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Share-Based Compensation - Additional Information (Details) | Nov. 30, 2020 shares
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Employee Matters Agreement |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |
Awards outstanding | 1,452,000

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- Definition Share based compensation arrangement by share based payment award options and other than options outstanding number. + References No definition available. + Details
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Namespace Prefix: | snx_
Data Type: | xbrli:sharesItemType
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
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Details
Name: | us-gaap_TypeOfArrangementAxis=snx_EmployeeMattersAgreementMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |