Line of Credit, Amount Outstanding

No definition available.

Name:	tecd_LineofCreditAmountOutstanding
Namespace Prefix:	tecd_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Standby letters of credit.

+ References

No definition available.

+ Details

Name:	tecd_StandbyLettersOfCredit
Namespace Prefix:	tecd_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount, after allowance for credit loss, of right to consideration from customer for product sold and service rendered in normal course of business, classified as current.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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+ Details

Name:	us-gaap_AccountsReceivableNetCurrent
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Face (par) amount of debt instrument at time of issuance.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
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+ Details

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

- Definition

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

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
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+ Details

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

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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+ Details

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

- Definition

The effective interest rate at the end of the reporting period.

+ References

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-Publisher FASB
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+ Details

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

- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
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+ Details

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

- Definition

Including the current and noncurrent portions, aggregate carrying value as of the balance sheet date of loans payable (with maturities initially due after one year or beyond the operating cycle if longer).

+ References

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+ Details

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

- Details

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

- Details

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

- Details

Name:	us-gaap_DebtInstrumentAxis=tecd_A5yearmaturityMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_CreditFacilityAxis=tecd_A2016TermloancreditagreementMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

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

- Details

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

- Details

Name:	us-gaap_SubsequentEventTypeAxis=us-gaap_SubsequentEventMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_CreditFacilityAxis=tecd_A2019TermloancreditagreementMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=tecd_A2yearmaturityMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_LongtermDebtTypeAxis=tecd_TermLoanMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Debt \| Other Credit Facilities (Details) - USD ($)	Aug. 02, 2019	Jul. 31, 2019	Jan. 31, 2019	Nov. 02, 2016
Line of Credit Facility
Accounts receivable, net		$ 5,390,102,000	$ 6,241,740,000
Standby Letters Of Credit		23,700,000
Credit Agreement
Line of Credit Facility
Line of Credit, Amount Outstanding		0	$ 0
Line of Credit Facility, Maximum Borrowing Capacity		1,750,000,000
Line of Credit Facility, Current Borrowing Capacity		$ 1,500,000,000
Term loan credit agreement
Line of Credit Facility
Debt Instrument, Face Amount				$ 1,000,000,000.0
Term loan credit agreement \| 5 year maturity
Line of Credit Facility
Debt Instrument, Interest Rate, Stated Percentage		6.00%	3.99%
2016 Term loan credit agreement [Member] \| 5 year maturity
Line of Credit Facility
Debt Instrument, Face Amount		$ 300,000,000	$ 300,000,000
Receivables Securitization Program
Line of Credit Facility
Line of Credit, Amount Outstanding		0	0
Line of Credit Facility, Maximum Borrowing Capacity		1,000,000,000.0
Accounts receivable, net		1,600,000,000	$ 1,700,000,000
Other Committed And Uncommitted Revolving Credit Facilities
Line of Credit Facility
Line of Credit Facility, Maximum Borrowing Capacity		$ 433,200,000
Line of Credit Facility, Interest Rate at Period End		8.08%	8.05%
Subsequent Event [Member] \| 2019 Term loan credit agreement [Member] \| 2 year maturity [Member]
Line of Credit Facility
Line of Credit Facility, Maximum Borrowing Capacity	$ 500,000,000
Debt Instrument, Face Amount	$ 300,000,000
Term Loan
Line of Credit Facility
Loans Payable		$ 300,000,000	$ 300,000,000