Document And Entity Information - USD ($)	12 Months Ended
	Jan. 31, 2020	Mar. 23, 2020	Jul. 31, 2019
Document and Entity Information [Abstract]
Title of 12(b) Security	Common stock, par value $.0015 per share
Document Type	10-K
Amendment Flag	false
Document Period End Date	Jan. 31, 2020
Document Fiscal Year Focus	2020
Document Fiscal Period Focus	FY
Trading Symbol	TECD
Entity Registrant Name	TECH DATA CORPORATION
Entity Central Index Key	0000790703
Current Fiscal Year End Date	--01-31
Entity Filer Category	Large Accelerated Filer
Entity Voluntary Filers	No
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Current Reporting Status	Yes
Entity Well-known Seasoned Issuer	Yes
Entity Public Float			$ 3,606,348,983
Entity Common Stock, Shares Outstanding		35,498,777
Document Annual Report	true
Document Transition Report	false
Entity File Number	0-14625
Entity Incorporation, State or Country Code	FL
Entity Address, Address Line One	5350 Tech Data Drive
Entity Address, City or Town	Clearwater
Entity Address, State or Province	FL
Entity Tax Identification Number	59-1578329
Entity Address, Postal Zip Code	33760
City Area Code	727
Local Phone Number	539-7429
Security Exchange Name	NASDAQ
Entity Interactive Data Current	Yes