GOODWILL: (Details) (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Sep. 30, 2014	Sep. 30, 2014 Marketing and Data Services	Sep. 30, 2014 Marketing and Data Services United States	Sep. 30, 2014 Marketing and Data Services Australia	Sep. 30, 2014 Marketing and Data Services China	Sep. 30, 2014 Marketing and Data Services Brazil	Sep. 30, 2014 IT Infrastructure Management	Mar. 31, 2014 IT Infrastructure Management
Goodwill
Goodwill at the beginning of the period	$ 358,384	$ 286,876	$ 482,700	$ 12,500	$ 6,000	$ 800	$ 71,508	$ 71,508
LiveRamp acquisition	215,967	215,967
Change in foreign currency translation adjustment	(883)	(883)
Goodwill at the end of the period	$ 573,468	$ 501,960	$ 482,700	$ 12,500	$ 6,000	$ 800	$ 71,508	$ 71,508