DISCONTINUED OPERATIONS: (Details) - USD ($) $ in Thousands		3 Months Ended
	Jul. 31, 2015	Jun. 30, 2015	Jun. 30, 2014	Mar. 31, 2015
Operating expenses:
Earnings (loss) from discontinued operations, net of tax		$ 4,143	$ 3,137
Carrying amounts of the major classes of assets and liabilities
Assets from discontinued operations		163,768		$ 172,284
Liabilities from discontinued operations		50,764		57,433
ITO
DIVESTITURES
Proceeds from Sale of Property Held-for-sale	$ 133,000
Stated sale price of business	140,000
Closing adjustments for sale of business	7,000
Contingent payments to be received subject to certain performance metrics	$ 50,000
Retained profits interest (as a percent)	5.00%
Earnings from discontinued operations
Revenues		52,580	55,532
Cost of revenue		40,568	43,104
Gross profit		12,012	12,428
Operating expenses:
Sales and marketing		998	554
General and administrative		3,768	2,942
Gains, losses and other items, net			324
Total operating expenses		4,766	3,820
Income from discontinued operations		7,246	8,608
Interest expense		(564)	(624)
Other, net		(3)	(306)
Income from discontinued operations before income taxes		6,679	7,678
Income taxes		2,536	3,009
Earnings (loss) from discontinued operations, net of tax		4,143	4,669
Carrying amounts of the major classes of assets and liabilities
Trade accounts receivable, net		31,497		35,743
Deferred income taxes		2,024		2,762
Other current assets		10,849		10,707
Property and equipment, net of accumulated depreciation and amortization		41,517		44,336
Goodwill		71,508		71,508
Purchased software licenses, net of accumulated amortization		4,763		3,943
Other assets, net		1,610		3,173
Assets from discontinued operations		163,768		172,172
Current installments of long-term debt		683		653
Trade accounts payable		4,731		8,857
Accrued expenses		7,661		7,480
Deferred revenue		2,222		3,658
Long-term debt		6,501		6,684
Deferred income taxes		22,390		22,716
Other liabilities		5,627		6,377
Liabilities from discontinued operations		49,815		56,425
ITO | Credit Agreement
DIVESTITURES
Proceeds from sale utilized to repay outstanding indebtedness	$ 55,000
Allocated interest expense		300	300
ITO | Maximum | Credit Agreement
DIVESTITURES
Maximum amount of common stock that may be repurchased		100,000
U.K. call center operation
Earnings from discontinued operations
Revenues			5,762
Operating expenses:
Income from discontinued operations before income taxes			343
Loss on sale of discontinued operations before income taxes			(1,875)
Earnings (loss) from discontinued operations, net of tax			$ (1,532)
Carrying amounts of the major classes of assets and liabilities
Trade accounts receivable, net				112
Assets from discontinued operations				112
Other accrued expenses		949		1,008
Liabilities from discontinued operations		$ 949		$ 1,008