SEGMENT INFORMATION: (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013 segment	Sep. 30, 2012
Information by business segment
Number of operating segments			3
Revenue:
Total revenue	$ 276,271	$ 277,467	$ 542,464	$ 549,126
lncome (loss) from operations:
Income from operations	19,631	30,208	43,703	55,632
Marketing and Data Services
Revenue:
Total revenue	200,952	198,602	388,745	391,084
lncome (loss) from operations:
Income from operations	16,014	22,262	28,671	40,965
IT Infrastructure Management
Revenue:
Total revenue	66,825	70,061	136,210	140,351
lncome (loss) from operations:
Income from operations	11,967	8,520	22,728	17,351
Other services
Revenue:
Total revenue	8,494	8,804	17,509	17,691
lncome (loss) from operations:
Income from operations	223	(542)	877	(2,492)
Corporate
lncome (loss) from operations:
Income from operations	$ (8,573)	$ (32)	$ (8,573)	$ (192)