SEGMENT INFORMATION: (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended								12 Months Ended
	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2014 segment	Mar. 31, 2013	Mar. 31, 2012
Information by business segment
Number of operating segments									3
Revenue:
Total revenue	$ 277,208	$ 277,873	$ 276,271	$ 266,193	$ 277,131	$ 273,102	$ 277,467	$ 271,659	$ 1,097,545	$ 1,099,359	$ 1,130,624
Income (loss) from operations:
Income from operations	(15,199)	19,780	19,631	24,072	20,189	26,898	30,208	25,424	48,284	102,719	85,563
Depreciation and amortization:
Depreciation and amortization									103,006	116,208	134,662
Total assets:
Total assets	1,323,301				1,187,706				1,323,301	1,187,706
Marketing and data services
Revenue:
Total revenue									805,153	788,740	798,796
Depreciation and amortization:
Depreciation and amortization									49,383	52,782	61,443
IT Infrastructure management
Revenue:
Total revenue									257,125	275,469	291,525
Depreciation and amortization:
Depreciation and amortization									52,872	60,042	66,497
Other services
Revenue:
Total revenue									35,267	35,150	40,303
Depreciation and amortization:
Depreciation and amortization									751	3,384	6,722
Operating segment | Marketing and data services
Income (loss) from operations:
Income from operations									78,433	80,017	95,173
Total assets:
Total assets	649,321				641,897				649,321	641,897
Operating segment | IT Infrastructure management
Income (loss) from operations:
Income from operations									32,847	29,330	24,970
Total assets:
Total assets	267,110				316,009				267,110	316,009
Operating segment | Other services
Income (loss) from operations:
Income from operations									1,941	(4,618)	(4,139)
Total assets:
Total assets	10,466				18,696				10,466	18,696
Corporate
Income (loss) from operations:
Income from operations									(64,937)	(2,010)	(30,441)
Total assets:
Total assets	$ 396,404				$ 211,104				$ 396,404	$ 211,104