<?xml version='1.0' encoding='utf-8'?>
<FilingSummary>
  <Version>3.21.1</Version>
  <ProcessingTime/>
  <ReportFormat>html</ReportFormat>
  <ContextCount>230</ContextCount>
  <ElementCount>438</ElementCount>
  <EntityCount>1</EntityCount>
  <FootnotesReported>true</FootnotesReported>
  <SegmentCount>101</SegmentCount>
  <ScenarioCount>0</ScenarioCount>
  <TuplesReported>false</TuplesReported>
  <UnitCount>7</UnitCount>
  <MyReports>
    <Report instance="snx-10q_20210228.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R1.htm</HtmlFileName>
      <LongName>100000 - Document - Document and Entity Information</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.synnex.com/20210228/taxonomy/role/DocumentDocumentAndEntityInformation</Role>
      <ShortName>Document and Entity Information</ShortName>
      <MenuCategory>Cover</MenuCategory>
      <Position>1</Position>
    </Report>
    <Report instance="snx-10q_20210228.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R2.htm</HtmlFileName>
      <LongName>100010 - Statement - CONSOLIDATED BALANCE SHEETS</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.synnex.com/20210228/taxonomy/role/StatementCONSOLIDATEDBALANCESHEETS</Role>
      <ShortName>CONSOLIDATED BALANCE SHEETS</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>2</Position>
    </Report>
    <Report instance="snx-10q_20210228.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R3.htm</HtmlFileName>
      <LongName>100020 - Statement - CONSOLIDATED BALANCE SHEETS (Parenthetical)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.synnex.com/20210228/taxonomy/role/StatementCONSOLIDATEDBALANCESHEETSParenthetical</Role>
      <ShortName>CONSOLIDATED BALANCE SHEETS (Parenthetical)</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>3</Position>
    </Report>
    <Report instance="snx-10q_20210228.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R4.htm</HtmlFileName>
      <LongName>100030 - Statement - CONSOLIDATED STATEMENTS OF OPERATIONS</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.synnex.com/20210228/taxonomy/role/StatementCONSOLIDATEDSTATEMENTSOFOPERATIONS</Role>
      <ShortName>CONSOLIDATED STATEMENTS OF OPERATIONS</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>4</Position>
    </Report>
    <Report instance="snx-10q_20210228.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R5.htm</HtmlFileName>
      <LongName>100040 - Statement - CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.synnex.com/20210228/taxonomy/role/StatementCONSOLIDATEDSTATEMENTSOFCOMPREHENSIVEINCOME</Role>
      <ShortName>CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>5</Position>
    </Report>
    <Report instance="snx-10q_20210228.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R6.htm</HtmlFileName>
      <LongName>100050 - Statement - CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (PARENTHETICAL)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.synnex.com/20210228/taxonomy/role/StatementCONSOLIDATEDSTATEMENTSOFCOMPREHENSIVEINCOMEPARENTHETICAL</Role>
      <ShortName>CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (PARENTHETICAL)</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>6</Position>
    </Report>
    <Report instance="snx-10q_20210228.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R7.htm</HtmlFileName>
      <LongName>100060 - Statement - CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.synnex.com/20210228/taxonomy/role/StatementCONSOLIDATEDSTATEMENTSOFSTOCKHOLDERSEQUITY</Role>
      <ShortName>CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>7</Position>
    </Report>
    <Report instance="snx-10q_20210228.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R8.htm</HtmlFileName>
      <LongName>100070 - Statement - CONSOLIDATED STATEMENTS OF CASH FLOWS</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.synnex.com/20210228/taxonomy/role/StatementCONSOLIDATEDSTATEMENTSOFCASHFLOWS</Role>
      <ShortName>CONSOLIDATED STATEMENTS OF CASH FLOWS</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>8</Position>
    </Report>
    <Report instance="snx-10q_20210228.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R9.htm</HtmlFileName>
      <LongName>100080 - Disclosure - Organization and Basis of Presentation</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.synnex.com/20210228/taxonomy/role/DisclosureOrganizationAndBasisOfPresentation</Role>
      <ShortName>Organization and Basis of Presentation</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>9</Position>
    </Report>
    <Report instance="snx-10q_20210228.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R10.htm</HtmlFileName>
      <LongName>100090 - Disclosure - Summary of Significant Accounting Policies</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.synnex.com/20210228/taxonomy/role/DisclosureSummaryOfSignificantAccountingPolicies</Role>
      <ShortName>Summary of Significant Accounting Policies</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>10</Position>
    </Report>
    <Report instance="snx-10q_20210228.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R11.htm</HtmlFileName>
      <LongName>100100 - Disclosure - Discontinued Operations</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.synnex.com/20210228/taxonomy/role/DisclosureDiscontinuedOperations</Role>
      <ShortName>Discontinued Operations</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>11</Position>
    </Report>
    <Report instance="snx-10q_20210228.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R12.htm</HtmlFileName>
      <LongName>100110 - Disclosure - Share-Based Compensation</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.synnex.com/20210228/taxonomy/role/DisclosureShareBasedCompensation</Role>
      <ShortName>Share-Based Compensation</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>12</Position>
    </Report>
    <Report instance="snx-10q_20210228.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R13.htm</HtmlFileName>
      <LongName>100120 - Disclosure - Balance Sheet Components</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.synnex.com/20210228/taxonomy/role/DisclosureBalanceSheetComponents</Role>
