SEGMENT INFORMATION: (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Jun. 30, 2012 Segment	Jun. 30, 2011
Information by business segment
Number of operating segments	3
Revenue:
Revenues	$ 271,659	$ 276,044
Income (loss) from operations:
Income (loss) from operations	25,424	20,704
Marketing and Data Services
Revenue:
Revenues	185,676	184,996
Income (loss) from operations:
Income (loss) from operations	18,366	17,260
IT Infrastructure Management
Revenue:
Revenues	70,290	73,050
Income (loss) from operations:
Income (loss) from operations	8,831	4,247
Other services
Revenue:
Revenues	15,693	17,998
Income (loss) from operations:
Income (loss) from operations	(1,613)	(559)
Corporate
Income (loss) from operations:
Income (loss) from operations	$ (160)	$ (244)