EARNINGS PER SHARE AND STOCKHOLDERS' EQUITY (Details) (USD $)	1 Months Ended				3 Months Ended		9 Months Ended
	Dec. 01, 2012	Dec. 31, 2011	Nov. 30, 2011	Aug. 31, 2011 M	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2011	Dec. 31, 2010
Basic earnings per share:
Net earnings from continuing operations					$ 1,837,000	$ 19,973,000	$ 22,775,000	$ 39,856,000
Net earnings from discontinued operations					814,000	441,000	2,868,000	2,691,000
Net earnings					2,651,000	20,414,000	25,643,000	42,547,000
Net loss attributable to noncontrolling interest					(5,279,000)	(409,000)	(5,554,000)	(1,362,000)
Net earnings attributable to Acxiom					7,930,000	20,823,000	31,197,000	43,909,000
Basic weighted-average shares outstanding					78,189,000	80,233,000	80,039,000	80,007,000
Continuing operations (in dollars per share)					$ 0.02	$ 0.25	$ 0.28	$ 0.50
Discontinued operations (in dollars per share)					$ 0.01	$ 0.01	$ 0.04	$ 0.03
Net earnings (in dollars per share)					$ 0.03	$ 0.25	$ 0.32	$ 0.53
Net loss attributable to noncontrolling interest (in dollars per share)					$ (0.07)	$ (0.01)	$ (0.07)	$ (0.02)
Net earnings attributable to Acxiom (in dollars per share)					$ 0.10	$ 0.26	$ 0.39	$ 0.55
Diluted earnings per share:
Net earnings from continuing operations					1,837,000	19,973,000	22,775,000	39,856,000
Net earnings from discontinued operations					814,000	441,000	2,868,000	2,691,000
Net earnings					2,651,000	20,414,000	25,643,000	42,547,000
Net loss attributable to noncontrolling interest					(5,279,000)	(409,000)	(5,554,000)	(1,362,000)
Net earnings attributable to Acxiom					7,930,000	20,823,000	31,197,000	43,909,000
Basic weighted-average shares outstanding					78,189,000	80,233,000	80,039,000	80,007,000
Dilutive effect of common stock options, warrants, and restricted stock as computed under the treasury stock method (in shares)					831,000	1,865,000	838,000	1,606,000
Diluted weighted-average shares outstanding					79,020,000	82,098,000	80,877,000	81,613,000
Continuing operations (in dollars per share)					$ 0.02	$ 0.24	$ 0.28	$ 0.49
Discontinued operations (in dollars per share)					$ 0.01	$ 0.01	$ 0.04	$ 0.03
Net earnings (in dollars per share)					$ 0.03	$ 0.25	$ 0.32	$ 0.52
Net loss attributable to noncontrolling interest (in dollars per share)					$ (0.07)	$ 0.00	$ (0.07)	$ (0.02)
Net earnings attributable to Acxiom (in dollars per share)					$ 0.10	$ 0.25	$ 0.39	$ 0.54
Stockholders' Equity
Outstanding options and warrants for the purchase of common stock (in shares)		9,900,000			9,900,000		9,900,000
Outstanding restricted stock units for purchase of common stock (in shares)		1,600,000			1,600,000		1,600,000
Number of shares outstanding under options, warrants and restricted stock units					9,515,000	5,647,000	9,438,000	5,969,000
Stockholders' Equity
Period of common stock repurchase program (in months)				12
Maximum amount of common stock that may be repurchased	89,100,000			50,000,000
Payment for repurchase of common stock		43,100,000	39,100,000				42,827,000
Shares repurchased		4,000,000
Cash paid for repurchases that differ from the aggregate purchase price		$ 42,800,000
Maximum
Statement [Line Items]
Range of exercise prices for options and warrants (in dollars per share)					$ 62.06	$ 62.06	$ 62.06	$ 75.55
Minimum
Statement [Line Items]
Range of exercise prices for options and warrants (in dollars per share)					$ 12.25	$ 17.76	$ 13.14	$ 16.71