      <ShortName>Balance Sheet Components</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>13</Position>
    </Report>
    <Report instance="snx-10q_20210228.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R14.htm</HtmlFileName>
      <LongName>100130 - Disclosure - Derivative Instruments</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.synnex.com/20210228/taxonomy/role/DisclosureDerivativeInstruments</Role>
      <ShortName>Derivative Instruments</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>14</Position>
    </Report>
    <Report instance="snx-10q_20210228.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R15.htm</HtmlFileName>
      <LongName>100140 - Disclosure - Fair Value Measurements</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.synnex.com/20210228/taxonomy/role/DisclosureFairValueMeasurements</Role>
      <ShortName>Fair Value Measurements</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>15</Position>
    </Report>
    <Report instance="snx-10q_20210228.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R16.htm</HtmlFileName>
      <LongName>100150 - Disclosure - Accounts Receivable Arrangements</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.synnex.com/20210228/taxonomy/role/DisclosureAccountsReceivableArrangements</Role>
      <ShortName>Accounts Receivable Arrangements</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>16</Position>
    </Report>
    <Report instance="snx-10q_20210228.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R17.htm</HtmlFileName>
      <LongName>100160 - Disclosure - Borrowings</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.synnex.com/20210228/taxonomy/role/DisclosureBorrowings</Role>
      <ShortName>Borrowings</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>17</Position>
    </Report>
    <Report instance="snx-10q_20210228.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R18.htm</HtmlFileName>
      <LongName>100170 - Disclosure - Earnings Per Common Share</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.synnex.com/20210228/taxonomy/role/DisclosureEarningsPerCommonShare</Role>
      <ShortName>Earnings Per Common Share</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>18</Position>
    </Report>
    <Report instance="snx-10q_20210228.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R19.htm</HtmlFileName>
      <LongName>100180 - Disclosure - Geographic Information</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.synnex.com/20210228/taxonomy/role/DisclosureGeographicInformation</Role>
      <ShortName>Geographic Information</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>19</Position>
    </Report>
    <Report instance="snx-10q_20210228.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R20.htm</HtmlFileName>
      <LongName>100190 - Disclosure - Related Party Transactions</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.synnex.com/20210228/taxonomy/role/DisclosureRelatedPartyTransactions</Role>
      <ShortName>Related Party Transactions</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>20</Position>
    </Report>
    <Report instance="snx-10q_20210228.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R21.htm</HtmlFileName>
      <LongName>100200 - Disclosure - Employee Benefit Plans</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.synnex.com/20210228/taxonomy/role/DisclosureEmployeeBenefitPlans</Role>
      <ShortName>Employee Benefit Plans</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>21</Position>
    </Report>
    <Report instance="snx-10q_20210228.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R22.htm</HtmlFileName>
      <LongName>100210 - Disclosure - Equity</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.synnex.com/20210228/taxonomy/role/DisclosureEquity</Role>
      <ShortName>Equity</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>22</Position>
    </Report>
    <Report instance="snx-10q_20210228.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R23.htm</HtmlFileName>
      <LongName>100220 - Disclosure - Leases</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.synnex.com/20210228/taxonomy/role/DisclosureLeases</Role>
      <ShortName>Leases</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>23</Position>
    </Report>
    <Report instance="snx-10q_20210228.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R24.htm</HtmlFileName>
      <LongName>100230 - Disclosure - Commitments  and Contingencies</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.synnex.com/20210228/taxonomy/role/DisclosureCommitmentsAndContingencies</Role>
      <ShortName>Commitments  and Contingencies</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>24</Position>
    </Report>
    <Report instance="snx-10q_20210228.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R25.htm</HtmlFileName>
      <LongName>100240 - Disclosure - Subsequent Events</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.synnex.com/20210228/taxonomy/role/DisclosureSubsequentEvents</Role>
      <ShortName>Subsequent Events</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>25</Position>
    </Report>
    <Report instance="snx-10q_20210228.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R26.htm</HtmlFileName>
      <LongName>100250 - Disclosure - Summary of Significant Accounting Policies (Policies)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.synnex.com/20210228/taxonomy/role/DisclosureSummaryOfSignificantAccountingPoliciesPolicies</Role>
      <ShortName>Summary of Significant Accounting Policies (Policies)</ShortName>
      <MenuCategory>Policies</MenuCategory>
      <ParentRole>http://www.synnex.com/20210228/taxonomy/role/DisclosureSummaryOfSignificantAccountingPolicies</ParentRole>
      <Position>26</Position>
    </Report>
    <Report instance="snx-10q_20210228.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R27.htm</HtmlFileName>
      <LongName>100260 - Disclosure - Discontinued Operations (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.synnex.com/20210228/taxonomy/role/DisclosureDiscontinuedOperationsTables</Role>
