Document and Entity Information Document - USD ($)	12 Months Ended
	Jan. 31, 2020	Mar. 23, 2020	Jul. 31, 2019
Document and Entity Information [Abstract]
Amendment Flag	true
Entity Filer Category	Large Accelerated Filer
Title of 12(b) Security	Common stock, par value $.0015 per share
Entity Incorporation, State or Country Code	FL
Entity Tax Identification Number	59-1578329
Document Type	10-K/A
Document Annual Report	true
Document Period End Date	Jan. 31, 2020
Document Transition Report	false
Entity File Number	0-14625
Entity Registrant Name	TECH DATA CORPORATION
Entity Address, Address Line One	5350 Tech Data Drive
Entity Address, City or Town	Clearwater,
Entity Address, State or Province	FL
Entity Address, Postal Zip Code	33760
City Area Code	727
Local Phone Number	539-7429
Trading Symbol	TECD
Security Exchange Name	NASDAQ
Entity Well-known Seasoned Issuer	Yes
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Shell Company	false
Entity Public Float			$ 3,606,348,983
Entity Common Stock, Shares Outstanding		35,498,777
Document Fiscal Year Focus	2020
Document Fiscal Period Focus	FY
Entity Central Index Key	0000790703
Current Fiscal Year End Date	--01-31
Amendment Description	Tech Data Corporation, which we refer to as "Tech Data,” "we," "our," "us" or the “Company,” is filing this Amendment No. 1 to Form 10-K on Form 10-K/A (the "Form 10-K/A") to amend the Company's Annual Report on Form 10-K for the fiscal year ended January 31, 2020 (the "Form 10-K"), which was filed with the Securities and Exchange Commission (the "SEC") on March 25, 2020. The purpose of this Form 10-K/A is solely to disclose the information required in Part III (Items 10, 11, 12, 13 and 14) of the Form 10-K, which information was previously omitted from the Form 10-K in reliance on General Instruction G(3) to Form 10-K.
Entity Small Business	false
Entity Emerging Growth Company	false