Debt - Term Loan Narrative (Details) - USD ($)	5 Months Ended	6 Months Ended	12 Months Ended
Jun. 05, 2025	Jun. 27, 2026	Dec. 27, 2025
Term Credit Agreement [Member]
Line of Credit Facility [Line Items]
Debt face amount		$ 750,000,000
Debt term (in years)		3 years
Long-term debt		$ 745,000,000	$ 749,000,000
Debt instrument, interest rate, stated percentage		3.62%	3.76%
Debt instrument, basis spread on variable rate		1.25%	1.25%
Debt instrument, interest rate at period end		4.87%	5.01%
Debt Instrument Variable Interest Rate Type Extensible Enumeration		Secured Overnight Financing Rate Sofr [Member]
Percentage of the notional amount hedged		88.00%
Derivative fixed interest rate		5.69%	5.69%
Derivative floating interest rate		4.87%	5.01%
Derivative weighted average interest rate		5.59%	5.62%
Debt instrument, maturity date	Jul. 11, 2026	Jun. 06, 2030
June 2026 through June 2027 [Member]
Line of Credit Facility [Line Items]
Quarterly payments		$ 5,000,000
September 2027 through June 2030 [Member]
Line of Credit Facility [Line Items]
Quarterly payments		$ 9,000,000

Weighted average interest rate related to the group of interest rate derivatives.

No definition available.

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Namespace Prefix:	hsic_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
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Balance Type:	na
Period Type:	duration

- Definition

Face (par) amount of debt instrument at time of issuance.

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Balance Type:	credit
Period Type:	instant

- Definition

Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.

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Balance Type:	na
Period Type:	instant

- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

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- Definition

Date when the debt instrument is scheduled to be fully repaid, in YYYY-MM-DD format.

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- Definition

Amount of the required periodic payments including both interest and principal payments.

+ References

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Balance Type:	debit
Period Type:	duration

- Definition

Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

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Period Type:	duration

- Definition

Indicates type of variable interest rate on debt instrument.

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Data Type:	enum2:enumerationSetItemType
Balance Type:	na
Period Type:	duration

- Definition

Fixed interest rate related to the interest rate derivative.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Variable interest rate in effect as of the balance sheet date related to the interest rate derivative.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
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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.

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- Definition

Amount, after deduction of unamortized premium (discount) and debt issuance cost, of long-term debt. Excludes lease obligation.

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Period Type:	instant

- Definition

Percentage of an entity's outstanding debt that is designated as a hedged item in cash flow, fair value, or net investment hedge.

+ References

No definition available.

+ Details

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