      <ShortName>Discontinued Operations (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.synnex.com/20210228/taxonomy/role/DisclosureDiscontinuedOperations</ParentRole>
      <Position>27</Position>
    </Report>
    <Report instance="snx-10q_20210228.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R28.htm</HtmlFileName>
      <LongName>100270 - Disclosure - Share-Based Compensation (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.synnex.com/20210228/taxonomy/role/DisclosureShareBasedCompensationTables</Role>
      <ShortName>Share-Based Compensation (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.synnex.com/20210228/taxonomy/role/DisclosureShareBasedCompensation</ParentRole>
      <Position>28</Position>
    </Report>
    <Report instance="snx-10q_20210228.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R29.htm</HtmlFileName>
      <LongName>100280 - Disclosure - Balance Sheet Components (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.synnex.com/20210228/taxonomy/role/DisclosureBalanceSheetComponentsTables</Role>
      <ShortName>Balance Sheet Components (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.synnex.com/20210228/taxonomy/role/DisclosureBalanceSheetComponents</ParentRole>
      <Position>29</Position>
    </Report>
    <Report instance="snx-10q_20210228.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R30.htm</HtmlFileName>
      <LongName>100290 - Disclosure - Derivative Instruments (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.synnex.com/20210228/taxonomy/role/DisclosureDerivativeInstrumentsTables</Role>
      <ShortName>Derivative Instruments (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.synnex.com/20210228/taxonomy/role/DisclosureDerivativeInstruments</ParentRole>
      <Position>30</Position>
    </Report>
    <Report instance="snx-10q_20210228.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R31.htm</HtmlFileName>
      <LongName>100300 - Disclosure - Fair Value Measurements (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.synnex.com/20210228/taxonomy/role/DisclosureFairValueMeasurementsTables</Role>
      <ShortName>Fair Value Measurements (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.synnex.com/20210228/taxonomy/role/DisclosureFairValueMeasurements</ParentRole>
      <Position>31</Position>
    </Report>
    <Report instance="snx-10q_20210228.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R32.htm</HtmlFileName>
      <LongName>100310 - Disclosure - Accounts Receivable Arrangements (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.synnex.com/20210228/taxonomy/role/DisclosureAccountsReceivableArrangementsTables</Role>
      <ShortName>Accounts Receivable Arrangements (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.synnex.com/20210228/taxonomy/role/DisclosureAccountsReceivableArrangements</ParentRole>
      <Position>32</Position>
    </Report>
    <Report instance="snx-10q_20210228.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R33.htm</HtmlFileName>
      <LongName>100320 - Disclosure - Borrowings (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.synnex.com/20210228/taxonomy/role/DisclosureBorrowingsTables</Role>
      <ShortName>Borrowings (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.synnex.com/20210228/taxonomy/role/DisclosureBorrowings</ParentRole>
      <Position>33</Position>
    </Report>
    <Report instance="snx-10q_20210228.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R34.htm</HtmlFileName>
      <LongName>100330 - Disclosure - Earnings Per Common Share (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.synnex.com/20210228/taxonomy/role/DisclosureEarningsPerCommonShareTables</Role>
      <ShortName>Earnings Per Common Share (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.synnex.com/20210228/taxonomy/role/DisclosureEarningsPerCommonShare</ParentRole>
      <Position>34</Position>
    </Report>
    <Report instance="snx-10q_20210228.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R35.htm</HtmlFileName>
      <LongName>100340 - Disclosure - Geographic Information (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.synnex.com/20210228/taxonomy/role/DisclosureGeographicInformationTables</Role>
      <ShortName>Geographic Information (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.synnex.com/20210228/taxonomy/role/DisclosureGeographicInformation</ParentRole>
      <Position>35</Position>
    </Report>
    <Report instance="snx-10q_20210228.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R36.htm</HtmlFileName>
      <LongName>100350 - Disclosure - Related Party Transactions (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.synnex.com/20210228/taxonomy/role/DisclosureRelatedPartyTransactionsTables</Role>
      <ShortName>Related Party Transactions (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.synnex.com/20210228/taxonomy/role/DisclosureRelatedPartyTransactions</ParentRole>
      <Position>36</Position>
    </Report>
    <Report instance="snx-10q_20210228.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R37.htm</HtmlFileName>
      <LongName>100360 - Disclosure - Leases (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.synnex.com/20210228/taxonomy/role/DisclosureLeasesTables</Role>
      <ShortName>Leases (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.synnex.com/20210228/taxonomy/role/DisclosureLeases</ParentRole>
      <Position>37</Position>
    </Report>
    <Report instance="snx-10q_20210228.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R38.htm</HtmlFileName>
      <LongName>100370 - Disclosure - Organization and Basis of Presentation - Additional Information (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.synnex.com/20210228/taxonomy/role/DisclosureOrganizationAndBasisOfPresentationAdditionalInformationDetails</Role>
      <ShortName>Organization and Basis of Presentation - Additional Information (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>38</Position>
    </Report>
    <Report instance="snx-10q_20210228.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R39.htm</HtmlFileName>
