USD
CY2017	hsic	Noncontrolling Interest Decrease From Purchase Of Interests NoncontrollingInterestDecreaseFromPurchaseOfInterests	4150000	USD
CY2015	hsic	Adjustment For Changes In Unrecognized Tax Benefits AdjustmentForChangesInUnrecognizedTaxBenefits	6494000	USD
CY2016	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	3.1
CY2017	us-gaap	Noncash Or Part Noncash Acquisition Net Nonmonetary Assets Acquired Liabilities Assumed1 NoncashOrPartNoncashAcquisitionNetNonmonetaryAssetsAcquiredLiabilitiesAssumed1	17600000	USD

Files In Submission

Name	View Source	Status
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$HSIC
HENRY SCHEIN INC Stock $hsic

2017 Q4 Form 10-K Financial Statement

#000100022818000012 Filed on February 21, 2018

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$HSIC HENRY SCHEIN INC Stock $hsic

2017 Q4 Form 10-K Financial Statement

#000100022818000012 Filed on February 21, 2018

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$HSIC
HENRY SCHEIN INC Stock $hsic