Earning Per Share and Diluted (Detail) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jul. 31, 2012	Jul. 31, 2011	Jul. 31, 2012	Jul. 31, 2011
Net income per common share attributable to shareholders of Tech Data Corporation-basic, Net income attributable to Tech Data Corporation	$ 34,458	$ 50,107	$ 86,150	$ 98,808
Net income per common share attributable to shareholders of Tech Data Corporation-diluted, Net income attributable to Tech Data Corporation	$ 34,458	$ 50,107	$ 86,150	$ 98,808
Net income per common share attributable to shareholders of Tech Data Corporation-basic, Weighted average shares	38,826	45,097	39,977	46,129
Effect of dilutive securities: Equity-based awards, Weighted average shares	229	499	337	607
Net income per common share attributable to shareholders of Tech Data Corporation-diluted, Weighted average shares	39,055	45,596	40,314	46,736
Net income per common share attributable to shareholders of Tech Data Corporation-basic	$ 0.89	$ 1.11	$ 2.15	$ 2.14
Net income per common share attributable to shareholders of Tech Data Corporation-diluted	$ 0.88	$ 1.10	$ 2.14	$ 2.11