DISCONTINUED OPERATIONS AND DISPOSITIONS: - Summary Results of Operations and Carrying Amounts of Major Classes of Assets and Liabilities of ITO (Details) - USD ($) $ in Thousands		1 Months Ended	3 Months Ended				12 Months Ended
	Jul. 31, 2015	Aug. 31, 2016	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2017	Mar. 31, 2016	Mar. 31, 2015
Proceeds from Divestiture of Businesses, Net of Cash Divested [Abstract]
Gain (Loss) on Disposition of Business							$ 300
Operating expenses:
Income from continuing operations before income taxes							8,642	$ (20,280)	$ (41,347)
Income taxes (benefit)								3,598	11,973
Earnings (loss) from discontinued operations, net of tax			$ 111	$ (971)	$ 12,068	$ 4,143		15,351	15,511
Credit Agreement | Maximum
Proceeds from Divestiture of Businesses, Net of Cash Divested [Abstract]
Amount of share repurchases allowed under the financial covenant	$ 100,000
Zeta Interactive | Sale to Zeta
Proceeds from Divestiture of Businesses, Net of Cash Divested [Abstract]
Proceeds from Divestiture of Businesses		$ 22,000
Subordinated promissory note		$ 4,000
Debt Instrument, Interest Rate, Stated Percentage		6.00%
Gain (Loss) on Disposition of Business							300
Income tax benefit							4,300
Major classes of line items constituting earnings (loss) from discontinued operations, net of tax:
Revenues							20,375	60,199	64,634
Operating expenses:
Income from continuing operations before income taxes							$ (157)	10,105	18,659
ITO | Discontinued operations, held-for-sale or disposed of by sale
Major classes of line items constituting earnings (loss) from discontinued operations, net of tax:
Revenues								69,410
Cost of revenue								50,837
Gross profit								18,573
Operating expenses:
Sales and marketing								1,192
General and administrative								6,053
Gain on sale of discontinued operations								(9,349)
Gains, losses and other items, net								367
Total operating expenses								(1,737)
Earnings (loss) from discontinued operations								20,310
Interest expense								(681)
Other, net								(230)
Earnings (loss) from discontinued operations before income								19,399
Income taxes (benefit)								3,598
Earnings (loss) from discontinued operations, net of tax								15,801
ITO | Discontinued operations, held-for-sale or disposed of by sale | Credit Agreement
Operating expenses:
Interest expense								$ (400)	(1,300)
ITO | Sale to ITO
Proceeds from Divestiture of Businesses, Net of Cash Divested [Abstract]
Proceeds from Divestiture of Businesses	131,000
Closing adjustments and transaction costs	9,000
Stated sale price of business	140,000
Gain on the sale	9,300
Disposal Group, Including Discontinued Operation, Consideration	140,000
ITO | Sale to ITO | Maximum
Proceeds from Divestiture of Businesses, Net of Cash Divested [Abstract]
Contingent payments to be received subject to certain performance metrics	$ 50,000
ITO | Discontinued operations held-for-sale
Major classes of line items constituting earnings (loss) from discontinued operations, net of tax:
Revenues									215,148
Cost of revenue									167,524
Gross profit									47,624
Operating expenses:
Sales and marketing									2,771
General and administrative									10,736
Gains, losses and other items, net									2,037
Total operating expenses									15,544
Earnings (loss) from discontinued operations									32,080
Interest expense									(2,378)
Other, net									(334)
Earnings (loss) from discontinued operations before income									29,368
Income taxes (benefit)									11,973
Earnings (loss) from discontinued operations, net of tax									$ 17,395