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Employee Benefit Plans - Other Employee Benefits (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 30, 2017	Dec. 31, 2016	Dec. 26, 2015
Management [Member] | Deferred compensation bonus and commission plan [Member]
Deferred Compensation Arrangement with Individual, Excluding Share-based Payments and Postretirement Benefits [Line Items]
Deferred compensation plan fair market value amount charged (credited) to operations	$ 5.0	$ 1.7	$ 0.1
Qualified 401K plan [Member]
Defined Contribution Plan Disclosure [Line Items]
Amounts charged (credited) to operations	$ 39.0	33.9	31.5
Qualified 401K plan [Member] | Maximum [Member]
Defined Contribution Plan Disclosure [Line Items]
Maximum matching contributions as a percentage of participants' contributions (as a percent)	100.00%
Maximum participants' contributions as a percentage of their base compensation (as a percent)	7.00%
Allowable maximum percentage of contributions allocated to Henry Schein Stock Fund (as a percent)	20.00%
Supplemental executive retirement plan [Member]
Defined Contribution Plan Disclosure [Line Items]
Amounts charged (credited) to operations	$ 0.6	$ 0.3	$ 1.5

X

- Definition

Maximum percentage of 401(k) plan contributions that can be allocated to the Henry Schein Stock Fund.

+ References

No definition available.

+ Details

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X

- Definition

The compensation expense recognized during the period pertaining to the deferred compensation arrangement.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5047-113901

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 710
-SubTopic 10
-Section 30
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6409875&loc=d3e20015-108363

+ Details

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X

- 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

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X

- Definition

Amount of cost for defined contribution plan.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 70
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=49170846&loc=d3e28014-114942

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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.

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X

- Definition

Percentage of employees' gross pay for which the employer contributes a matching contribution to a defined contribution plan.

+ References

No definition available.

+ Details

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X

- Definition

Percentage employer matches of the employee's percentage contribution matched.

+ References

No definition available.

+ Details

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- Details

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