      <LongName>100380 - Disclosure - Summary of Significant Accounting Policies - Concentration of Credit Risk and Revenue Recognition - Additional Information (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.synnex.com/20210228/taxonomy/role/DisclosureSummaryOfSignificantAccountingPoliciesConcentrationOfCreditRiskAndRevenueRecognitionAdditionalInformationDetails</Role>
      <ShortName>Summary of Significant Accounting Policies - Concentration of Credit Risk and Revenue Recognition - Additional Information (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>39</Position>
    </Report>
    <Report instance="snx-10q_20210228.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R40.htm</HtmlFileName>
      <LongName>100390 - Disclosure - Summary of Significant Accounting Policies - Additional Information (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.synnex.com/20210228/taxonomy/role/DisclosureSummaryOfSignificantAccountingPoliciesAdditionalInformationDetails</Role>
      <ShortName>Summary of Significant Accounting Policies - Additional Information (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>40</Position>
    </Report>
    <Report instance="snx-10q_20210228.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R41.htm</HtmlFileName>
      <LongName>100400 - Disclosure - Discontinued Operations - Schedule of Discontinued Operations Income Statement (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.synnex.com/20210228/taxonomy/role/DisclosureDiscontinuedOperationsScheduleOfDiscontinuedOperationsIncomeStatementDetails</Role>
      <ShortName>Discontinued Operations - Schedule of Discontinued Operations Income Statement (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>41</Position>
    </Report>
    <Report instance="snx-10q_20210228.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R42.htm</HtmlFileName>
      <LongName>100410 - Disclosure - Discontinued Operations - Additional Information (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.synnex.com/20210228/taxonomy/role/DisclosureDiscontinuedOperationsAdditionalInformationDetails</Role>
      <ShortName>Discontinued Operations - Additional Information (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>42</Position>
    </Report>
    <Report instance="snx-10q_20210228.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R43.htm</HtmlFileName>
      <LongName>100420 - Disclosure - Discontinued Operations - Summary of Non-Cash Items and Capital Expenditures of Discontinued Operations (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.synnex.com/20210228/taxonomy/role/DisclosureDiscontinuedOperationsSummaryOfNonCashItemsAndCapitalExpendituresOfDiscontinuedOperationsDetails</Role>
      <ShortName>Discontinued Operations - Summary of Non-Cash Items and Capital Expenditures of Discontinued Operations (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>43</Position>
    </Report>
    <Report instance="snx-10q_20210228.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R44.htm</HtmlFileName>
      <LongName>100430 - Disclosure - Discontinued Operations - Schedule of Discontinued Operations Consolidated Balance Sheet (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.synnex.com/20210228/taxonomy/role/DisclosureDiscontinuedOperationsScheduleOfDiscontinuedOperationsConsolidatedBalanceSheetDetails</Role>
      <ShortName>Discontinued Operations - Schedule of Discontinued Operations Consolidated Balance Sheet (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>44</Position>
    </Report>
    <Report instance="snx-10q_20210228.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R45.htm</HtmlFileName>
      <LongName>100440 - Disclosure - Share-Based Compensation - Summary of Share-based Awards Granted (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.synnex.com/20210228/taxonomy/role/DisclosureShareBasedCompensationSummaryOfShareBasedAwardsGrantedDetails</Role>
      <ShortName>Share-Based Compensation - Summary of Share-based Awards Granted (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>45</Position>
    </Report>
    <Report instance="snx-10q_20210228.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R46.htm</HtmlFileName>
      <LongName>100450 - Disclosure - Share-Based Compensation - Share-based Compensation Expenses (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.synnex.com/20210228/taxonomy/role/DisclosureShareBasedCompensationShareBasedCompensationExpensesDetails</Role>
      <ShortName>Share-Based Compensation - Share-based Compensation Expenses (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>46</Position>
    </Report>
    <Report instance="snx-10q_20210228.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R47.htm</HtmlFileName>
      <LongName>100460 - Disclosure - Share-Based Compensation - Additional Information (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.synnex.com/20210228/taxonomy/role/DisclosureShareBasedCompensationAdditionalInformationDetails</Role>
      <ShortName>Share-Based Compensation - Additional Information (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>47</Position>
    </Report>
    <Report instance="snx-10q_20210228.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R48.htm</HtmlFileName>
      <LongName>100470 - Disclosure - Balance Sheet Components - Cash, Cash Equivalents and Restricted Cash (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.synnex.com/20210228/taxonomy/role/DisclosureBalanceSheetComponentsCashCashEquivalentsAndRestrictedCashDetails</Role>
      <ShortName>Balance Sheet Components - Cash, Cash Equivalents and Restricted Cash (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>48</Position>
    </Report>
    <Report instance="snx-10q_20210228.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R49.htm</HtmlFileName>
      <LongName>100480 - Disclosure - Balance Sheet Components - Accounts Receivable, Net (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.synnex.com/20210228/taxonomy/role/DisclosureBalanceSheetComponentsAccountsReceivableNetDetails</Role>
      <ShortName>Balance Sheet Components - Accounts Receivable, Net (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>49</Position>
    </Report>
