This element represents the income or loss from continuing operations attributable to the economic entity which may also be defined as revenue less expenses and taxes from ongoing operations, before extraordinary items and noncontrolling interest, per each share of common stock or unit outstanding during the reporting period.

No definition available.

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES:(Details 2) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended								12 Months Ended
	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2015	Mar. 31, 2014	Mar. 31, 2013
Basic earnings (loss) per share:
Net earnings (loss) from continuing operations	$ (6,039)	$ 4,156	$ (1,544)	$ (7,604)	$ (29,223)	$ 15,067	$ 9,864	$ 13,095	$ (9,147)	$ 10,992	$ 55,825
Earnings (loss) from discontinued operations	14	(318)	(48)	(1,532)	(3,696)	489	426	592	(1,884)	(2,189)	1,294
Net earnings (loss)									(11,031)us-gaap_ProfitLoss	8,803us-gaap_ProfitLoss	57,119us-gaap_ProfitLoss
Net loss attributable to noncontrolling interest										(60)	(488)
Net earnings (loss) attributable to Acxiom	$ (6,039)	$ 4,156	$ (1,544)	$ (7,604)	$ (29,223)	$ 15,067	$ 9,839	$ 13,180	$ (11,031)	$ 8,863	$ 57,607
Basic weighted-average shares outstanding									77,106	74,690	74,814
Net earnings (loss) from continuing operations (in dollars per share)	$ (0.08)	$ 0.06	$ (0.02)	$ (0.08)	$ (0.33)	$ 0.19	$ 0.13	$ 0.17	$ (0.12)	$ 0.15	$ 0.75
Net earnings (loss) from discontinued operations (in dollars per share)	$ 0.00	$ 0.00	$ 0.00	$ (0.02)	$ (0.05)	$ 0.01	$ 0.01	$ 0.01	$ (0.02)	$ (0.03)	$ 0.02
Net earnings (loss) (in dollars per share)									$ (0.14)acxm_ProfitLossPerShareBasic	$ 0.12acxm_ProfitLossPerShareBasic	$ 0.76acxm_ProfitLossPerShareBasic
Net loss attributable to noncontrolling interest (in dollars per share)									$ 0.00	$ 0.00	$ (0.01)
Net earnings (loss) attributable to Acxiom (in dollars per share)	$ (0.08)us-gaap_EarningsPerShareBasic	$ 0.05us-gaap_EarningsPerShareBasic	$ (0.02)us-gaap_EarningsPerShareBasic	$ (0.10)us-gaap_EarningsPerShareBasic	$ (0.38)us-gaap_EarningsPerShareBasic	$ 0.20us-gaap_EarningsPerShareBasic	$ 0.13us-gaap_EarningsPerShareBasic	$ 0.18us-gaap_EarningsPerShareBasic	$ (0.14)us-gaap_EarningsPerShareBasic	$ 0.12us-gaap_EarningsPerShareBasic	$ 0.77us-gaap_EarningsPerShareBasic
Diluted earnings (loss) per share:
Basic weighted-average shares outstanding									77,106	74,690	74,814
Dilutive effect of common stock options, warrants, and restricted stock as computed under the treasury stock method (in shares)										2,264	1,683
Diluted weighted-average shares outstanding									77,106	76,954	76,497
Net earnings (loss) from continuing operations (in dollars per share)	$ (0.08)	$ 0.06	$ (0.02)	$ (0.08)	$ (0.33)	$ 0.19	$ 0.12	$ 0.17	$ (0.12)	$ 0.14	$ 0.73
Net earnings (loss) from discontinued operations (in dollars per share)	$ 0.00	$ 0.00	$ 0.00	$ (0.02)	$ (0.05)	$ 0.01	$ 0.01	$ 0.01	$ (0.02)	$ (0.03)	$ 0.02
Net earnings (loss) (in dollars per share)									$ (0.14)acxm_ProfitLossPerShareDiluted	$ 0.11acxm_ProfitLossPerShareDiluted	$ 0.75acxm_ProfitLossPerShareDiluted
Net loss attributable to noncontrolling interest (in dollars per share)									$ 0.00	$ 0.00	$ (0.01)
Net earnings (loss) attributable to Acxiom (in dollars per share)	$ (0.08)us-gaap_EarningsPerShareDiluted	$ 0.05us-gaap_EarningsPerShareDiluted	$ (0.02)us-gaap_EarningsPerShareDiluted	$ (0.10)us-gaap_EarningsPerShareDiluted	$ (0.38)us-gaap_EarningsPerShareDiluted	$ 0.19us-gaap_EarningsPerShareDiluted	$ 0.13us-gaap_EarningsPerShareDiluted	$ 0.17us-gaap_EarningsPerShareDiluted	$ (0.14)us-gaap_EarningsPerShareDiluted	$ 0.12us-gaap_EarningsPerShareDiluted	$ 0.75us-gaap_EarningsPerShareDiluted
Stockholders' Equity
Number of shares outstanding under options, warrants and restricted stock units									1,829	834	6,709
Minimum
Statement
Range of exercise prices for options and warrants (in dollars per share)									$ 19.18	$ 29.30	$ 13.10
Maximum
Statement
Range of exercise prices for options and warrants (in dollars per share)									$ 62.06	$ 62.06	$ 62.06