ACQUISITIONS: (Details 2) (USD $)	3 Months Ended	12 Months Ended			3 Months Ended	12 Months Ended
	Mar. 31, 2014	Mar. 31, 2014	Mar. 31, 2013	Mar. 31, 2012	Dec. 31, 2011 GoDigital	Mar. 31, 2012 GoDigital	Mar. 31, 2014 LiveRamp, Inc. Subsequent event	Mar. 31, 2014 Developed technology assets	Mar. 31, 2013 Developed technology assets	Mar. 31, 2012 Developed technology assets	Mar. 31, 2014 Customer/trademark assets	Mar. 31, 2013 Customer/trademark assets	Mar. 31, 2012 Customer/trademark assets
Amortization activity of purchased intangible assets
Total intangible assets, gross	$ 11,159,000	$ 11,159,000	$ 36,837,000	$ 43,363,000				$ 3,485,000	$ 18,014,000	$ 18,417,000	$ 7,674,000	$ 18,823,000	$ 24,946,000
Total accumulated amortization	(10,690,000)	(10,690,000)	(36,140,000)	(40,978,000)				(3,297,000)	(17,881,000)	(17,557,000)	(7,393,000)	(18,259,000)	(23,421,000)
Net intangible assets	469,000	469,000	697,000	2,385,000				188,000	133,000	860,000	281,000	564,000	1,525,000
Amortization expense		340,000	1,671,000	5,512,000
Impairment charges for intangible assets	900,000				4,000,000	4,000,000
Cash purchase price							$ 310,000,000