    <Report instance="snx-10q_20210228.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R50.htm</HtmlFileName>
      <LongName>100490 - Disclosure - Balance Sheet Components - Receivables from Vendors, Net (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.synnex.com/20210228/taxonomy/role/DisclosureBalanceSheetComponentsReceivablesFromVendorsNetDetails</Role>
      <ShortName>Balance Sheet Components - Receivables from Vendors, Net (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>50</Position>
    </Report>
    <Report instance="snx-10q_20210228.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R51.htm</HtmlFileName>
      <LongName>100500 - Disclosure - Balance Sheet Components - Property and Equipment, Net (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.synnex.com/20210228/taxonomy/role/DisclosureBalanceSheetComponentsPropertyAndEquipmentNetDetails</Role>
      <ShortName>Balance Sheet Components - Property and Equipment, Net (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>51</Position>
    </Report>
    <Report instance="snx-10q_20210228.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R52.htm</HtmlFileName>
      <LongName>100510 - Disclosure - Balance Sheet Components - Additional Information (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.synnex.com/20210228/taxonomy/role/DisclosureBalanceSheetComponentsAdditionalInformationDetails</Role>
      <ShortName>Balance Sheet Components - Additional Information (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>52</Position>
    </Report>
    <Report instance="snx-10q_20210228.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R53.htm</HtmlFileName>
      <LongName>100520 - Disclosure - Balance Sheet Components - Goodwill (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.synnex.com/20210228/taxonomy/role/DisclosureBalanceSheetComponentsGoodwillDetails</Role>
      <ShortName>Balance Sheet Components - Goodwill (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>53</Position>
    </Report>
    <Report instance="snx-10q_20210228.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R54.htm</HtmlFileName>
      <LongName>100530 - Disclosure - Balance Sheet Components - Intangible Assets (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.synnex.com/20210228/taxonomy/role/DisclosureBalanceSheetComponentsIntangibleAssetsDetails</Role>
      <ShortName>Balance Sheet Components - Intangible Assets (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>54</Position>
    </Report>
    <Report instance="snx-10q_20210228.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R55.htm</HtmlFileName>
      <LongName>100540 - Disclosure - Balance Sheet Components - Schedule of Estimated Future Amortization Expense of Intangible Assets Including Preliminary Estimate of Amortization of Assets Acquired (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.synnex.com/20210228/taxonomy/role/DisclosureBalanceSheetComponentsScheduleOfEstimatedFutureAmortizationExpenseOfIntangibleAssetsIncludingPreliminaryEstimateOfAmortizationOfAssetsAcquiredDetails</Role>
      <ShortName>Balance Sheet Components - Schedule of Estimated Future Amortization Expense of Intangible Assets Including Preliminary Estimate of Amortization of Assets Acquired (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>55</Position>
    </Report>
    <Report instance="snx-10q_20210228.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R56.htm</HtmlFileName>
      <LongName>100550 - Disclosure - Balance Sheet Components - Summary of Accumulated Other Comprehensive Income (Loss) ("AOCI") (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.synnex.com/20210228/taxonomy/role/DisclosureBalanceSheetComponentsSummaryOfAccumulatedOtherComprehensiveIncomeLossAOCIDetails</Role>
      <ShortName>Balance Sheet Components - Summary of Accumulated Other Comprehensive Income (Loss) ("AOCI") (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>56</Position>
    </Report>
    <Report instance="snx-10q_20210228.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R57.htm</HtmlFileName>
      <LongName>100560 - Disclosure - Derivative Instruments - Additional Information (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.synnex.com/20210228/taxonomy/role/DisclosureDerivativeInstrumentsAdditionalInformationDetails</Role>
      <ShortName>Derivative Instruments - Additional Information (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>57</Position>
    </Report>
    <Report instance="snx-10q_20210228.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R58.htm</HtmlFileName>
      <LongName>100570 - Disclosure - Derivative Instruments - Summary of Fair Values of Derivative Instruments (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.synnex.com/20210228/taxonomy/role/DisclosureDerivativeInstrumentsSummaryOfFairValuesOfDerivativeInstrumentsDetails</Role>
      <ShortName>Derivative Instruments - Summary of Fair Values of Derivative Instruments (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>58</Position>
    </Report>
    <Report instance="snx-10q_20210228.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R59.htm</HtmlFileName>
      <LongName>100580 - Disclosure - Derivative Instruments - Effect of Derivative Instruments on AOCI and Consolidated Statements of Operations (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.synnex.com/20210228/taxonomy/role/DisclosureDerivativeInstrumentsEffectOfDerivativeInstrumentsOnAOCIAndConsolidatedStatementsOfOperationsDetails</Role>
      <ShortName>Derivative Instruments - Effect of Derivative Instruments on AOCI and Consolidated Statements of Operations (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>59</Position>
    </Report>
    <Report instance="snx-10q_20210228.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R60.htm</HtmlFileName>
      <LongName>100590 - Disclosure - Fair Value Measurements - Schedule of Valuation of Investments and Financial Instruments Measured at Fair Value on Recurring Basis (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.synnex.com/20210228/taxonomy/role/DisclosureFairValueMeasurementsScheduleOfValuationOfInvestmentsAndFinancialInstrumentsMeasuredAtFairValueOnRecurringBasisDetails</Role>
