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Organization and Basis of Presentation - Additional Information (Details)	9 Months Ended
	Aug. 31, 2019 segment market
Segment Reporting Information [Line Items]
Number of reportable segments | segment	2
ConcentrixMember
Segment Reporting Information [Line Items]
Number of identified vertical markets | market	10

X

- Definition

Number Of Identified Vertical Markets

+ References

No definition available.

+ Details

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Namespace Prefix:	snx_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

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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Namespace Prefix:	us-gaap_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

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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Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Details

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Namespace Prefix:
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Balance Type:
Period Type: