Earnings Per Share ("EPS") (Earnings Per Share Basic And Diluted) (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended								12 Months Ended
	Jan. 31, 2015	Oct. 31, 2014	Jul. 31, 2014	Apr. 30, 2014	Jan. 31, 2014	Oct. 31, 2013	Jul. 31, 2013	Apr. 30, 2013	Jan. 31, 2015	Jan. 31, 2014	Jan. 31, 2013
Earnings Per Share [Abstract]
Net Income (Loss) Available to Common Stockholders, Basic										$ 179,932	$ 176,255
Net income attributable to shareholders of Tech Data Corporation	$ 80,677	$ 41,700	$ 39,328	$ 13,467	$ 109,761	$ 37,716	$ 14,695	$ 17,760	$ 175,172	$ 179,932	$ 176,255
Weighted average shares, basic									38,172	38,020	38,871
Equity-based awards, Weighted average shares									182	208	309
Weighted average shares, diluted									38,354	38,228	39,180
Basic (in USD per share)	$ 2.12	$ 1.09	$ 1.03	$ 0.35	$ 2.88	$ 0.99	$ 0.39	$ 0.47	$ 4.59	$ 4.73	$ 4.53
Diluted (in USD per share)	$ 2.11	$ 1.09	$ 1.03	$ 0.35	$ 2.87	$ 0.99	$ 0.38	$ 0.47	$ 4.57	$ 4.71	$ 4.50