      <ShortName>Fair Value Measurements - Schedule of Valuation of Investments and Financial Instruments Measured at Fair Value on Recurring Basis (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>60</Position>
    </Report>
    <Report instance="snx-10q_20210228.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R61.htm</HtmlFileName>
      <LongName>100600 - Disclosure - Fair Value Measurements - Additional Information (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.synnex.com/20210228/taxonomy/role/DisclosureFairValueMeasurementsAdditionalInformationDetails</Role>
      <ShortName>Fair Value Measurements - Additional Information (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>61</Position>
    </Report>
    <Report instance="snx-10q_20210228.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R62.htm</HtmlFileName>
      <LongName>100610 - Disclosure - Accounts Receivable Arrangements - Additional Information (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.synnex.com/20210228/taxonomy/role/DisclosureAccountsReceivableArrangementsAdditionalInformationDetails</Role>
      <ShortName>Accounts Receivable Arrangements - Additional Information (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>62</Position>
    </Report>
    <Report instance="snx-10q_20210228.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R63.htm</HtmlFileName>
      <LongName>100620 - Disclosure - Accounts Receivable Arrangements - Schedule of Net Sales Financed through Financing Agreement (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.synnex.com/20210228/taxonomy/role/DisclosureAccountsReceivableArrangementsScheduleOfNetSalesFinancedThroughFinancingAgreementDetails</Role>
      <ShortName>Accounts Receivable Arrangements - Schedule of Net Sales Financed through Financing Agreement (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>63</Position>
    </Report>
    <Report instance="snx-10q_20210228.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R64.htm</HtmlFileName>
      <LongName>100630 - Disclosure - Borrowings - Schedule of Borrowings (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.synnex.com/20210228/taxonomy/role/DisclosureBorrowingsScheduleOfBorrowingsDetails</Role>
      <ShortName>Borrowings - Schedule of Borrowings (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>64</Position>
    </Report>
    <Report instance="snx-10q_20210228.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R65.htm</HtmlFileName>
      <LongName>100640 - Disclosure - Borrowings - SYNNEX United States Accounts Receivable Securitization Arrangement - Additional Information (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.synnex.com/20210228/taxonomy/role/DisclosureBorrowingsSYNNEXUnitedStatesAccountsReceivableSecuritizationArrangementAdditionalInformationDetails</Role>
      <ShortName>Borrowings - SYNNEX United States Accounts Receivable Securitization Arrangement - Additional Information (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>65</Position>
    </Report>
    <Report instance="snx-10q_20210228.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R66.htm</HtmlFileName>
      <LongName>100650 - Disclosure - Borrowings - SYNNEX Canada Accounts Receivable Securitization Arrangement - Additional Information (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.synnex.com/20210228/taxonomy/role/DisclosureBorrowingsSYNNEXCanadaAccountsReceivableSecuritizationArrangementAdditionalInformationDetails</Role>
      <ShortName>Borrowings - SYNNEX Canada Accounts Receivable Securitization Arrangement - Additional Information (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>66</Position>
    </Report>
    <Report instance="snx-10q_20210228.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R67.htm</HtmlFileName>
      <LongName>100660 - Disclosure - Borrowings - SYNNEX Japan Credit Facility - Additional Information (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.synnex.com/20210228/taxonomy/role/DisclosureBorrowingsSYNNEXJapanCreditFacilityAdditionalInformationDetails</Role>
      <ShortName>Borrowings - SYNNEX Japan Credit Facility - Additional Information (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>67</Position>
    </Report>
    <Report instance="snx-10q_20210228.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R68.htm</HtmlFileName>
      <LongName>100670 - Disclosure - Borrowings - SYNNEX United States Credit Agreement - Additional Information (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.synnex.com/20210228/taxonomy/role/DisclosureBorrowingsSYNNEXUnitedStatesCreditAgreementAdditionalInformationDetails</Role>
      <ShortName>Borrowings - SYNNEX United States Credit Agreement - Additional Information (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>68</Position>
    </Report>
    <Report instance="snx-10q_20210228.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R69.htm</HtmlFileName>
      <LongName>100680 - Disclosure - Borrowings - SYNNEX United States Term Loan Credit Agreement - Additional Information (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.synnex.com/20210228/taxonomy/role/DisclosureBorrowingsSYNNEXUnitedStatesTermLoanCreditAgreementAdditionalInformationDetails</Role>
      <ShortName>Borrowings - SYNNEX United States Term Loan Credit Agreement - Additional Information (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>69</Position>
    </Report>
    <Report instance="snx-10q_20210228.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R70.htm</HtmlFileName>
      <LongName>100690 - Disclosure - Borrowings - SYNNEX Canada Revolving Line of Credit - Additional Information (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.synnex.com/20210228/taxonomy/role/DisclosureBorrowingsSYNNEXCanadaRevolvingLineOfCreditAdditionalInformationDetails</Role>
      <ShortName>Borrowings - SYNNEX Canada Revolving Line of Credit - Additional Information (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>70</Position>
    </Report>
    <Report instance="snx-10q_20210228.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R71.htm</HtmlFileName>
