EARNINGS PER SHARE AND STOCKHOLDERS' EQUITY: (Details) (USD $)	1 Months Ended	3 Months Ended
	Aug. 31, 2011	Jun. 30, 2014	Jun. 30, 2013	Mar. 31, 2014
Stockholders' Equity
Maximum amount of common stock that may be repurchased	$ 250,000,000
Shares repurchased		0
Repurchase of treasury stock			16,139,000
Cumulative amount paid for repurchase of treasury stock		931,470,000		928,203,000
Remaining capacity under the stock repurchase program		57,400,000
Basic earnings per share:
Net earnings from continuing operations		(6,072,000)	12,503,000
Net earnings from discontinued operations		(1,532,000)	592,000
Net earnings		(7,604,000)	13,095,000
Net gain (loss) attributable to noncontrolling interest			(85,000)
Net earnings attributable to Acxiom		(7,604,000)	13,180,000
Basic weighted-average shares outstanding		76,833,000	73,679,000
Net earnings (loss) from continuing operations (in dollars per share)		$ (0.08)	$ 0.17
Net earnings from discontinued operations (in dollars per share)		$ (0.02)	$ 0.01
Net earnings (in dollars per share)		$ (0.10)	$ 0.18
Net earnings attributable to Acxiom (in dollars per share)		$ (0.10)	$ 0.18
Diluted earnings per share:
Basic weighted-average shares outstanding		76,833,000	73,679,000
Dilutive effect of common stock options, warrants, and restricted stock as computed under the treasury stock method (in shares)			1,812,000
Diluted weighted-average shares outstanding		76,833,000	75,491,000
Net earnings (loss) from continuing operations (in dollars per share)		$ (0.08)	$ 0.17
Net earnings from discontinued operations (in dollars per share)		$ (0.02)	$ 0.01
Net earnings (in dollars per share)		$ (0.10)	$ 0.17
Net earnings attributable to Acxiom (in dollars per share)		$ (0.10)	$ 0.17
Stockholders' Equity
Number of shares outstanding under options, warrants and restricted stock units		1,872,000	4,018,000
Minimum [Member]
EARNINGS PER SHARE AND STOCKHOLDERS' EQUITY:
Range of exercise prices for options and warrants (in dollars per share)		$ 21.17	$ 21.06
Maximum [Member]
EARNINGS PER SHARE AND STOCKHOLDERS' EQUITY:
Range of exercise prices for options and warrants (in dollars per share)		$ 62.06	$ 62.06
Common Stock Repurchase Program [Member]
Stockholders' Equity
Cumulative shares repurchased		12,300,000
Cumulative amount paid for repurchase of treasury stock		$ 192,600,000