DISPOSITIONS: Revenue and income from operations from the disposed business (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2017	Dec. 31, 2016
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Income from operations	$ 8,911	$ 7,407	$ (1,689)	$ 19,288
Zeta Interactive | Disposal Group, Disposed of by Sale, Not Discontinued Operations
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Revenues	0	0	0	20,375
Income from operations	$ 0	$ 0	$ 0	$ 120