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Investments and Other - Notes Receivable Items (Details) - Financing Receivable [Member] | 12 Months Ended
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Dec. 30, 2017
Accounts, Notes, Loans and Financing Receivable [Line Items] |
Latest maturity date of varying installments of long-term notes receivable | Dec. 31, 2030
Minimum [Member] |
Accounts, Notes, Loans and Financing Receivable [Line Items] |
Long-term notes receivable interest rate (as a percent) | 1.00%
Maximum [Member] |
Accounts, Notes, Loans and Financing Receivable [Line Items] |
Long-term notes receivable interest rate (as a percent) | 12.00%

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- Definition The latest maturity date for long-term notes receivable due in varying installments. + References No definition available. + Details
Name: | hsic_NoteReceivableMaturityDateRangeEnd
Namespace Prefix: | hsic_
Data Type: | xbrli:dateItemType
Balance Type: | na
Period Type: | duration

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- Definition Effective interest rate as of the balance sheet date on aggregate noncurrent notes receivable. + References No definition available. + Details
Name: | hsic_NotesReceivableNoncurrentEffectiveInterestRate
Namespace Prefix: | hsic_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_AccountsNotesAndLoansReceivableLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Details
Name: | us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis=us-gaap_FinanceReceivablesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | us-gaap_RangeAxis=us-gaap_MinimumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | us-gaap_RangeAxis=us-gaap_MaximumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |