Fair Value Of Financial Instruments (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
Jan. 31, 2012	Jan. 31, 2011
Fair Value Of Financial Instruments [Abstract]
Net unrealized gain on foreign currency forward contracts	$ 6.6	$ 11.1
Net unrealized loss on foreign currency forward contracts	11.9	11.3
Fair value of the Company's nonqualified employee benefit plan investments	32.7
Fair value of the Company's nonqualified employee benefit plan related liabilities	$ 29.5

Unrealized gain on foreign currency derivatives, foreign exchange receivable

No definition available.

Name:	tecd_UnrealizedGainOnForeignCurrencyDerivativesForeignExchangeReceivable
Namespace Prefix:	tecd_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Unrealized loss on foreign currency derivatives, foreign exchange payable

+ References

No definition available.

+ Details

Name:	tecd_UnrealizedLossOnForeignCurrencyDerivativesForeignExchangePayable
Namespace Prefix:	tecd_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Aggregate carrying value as of the balance sheet date of the liabilities for all deferred compensation arrangements. Represents currently earned compensation under compensation arrangements that is not actually paid until a later date.

+ References

No definition available.

+ Details

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

- Definition

Carrying amount as of the balance sheet date of assets held under deferred compensation agreements.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 17

-Article 5

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.17)

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

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

- Details

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