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Segment Data (Details)
$ in Thousands

3 Months Ended

9 Months Ended

Sep. 24, 2016

USD ($)

number

Sep. 26, 2015

USD ($)

Sep. 24, 2016

USD ($)

number

Sep. 26, 2015

USD ($)

Segment Reporting [Abstract]

Number of reportable segments | number

2

Number of countries served globally | number

33

33

Segment Reporting Information [Line Items]

Net sales

$ 2,865,148

$ 2,685,835

$ 8,450,734

$ 7,778,801

Operating income

200,721

188,882

557,592

533,279

Health Care Distribution [Member]

Segment Reporting Information [Line Items]

Net sales

2,760,452

2,596,097

8,137,348

7,513,847

Operating income

170,158

161,702

468,610

454,009

Health Care Distribution [Member] | Dental [Member]

Segment Reporting Information [Line Items]

Net sales

^[1]

1,330,525

1,266,321

4,005,468

3,837,137

Health Care Distribution [Member] | Animal Health [Member]

Segment Reporting Information [Line Items]

Net sales

^[1]

790,279

732,533

2,415,290

2,165,415

Health Care Distribution [Member] | Medical [Member]

Segment Reporting Information [Line Items]

Net sales

^[1]

639,648

597,243

1,716,590

1,511,295

Technology and Value-Added Services [Member]

Segment Reporting Information [Line Items]

Net sales

^[2]

104,696

89,738

313,386

264,954

Operating income

$ 30,563

$ 27,180

$ 88,982

$ 79,270

[1]	Consists of consumable products, small equipment, laboratory products, large equipment, equipment repair services, branded and generic pharmaceuticals, vaccines, surgical products, diagnostic tests, infection-control products and vitamins.
[2]	Consists of practice management software and other value-added products, which are distributed primarily to health care providers, and financial services on a non-recourse basis, e-services, continuing education services for practitioners, consulting and other services.

X

- Definition

The number of countries in which the entity operates as of balance sheet date.

+ References

No definition available.

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X

- Definition

Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements.

+ References

No definition available.

+ Details

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X

- Definition

The net result for the period of deducting operating expenses from operating revenues.

+ References

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X

- Definition

Total revenue from sale of goods and services rendered during the reporting period, in the normal course of business, reduced by sales returns and allowances, and sales discounts.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.1)
-URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688

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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

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X

- Details

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X

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X

- Details

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X

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