Line of Credit Facility, Accordion Feature Amount

No definition available.

Name:	snx_LineOfCreditFacilityAccordionFeatureAmount
Namespace Prefix:	snx_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Unused portion of the commitment that exceeded the threshold.

+ References

No definition available.

+ Details

Name:	snx_UnusedPortionExceededThreshold
Namespace Prefix:	snx_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ References

No definition available.

+ Details

Name:	us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

+ Details

Name:	us-gaap_DebtInstrumentInterestRateStatedPercentage
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- 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

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

- Definition

The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(22))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(16))
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(16))
-URI http://asc.fasb.org/extlink&oid=119400593&loc=d3e572229-122910

+ Details

Name:	us-gaap_LineOfCredit
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount of current borrowing capacity under the credit facility considering any current restrictions on the amount that could be borrowed (for example, borrowings may be limited by the amount of current assets), but without considering any amounts currently outstanding under the facility.

+ References

+ Details

Name:	us-gaap_LineOfCreditFacilityCurrentBorrowingCapacity
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).

+ References

+ Details

Name:	us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The fee, expressed as a percentage of the line of credit facility, for available but unused credit capacity under the credit facility.

+ References

No definition available.

+ Details

Name:	us-gaap_LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Details

Name:	dei_LegalEntityAxis=snx_SynnexCanadaLimitedMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_CreditFacilityAxis=snx_ARArrangementMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis=us-gaap_TradeAccountsReceivableMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_RangeAxis=srt_MaximumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	snx_UnusedPortionAxis=snx_UnusedPortionOfCommitmentUpToCAD60000Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	snx_UnusedPortionAxis=snx_UnusedPortionOfCommitmentInExcessOfCAD60000Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	snx_UnusedPortionOfCommitmentInExcessOfCAD60000Axis=snx_FirstCAD25000OfUnusedPortionMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	snx_UnusedPortionOfCommitmentInExcessOfCAD60000Axis=snx_RemainingUnusedPortionMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	snx_UsedPortionAxis=snx_ProgramFeeMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_VariableRateAxis=snx_CanadianDollarOfferedRateMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Borrowings - SYNNEX Canada Accounts Receivable Securitization Arrangement - Additional Information (Details) - SYNNEX Canada - AR Arrangement - Trade Accounts Receivable	9 Months Ended
	Aug. 31, 2019 USD ($)	Aug. 31, 2019 CAD ($)	Nov. 30, 2018 USD ($)
Debt Instrument [Line Items]
Line of credit facility, borrowing capacity	$ 75,120,000	$ 100,000,000
Line of credit facility, accordion feature amount	37,560,000	50,000,000
Credit facility, outstanding borrowings	0		$ 0
Maximum
Debt Instrument [Line Items]
Threshold to collect additional unused line fee	45,072,000	60,000,000
Unused portion exceeded threshold	$ 18,780,000	$ 25,000,000
Unused Portion of Commitment up to CAD60,000
Debt Instrument [Line Items]
Unused line fees or commitment fees	0.40%
Unused Portion of Commitment in Excess of CAD60,000 \| First CAD25,000 of the Unused Portion
Debt Instrument [Line Items]
Unused line fees or commitment fees	0.40%
Unused Portion of Commitment in Excess of CAD60,000 \| Remaining Unused Portion
Debt Instrument [Line Items]
Unused line fees or commitment fees	0.55%
ProgramFee
Debt Instrument [Line Items]
Program fee	0.75%	0.75%
Canadian Dollar Offered Rate
Debt Instrument [Line Items]
Interest rate	2.00%