      <LongName>100700 - Disclosure - Borrowings - Other Borrowings and Term Debt - Additional Information (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.synnex.com/20210228/taxonomy/role/DisclosureBorrowingsOtherBorrowingsAndTermDebtAdditionalInformationDetails</Role>
      <ShortName>Borrowings - Other Borrowings and Term Debt - Additional Information (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>71</Position>
    </Report>
    <Report instance="snx-10q_20210228.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R72.htm</HtmlFileName>
      <LongName>100710 - Disclosure - Borrowings - Schedule of Future Principal Payments (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.synnex.com/20210228/taxonomy/role/DisclosureBorrowingsScheduleOfFuturePrincipalPaymentsDetails</Role>
      <ShortName>Borrowings - Schedule of Future Principal Payments (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>72</Position>
    </Report>
    <Report instance="snx-10q_20210228.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R73.htm</HtmlFileName>
      <LongName>100720 - Disclosure - Borrowings - Interest Expense and Finance Charges - Additional Information (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.synnex.com/20210228/taxonomy/role/DisclosureBorrowingsInterestExpenseAndFinanceChargesAdditionalInformationDetails</Role>
      <ShortName>Borrowings - Interest Expense and Finance Charges - Additional Information (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>73</Position>
    </Report>
    <Report instance="snx-10q_20210228.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R74.htm</HtmlFileName>
      <LongName>100730 - Disclosure - Earnings Per Common Share - Schedule of Basic and Diluted Earnings Per Common Share (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.synnex.com/20210228/taxonomy/role/DisclosureEarningsPerCommonShareScheduleOfBasicAndDilutedEarningsPerCommonShareDetails</Role>
      <ShortName>Earnings Per Common Share - Schedule of Basic and Diluted Earnings Per Common Share (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>74</Position>
    </Report>
    <Report instance="snx-10q_20210228.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R75.htm</HtmlFileName>
      <LongName>100740 - Disclosure - Geographic Information - Summary of Revenue and Property and Equipment, Net (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.synnex.com/20210228/taxonomy/role/DisclosureGeographicInformationSummaryOfRevenueAndPropertyAndEquipmentNetDetails</Role>
      <ShortName>Geographic Information - Summary of Revenue and Property and Equipment, Net (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>75</Position>
    </Report>
    <Report instance="snx-10q_20210228.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R76.htm</HtmlFileName>
      <LongName>100750 - Disclosure - Related Party Transactions - Additional Information (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.synnex.com/20210228/taxonomy/role/DisclosureRelatedPartyTransactionsAdditionalInformationDetails</Role>
      <ShortName>Related Party Transactions - Additional Information (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>76</Position>
    </Report>
    <Report instance="snx-10q_20210228.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R77.htm</HtmlFileName>
      <LongName>100760 - Disclosure - Related Party Transactions - Schedule of Beneficial Ownership of Company's Common Stock by Related Party (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.synnex.com/20210228/taxonomy/role/DisclosureRelatedPartyTransactionsScheduleOfBeneficialOwnershipOfCompanySCommonStockByRelatedPartyDetails</Role>
      <ShortName>Related Party Transactions - Schedule of Beneficial Ownership of Company's Common Stock by Related Party (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>77</Position>
    </Report>
    <Report instance="snx-10q_20210228.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R78.htm</HtmlFileName>
      <LongName>100770 - Disclosure - Related Party Transactions - Schedule of Beneficial Ownership of Company's Common Stock by Related Party (Parenthetical) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.synnex.com/20210228/taxonomy/role/DisclosureRelatedPartyTransactionsScheduleOfBeneficialOwnershipOfCompanySCommonStockByRelatedPartyParentheticalDetails</Role>
      <ShortName>Related Party Transactions - Schedule of Beneficial Ownership of Company's Common Stock by Related Party (Parenthetical) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>78</Position>
    </Report>
    <Report instance="snx-10q_20210228.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R79.htm</HtmlFileName>
      <LongName>100780 - Disclosure - Related Party Transactions - Schedule of Related Party Transactions (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.synnex.com/20210228/taxonomy/role/DisclosureRelatedPartyTransactionsScheduleOfRelatedPartyTransactionsDetails</Role>
      <ShortName>Related Party Transactions - Schedule of Related Party Transactions (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>79</Position>
    </Report>
    <Report instance="snx-10q_20210228.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R80.htm</HtmlFileName>
      <LongName>100790 - Disclosure - Related Party Transactions - Schedule of Receivable from Payable To and Investment On Related Party (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.synnex.com/20210228/taxonomy/role/DisclosureRelatedPartyTransactionsScheduleOfReceivableFromPayableToAndInvestmentOnRelatedPartyDetails</Role>
      <ShortName>Related Party Transactions - Schedule of Receivable from Payable To and Investment On Related Party (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>80</Position>
    </Report>
    <Report instance="snx-10q_20210228.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R81.htm</HtmlFileName>
      <LongName>100800 - Disclosure - Employee Benefit Plans - Additional Information (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.synnex.com/20210228/taxonomy/role/DisclosureEmployeeBenefitPlansAdditionalInformationDetails</Role>
