SEGMENT INFORMATION: (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2015	Dec. 31, 2014
Revenues:
Total revenues	$ 221,193	$ 208,246	$ 625,433	$ 599,177
Gross profit:
Total gross profit	95,458	82,439	260,677	232,848
Income (loss) from operations:
Total income (loss) from operations	(374)	(2,290)	(5,299)	(21,819)
Gains, losses and other items, net	4,058	3,381	8,098	11,342
Operating segment
Revenues:
Total revenues	221,193	208,246	625,433	599,177
Gross profit:
Total gross profit	99,956	86,645	274,979	241,608
Income (loss) from operations:
Total income (loss) from operations	50,017	42,976	132,196	113,704
Operating segment | Marketing Services
Revenues:
Total revenues	115,725	114,403	336,430	336,441
Gross profit:
Total gross profit	38,561	41,572	112,139	120,275
Income (loss) from operations:
Total income (loss) from operations	20,309	21,859	55,070	63,263
Operating segment | Audience Solutions
Revenues:
Total revenues	77,046	75,933	217,718	227,020
Gross profit:
Total gross profit	45,265	39,215	121,258	116,245
Income (loss) from operations:
Total income (loss) from operations	30,723	28,919	80,000	84,484
Operating segment | Connectivity
Revenues:
Total revenues	28,422	17,910	71,285	35,716
Gross profit:
Total gross profit	16,130	5,858	41,582	5,088
Income (loss) from operations:
Total income (loss) from operations	(1,015)	(7,802)	(2,874)	(34,043)
Reconciling items
Gross profit:
Purchased intangible asset amortization	3,754	3,783	11,262	7,673
Non-cash stock compensation	666	423	1,442	1,087
Corporate expenses	78		1,598
Income (loss) from operations:
Corporate expenses	34,533	29,652	94,606	96,408
Gains, losses and other items, net	4,058	3,381	8,098	11,342
Purchased intangible asset amortization	3,754	3,783	11,262	7,673
Non-cash stock compensation	$ 8,046	$ 8,450	$ 23,529	$ 20,100