EARNINGS PER SHARE AND STOCKHOLDERS' EQUITY: (Details) (USD $)	3 Months Ended			3 Months Ended				0 Months Ended	3 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Mar. 31, 2013	Jun. 30, 2013 Maximum	Jun. 30, 2012 Maximum	Jun. 30, 2013 Minimum	Jun. 30, 2012 Minimum	Aug. 29, 2011 2011 Common stock repurchase program	Jun. 30, 2013 2011 Common stock repurchase program
EARNINGS PER SHARE AND STOCKHOLDERS' EQUITY:
Range of exercise prices for options and warrants (in dollars per share)				$ 62.06	$ 62.06	$ 21.06	$ 13.74
Stockholders' Equity
Maximum amount of common stock that may be repurchased								$ 200,000,000
Shares repurchased									700,000
Repurchase of treasury stock	16,139,000	33,097,000							16,100,000
Cumulative shares repurchased									11,100,000
Cumulative amount paid for repurchase of treasury stock	900,510,000		882,959,000						156,100,000
Remaining capacity under the stock repurchase program									43,900,000
Basic earnings per share:
Net earnings	13,095,000	13,199,000
Net loss attributable to noncontrolling interest	(85,000)	(134,000)
Net earnings attributable to Acxiom	13,180,000	13,333,000
Basic weighted-average shares outstanding	73,679,000	76,473,000
Net earnings (in dollars per share)	$ 0.18	$ 0.17
Net earnings attributable to Acxiom (in dollars per share)	$ 0.18	$ 0.17
Diluted earnings per share:
Basic weighted-average shares outstanding	73,679,000	76,473,000
Dilutive effect of common stock options, warrants, and restricted stock as computed under the treasury stock method (in shares)	1,812,000	1,584,000
Diluted weighted-average shares outstanding	75,491,000	78,057,000
Diluted (in dollars per share)	$ 0.17	$ 0.17
Net earnings (loss) attributable to Acxiom (in dollars per share)	$ 0.17	$ 0.17
Stockholders' Equity
Outstanding options and warrants for the purchase of common stock (in shares)	9,400,000
Outstanding restricted stock units for purchase of common stock (in shares)	2,200,000
Number of shares outstanding under options, warrants and restricted stock units	4,018,000	8,117,000
Accumulated Other Comprehensive Income
Foreign currency translation	9,428,000		12,175,000
Unrealized loss on interest rate swap	(554,000)		(752,000)
Accumulated Other Comprehensive Income	$ 8,874,000		$ 11,423,000