      <ShortName>Employee Benefit Plans - Additional Information (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>81</Position>
    </Report>
    <Report instance="snx-10q_20210228.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R82.htm</HtmlFileName>
      <LongName>100810 - Disclosure - Equity - Share Repurchase Program - Additional Information (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.synnex.com/20210228/taxonomy/role/DisclosureEquityShareRepurchaseProgramAdditionalInformationDetails</Role>
      <ShortName>Equity - Share Repurchase Program - Additional Information (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>82</Position>
    </Report>
    <Report instance="snx-10q_20210228.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R83.htm</HtmlFileName>
      <LongName>100820 - Disclosure - Equity - Dividends - Additional Information (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.synnex.com/20210228/taxonomy/role/DisclosureEquityDividendsAdditionalInformationDetails</Role>
      <ShortName>Equity - Dividends - Additional Information (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>83</Position>
    </Report>
    <Report instance="snx-10q_20210228.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R84.htm</HtmlFileName>
      <LongName>100830 - Disclosure - Leases - Additional Information (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.synnex.com/20210228/taxonomy/role/DisclosureLeasesAdditionalInformationDetails</Role>
      <ShortName>Leases - Additional Information (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>84</Position>
    </Report>
    <Report instance="snx-10q_20210228.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R85.htm</HtmlFileName>
      <LongName>100840 - Disclosure - Leases - Schedule of Various Components of Lease Costs (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.synnex.com/20210228/taxonomy/role/DisclosureLeasesScheduleOfVariousComponentsOfLeaseCostsDetails</Role>
      <ShortName>Leases - Schedule of Various Components of Lease Costs (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>85</Position>
    </Report>
    <Report instance="snx-10q_20210228.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R86.htm</HtmlFileName>
      <LongName>100850 - Disclosure - Leases - Schedule of Maturity Analysis of Expected Undiscounted Cash Flows for Operating Leases on an Annual Basis (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.synnex.com/20210228/taxonomy/role/DisclosureLeasesScheduleOfMaturityAnalysisOfExpectedUndiscountedCashFlowsForOperatingLeasesOnAnnualBasisDetails</Role>
      <ShortName>Leases - Schedule of Maturity Analysis of Expected Undiscounted Cash Flows for Operating Leases on an Annual Basis (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>86</Position>
    </Report>
    <Report instance="snx-10q_20210228.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R87.htm</HtmlFileName>
      <LongName>100870 - Disclosure - Leases - Schedule of Amounts Recorded in Consolidated Balance Sheet (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.synnex.com/20210228/taxonomy/role/DisclosureLeasesScheduleOfAmountsRecordedInConsolidatedBalanceSheetDetails</Role>
      <ShortName>Leases - Schedule of Amounts Recorded in Consolidated Balance Sheet (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>87</Position>
    </Report>
    <Report instance="snx-10q_20210228.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R88.htm</HtmlFileName>
      <LongName>100880 - Disclosure - Leases - Schedule of Supplemental Cash Flow Information Related to Operating Leases (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.synnex.com/20210228/taxonomy/role/DisclosureLeasesScheduleOfSupplementalCashFlowInformationRelatedToOperatingLeasesDetails</Role>
      <ShortName>Leases - Schedule of Supplemental Cash Flow Information Related to Operating Leases (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>88</Position>
    </Report>
    <Report instance="snx-10q_20210228.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R89.htm</HtmlFileName>
      <LongName>100890 - Disclosure - Leases - Schedule of Weighted-Average Remaining Lease Term and Discount Rate (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.synnex.com/20210228/taxonomy/role/DisclosureLeasesScheduleOfWeightedAverageRemainingLeaseTermAndDiscountRateDetails</Role>
      <ShortName>Leases - Schedule of Weighted-Average Remaining Lease Term and Discount Rate (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>89</Position>
    </Report>
    <Report instance="snx-10q_20210228.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R90.htm</HtmlFileName>
      <LongName>100900 - Disclosure - Subsequent Events - Additional Information (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.synnex.com/20210228/taxonomy/role/DisclosureSubsequentEventsAdditionalInformationDetails</Role>
      <ShortName>Subsequent Events - Additional Information (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>90</Position>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <LongName>All Reports</LongName>
      <ReportType>Book</ReportType>
      <ShortName>All Reports</ShortName>
    </Report>
  </MyReports>
  <InputFiles>
    <File doctype="10-Q" original="snx-10q_20210228.htm">snx-10q_20210228.htm</File>
    <File>snx-20210228.xsd</File>
    <File>snx-20210228_cal.xml</File>
    <File>snx-20210228_def.xml</File>
    <File>snx-20210228_lab.xml</File>
    <File>snx-20210228_pre.xml</File>
    <File>snx-ex105_835.htm</File>
    <File>snx-ex311_8.htm</File>
    <File>snx-ex312_6.htm</File>
    <File>snx-ex321_7.htm</File>
  </InputFiles>
  <SupplementalFiles>
    <File>gvs0ibwpm5po000001.jpg</File>
  </SupplementalFiles>
  <BaseTaxonomies>
    <BaseTaxonomy>http://xbrl.sec.gov/country/2020-01-31</BaseTaxonomy>
    <BaseTaxonomy>http://fasb.org/srt/2020-01-31</BaseTaxonomy>
    <BaseTaxonomy>http://xbrl.sec.gov/dei/2020-01-31</BaseTaxonomy>
    <BaseTaxonomy>http://fasb.org/us-gaap/2020-01-31</BaseTaxonomy>
  </BaseTaxonomies>
  <HasPresentationLinkbase>true</HasPresentationLinkbase>
  <HasCalculationLinkbase>true</HasCalculationLinkbase>
</FilingSummary>
