DISCONTINUED OPERATIONS: - Sale of ITO Business (Details) - USD ($) $ in Thousands		12 Months Ended
	Jul. 31, 2015	Mar. 31, 2016	Mar. 31, 2015	Mar. 31, 2014
Credit Agreement
Discontinued operations
Outstanding indebtedness repaid with proceeds from sale	$ 55,000
Maximum | Credit Agreement
Discontinued operations
Amount of share repurchases allowed under the financial covenant	100,000
ITO | Discontinued operations, held-for-sale or disposed of by sale
Discontinued operations
Interest expense		$ 681
ITO | Discontinued operations, held-for-sale or disposed of by sale | Credit Agreement
Discontinued operations
Interest expense		$ 400	$ 1,300	$ 1,700
ITO | Discontinued operations sold
Discontinued operations
Net consideration	131,000
Stated sale price of business	140,000
Closing adjustments and transaction costs	9,000
Gain on the sale	9,300
ITO | Discontinued operations sold | Maximum
Discontinued operations
Contingent payments to be received subject to certain performance metrics	$ 50,000